Mechanical and Tribological Behavior of Epoxy/Silica Nanocomposites at the Micro/Nano Scale

被引：39
|
作者：
Wang, Zheng Zhi [1 ]
Gu, Ping [1 ]
Zhang, Zhong [2 ]
Gu, Lei [3 ]
Xu, You Zhong [3 ]
机构：
[1] Univ Sci & Technol China, Chinese Acad Sci, Key Lab Mat Mech Behav & Design, Dept Modern Mech, Hefei 230027, Anhui, Peoples R China
[2] Natl Ctr NanoSci & Technol, Beijing 100080, Peoples R China
[3] Chery Automobile Co Ltd, Wuhu 241009, Anhui, Peoples R China
来源：
TRIBOLOGY LETTERS | 2011年 / 42卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Nanotribology; Polymers; Indentation; Hardness; Friction mechanism; FILLED EPOXY COMPOSITES; ELASTIC-MODULUS; NANOINDENTATION; INDENTATION; WEAR; NANO-TIO2; PARTICLES; HARDNESS;
D O I：
10.1007/s11249-011-9762-1
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Micro/nano scale indentation and scratch tests were taken on the epoxy/SiO2 nanocomposites by using Hysitron TriboIndenter system. The influences of the filling amount of nano-SiO2 particles on the mechanical and tribological properties of the composites were studied. The indentation results show that the hardness and stiffness of the composites rise from about 0.1878 and 2.5134 GPa for the matrix to 0.2493 and 3.5117 GPa, respectively by the addition of nano-SiO2. The scratch tests indicate that the proper amount of silica particles can effectively reduce frictional coefficient and scratch depth, consequently improve the tribological properties of the epoxy matrix. Combined with the scratch surface morphologies, the improvements of the tribological behaviors are analyzed and the friction mechanisms of the epoxy/SiO2 nanocomposites are discussed.
引用
收藏
页码：185 / 191
页数：7
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