Amphiphilic Janus nanoparticles of polyacrylamide-crosslinked polystyrene (PAM-cPS) were prepared using a one-step method involving emulsion interfacial polymerization and induced phase separation.These nanoparticles were used as fillers to improve the corrosion resistance,hydrophobicity,and wear resistance of waterborne epoxy resin (WEP) coatings.The effects of PAM-cPS filler content on the corrosion resistance,hydrophobicity,and mechanical properties of WEP coatings were investigated.The results showed that the addition of PAM-cPS fillers effectively enhanced the overall performance of the WEP coatings.The results demonstrated that adding PAM-cPS filler effectively enhanced the overall performance of WEP coatings.When the filler content was 3 wt.% of the WEP coating,no corrosion was observed after 75 days of neutral salt spray testing,the water contact angle of the coating increased from 73° to 97°,and the wear resistance of the coating improved compared to unfilled WEP coatings.Even after 30 cycles of external friction,the water contact angle of the coating remained at 80°.
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基金资助
国家自然科学基金(52203271);2024年“大学生创新创业训练计划项目”资助项目(X202410149117);辽宁省重点研发项目(2024JH2/102400046和2024JH2/102400048)
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