ABSTRACT

Multi-layered Graphene oxide (MLGO) were modified with Talc to prepare a hydrophobic corrosion resistance agent for epoxy through three different methods. The humidity and salt spray tests after 360 and 500 h, respectively, showed the higher performance of the sample prepared by the reflux method compared to the heater-stirrer and microwave method. The results of the FT-IR showed that in the presence of Talc, some of the oxygenated functional groups on MLGO were decreased. Also, the comparison of the experimental tests of the coatings containing 1%wt of MLGO/Talc with the different ratios of MLGO and Talc showed the best results for MLGO/Talc (1:5). The impedance modulus of MLGO–Talc, MLGO and Talc epoxy coatings at the end of two months of immersion were 1.45 E+07, 1.38 E+06 and 6.72E+05 Ω cm², respectively. So by the reflux method, a hydrophobic MLGO/Talc structure was obtained that was confirmed by the contact angle test.

摘要

用滑石粉改性多层氧化石墨烯（MLGO），通过三种不同的方法制备环氧树脂的疏水性耐腐蚀剂。分别在 360 和 500 小时后的湿度和盐雾测试表明，与加热搅拌器和微波法相比，回流法制备的样品具有更高的性能。FT-IR 的结果表明，在滑石粉的存在下，MLGO 上的一些氧化官能团减少。此外，对含有 1%wt MLGO/滑石粉的涂层与不同比例的 MLGO 和滑石粉进行的实验测试的比较表明，MLGO/滑石粉 (1:5) 的结果最好。浸入两个月结束时，MLGO–Talc、MLGO 和滑石环氧树脂涂层的阻抗模量分别为 1.45 E+07、1.38 E+06 和 6.72E+05 Ω cm ²， 分别。因此，通过回流方法，获得了疏水性 MLGO/滑石结构，并通过接触角测试得到证实。