High-temperature color
Keeps color and melt flow stable at high processing temperatures.
SUNNOX® 9228 is a high-performance diphosphite secondary antioxidant. It gives excellent color and melt stability at high processing temperatures with very good hydrolysis resistance and low volatility.
Antioxydant 9228 (bis(2,4-dicumylphényle) pentaerythritol diphosphite) is a solid white powder with a molecular weight of about 853 and a melting point of at least 225 °C. Its high phosphorus efficiency and hydrolysis resistance make it a step up from 168 for demanding processing such as thin-wall molding, film, fiber and engineering plastics, used together with a phenolic primary.
Keeps color and melt flow stable at high processing temperatures.
Stays active and free-flowing in humid storage, unlike many diphosphites.
High phosphorus efficiency often allows lower loading than standard phosphites.
| Paramètre | Valeur typique |
|---|---|
| Nom du produit | Antioxydant 9228 |
| Marque | SUNNOX® 9228 |
| Numéro CAS. | 154862-43-8 |
| Nom chimique | Bis(2,4-dicumylphényle) pentaerythritol diphosphite |
| Formule moléculaire | C53H58O6P2 |
| Masse moléculaire | 853.0 |
| Apparence | Poudre blanche |
| Point de fusion | ≥225 °C |
| Matière volatile | ≤0,5% |
Spécification typique. Chaque envoi est fourni avec un COA de lot; les limites applicables à votre commande sont confirmées dans le devis et le contrat.
Pick an application to see how 9228 is normally used and what to confirm before your trial.
Processing stabilizer for PP and PE film, fiber and thin-wall molding, with a phenolic antioxidant.
Color and melt stability at the high temperatures these polymers need.
Used with an amide phenolic such as 1098 for processing color in nylon.
| Votre exigence | Ce qui fonctionne habituellement |
|---|---|
| Stabilité de la couleur et de l'écoulement à l'état fondu pendant l'extrusion ou le moulage | Phosphite antioxydant secondaire (168) avec un primaire phénolique |
| Vieillissement thermique à long terme en service | Primaire phénolique à haut poids moléculaire (1010), souvent avec un thioester (DLTDP / DSTDP) |
| Couche mince, fibre, mélange à bas point de fusion | Phénolique à bas point de fusion (1076) pour une dispersion facile |
| Traitement répété / contenu recyclé | Relever la part de phosphite dans le mélange et vérifier le jaunissement après chaque passage |
| Stockage humide ou long transit | Phosphite résistant à l'hydrolyse tel que 168; garder les sacs scellés |
| Articles à contact alimentaire | Ask for the grade-specific food-contact statement before trials |
| Remplacement d'une note existante | Envoyez votre TDS ou COA actuel; we match on the parameters you approve |
Faites glisser ou faites défiler horizontalement pour voir toutes les colonnes →
| Produit | Taper | Mol. poids | Point de fusion | Emploi principal |
|---|---|---|---|---|
| SUNNOX® 9228 | Diphosphite · secondary | 853.0 | ≥225 °C | High-temperature processing, hydrolysis resistance |
| SUNNOX® 168 | Phosphite · secondaire | 646.9 | 183–187 °C | Stabilité du traitement, Couleur |
| SUNNOX® PEP-36 | Diphosphite · secondary | 632.7 | ≥235 °C | Color and melt stability |
| SUNNOX® 1010 | Phénol encombré · primaire | 1177.6 | 110–125 °C | Protection thermique à long terme |
| SUNNOX® 1098 | Hindered phenol · amide | 636.9 | 156–161 °C | Polyamide and fiber stabilization |
Définissez les niveaux dans votre propre essai. Le bon niveau dépend de la résine, résidu de catalyseur, température de traitement et durée de vie. Les antioxydants primaires et secondaires effectuent des tâches différentes et ne sont pas interchangeables.
25 kg net bags or cartons with a PE inner liner. Palletized.
Keep sealed in a cool, sec, ventilated place away from heat and direct sun. See the SDS for full handling details.
Regular grades are usually in stock. For large volumes, lead time is confirmed in the quotation. We quote FOB and CIF.
Yellowing or melt-flow change during processing points to the phosphite share; embrittlement or cracking after months in service points to the phenolic and thioester share. Note recycled content and the number of extrusion passes.
Most polyolefin packages start from a phenolic primary plus a phosphite secondary, then adjust. Send your current package and we suggest a starting blend for the trial instead of changing several variables at once.
For powders: essai, melting range, volatiles and light transmittance at 425/500 nm (a direct read on color). Ask for the same parameters on our COA that appear on your incoming-inspection sheet.
Agree packaging, monthly volume, destination port and required documents up front. A matching CAS number alone does not qualify a new source; run your trial and keep the approved lot COA as the reference.
Start with your polymer, quantité et destination. Add your current grade or specification and we will quote against it.
| Information | Exemple |
|---|---|
| Polymer / Material | PP, PE, abdos, composé, mélange maître |
| Application | Injection molding, extrusion, film, fibre |
| Current additive | Grade or supplier you use today |
| Spécification requise | Your TDS, COA or key limits |
| Quantité | Commande à l'essai / mensuel / volume annuel |
| Emballage | Standard 25 kg or specific requirement |
| Destination | Pays et port |
| Documents nécessaires | COA, FDS, ATTEINDRE, food-contact statement |
Hydrolysis-resistant phosphite secondary antioxidant for color and melt-flow protection during processing.
Voir le produit →Pentaerythritol diphosphite for color and melt stability in polyolefins and styrenics.
Voir le produit →High-MW hindered phenolic primary antioxidant for long-term thermal protection with low volatility.
Voir le produit →Amide-type phenolic antioxidant built for polyamides and fiber, with good color during processing.
Voir le produit →When processing temperature, multiple passes or color requirements push 168 to its limit, or when you need lower total loading.
Non. It is a white powder with a melting point of at least 225 °C.
Oui. Like all phosphites it protects mainly during processing; use it with a phenolic primary for long-term protection.
Oui. Tell us the polymer, the test you plan to run and the quantity you need. Samples ship with a COA so you can compare the lot against your current material.
Send us the agreed specification and the COA showing the difference (parameter, unité et méthode de test). We check it with the production batch record before you accept the material, and replace or re-test where the lot is out of specification.