PVA 1788LM

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)

Storage

本製品は、乾燥した風通しの良い屋内で保管してください。パッケージが湿気にさらされたり、日光や雨にさらされないようにする。輸送の際は、汚染、湿気、雨を避けるため、清潔で覆いのある運搬具を使用すること。

交通機関： 

輸送には清潔な車両が必要。湿気、雨、日焼けを避けるよう注意すること。包装を破損しないよう取り扱いに注意すること。吸着劣化を防ぐため、揮発性の薬品との保管は厳禁。

よくあるご質問
Q: ポリビニルアルコールの特性指数とは？
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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