Water-soluble film former
Dissolves in water and dries to strong, huile- and solvent-resistant films.
Alcool polyvinylique (PVA) is a water-soluble polymer used for fibers and in large quantities in coatings, adhésifs, paper processing, textile sizing and emulsion polymerization. SUNCHEM supplies PVA grades with a batch COA on every shipment.
PVA is made by hydrolyzing polyvinyl acetate. It dissolves in water to form a stable colloid and forms strong, oil-resistant films, with properties between plastics and rubber. Besides fiber (vinylon), it is used in coatings and building adhesives, paper sizing and coating, textile warp sizing, as a protective colloid in emulsion polymerization (PVAc and VAE), and as a raw material for PVB and water-soluble film.
Grades are defined by degree of hydrolysis and viscosity (degree of polymerization). Tell us the grade you use now so we quote the equivalent.
Dissolves in water and dries to strong, huile- and solvent-resistant films.
Binds pigments and fibers and stabilizes emulsions as a protective colloid.
We quote against your hydrolysis, viscosity and volatile limits and send the batch COA for each lot.
| Paramètre | Valeur typique |
|---|---|
| Nom du produit | Alcool polyvinylique |
| Synonymes | PVA; PVOH; poly(alcool vinylique) |
| Numéro CAS. | 9002-89-5 |
| Formule | (C₂H₄O)n |
| Apparence | White to cream granules, powder or flakes |
| Notes | Defined by degree of hydrolysis and viscosity |
Degree of hydrolysis, viscosité (4% la solution), volatiles, ash and pH limits depend on the producer grade and are stated on the TDS and batch COA; les limites de votre commande sont confirmées dans le devis et le contrat.
Where PVA is used, et que confirmer avant de changer d'approvisionnement.
A binder in building adhesives, putty, coatings and paper glues.
Used for paper surface sizing and coating and for textile warp sizing.
Stabilizes PVAc and VAE emulsions during polymerization.
A raw material for vinylon fiber, PVB resin and water-soluble film.
| Votre exigence | Ce qui fonctionne habituellement |
|---|---|
| Building adhesives and putty | Fully hydrolyzed grade; viscosity to suit the formulation |
| Emulsion polymerization | Partially hydrolyzed grade as protective colloid |
| Paper and textile sizing | Match the grade and viscosity you use now |
| Remplacer un fournisseur existant | Envoyez votre TDS ou COA actuel; nous citons en fonction des paramètres que vous approuvez |
Tell us the bag size and pallet requirements you need; nous confirmons l'emballage avec le devis.
Conserver les sacs fermés dans un magasin sec; PVA absorbs moisture.
Adhésif, papier, textile, emulsion or fiber: hydrolysis and viscosity follow from it.
Degree of hydrolysis, viscosity of a 4% la solution, volatiles, ash and pH.
Dissolve a sample in your own plant conditions; fully hydrolyzed grades need hot water.
Analysez un échantillon dans votre propre processus et conservez le COA du lot approuvé comme référence pour les limites du contrat..
Tell us your application and the PVA grade you use now, la quantité et le port de destination. Ajoutez vos spécifications actuelles et nous établirons un devis en fonction de celles-ci.
| Information | Exemple |
|---|---|
| Application | Adhésifs, papier, textile sizing, émulsions, fibre |
| Spécification requise | Hydrolysis %, viscosité |
| Emballage | Taille du sac; palettes |
| Quantité | Échantillon / commande à l'essai / volume annuel |
| Destination | Pays et port |
| Documents nécessaires | COA, FDS, DT, Déclaration REACH |
For aluminum electrolytic capacitor use, with release limits for chloride, sulfate et fer.
Voir le produit →For fibers and in large quantities in coatings, adhésifs, paper processing, textile sizing, polymérisation en émulsion, PVB and water-soluble film.
By degree of hydrolysis (partially or fully hydrolyzed) and viscosity, which reflects the degree of polymerization.
Degree of hydrolysis, viscosité, volatiles, ash and pH.
Non. It is not regulated as dangerous goods for transport; see the SDS for handling.