Ti3C2二维纳米材料作为典型的MXene近年来成为研究热点,本研究采用缩水甘油醚氧丙基三甲氧基硅烷(GPS)和多巴胺单体分别对Ti3C2进行改性,并命名为G-Ti3C2和D-Ti3C2。XRD图和TEM图等结果表明,改性并没有破坏Ti3C2的晶体结构和形貌;红外光谱出现的特征峰证实了改性基团的成功接枝。将改性前后的纳米片以低含量添加到环氧树脂涂层后,电化学阻抗和盐雾试验说明G-Ti3C2和D-Ti3C2与Ti3C2相比更有利于改善环氧涂料的防腐性能。
As a typical two-dimensional nanomaterial of MXene, Ti3C2 has become research hotspot in recent years. In this study, Ti3C2 was modified by (3-glycidyloxypropyl) trimethoxysilane (GPS) and dopamine monomer, respectively, and named as G-Ti3C2 and D-Ti3C2. XRD and TEM results showed that the crystal structure and morphology of Ti3C2 nanosheets were not damaged after modification. The characteristic peaks of FTIR spectra confirmed the successful grafting of modified groups. The nanosheets before and after modification were added into epoxy resin coatings with low content. EIS and salt spray test results illustrated that G-Ti3C2 and D-Ti3C2 were more beneficial than Ti3C2 in improving the anticorrosion properties of epoxy resin coatings.