Vinylon fiber is a synthetic fiber produced with PVA as a raw material, including vinylon staple fiber, vinylon long fiber, high-strength high-modulus, medium-strength middle-mode, water-soluble fiber and other varieties. Among them, high-strength and high-modulus fibers have high strength and modulus,

Soluble PVA is soluble in water, the higher the water temperature, the greater the solubility, but it is almost insoluble in organic solvents. The solubility of PVA varies with the degree of alcoholysis and degree of polymerization. PVA with partial

PVA is the only vinyl polymer that can be used by bacteria as a carbon source and energy source. Under the action of bacteria and enzymes, it can degrade 75% in 46 days. It is a kind of biodegradable polymer

Pharmaceutical grade polyvinyl alcohol, different from chemical grade polyvinyl alcohol, it is a very safe polymer organic substance, non-toxic to the human body, no side effects, and has good biocompatibility, especially in medical treatment such as its water-based gel It

Polyvinyl alcohol is an important chemical raw material used in the manufacture of polyvinyl acetal, gasoline-resistant pipes and vinylon, fabric treatment agents, emulsifiers, paper coatings, adhesives, glues, etc. On May 30, 2019, a latest international study found that polyvinyl alcohol

The production of polyvinyl alcohol is divided into three ways according to the different raw materials: one is petroleum → ethylene → vinyl acetate → polyvinyl alcohol; the second is natural gas → acetylene → vinyl acetate → polyvinyl alcohol;

Polyvinyl alcohol was first developed by German chemists W.0. Herrmann and W.W. Hachnel in 1924, because it can carry out typical polyol chemical reactions and pass. Insoluble treatment makes it denatured and has different functional effects, resulting in a series

Used as thickener, dispersant, binder, exciphant, oil resistant coating, filler, emulsifier and stabilizer in textile industry. Also widely used in synthetic resin, petrochemical, ceramic, paper, leather, medicine, food and cosmetics and other industries. The main purpose 1, construction industry: as

PVA hydrogel has the characteristics of water content, elastic modulus, low friction coefficient, high mechanical strength, rich pore leakage network structure, and good biocompatibility similar to the natural tissues of the human body. Wide range of applications. It can be

Due to the development of science and technology, people are surrounded by electronic products all day long. People who often use these electronic products can easily cause eye discomfort and other symptoms. At this time, polyvinyl alcohol eye drops come