Water-soluble film former
Dissolves in water and dries to strong, aceite- and solvent-resistant films.
PVA
Alcohol polivinílico (PVA) Supplier from China
Polyvinyl alcohol (PVA) is a water-soluble polymer used for fibers and in large quantities in coatings, adhesivos, paper processing, textile sizing and emulsion polymerization. SUNCHEM supplies PVA grades with a batch COA on every shipment.
CAS 9002-89-5 · (C₂H₄O)n · Poly(vinyl alcohol)
- Lote COA con cada envío
- Muestras para tus ensayos
- Soporte técnico para su prueba
Descripción general del producto & beneficios clave
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.
Binder and colloid
Binds pigments and fibers and stabilizes emulsions as a protective colloid.
Specified on your terms
We quote against your hydrolysis, viscosity and volatile limits and send the batch COA for each lot.
Especificaciones técnicas
| Parámetro | Valor típico |
|---|---|
| Nombre del producto | Alcohol polivinílico |
| Sinónimos | PVA; PVOH; escuela politécnica(vinyl alcohol) |
| CAS No. | 9002-89-5 |
| Fórmula | (C₂H₄O)norte |
| Apariencia | White to cream granules, powder or flakes |
| Grados | Defined by degree of hydrolysis and viscosity |
Degree of hydrolysis, viscosidad (4% solución), volátiles, ash and pH limits depend on the producer grade and are stated on the TDS and batch COA; the limits for your order are confirmed in the quotation and contract.
Applications by Industry
Where PVA is used, and what to confirm before you switch supply.
Adhesivos, revestimientos & building
A binder in building adhesives, putty, coatings and paper glues.
Verificar antes del juicio
- Hydrolysis and viscosity grade
- Dissolution conditions
- Bag size
Paper and textile processing
Used for paper surface sizing and coating and for textile warp sizing.
Verificar antes del juicio
- Grade used now
- Viscosidad
- Monthly volume
Protective colloid
Stabilizes PVAc and VAE emulsions during polymerization.
Verificar antes del juicio
- Partially or fully hydrolyzed
- Viscosidad
- Sample for a pilot batch
Fibras, PVB and film
A raw material for vinylon fiber, PVB resin and water-soluble film.
Verificar antes del juicio
- Polymer route
- Pureza
- Annual volume
Selección & comparación
Choosing the right PVA grade
| Su requisito | Lo que normalmente funciona |
|---|---|
| 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 |
| Reemplazo de un proveedor existente | Envíe su TDS o COA actual; Cotizamos contra los parámetros que usted apruebe. |
embalaje & almacenamiento
embalaje
Tell us the bag size and pallet requirements you need; Confirmamos el embalaje con la cotización..
Almacenamiento
Keep bags closed in a dry store; PVA absorbs moisture.
Desde el primer correo electrónico hasta el suministro aprobado
Nombra el uso final
Adhesivo, papel, textil, emulsion or fiber: hydrolysis and viscosity follow from it.
Compara los números que importan
Degree of hydrolysis, viscosity of a 4% solución, volátiles, ash and pH.
Test dissolution
Dissolve a sample in your own plant conditions; fully hydrolyzed grades need hot water.
Ensayo, luego bloquea la especificación
Ejecute una muestra en su propio proceso y mantenga el COA del lote aprobado como referencia para los límites del contrato..
Cuéntanos tu requerimiento. Coincidimos con el grado.
Tell us your application and the PVA grade you use now, the quantity and the destination port. Add your current specification and we will quote against it.
| Información | Ejemplo |
|---|---|
| Solicitud | Adhesivos, papel, textile sizing, emulsiones, fibra |
| Especificación requerida | Hydrolysis %, viscosidad |
| embalaje | Bag size; pallets |
| Cantidad | Muestra / trial order / volumen anual |
| Destino | País y puerto |
| Documentos necesarios | COA, Ficha de datos de seguridad (MSDS), SDT, REACH statement |
Productos relacionados
Alcohol polivinílico (PVA) Preguntas más frecuentes
What is PVA used for?
For fibers and in large quantities in coatings, adhesivos, paper processing, textile sizing, polimerización en emulsión, PVB and water-soluble film.
How are PVA grades defined?
By degree of hydrolysis (partially or fully hydrolyzed) and viscosity, which reflects the degree of polymerization.
Which parameters should I compare between offers?
Degree of hydrolysis, viscosidad, volátiles, ash and pH.
Is PVA dangerous goods?
No. It is not regulated as dangerous goods for transport; see the SDS for handling.
