Improved Tribological Properties of Epoxy Cement Reinforced with Impact-Resistant Core-Shell Structured Polymer Nanoparticles

被引:1
作者
Qiu, Ling [1 ]
Wang, Yuan [2 ]
Kong, Xiaolan [2 ]
Li, Yanan [2 ]
Cao, Shiyu [2 ]
Hu, Wenbin [2 ]
Zhang, Gangqiang [3 ]
Wang, Chenchen [2 ]
机构
[1] Gansu Civil Engn Res Inst Co Ltd, Lanzhou 730000, Peoples R China
[2] Shanghai Inst Technol, Collaborat Innovat Ctr Fragrance Flavour & Cosmet, Sch Chem & Environm Engn, Shanghai 201418, Peoples R China
[3] Qingdao Univ, Inst Funct Text & Adv Mat, State Key Lab Biofibers & Ecotext, Coll Text & Clothing,Collaborat Innovat Ctr Marine, Qingdao 266071, Peoples R China
关键词
core-shell polymer nanoparticles; epoxy cement; tribological properties; impact resistance; MECHANICAL-PROPERTIES;
D O I
10.3390/lubricants12080267
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Traditional cement epoxy pavements suffer from inherent limitations such as terrible tribological properties, poor wear resistance, and weak impact resistance, presenting significant challenges to ensure the safety and continuous operation of urban roads. As a solution, high-performance cement epoxy composite grouting materials have emerged as the preferred option for engineering construction and road maintenance. In this study, CSP/epoxy cement (CSEC) composite materials were prepared by emulsion polymerization. The thermal properties of the materials were characterized, revealing that CSP enhances the thermal properties of epoxy cement (EC) to a certain extent. Furthermore, the frictional properties of CSEC composite materials and pure epoxy cement under different normal loads were investigated. The results indicated that the CSEC composite material exhibited a slight increase in friction coefficient and a notable decrease in wear rate compared to pure epoxy cement (EC). Specifically, the wear rate of CSEC decreased by 14.4% at a load of 20 N, highlighting the enhanced frictional performance facilitated by CSP. Mechanistic analysis attributed the improvement to the unique core-shell structure of CSP, which imparted higher impact resistance and eliminated alleviate residual stresses at the friction interface. This structural advantage further enhanced the wear resistance of materials, making it a promising choice for improving the durability and safety of urban road surfaces.
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页数:12
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