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PVA 1788LM is a type of low methanol, medium viscosity and partially hydrolyzed polyvinyl alcohol. Low methanol content PVA products are widely used across industries due to their enhanced safety and eco-friendliness.
Applications:
Adhesives & Coatings: Ideal for eco-friendly glues (wood, paper, textiles) and water-based coatings, minimizing VOC emissions and indoor air pollution.
Food Packaging: Safe for biodegradable films and edible packaging, meeting strict food-contact safety standards.
Textiles: Low-toxicity sizing agents for yarns, ensuring compliance with international textile safety regulations.
Pharmaceuticals & Cosmetics: Used in drug coatings, capsules, and skincare products (e.g., gels, masks) for biocompatibility.
Construction Materials: Enhances concrete strength as an additive while reducing onsite chemical hazards.
Advanced Applications: Water-soluble supports for 3D printing, temporary films for electronics, and more.
Product Parameter (Specification)
| 항목 | 색인 |
| 가수분해(mole%) | 87.0 ~ 89.0 |
| 점도(mPa.s) | 21.0 ~ 26.0 |
| Methanol Content (wt%) | ≤0.6 |
| 휘발성(wt%) | ≤4.0 |
| 애쉬(wt%) | ≤0.4 |
| pH 값 | 5 ~ 7 |
| 순도(%) | ≥94 |
Storage
제품은 건조하고 통풍이 잘되는 실내에 보관해야 합니다. 패키지가 습하거나 햇빛이나 비에 노출되지 않도록 주의하세요. 오염, 습기 또는 비를 피하기 위해 운송 시 깨끗하고 덮개가 있는 운송 수단을 사용해야 합니다.
교통편:
운송을 위해 깨끗한 차량이 필요합니다. 습기, 비, 햇빛을 피하도록 주의해야 합니다. 포장이 손상되지 않도록 주의해서 취급하세요. 흡착력 저하를 방지하기 위해 휘발성 화학물질과 함께 보관하는 것은 엄격히 금지됩니다.
자주 묻는 질문
Q: 폴리비닐 알코올의 물성 지수는 무엇인가요?
A: Polyvinyl alcohol PVA is a solid substance, colorless and scentless in the shape of floccus, flake or granule. As it contains plenty of hydroxyl groups in its molecule, PVA is easily soluble in water as well as in organic compounds also containing hydroxyl such as glycerol, glycol, acetic acid, acetaldehyde and benzoic acid, except for general organic solvents in which it is insoluble. When heated up to 130-140℃, PVA gets yellow without essential changes in nature; when at 160℃ for a longer time, it gets darker; at 200℃, inter-molecular dehydration takes place with lower water solubility; at above 200℃, intra-molecular dehydration takes place; nearly at 300℃, PVA is decomposed into water, acetic acid, acetaldehyde and crotonaldehyde. The bulk densities of PVA vary depending on methods of alcoholysis: 0.2~0.27g/ml for high alkali alcoholysis and 0.42~0.52 g/ml for low alkali alcoholysis.
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