Study on Properties of PTFE Composites Filled with Nano-nitride
Hongyan Gu, Lu Qin
Abstract
Hongyan Gu, Lu Qin
Abstract
The mechanical,friction and wear properties of polytetrafluoroethylene(PTFE) composites filled with nanometer AlN,Si3N4,and TiN were studied.It was found that the nano-particle increased the hardness and wear resistance of PTFE but decreased the tensile and impact strengths of the composites.The tensile fracture surface was observed using scanning electron microscope(SEM),which showed that nano-TiN was finely dispersed in the PTFE matrix,however,nano-AlN and Si3N4 could not be well dispersed.
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The mechanical,friction and wear properties of polytetrafluoroethylene(PTFE) composites filled with nanometer AlN,Si3N4,and TiN were studied.It was found that the nano-particle increased the hardness and wear resistance of PTFE but decreased the tensile and impact strengths of the composites.The tensile fracture surface was observed using scanning electron microscope(SEM),which showed that nano-TiN was finely dispersed in the PTFE matrix,however,nano-AlN and Si3N4 could not be well dispersed.
Key concepts: Materials science, Composite material, Polytetrafluoroethylene, Scanning electron microscope, Ultimate tensile strength, Nanometre, Nano-, Tin