Preparation and Research of a Water Vapor Barrier Coating with Good Hydrolysis Resistance

Zhao Zhengbai (Oechsler Plastic Production(Taicang)Co.,Ltd.,Suzhou Jiangsu,215400,China) Yuan Congcong (Suzhou Cybrid Application and Technology Co.,Ltd.,Suzhou Jiangsu,215200,China)

Abstract :The humid environment is not conducive to the storage and use of many daily life supplies and industrial products. The vapor barrier coating can protect them against the erosion of water vapor in a humid environment. In this paper,a new water vapor barrier coating has been prepared by combining ionized unsaturated polyester resin and hydrophobic mica powders. The prepared coating has good water vapor barrier ability,it can make the WVTR of 125 µm PET reducing 58% ;and it has good hydrolysis resistance,the water vapor barrier ability and adhesion remain unchanged after accelerated aging(PCT 48 h). The process optimization for the preparation of the water vapor barrier coating has been discussed

Preparation and Research of a Water Vapor Barrier Coating with Good Hydrolysis Resistance

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