Nitrile is formed by emulsion polymerization of butadiene and acrylonitrile. In order to improve the bonding strength and physical and mechanical properties of wet gel and vulcanizate, most nitrile latexes are modified by introducing third-party monomers such as carboxyl groups during copolymerization. Commonly used carboxyl monomers are acrylic acid, methacrylic acid and the like. Carboxylated nitrile latex can significantly improve the mechanical stability, oil resistance and aging resistance of latex.

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