Modified polyvinyl alcohol fiber
Polyvinyl alcohol fiber can be blended with other fibers, and then dissolved after textile processing to obtain high-grade spun yarn textiles, and can also be made into non-twisted yarn or non-weft blanket. It can also be used in papermaking as a binder to improve the strength and toughness of paper. In addition, it can also […]
Green and environmentally friendly degradable PVA
The interpenetrating network structure polymer plastic alloy formed by blending modified PVA and modified starch is biodegradable. Films suitable for food packaging, agricultural water-soluble films, containers and disposable consumer products are often produced. The waste can be swallowed by microorganisms in moist soil and degrade into carbon dioxide and water, which is non-polluting to the […]
Water-soluble PVA film
Water-soluble PVA film is a new type of plastic product that has emerged internationally. It uses the film-forming properties of PVA, water and biodegradability, and can be completely degraded into CO2 and H2O. It is a veritable green, high-tech and environmentally friendly packaging. Material. In Europe, America and Japan, water-soluble PVA film has been widely […]
PVA film manufacturing
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 material and can be produced on a large scale by non-petroleum routes. , The price […]
New biodegradable packaging materials
In recent years, the development of new biodegradable packaging materials has received extensive attention. Renewable natural polymers have been used to evaluate the biodegradability of end-use products based on polyvinyl alcohol. Polyvinyl alcohol materials are widely used in biodegradable synthetic polymers due to their biodegradability under various microbial conditions. Polyvinyl alcohol is used in a […]
Development prospects of polyvinyl alcohol
Polyvinyl alcohol (PVA) is a high-molecular polymer, made from vinyl acetate (VAC) through polymerization and alcoholysis. It has good adhesion, film-forming properties, oil resistance, and colloidal protection. Pollution-free and degradable characteristics rarely seen in polymer materials. Compared with other chemical products, PVA and its derivative products have a very broad development space, and new uses […]
The use of polyvinyl alcohol and its gelation process
Poly (vinyl alcohol) is a kind of water-soluble polymer obtained by hydrolysis of polyvinyl acetate instead of monomer polymerization. It is soluble in glycerin at 120-150 ℃, but becomes jelly at room temperature. In the dissolving step of polyvinyl alcohol, the material should be added into room temperature water under stirring, and then heated to […]
Introduction of polyvinyl alcohol optical film
PVA optical film, also known as polyvinyl alcohol optical film, is the core material of polarizer. PVA optical film is a polarizing film, which is made of PVA resin, plasticizer, antioxidant and other trace additives dissolved in water, and then cast and dried by an extruder. PVA optical film is the basic material for the […]