When it comes to Vinyl Resin, it is well known that it is widely recognized as a better hydrolysis and corrosion resistant Resin ! Vinyl resin is called standard bisphenol A Epoxy vinyl resin, which is A vinyl resin synthesized by the reaction of methacrylic acid and bisphenol A Epoxy Resin. The following professional vinyl resin suppliers for you to introduce the characteristics of vinyl resin in detail.
In the structural formula of Vinyl Ester Resin, the ester bond is unstable and easily hydrolyzed under the catalysis of Lewis acid and base. In alkaline environment, the hydrolysis and Na+ form water-soluble metal salt, and this reaction is irreversible, but in acid environment, the hydrolysis is reversible.
The unstable ester bond hydrolysis in vinyl resin has the following characteristics: the ester bond hydrolysis rate increases with the increase of temperature; The greater the content of ester bond, the greater the corresponding moisture permeability, and the less resistant to hydrolysis, especially alkali corrosion and thermal hydrolysis. If the concentration of ester bond is halved, the hydrolysis resistance time can be extended about 20 times. normal
Vinyl resin contains less ester bond, per mole than chemical resistant polyester (bisphenol A- fumaric acid UPR) 35-50% less, making its alkali resistance improved.
The hydrolysis resistance of vinyl resin is related to resin, fiber and filler. C-type Glass Fiber has poor alkaline resistance and organic fiber without ester bond is commonly used as the reinforcement material of corrosion resistant barrier layer of alkali resistant glass steel products. Compared with glass fiber, organic fiber has better chemical corrosion resistance, especially has its unique advantages in water resistance, cyanofluoric acid resistance and alkaline resistance. The vinyl resin is synthesized by methacrylic acid, the methyl group of ester bond edge can play a protective role, improve the hydrolysis resistance.
Jiangyin Wanqian Chemicals Co., Ltd. is a comprehensive enterprise engaged in the production, sales and technical support of raw and auxiliary materials in the field of composite materials. The main vinyl resin, Unsaturated Polyester Resin, epoxy resin, glass fiber, Accelerator, Curing Agent and other kinds of composite products. Welcome to inquire and order!
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