Which HALS is suitable for agricultural film?

Agricultural film requires strong UV protection together with resistance to pesticides, sulfur-containing chemicals and repeated outdoor exposure. High-molecular-weight HALS are commonly considered for long service life, but the final grade must be compatible with the film resin, thickness and agrochemical environment. Sulfur-resistant or less basic HALS may be needed in demanding greenhouse applications. Validation should include accelerated weathering and chemical-exposure testing.

Why can acidic pigments or flame retardants reduce HALS performance?

Conventional HALS contain basic amine functionality. Acidic pigments, halogenated flame-retardant systems, acidic fillers or certain catalyst residues can interact with or deactivate the HALS, reducing light-stabilization efficiency. In such formulations, formulators may consider less basic or NOR-type HALS, adjust the additive package, or use acid scavengers where appropriate. Compatibility testing is necessary because the interaction depends on the full formulation.

How do high-molecular-weight HALS differ from low-molecular-weight HALS?

Low-molecular-weight HALS generally disperse easily and can provide rapid stabilization, but they may be more prone to migration or extraction. High-molecular-weight or oligomeric HALS usually offer lower volatility, better extraction resistance and longer service life, which is valuable in films, fibres and outdoor articles. The best choice depends on polymer compatibility, article thickness, exposure conditions and contact with water, detergents or chemicals.

Are plastic additives suitable for food-contact or regulated applications?

Suitability depends on the exact additive grade, polymer, use level, food type, temperature and destination market. A general technical grade should not automatically be described as food-contact compliant. Buyers should define the applicable regulation and request supporting declarations, substance identity, purity data and migration or extraction information where required. SUNCHEM can check available documentation for a specific product and supplier, but the finished-material manufacturer remains responsible for confirming compliance of the final formulation and article.

Can UV absorbers and HALS be used together in the same plastic formulation?

Yes. UV absorbers and HALS are frequently used together because they protect the polymer through different mechanisms. The UV absorber reduces the amount of damaging radiation entering the material, while the HALS suppresses radical reactions caused by photo-oxidation. The optimum ratio depends on polymer type, article thickness, pigment system, outdoor exposure and service-life target. Compatibility must also be checked because acidic additives, certain pigments and some flame-retardant systems can reduce HALS effectiveness.

Can you provide COA, SDS/MSDS, and TDS?

Yes. COA, SDS and TDS are available for suitable products. Availability depends on the exact product, manufacturer, destination market and order stage. Additional declarations or test reports can be checked case by case after the buyer provides the product, application and regulatory requirements.

Can you supply both branded and custom specifications?

SUNCHEM supplies selected branded product lines and can evaluate custom specifications or alternative grades through qualified manufacturing partners. Feasibility depends on chemistry, volume, test methods, regulatory requirements and development cost. Custom products require technical review and sample approval before commercial supply.

Do you support long-term supply agreements?

Yes. SUNCHEM can support scheduled deliveries, annual-volume planning, specification management, quality documentation and supply-risk coordination for approved products. Commercial terms depend on forecast accuracy, product availability, payment terms and destination logistics.

Do you support samples?

Sample support is available for qualified evaluation projects, subject to product type, supplier policy, quantity, destination and shipping restrictions. Please provide the product or CAS number, target application, required quantity and courier details. Hazardous or restricted products may require additional review.

How can additive migration, blooming or plate-out be reduced?

Migration and blooming usually occur when an additive has limited compatibility with the polymer, is used above its solubility limit, or is exposed to heat over time. Plate-out may also result from volatility, decomposition or interaction with lubricants and other formulation components. These problems can often be reduced by choosing a higher-molecular-weight or polymeric grade, lowering dosage, improving dispersion and checking the complete additive package. Processing temperature, cooling conditions and storage tests should be included in the evaluation.

How do I choose an antioxidant package for PP, PE, ABS or engineering plastics?

Start with the polymer, processing temperature, residence time, expected service temperature and required regulatory status. PP and PE commonly use a hindered phenolic antioxidant together with a phosphite, while long-term heat ageing may require a thioester synergist. ABS and engineering plastics may need additives with higher thermal stability, lower volatility or better colour control. Other formulation components, including pigments, fillers, recycled resin and flame retardants, can change the required package. The final formulation should therefore be validated by melt-flow, colour, oven-ageing and application-specific testing.

How do I request a quotation?

Send the product name or CAS number, required specification, quantity, application, destination port, preferred Incoterm and documentation requirements. These details allow SUNCHEM to confirm a suitable supply source, packaging, lead time and freight basis before issuing a quotation.

How do I select a halogen-free flame retardant for a plastic application?

Selection begins with the polymer and the required fire standard, such as a target UL 94 rating, limiting oxygen index or smoke requirement. Phosphorus-based systems are commonly considered for PC/ABS, epoxy and intumescent polyolefin applications; melamine-based products are used in selected polyamides; and mineral flame retardants such as aluminum hydroxide or magnesium hydroxide require relatively high loadings. Mechanical properties, processing temperature, moisture sensitivity, electrical performance and colour must be evaluated together with flame resistance. A material described as halogen-free should also be checked against the customer's specific regulatory or test definition.

How much plastic additive should be used in a formulation?

There is no universal dosage. Antioxidants, UV stabilizers and flame retardants have very different use levels, and the effective concentration depends on the polymer, processing history, product thickness, exposure conditions and performance target. Supplier starting ranges can be used for initial trials, but the lowest-cost formulation is not always the lowest dosage because synergistic combinations may perform better. Final dosage should be established through laboratory compounding and tests such as colour, melt-flow retention, oven ageing, weathering and the required flammability standard.

What are the main types of plastic additives and what does each type do?

Plastic additives are selected according to the degradation or processing problem that must be controlled. Primary antioxidants interrupt oxidation reactions, while secondary antioxidants decompose hydroperoxides formed during processing. UV absorbers absorb harmful ultraviolet energy, and hindered amine light stabilizers (HALS) slow photo-oxidation. Flame retardants reduce ignition or flame spread, while processing aids, lubricants, nucleating agents and other specialty additives improve manufacturing or end-use performance. The correct package depends on the polymer, processing temperature, service environment and regulatory requirements.

What information is needed to recommend the right plastic additive?

Please provide the polymer type and grade, processing method and maximum processing temperature, existing formulation, problem to be solved, target service life, exposure conditions, required test standard and destination-market compliance needs. For replacement projects, include the current additive name, dosage and performance gap. This information allows a supplier to compare suitable antioxidant, light-stabilizer, UV-absorber or flame-retardant options and reduces unnecessary trial work.

What is the difference between UV absorbers and HALS light stabilizers?

UV absorbers protect polymers by absorbing ultraviolet radiation and converting it into less harmful energy. HALS do not mainly absorb UV light; instead, they interrupt the photo-oxidation cycle and regenerate during the stabilization process. UV absorbers are especially useful where sufficient material thickness allows effective absorption, while HALS are highly effective in many outdoor plastics, coatings and thin articles. In demanding applications, a UV absorber and a HALS are often combined to improve colour retention, gloss and mechanical-property retention.

What is the difference between plastic additives and masterbatch?

A plastic additive is the functional chemical itself, while a masterbatch is a concentrated mixture of additives or pigments dispersed in a carrier resin. Masterbatch can simplify dosing, reduce dust and improve dispersion, but the carrier and active-content level must be compatible with the final polymer and process.

What is the difference between primary and secondary antioxidants for plastics?

Primary antioxidants, commonly hindered phenols, donate hydrogen to free radicals and help stop the oxidation chain reaction during processing and service life. Secondary antioxidants, such as phosphites and thioesters, decompose hydroperoxides before they generate additional radicals. They are often used together because the combination provides better processing stability and longer-term heat ageing protection than either type alone. Selection and dosage should be confirmed through formulation trials because polymer type, temperature and exposure conditions strongly affect performance.

What plastic additives does SUNCHEM supply?

SUNCHEM supplies antioxidants, light stabilizers, UV absorbers, flame retardants, optical brighteners, polymerization inhibitors and selected processing additives from qualified Chinese manufacturers. Core product lines include SUNNOX® antioxidants, SUNLIGHT® HALS, SUNSORB® UV absorbers and SUNFR® flame retardants. Availability, specification and documentation depend on the exact grade and intended application.

Can SUNCHEM support equivalent-grade evaluation for branded plastic additives?

SUNCHEM can help screen Chinese supply options against the buyer's target specification, application and documentation requirements. Equivalent-grade evaluation should compare chemical identity, active content, physical properties, impurity profile and performance in the customer's formulation. A proposed alternative should not be treated as automatically interchangeable; sampling and application testing remain necessary before commercial approval.

How can buyers compare plastic additive suppliers beyond price?

Compare product identity, test methods, batch consistency, impurity profile, colour, volatility, packaging, documentation, production capacity and change-control practices. Also evaluate whether the supplier understands the application, can support samples and complaints, and can maintain supply during raw-material or logistics disruptions. A lower unit price may create higher total cost if quality variation causes production loss or reformulation.

How should plastic additives be stored and what affects shelf life?

Most plastic additives should be kept in unopened original packaging in a cool, dry, well-ventilated area away from heat, direct sunlight and moisture. Liquid phosphites and hygroscopic products may require tighter moisture control, while powders should be protected from contamination and caking. Shelf life depends on the exact grade, packaging and storage conditions, so the supplier's product-specific recommendation should be followed.

What documents should be checked when sourcing plastic additives from China?

Buyers should review the current specification, recent COA, SDS, TDS, manufacturing origin, packaging, shelf life and any required regulatory declarations. For sensitive applications, confirm test methods, impurity limits, registration status, food-contact support, RoHS or REACH information and change-control procedures. Documents should match the exact grade and manufacturer rather than a generic product name.

How can yellowing caused by antioxidant degradation be reduced?

Yellowing can result from excessive processing temperature, long residence time, an unsuitable antioxidant package, interactions with pigments or flame retardants, or contamination in recycled resin. It can often be reduced by improving temperature control, using a more hydrolytically stable phosphite, balancing primary and secondary antioxidants, and checking additive purity and compatibility. Comparative colour testing after extrusion and heat ageing is essential before changing the formulation.

What is the difference between Antioxidant 1010 and Antioxidant 1076?

Antioxidant 1010 is a high-molecular-weight hindered phenolic antioxidant with very low volatility and is widely used in polyolefins, engineering plastics, elastomers and adhesives. Antioxidant 1076 is also a hindered phenol, but it has a lower molecular weight and can offer easier incorporation in some polymer systems. Both provide long-term thermal oxidation protection. The preferred grade depends on polymer type, processing temperature, volatility requirements, colour target and the other stabilizers in the package.

When should DSTDP or DLTDP be added to an antioxidant package?

DSTDP and DLTDP are thioester secondary antioxidants used mainly when long-term heat-ageing performance is important. They are commonly combined with hindered phenolic antioxidants in polyolefins, wire and cable compounds, automotive parts and other applications exposed to elevated temperatures. They are less focused on initial colour than phosphites and more focused on extended thermal stability. Compatibility, odour, extraction resistance and regulatory requirements should be checked for the final application.

Why are Antioxidant 1010 and Antioxidant 168 often used together?

Antioxidant 1010 is a primary antioxidant that interrupts free-radical oxidation, while Antioxidant 168 is a phosphite secondary antioxidant that decomposes hydroperoxides formed during processing. Using them together provides complementary protection against melt-processing degradation and longer-term ageing. The ratio should be optimized for the polymer, processing temperature, recycled content, colour requirements and expected service life.

Do UV absorbers affect the colour or transparency of plastics?

A properly selected UV absorber normally has limited effect on visible transparency at recommended use levels, but some grades can contribute a slight initial colour or haze, especially at higher dosages or in very clear articles. Dispersion, additive purity, polymer compatibility and processing temperature all influence appearance. Transparent applications should be evaluated using haze, yellowness index and light-transmission measurements.

What is the difference between UV Absorber 326 and UV Absorber 327?

Both are benzotriazole UV absorbers used to protect polymers from ultraviolet degradation. Their differences in molecular structure affect absorption profile, volatility, thermal stability, compatibility and performance in specific polymers. UV 326 is commonly used in polyolefins, PVC, ABS and coatings, while UV 327 may be selected where lower volatility or different compatibility is required. Direct substitution should be confirmed through formulation and weathering tests.

Which UV absorber is suitable for polyolefin films and outdoor plastic products?

The choice depends on polymer type, film thickness, required service life, processing temperature and the presence of pigments or fillers. Benzotriazole UV absorbers are widely used because of their broad UV absorption and thermal stability. Thin films often benefit from a combined package containing both a UV absorber and a HALS. Final selection should be validated through accelerated weathering and outdoor exposure testing.

How do high-molecular-weight HALS differ from low-molecular-weight HALS?

Low-molecular-weight HALS generally disperse easily and can provide rapid stabilization, but they may be more prone to migration or extraction. High-molecular-weight or oligomeric HALS usually offer lower volatility, better extraction resistance and longer service life, which is valuable in films, fibres and outdoor articles. The best choice depends on polymer compatibility, article thickness, exposure conditions and contact with water, detergents or chemicals.

Which HALS is suitable for agricultural film?

Agricultural film requires strong UV protection together with resistance to pesticides, sulfur-containing chemicals and repeated outdoor exposure. High-molecular-weight HALS are commonly considered for long service life, but the final grade must be compatible with the film resin, thickness and agrochemical environment. Sulfur-resistant or less basic HALS may be needed in demanding greenhouse applications. Validation should include accelerated weathering and chemical-exposure testing.

Why can acidic pigments or flame retardants reduce HALS performance?

Conventional HALS contain basic amine functionality. Acidic pigments, halogenated flame-retardant systems, acidic fillers or certain catalyst residues can interact with or deactivate the HALS, reducing light-stabilization efficiency. In such formulations, formulators may consider less basic or NOR-type HALS, adjust the additive package, or use acid scavengers where appropriate. Compatibility testing is necessary because the interaction depends on the full formulation.

Can flame retardants reduce mechanical properties or processing stability?

Yes. High flame-retardant loading can reduce impact strength, elongation, flow or surface quality, while some products may be moisture-sensitive or thermally unstable at the polymer processing temperature. Proper particle size, surface treatment, dispersing conditions and synergists can reduce these effects. Flame performance must be balanced with mechanical, electrical and processing requirements rather than optimized in isolation.

How do ATH and magnesium hydroxide flame retardants differ?

Both are halogen-free mineral flame retardants that release water endothermically and can reduce smoke. Aluminum hydroxide decomposes at a lower temperature and is commonly used in EVA, thermosets, cable compounds and construction materials processed below its decomposition range. Magnesium hydroxide has higher thermal stability and is more suitable for polymers processed at higher temperatures. Both often require relatively high loading, so particle size, surface treatment and mechanical-property retention are important.

What halogen-free flame retardants do you offer?

Available halogen-free options may include phosphate esters such as BDP and RDP, ammonium polyphosphate, melamine-based systems, DOPO derivatives, aluminum hydroxide and magnesium hydroxide. Selection depends on the polymer, processing temperature, target fire rating, smoke requirements and mechanical-property limits. Regulatory status must be confirmed for the exact product and supply chain.

What information is required to select a flame retardant for UL 94 testing?

Provide the polymer and grade, target UL 94 rating, test thickness, processing temperature, colour, mechanical-property requirements, electrical requirements and any halogen-free or smoke restrictions. It is also important to identify fillers, pigments, glass fibre and other additives because they can change flame performance. A supplier can suggest a starting system, but the finished compound must be tested by the responsible manufacturer or an accredited laboratory.

What is DOPO used for?

DOPO is a reactive phosphorus-containing flame-retardant intermediate used in epoxy resins and other thermosetting systems, including selected electronic laminates, encapsulants and composite applications. It is often used to introduce phosphorus into the polymer structure, but formulation and curing performance must be validated in the final resin system.

What is TBBPA and where is it used?

TBBPA, or tetrabromobisphenol A, is a brominated flame retardant used mainly as a reactive component in epoxy resins for printed circuit board laminates and, in some applications, as an additive in polymers such as ABS. The suitable grade and use level depend on the resin system, target fire standard and destination-market requirements.

What is the difference between reactive and additive flame retardants?

Reactive flame retardants chemically bond into the polymer or resin network during manufacture, which can reduce migration and improve permanence. Additive flame retardants are physically blended into the polymer and are generally easier to formulate across different materials. Reactive systems are common in selected epoxy, polyurethane and unsaturated polyester applications, while additive systems are widely used in thermoplastics. The choice affects processing, mechanical properties, recyclability and regulatory performance.

Can too much optical brightener cause colour problems?

Yes. Excessive dosage may produce a bluish or greenish cast, uneven colour, fluorescence saturation or migration. The optimum level is often low and depends on the base resin, pigments, fillers and article thickness. Dosage should be established by colour measurement and visual comparison under relevant lighting.

How do I choose an optical brightener for plastics?

Selection depends on polymer compatibility, processing temperature, colour target, migration resistance and required transparency. A brightener suitable for PVC may not be ideal for high-temperature engineering plastics. Comparative trials should evaluate dosage, whiteness, hue, thermal stability and long-term colour retention.

What is an optical brightener and how does it improve polymer appearance?

An optical brightener absorbs ultraviolet light and re-emits part of it as blue visible light, reducing the visual effect of yellowing and making white or light-coloured plastics appear brighter. It does not remove the underlying cause of degradation, so antioxidant and light-stabilizer packages may still be required.

How do nucleating agents affect polypropylene performance?

Nucleating agents promote faster and more uniform crystallization in polypropylene. They can shorten moulding cycles and improve stiffness, dimensional stability or clarity depending on the grade. Performance depends on resin type, cooling conditions, dosage and dispersion.

What do processing aids do in plastic manufacturing?

Processing aids can improve melt flow, fusion, dispersion, surface finish, release or throughput. Their function depends on the polymer and process. They may reduce melt fracture in extrusion, improve PVC fusion, assist filler dispersion or lower equipment deposits. Selection must consider downstream properties and possible migration.

What is the difference between internal and external lubricants in plastics?

Internal lubricants reduce friction within the polymer melt and can improve flow, while external lubricants reduce adhesion between the polymer and metal processing surfaces. Many formulations require a balance of both. Excess lubricant can reduce fusion, printing, bonding or mechanical properties, so dosage should be optimized experimentally.

Can polymerization inhibitor concentration decrease during storage?

Yes. Inhibitors can be consumed by oxygen, radicals, contaminants, heat or light over time. Long storage, elevated temperature and poor circulation may create uneven inhibitor levels. Users should follow product-specific monitoring, temperature-control and replenishment procedures and should not rely only on the original loading concentration.

How should a polymerization inhibitor be selected for monomers?

Selection starts with the monomer chemistry, process temperature, oxygen availability, storage duration and downstream polymerization method. Some inhibitors require dissolved oxygen to work effectively, while others are used for high-temperature processing or emergency protection. Removal or residual-inhibitor requirements must also be considered.

What is the purpose of a polymerization inhibitor?

A polymerization inhibitor slows or prevents unwanted polymerization during manufacture, storage and transport of reactive monomers. It helps reduce heat generation, viscosity increase, gel formation and equipment fouling. The inhibitor type and concentration must match the monomer, oxygen level, storage temperature and expected holding time.

Can plastic additives be used in recycled polymers?

Yes. Recycled polymers often require restabilization because previous processing and service life have consumed part of the original additive package. Antioxidants, compatibilizers, odour-control products, chain extenders or light stabilizers may be considered. The correct package depends on contamination, degradation level and target application.

Foire aux questions

Quel HALS convient au film agricole?

Pourquoi les pigments acides ou les retardateurs de flamme peuvent-ils réduire les performances HALS?

En quoi les HALS de haut poids moléculaire diffèrent-ils des HALS de faible poids moléculaire ??

juin 30, 2026

Comment sélectionner un fournisseur d’antioxydants fiable en Chine

Maison | Les sujets |

Étape 1: Définissez vos exigences techniques

Spécification de pureté (par exemple., ≥99,0 %)
Paramètres physiques clés: point de fusion, Couleur, indice d'acide, humidité
Conformité réglementaire requise: FDA, UE 10/2011, ATTEINDRE, RoHS
Documents requis: COA, FDS, DT, Déclaration REACH SVHC

Étape 2: Évaluer les systèmes qualité

Un COA complet devrait inclure: nom du produit, Numéro CAS, numéro de lot, date de l'examen, tous les résultats des paramètres, et références de méthodes. Les COA sans numéros de lot ni dates de test sont un signal d'alarme.

Demandez une FDS au format de votre pays (SGH). Vérifier l'ISO 9001 statut de certification du fabricant.

Étape 3: Évaluer la conformité réglementaire

ATTEINDRE (UE): Vérifier l'enregistrement pour les substances importées >1 tonne/an
FDA (USA): Demande 21 Lettre de conformité CFR pour les applications en contact alimentaire
RoHS/SVHC: Demander une déclaration SVHC selon l'article REACH 33

Étape 4: Évaluer la capacité d’exportation

Expérience d'exportation vers votre pays cible
Classification correcte du code SH
Disponibilité de tous les documents d'exportation: facture, liste de colisage, B/L, ROUCOULER
Flexibilité sur les Incoterms (GOUSSET, CIF, DDP, DAP)

Drapeaux rouges courants

Impossible de fournir un COA spécifique au lot sur demande
Tous les résultats COA sont étrangement identiques d’un lot à l’autre
Aucune FDS disponible, ou FDS copiée à partir d'un autre produit
Impossible de nommer quel fabricant produit le matériau
Prix nettement inférieur au niveau du marché
Refus de fournir des échantillons avant une commande commerciale

FAQ

Quel est le MOQ typique de Chine?
Par l'intermédiaire d'un agent d'exportation: souvent 100 kg–1 MT avec expéditions groupées. Usine directe: généralement 1 à 5 MT par produit. Échantillons: 100–500 g pour la qualification.

Contacter SUNCHEM

SUNCHEM est un agent d'exportation de produits chimiques spécialisés expérimenté avec une capacité de documentation complète et un approvisionnement de qualité fiable.. Contactez-nous pour démarrer votre évaluation de fournisseurs.

Article écrit parÉquipe éditoriale de SUNCHEM

Dimension de comparaison	Antioxydant 1010	Antioxydant 168
Rôle chimique	Antioxydant primaire (type phénolique encombré) — donne des atomes d'hydrogène pour interrompre la chaîne des radicaux oxydatifs.	Antioxydant secondaire (type de phosphite) — réduit les hydroperoxydes à un état stable, alcools non réactifs.
Mécanisme de fonction	Élimination des radicaux libres – interrompt la réaction en chaîne au stade de la propagation.	Décomposition de l'hydroperoxyde - élimine les intermédiaires réactifs avant qu'ils ne génèrent de nouveaux radicaux.
Rôle de protection des polymères	Protège contre la dégradation thermo-oxydative à long terme pendant toute la durée de vie du polymère.	Protège contre la dégradation au cours de l'étape de transformation – décoloration et perte de propriété induites par la chaleur et le cisaillement.
Stabilité du traitement	Contribue à une protection modérée pendant le traitement; la principale force est la stabilisation à long terme.	Offre une forte stabilité en phase fondue — rétention de la couleur et contrôle de la viscosité pendant l'extrusion et le moulage.
Stabilité à long terme	Fournit une forte stabilité thermique-oxydative à long terme tout au long de la durée de vie du produit.	Stabilité limitée à long terme seule; plus fort lorsqu’il est associé à un antioxydant primaire.
Applications typiques	Polypropylène, polyéthylène, plastiques techniques, fibres, films — stabilisation thermique à long terme à usage général.	Mêmes familles de polymères de base, appliqué spécifiquement au niveau de la composition, extrusion, et étapes de moulage.
Scénarios d'utilisation courants	Utilisé seul lorsque les conditions de traitement sont modérées et que la résistance au vieillissement thermique à long terme est la priorité.	Rarement utilisé seul; généralement combiné avec un antioxydant primaire dans le cadre d'un ensemble de stabilisation synergique.

Nom du produit	Antioxydant 168 (Tris(2,4-di-tert-butylphényle) phosphite)
Marque	SUNNOX® 168
Numéro CAS.	31570-04-4
Catégorie chimique	Antioxydant secondaire (Phosphite) / Additif plastique
Fonction principale	Décompose les hydroperoxydes formés lors du traitement des polymères, protégeant la stabilité du traitement et la rétention de la couleur
Applications	Polyoléfines, plastiques techniques, film & extrusion de fibres, composition & mélange maître, polymères pour contact alimentaire — voir la liste complète ci-dessous

Numéro CAS.	31570-04-4
Formule chimique	C42H63O3P
Synonymes chimiques	Irgafos® 168; Irganox® 168; Songnox® 1680; PAIRE Hostanox 24; Coup de couteau ADK 2112; Alcanox 240; Tris(2,4-di-tert-butylphényle) phosphite — liste complète des synonymes disponible sur demande

Point de fusion	181–184 °C (allumé.)
Point d'ébullition	594.2 °Chat 760 mmHg
Point de rupture	394 °C
Apparence	En attente de confirmation de SUNCHEM — forme commerciale typique (par exemple. poudre/granulé) à confirmer par rapport à la qualité d'origine réelle
Recommandation de stockage	En attente de confirmation de SUNCHEM — les antioxydants phosphites sont généralement sensibles à l’humidité et à l’hydrolyse; données spécifiques sur la température de stockage et la durée de conservation à confirmer

Type d'antioxydant	Secondaire (phosphite), décomposeur d'hydroperoxyde
Appariement commun	Fréquemment combiné avec un antioxydant phénolique primaire — par exemple. Antioxydant 1010 — pour une protection synergique
Dosage	En attente de confirmation de SUNCHEM — varie selon le polymère et le processus; contactez l'équipe technique de SUNCHEM pour obtenir des conseils spécifiques à votre application

	Antioxydant 168 (SUNNOX® 168)	Antioxydant 1010 (SUNNOX® 1010)
Numéro CAS.	31570-04-4	6683-19-8
Taper	Antioxydant secondaire (phosphite)	Antioxydant primaire (phénolique encombré)
Mécanisme	Décomposeur d'hydroperoxyde	Chasseur de radicaux libres
Rôle principal	Stabilité du traitement à haute température	Protection thermo-oxydante longue durée
Souvent combiné avec	Antioxydant 1010 (voir à droite)	Antioxydant 168 (voir à gauche)

Produit	Numéro CAS.	Bifurquer	Mécanisme	Idéal pour
Antioxydant 1010	6683-19-8	Primaire	Charognard radical	Choix principal par défaut; polyoléfine large / utilisation du plastique technique	Voir →
Antioxydant 1076	2082-79-3	Primaire	Charognard radical	Point de fusion inférieur (50–52°C) — manipulation/dispersion plus facile dans certains processus	Voir →
Antioxydant 168	31570-04-4	Secondaire	Décomposeur d'hydroperoxyde	Stabilité du traitement à haute température	Voir →
DSTDP	693-36-7	Thioester	Décomposeur d'hydroperoxyde	Vieillissement thermique à long terme rentable	Voir →
DLTDP	123-28-4	Thioester	Décomposeur d'hydroperoxyde	Alternative à DSTDP, longueur de chaîne différente	Voir →

Nom du produit	Antioxydant 1010 (Pentaérythritol Tétrakis[3-(3,5-Di-tert-butyl-4-hydroxyphényle)propionate])
Marque	SUNNOX® 1010
Numéro CAS.	6683-19-8
Catégorie chimique	Antioxydant primaire phénolique encombré / Additif plastique
Fonction principale	Empêche la dégradation oxydative pendant le traitement et la durée de vie à long terme
Applications	Polyoléfines, plastiques techniques, PVC & caoutchouc, polymères pour contact alimentaire, fibres & film, adhésifs — voir la liste complète ci-dessous

Densité	1.077 g/cm³
Point d'ébullition	1005.8°C à 760 mmHg
Point de fusion	115–118°C (déc.)
Point de rupture	247.3°C
Indice de réfraction	1.535
Formulaire	Soigné
pKa	11.71 ± 0.40 (Prédit)
Température de stockage	2–8°C

Type d'antioxydant	Primaire (phénolique encombré), chasseur de radicaux libres
Appariement commun	Fréquemment combiné avec des antioxydants secondaires (par exemple. Antioxydant 168) pour une protection synergique
Dosage	Varie selon le polymère et le procédé — contactez l'équipe technique de SUNCHEM pour obtenir des conseils spécifiques à votre application

Foire aux questions

Des produits et solutions

CDMA

Produits chimiques spécialisés

Polymères et matériaux

Pharma et intermédiaires

Intermédiaires pharmaceutiques

Nutraceutiques

Comment sélectionner un fournisseur d’antioxydants fiable en Chine

Étape 1: Définissez vos exigences techniques

Étape 2: Évaluer les systèmes qualité

Étape 3: Évaluer la conformité réglementaire

Étape 4: Évaluer la capacité d’exportation

Drapeaux rouges courants

FAQ

Contacter SUNCHEM

Antioxydant 1010 vs antioxydant 168: Différences, Rôles, et quand les utiliser ensemble

Antioxydants primaires et secondaires

Antioxydant 1010 vs antioxydant 168 Tableau de comparaison

Explication du mécanisme technique

Antioxydant 1010 — Antioxydant primaire

Antioxydant 168 — Antioxydant secondaire

Pourquoi antioxydant 1010 et 168 Travailler ensemble

Antioxydant primaire (1010)

Antioxydant secondaire (168)

= Système combiné

Guide de décision de l'acheteur

Choisissez un antioxydant 1010

Choisissez un antioxydant 168

Choisissez un système combiné

Applications

Polypropylène (PP)

Polyéthylène (PE)

Plastiques techniques

Traitement des polymères (Général)

Pourquoi utiliser SUNCHEM

Produits connexes

Antioxydant 1010

Antioxydant 168

Centre de connaissances sur les antioxydants

Foire aux questions

Quelle est la différence entre antioxydant 1010 et antioxydant 168?

Dois-je utiliser un antioxydant 1010 ou Antioxydant 168?

Peut antioxydant 1010 et antioxydant 168 être utilisé ensemble?

Comment les antioxydants primaires et secondaires fonctionnent-ils ensemble?

Besoin d'aide pour choisir le bon système antioxydant?

Antioxydant 168 (SUNNOX® 168) — Antioxydant secondaire pour la stabilité du traitement

Informations sur le produit en un coup d'œil

Présentation du produit

QU'EST-CE QUE L'ANTIOXYDANT 168?

POURQUOI EST-IL UTILISÉ?

À QUELS DÉFIS LES ACHETEURS SERONT-ILS RENCONTRÉS SANS ELLE?

COMMENT ÇA AIDE LES FABRICANTS DE POLYMÈRES?

Spécifications techniques

INFORMATIONS CHIMIQUES

PROPRIÉTÉS

NOTES D'APPLICATION

Applications & Industries desservies

Polyoléfines (PE / PP)

Plastiques techniques (Pennsylvanie, ANIMAUX)

Film & Extrusion de fibres

Composition & Mélange maître

Emballages polymères pour contact alimentaire

Pourquoi antioxydant 168 Est utilisé avec un antioxydant 1010

Comparaison / Equivalents — Antioxydant 168 vs antioxydant 1010

Pourquoi source d'antioxydant 168 Chez SUNCHEM

Sélection de producteurs qualifiés

Qualité & Prise en charge des documents

Exporter & Coordination Logistique

Solutions d'approvisionnement flexibles

Gestion des approvisionnements à long terme

Processus de chaîne d'approvisionnement SUNCHEM

Documents & Qualité

Documents publics

Documents contrôlés

Emballage, Quantité minimale de commande & Logistique

Emballage

Quantité minimale de commande & Délai de mise en œuvre

Exporter & Expédition

Foire aux questions