Water-soluble film former
Dissolves in water and dries to strong, 기름- and solvent-resistant films.
PVA
폴리비닐알코올 (PVA) 중국 공급 업체
Polyvinyl alcohol (PVA) is a water-soluble polymer used for fibers and in large quantities in coatings, 접착제, 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)
- 모든 배송에 대한 로트 COA
- 시험용 샘플
- 평가판에 대한 기술 지원
제품개요 & 주요 이점
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.
귀하의 조건에 따라 지정됨
We quote against your hydrolysis, viscosity and volatile limits and send the batch COA for each lot.
기술 사양
| 매개변수 | 일반적인 값 |
|---|---|
| 제품명 | 폴리비닐알코올 |
| 동의어 | PVA; PVOH; poly(vinyl alcohol) |
| CAS 번호. | 9002-89-5 |
| 공식 | (C₂H₄O)N |
| 모습 | White to cream granules, powder or flakes |
| 등급 | Defined by degree of hydrolysis and viscosity |
Degree of hydrolysis, 점도 (4% 해결책), 휘발성 물질, ash and pH limits depend on the producer grade and are stated on the TDS and batch COA; 주문 한도는 견적서와 계약서에서 확인됩니다..
Applications by Industry
Where PVA is used, 공급을 전환하기 전에 확인해야 할 사항.
접착제, 코팅 & building
A binder in building adhesives, putty, coatings and paper glues.
시험 전 확인
- Hydrolysis and viscosity grade
- Dissolution conditions
- 가방 크기
Paper and textile processing
Used for paper surface sizing and coating and for textile warp sizing.
시험 전 확인
- Grade used now
- Viscosity
- 월별 거래량
Protective colloid
Stabilizes PVAc and VAE emulsions during polymerization.
시험 전 확인
- Partially or fully hydrolyzed
- Viscosity
- Sample for a pilot batch
섬유, PVB and film
A raw material for vinylon fiber, PVB resin and water-soluble film.
시험 전 확인
- Polymer route
- 청정
- Annual volume
선택 & 비교
Choosing the right PVA grade
| 귀하의 요구 사항 | 일반적으로 작동하는 것 |
|---|---|
| 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 |
| 기존 공급업체 교체 | 현재 TDS 또는 COA 보내기; 우리는 귀하가 승인한 매개변수에 대해 견적을 내립니다. |
포장 & 저장
포장
Tell us the bag size and pallet requirements you need; we confirm the packaging with the quotation.
저장
Keep bags closed in a dry store; PVA absorbs moisture.
첫 번째 이메일부터 승인된 공급까지
최종 용도의 이름을 지정하세요.
점착제, 종이, 직물, emulsion or fiber: hydrolysis and viscosity follow from it.
중요한 숫자를 비교하세요
Degree of hydrolysis, viscosity of a 4% 해결책, 휘발성 물질, ash and pH.
Test dissolution
Dissolve a sample in your own plant conditions; fully hydrolyzed grades need hot water.
재판, 그런 다음 사양을 잠급니다.
Run a sample in your own process and keep the approved lot COA as the reference for contract limits.
귀하의 요구 사항을 알려주십시오. 우리는 등급을 일치.
Tell us your application and the PVA grade you use now, 수량 및 대상 포트. 현재 사양을 추가하면 이에 대한 견적을 보내드립니다..
| 정보 | 예 |
|---|---|
| 애플리케이션 | 접착제, 종이, textile sizing, 유제, 섬유 |
| 필수사양 | Hydrolysis %, 점도 |
| 포장 | 가방 크기; 팔레트 |
| 수량 | 견본 / 평가판 주문 / 연간 볼륨 |
| 목적지 | 국가 및 항구 |
| 필요한 서류 | COA, SDS, TDS, REACH statement |
관련상품
폴리비닐알코올 (PVA) 자주하는 질문
What is PVA used for?
For fibers and in large quantities in coatings, 접착제, paper processing, textile sizing, 유화중합, 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, 점도, 휘발성 물질, ash and pH.
Is PVA dangerous goods?
아니요. It is not regulated as dangerous goods for transport; see the SDS for handling.
