水溶性 PVA 薄膜
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 薄膜制造
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 […]
新型可生物降解包装材料
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 […]
聚乙烯醇的发展前景
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 […]
聚乙烯醇的使用及其凝胶化过程
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 […]
聚乙烯醇光学薄膜简介
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 […]
脱模薄膜
PVA Water Soluble Film for Mold Releasing As PVA water-soluble film is easily separated from hydrophobic plastics and is also easily released from various organic materials with a little polarity, it can be used as a release film for unsaturated polyester epoxy resin or other thermosetting resins . The PVA water-soluble film forms a barrier between the part […]
种子胶带薄膜
PVA Water Soluble Film for Agricultural Seed Tape PVA (PVOH) water-soluble seed tape packaging film is widely used in agricultural packaging. Seed tape realizes mechanized and semi-mechanized planting and reduces labor intensity. Seeds can also be wrapped equidistantly in strips, sheets or matrices with hydrophilic PVA films to transport the seeds into the soil. PVA water-soluble […]
