期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Optimization of pore structure and wet tribological properties of paper-based friction materials using chemical foaming technology 被引量:1
1
作者 Chang LI Jie FEI +4 位作者 Enzhi ZHOU Rui LU Xiaohang CAI Yewei FU Hejun LI 《Friction》 SCIE EI CAS CSCD 2022年第9期1317-1334,共18页
Paper-based friction materials are porous materials that exhibit anisotropy;they exhibit random pore sizes and quantities during their preparation,thereby rendering the control of their pore structure difficult.Compos... Paper-based friction materials are porous materials that exhibit anisotropy;they exhibit random pore sizes and quantities during their preparation,thereby rendering the control of their pore structure difficult.Composites with different pore structures are obtained by introducing chemical foaming technology during their preparation to regulate their pore structure and investigate the effect of pore structure on the properties of paper-based friction materials.The results indicate that the skeleton density,total pore area,average pore diameter,and porosity of the materials increase after chemical foaming treatment,showing a more open pore structure.The addition of an organic chemical foaming agent improves the curing degree of the matrix significantly.Consequently,the thermal stability of the materials improves significantly,and the hardness and elastic modulus of the matrix increase by 73.7%and 49.4%,respectively.The dynamic friction coefficient increases and the wear rate is reduced considerably after optimizing the pore structure.The wear rate,in particular,decreases by 47.7%from 2.83×10^(−8) to 1.48×10^(−8)cm^(3)/J as the foaming agent content increases.Most importantly,this study provides an effective method to regulate the pore structure of wet friction materials,which is conducive to achieving the desired tribological properties. 展开更多
关键词 paper-based friction materials chemical foaming technology pore structure tribological properties
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部