Friction and Wear Behaviors of Two Kinds of Hydroxyl-Terminated Polydimethylsiloxane-Modified PU/EP IPN Composites Under Dry Sliding Conditions

被引：6
作者：
Chen, Shoubing [1 ,2 ]
Wang, Qihua [1 ]
Wang, Tingmei [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
来源：
TRIBOLOGY LETTERS | 2011年 / 43卷 / 03期
基金：
美国国家科学基金会;
关键词：
Polymers; Self-lubricating composites; Rolling-contact fatigue; EPOXY COMPOSITES; RESIN NANOCOMPOSITES; THERMAL-PROPERTIES; POLYMER NETWORKS; CARBON-FIBER; POLYURETHANE;
D O I：
10.1007/s11249-011-9816-4
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, a systematic investigation on the tribological properties of two kinds of hydroxyl-terminated polydimethylsiloxane (HTPDMS)-modified castor oil-based polyurethane/epoxy resin (PU/EP) interpenetrating polymer network composites (IPN) was carried out through a pin-on-disk arrangement under dry sliding conditions. Experimental results revealed that the incorporation of HTPDMS can significantly improve the friction and wear properties of PU/EP IPN. Further, it was found that both the friction coefficient and wear loss decreased with increasing content of HTPDMS. The worn surface of the PU/EP IPN matrix and the modified composites were analyzed using scanning electron microscope and 3D noncontact surface-mapping profiler. The as-prepared and worn surfaces of the HTPDMS-modified PU/EP IPN were also investigated using X-ray photoelectron spectroscopy. The mechanisms for the improvement of tribological properties were discussed.
引用
收藏
页码：319 / 327
页数：9
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