Mechanical Properties and Tribological Behaviour of Polyurethane Elastomer Reinforced with CaCO3 Nanoparticles

被引：14
|
作者：
Zhao, Zhengping [1 ]
Guo, Qiang [1 ]
Qian, Junzhi [1 ]
Pan, Guoliang [1 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 201800, Peoples R China
来源：
POLYMERS & POLYMER COMPOSITES | 2012年 / 20卷 / 07期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
NANOCOMPOSITES; COMPOSITES; FRICTION; FILLERS; WEAR;
D O I：
10.1177/096739111202000701
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In this work polyurethane (PU) elastomers based on poly(propylene glycol), diisocyanate and 2,2-Bis (hydroxymethyl)propionic acid were synthesized. CaCO3 nanoparticles were modified through esterification to increase their interactions with the PU matrix. A series of nanocomposites from polyurethane incorporated with various low concentrations of calcium carbonate were obtained. The effects of nanoparticles content on mechanical properties and the tribological behaviour of the PU composites filled with CaCO3 nanoparticles were investigated. Investigations of the worn surfaces showed that the fillers of CaCO3 nanoparticles were able to enhance the adhesion of the transfer films to the surface of counterpart ring, so they significantly reduced the wear rate of the PU matrix.
引用
收藏
页码：575 / 580
页数：6
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