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中国腐蚀与防护学报  2016, Vol. 36 Issue (4): 357-362    DOI: 10.11902/1005.4537.2015.173
  研究报告 本期目录 | 过刊浏览 |
玻璃钢复合材料耐海水腐蚀性能及抗Cl-渗透寿命预测
聂亚楠1,沈浩2,谷坤鹏1,王成启1()
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
Seawater Corrosion Resistance and Service Life Prediction of Glass Fiber Reinforced Plastic Composites
Yanan NIE1,Hao SHEN2,Kunpeng GU1,Chengqi WANG1()
1. CCCC Shanghai Third Harbor Engineering Science & Technology Research Institute Co., Ltd., Shanghai 200032, China
2. Shanghai HongYun New Construction Materials Co., Ltd., Shanghai 201500, China
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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。

关键词 玻璃钢加速老化抗Cl-渗透寿命预测    
Abstract

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 decreasing trend of the pH value of the solution, the mass variation rate, and the bending strength retention 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 examined by SEM. The concrete sample wrapped with GFRP composites was used to examine the time when Cl- 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.

Key wordsglass fiber reinforced plastic    accelerated aging    resistance to Cl- penetration    life prediction
    
基金资助:中国交通建设股份有限公司科技开发项目 (2012-ZJKJ-13)资助

引用本文:

聂亚楠,沈浩,谷坤鹏,王成启. 玻璃钢复合材料耐海水腐蚀性能及抗Cl-渗透寿命预测[J]. 中国腐蚀与防护学报, 2016, 36(4): 357-362.
Yanan NIE, Hao SHEN, Kunpeng GU, Chengqi WANG. Seawater Corrosion Resistance and Service Life Prediction of Glass Fiber Reinforced Plastic Composites. Journal of Chinese Society for Corrosion and protection, 2016, 36(4): 357-362.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2015.173      或      https://www.jcscp.org/CN/Y2016/V36/I4/357

图1  质量变化率与加速老化时间的关系
图2  弯曲强度保留率与加速老化时间的关系
图3  189不饱和聚酯玻璃钢加速老化前后断面SEM像
图4  MFE-2环氧乙烯基酯玻璃钢加速老化前后断面SEM像
图5  自然海洋环境下玻璃钢的弯曲强度保留率与老化时间的关系[13]
图6  加速老化条件下不饱和聚酯玻璃钢弯曲强度保留率与老化时间的关系
Immersion timed 189 GFRP wrapped MFE-2 GFRP wrapped
30 0 0
60 0 0
90 0.0015 0
120 0.0025 0
150 0.0037 0
180 0.0069 0
210 0.0097 0.0020
表1  不同老化时间渗入混凝土表层Cl-含量
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