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Excelentes propriedades do PVA

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 ...

Fabricação de filmes PVA

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 ...

Álcool polivinílico de grau farmacêutico

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 ...

Aplicação do álcool polivinílico

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, ...

Breve introdução ao processo de produção de álcool polivinílico

The production of polyvinyl alcohol is divided into three ways according to the different raw materials: one is petroleum → ethylene → vinyl acetate → ...

A origem e o desenvolvimento do PVA

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 ...

Usos da hidroxipropilmetilcelulose

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, ...

Aplicações médicas do PVA

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 ...

Aplicação de álcool polivinílico em colírios

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 ...

O uso de PVA em revestimentos

Polyvinyl alcohol also has good uses in coatings. The polyvinyl alcohol aqueous solution is condensed with formaldehyde under the catalysis of hydrochloric acid to form ...

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