通过高浓度腐蚀溶液加速腐蚀的方法,考察了Qtech-413粘弹性防护材料在海水、5％Na2SO4+5％NaCl溶液、1.5％H2SO4+1.5％HNO3溶液中的防腐蚀性能,研究了材料浸泡0,20,40,60和100 d时的力学性能变化,并通过ATR-FTIR光谱观察其内部结构变化.结果表明,在海水、5％Na2SO4+5％NaCl溶液、1.5％H2SO4+1.5％HNO3溶液中浸泡100 d后,拉伸强度分别降低了18.77％,20.43％和38.33％,断裂伸长率分别降低了15.64％,18.28％和11.39％,撕裂强度分别降低了12.70％,12.88％和10.62％,硬度变化较为稳定,且通过ATR-FTIR分析,其表面出现了少许降解变化,而其化学键和内部结构未受到破坏,仍具有良好性能.
The anti-corrosion performance of Qtech-413 viscoelastic protective materials in sea water,5％ Na2SO4+ 5％ NaCl solution,1.5％ H2SO4+ 1.5％ HNO3 solution for different time were characterized through tensile test and FTIR inspection.The measured results after immersion in the three solutions for 100 d show that the tensile strength for Qtech-413 decreasesby 18.77％,20.43％ and 38.33％,while the relevante longation at break decreases by 15.64％,18.28％ and 11.39％ in sea water,5％Na2SO4+ 5％ NaCl solution and 1.5％ H2SO4+ 1.5％ HNO3 solution respectively,however,its hardness changed little.FTIR inspection shows an appearance with features of little degradation on the Qtech-413 surface,but its chemical bonds and inherent structure did not damaged,which still shows good performance.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%