In situ growth of aminated silica on MXene nanosheets: A novel 0D/2D hybrid structure for multifunctional waterborne epoxy composite coatings

作者：He, Xiaoling; Wu, Jiongxin; Li, Sihao; Chen, Ying; Zhang, Li^*; Sheng, Xinxin^*

来源：PROGRESS IN ORGANIC COATINGS, 2022, 171: 107042.

DOI：10.1016/j.porgcoat.2022.107042

• Ti3C2Tx MXene
• Aminated silica
• One -pot
• Wear
• corrosion
• Waterborne epoxy coating

Multifunctional composites are becoming a major research trend in modern materials manufacturing. In this study, a superior stable dispersion of Ti3C2Tx MXene with in situ growth of aminated silica (FSiO2) was prepared. The nanohybrid (FSiO2-MX) was used for preparing anti-corrosive and wear-resistant waterborne epoxy (WEP) composite coatings. The results show that MXene was effectively coated by FSiO2 and was not easily exfoliated. In the tribological tests, the wear rate of the coating with reinforcement 0.4 wt% FSiO2-MX composites decreased from 19.81 x 10-2 to 3.93 x 10-2 mm3 center dot N-1 center dot m- 1. Moreover, the electrochemical impedance spectroscopy (EIS) results indicated that the |Z0.01 Hz| value for 4-FSM/WEP composite coating (1.33 x 109 omega center dot cm2) was more than two orders of magnitude higher than that of the pure WEP (5.40 x 106 omega center dot cm2). Thus, through the synergistic effects of zero-dimensional (0D) materials and two-dimensional (2D) materials, high-performance and multifunctional coatings can be prepared.

• 单位
  广东工业大学