玻璃钢复合材料耐海水腐蚀性能及抗Cl^-渗透寿命预测  

Seawater Corrosion Resistance and Service Life Prediction of Glass Fiber Reinforced Plastic Composites

作　　者：聂亚楠[1] 沈浩 谷坤鹏[1] 王成启[1] 

机构地区：[1]中交上海三航科学研究院有限公司,上海200032 [2]上海宏韵新型建材有限公司,上海201500

出　　处：《中国腐蚀与防护学报》2016年第4期357-362,共6页Journal of Chinese Society For Corrosion and Protection

基　　金：中国交通建设股份有限公司科技开发项目(2012-ZJKJ-13)资助

摘　　要：采用70℃、3.5%(质量分数)的海盐溶液对不饱和聚酯玻璃钢及环氧乙烯基酯玻璃钢进行加速老化实验,研究了玻璃钢的耐海水腐蚀性能,并对2 mm厚的玻璃钢防护层的抗Cl^-渗透寿命进行了预测。结果表明:不饱和聚酯玻璃钢在海水中容易发生水解腐蚀,其抗Cl^-渗透寿命约为30 a;而环氧乙烯基酯玻璃钢的抗Cl^-渗透寿命约为70 a,具有更好的耐海水腐蚀性能。The anti-corrosion performance of glass fiber reinforced plastic （GFRP） composites was evaluated by immersion test in 3.5% （mass fraction） sea salt solutions at 70℃ in terms of the de- creasing trend of the pH value of the solution, the mass variation rate, and the bending strength re- tention rate of GFRP composites with time. While the surface morphology of the fractured surface of the composites, especially the glass fiber/resin interface before and after corrosion was exam- ined by SEM. The concrete sample wrapped with GFRP composites was used to examine the time when C1- penetrated through the GFRP layer. And, the life of resistance to Cl- penetration of 2 mm thick GFRP composites was predicted. Results showed that the life of resistance to Cl- penetration for the unsaturated ester based GFRP composite was about 30 a; while the epoxy vinyl ester based GFRP composite was about 70 a.

关 键 词：玻璃钢 加速老化 抗Cl-渗透 寿命预测 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]