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Friction and wear behavior of the hybrid PTFE/cotton fabric composites filled with TiO 2 nanoparticles and modified TiO 2 nanoparticles
Author(s) -
Zhang HuiJuan,
Zhang ZhaoZhu,
Guo Fang,
Liu WeiMin
Publication year - 2009
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.21228
Subject(s) - materials science , composite material , nanoparticle , polytetrafluoroethylene , grafting , polyoxymethylene , economies of agglomeration , friction coefficient , polymer , chemical engineering , nanotechnology , engineering
A chemical grafting method was applied to modify TiO 2 nanoparticles through covalently introducing glycidoxypropyltrimethoxy silicane (KH560) followed by polyoxymethylene onto the particles to overcome the disadvantages generated by the agglomeration of nanoparticles. TiO 2 nanoparticles unmodified and modified were introduced into hybrid polytetrafluoroethylene (PTFE)/cotton fabric composites. Friction and wear test demonstrated that TiO 2 nanoparticles unmodified and modified can significantly increase the wear resistance of hybrid PTFE/cotton fabric composites but cannot reduce the friction coefficient. Fabric composites filled with grafted TiO 2 nanoparticles exhibited a lower wear rate due to the disintegration of agglomeration and the improvement of interfacial adhesion between filler/matrix. POLYM. ENG. SCI., 2009. © 2008 Society of Plastics Engineers