摘要
针对甲烷氯化物酸池耐腐蚀材料进行研究,阐述了高分子材料的腐蚀类型、腐蚀机理和影响腐蚀因素等。分别将间苯二胺和N,N-二甲基苯胺固化的环氧树脂、压块烧结后的聚苯硫醚、聚四氟乙烯试样放入50℃甲烷氯化物和盐酸混合溶液中浸泡10天,测定每天试样质量的变化。采用静态实验法测定材料的溶胀性能,利用红外扫描检测溶胀后的试样中成分的变化。结果表明,随时间的延长3种材料的质量都有不同程度的增加,环氧树脂的质量增加最多。在甲烷氯化物和盐酸混合溶液中聚苯硫醚和聚四氟乙烯的耐腐蚀性能优异。
The methane chloride acid pools corrosion-resistant materials was studied and polymer types of cor- rosion, corrosion mechanism, the corrosion factors and so on, were elaborated. With m-phenylenediamine and N, N- dimethylaniline cured epoxy, compact after sintering PPS, PTFE respectively and then placed these samples in 50℃ methane chloride and hydrochloric acid solution soaking for 10 days; besides, the weight of the samples was regularly measured every day. In addition, the static test method was also used to determine the swelling properties of materials and the change of samples after being swelled was detected by infrared scanning. The results showed that with the increasing of time, the quality of the three materials was increased at different degrees, and the largest increasing in quality was epoxy resin. PPS and PTFE had excellent corrosion resistance in mixed solution of methane chloride and hydrochloric acid.
基金
国家自然科学基金(51072125)
纳米材料特色学科建设项目(2014TS11)
