典型非金属材料海洋环境适应性技术研究

目的研究海洋环境对典型非金属腐蚀的影响。方法首先编制加速腐蚀试验环境谱进行腐蚀试验,以及自然暴晒试验,最后对试验进行数据分析。结果丁晴橡胶、硅橡胶、有机玻璃及密封胶在经过热冲击、盐雾、紫外暴晒、紫外-周浸和万宁站暴晒试验之后,其断裂强度、屈服强度和断裂伸长率等力学性能虽然都有一定程度降低,但是其力学性能的保持率仍然达到85%。这表明丁晴橡胶、硅橡胶、有机玻璃及密封胶总体上是耐蚀的。结论丁晴橡胶和密封胶的耐腐蚀性强于硅橡胶和有机玻璃。

Technical Research on Ocean Environmental Adaptability of Typical Nonmetal Materials

Objective To study influences of ocean environment on corrosion of typical nonmetal materials. Methods A environment spectrum for accelerated corrosion test was drawled up to carry out corrosion test, atmospheric exposure test and data analysis. Results Mechanical properties such as breaking strength, yield strength and elongation at break of nitrile rubber buna, silicon rubber, organic glass and sealant decreased to a certain extent after tests of thermal shock, salt fog, ultraviolet exposure, ultraviolet-immersion and exposure in Wanning Station, but their mechanical properties were still kept at 85%. This means that nitrile rubber buna, silicon rubber, organic glass and sealant were corrosion resistant. Conclusion The corrosion resistance of nitrile rubber buna and sealant is better than that of silicon rubber and organic glass.