Amino-functionalized Ti3C2Tx with anti-corrosive/wear function for waterborne epoxy coating. (1st October 2020)

• Record Type: Journal Article
• Authors: Yan, Han; Cai, Meng; Li, Wen; Fan, Xiaoqiang; Zhu, Minhao
• Is Part Of: Journal of materials science & technology. Volume 54(2020)
• Page Start: 144
• Page End: 159
• Publication Date: 2020-10-01
• Subjects: Ti3C2Tx -- Amino functionalization -- Waterborne epoxy coating -- Corrosion -- Wear; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2020.05.002
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract: Two-dimensional Ti3 C2 T x flakes have great application potential in various areas due to their optical, electronic, electrochemical and mechanical properties, but their anti-corrosion and wear-resistance performance were not well understood. The difficulties in achieving good dispersity and interface interaction of inorganic additives in organic coatings hinder the incorporation of Ti3 C2 T x into the epoxy coating. Here, few-layered Ti3 C2 T x sheets with amino-functionalization were prepared, and as reinforced-additives were added into the waterborne epoxy coating. Anti-corrosion and tribological properties of as-prepared composite coatings were investigated in detail. The results reveal that the composite coating with 0.5 wt.% amino-functionalized Ti3 C2 T x sheets shows excellent corrosion protection (the lowest frequency impedance was 3.12 × 10 9 Ω cm 2 ) and wear resistance (wear rate was reduced by 72.74%). The greatly improving performance of composite coatings mainly depends on: (a) good dispersity and compatibility of amino-functionalized Ti3 C2 T x in organic matrix, (b) high adhesion strength between coating and metal substrate and (c) the intrinsic properties of Ti3 C2 T x sheets. The work provides a good path for applications of MXene as multifunctional additives.