Industry News

Introduction of PVA Fiber

2021-09-22
The main characteristics of PVA Fiber are high strength, high modulus, low elongation, abrasion resistance, acid and alkali resistance, good weather resistance, good affinity and bonding with cement, gypsum and other substrates, and it is non-toxic, pollution-free, and non-toxic. It damages the human skin and is harmless to the human body. It is one of the new generation of high-tech green building materials. Polyvinyl alcohol, the raw material for the production of Weilun fiber, is a water-soluble high polymer with properties between plastics and rubbers, and it has a wide range of uses. my country's polyvinyl alcohol production capacity and output rank first in the world, followed by Japan, the United Kingdom and North Korea.

Synthetic fiber made by spinning polyvinyl alcohol as raw material. The polyvinyl formal fiber obtained by treating this fiber with formaldehyde is called vinylon in China and vinylon in the world. Compared with low-molecular-weight polyvinyl alcohol as the raw material, the fiber made by spinning is water-soluble and is called water-soluble polyvinyl alcohol fiber. The general polyvinyl alcohol fiber does not have the necessary hot water resistance and has little practical application value. Polyvinyl formal fiber has the characteristics of softness and warmth, especially the moisture absorption rate (up to 5%) is relatively high among the varieties of synthetic fibers, so it is called synthetic cotton; but its heat resistance is poor, and its softening point is only 120°C.