Water-soluble film former
Dissolves in water and dries to strong, масло- and solvent-resistant films.
Поливиниловый спирт (ПВА) is a water-soluble polymer used for fibers and in large quantities in coatings, клеи, 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 (степень полимеризации). Tell us the grade you use now so we quote the equivalent.
Dissolves in water and dries to strong, масло- 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.
| Параметр | Типичное значение |
|---|---|
| Название продукта | Поливиниловый спирт |
| Синонимы | ПВА; PVOH; поли(виниловый спирт) |
| Номер КАС. | 9002-89-5 |
| Формула | (C₂H₄O)н |
| вид | White to cream granules, powder or flakes |
| Оценки | Defined by degree of hydrolysis and viscosity |
Degree of hydrolysis, вязкость (4% решение), летучие вещества, ash and pH limits depend on the producer grade and are stated on the TDS and batch COA; лимиты вашего заказа подтверждены в предложении и договоре.
Where PVA is used, и что необходимо подтвердить перед переключением источника питания.
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.
| Ваше требование | Что обычно работает |
|---|---|
| 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 |
| Замена существующего поставщика | Отправьте текущий TDS или COA; мы цитируем параметры, которые вы утверждаете |
Tell us the bag size and pallet requirements you need; мы подтверждаем упаковку с предложением.
Храните сумки закрытыми в сухом магазине.; PVA absorbs moisture.
Клей, бумага, текстиль, emulsion or fiber: hydrolysis and viscosity follow from it.
Degree of hydrolysis, viscosity of a 4% решение, летучие вещества, ash and pH.
Dissolve a sample in your own plant conditions; fully hydrolyzed grades need hot water.
Запустите образец в своем собственном процессе и сохраните утвержденный сертификат подлинности партии в качестве образца для ограничений по контракту..
Tell us your application and the PVA grade you use now, количество и порт назначения. Добавьте свою текущую спецификацию, и мы сделаем предложение по ней.
| Информация | Пример |
|---|---|
| Приложение | Клеи, бумага, textile sizing, эмульсии, волокно |
| Требуемая спецификация | Hydrolysis %, вязкость |
| Упаковка | Размер сумки; поддоны |
| Количество | Образец / пробный заказ / годовой объем |
| Место назначения | Страна и порт |
| Необходимые документы | сертификат подлинности, паспорт безопасности, ТДС, Заявление REACH |
For fibers and in large quantities in coatings, клеи, paper processing, textile sizing, эмульсионная полимеризация, PVB and water-soluble film.
By degree of hydrolysis (partially or fully hydrolyzed) and viscosity, which reflects the degree of polymerization.
Degree of hydrolysis, вязкость, летучие вещества, ash and pH.
Нет. It is not regulated as dangerous goods for transport; see the SDS for handling.