摘要
以碳纤维(CF)为增强相,添加不同含量的纳米氮化硼(h-BN),通过注塑成型的方式,制备了聚醚醚酮/聚四氟乙烯(PEEK/PTFE)复合材料样条,使用力学试验机进行拉伸试验,利用摩擦试验机进行表面摩擦试验,并利用白光仪对磨痕数据和三维形貌进行观测,使用SEM对磨痕进行观测与分析。结果表明:随着h-BN含量的增加,PEEK/PTFE复合材料样条最大应力先增加后减小;当h-BN含量分别为3%、6%时,PEEK/PTFE复合材料样条的最大应力分别为174 MPa、165 MPa。与PEEK/PTFE相比,单独添加CF的样品摩擦系数降至0.23。同时添加CF、h-BN时,复合材料样条的摩擦系数均降低;h-BN含量分别为3%、6%时,复合材料样条的摩擦系数分别为0.06、0.09。随着h-BN含量的升高,PEEK/PTFE/CF/h-BN复合材料的磨损率先降低后升高。h-BN含量为3%时,复合材料样条的磨损率最低。
Polyetheretherketone/polytetrafluoroethylene(PEEK/PTFE) composite spline was prepared by injection molding with carbon fiber(CF) as reinforcing phase and nano boron nitride(h-BN) with different contents.Tensile test was carried out by mechanical testing machine,surface friction test was carried out by friction testing machine,wear mark data and three-dimensional morphology were observed by a white light instrument,and wear mark was observed and analyzed by SEM.The results show that with the increase of h-BN content,the maximum spline stress of PEEK/PTFE composites first increases and then decreases;When h-BN content is 3% and 6%,the maximum stress of PEEK/PTFE composite spline is 174 MPa and 165 MPa,respectively.Compared with PEEK/PTFE,the friction coefficient of the sample with CF alone decreased to 0.23.When CF and h-BN are added at the same time,the friction coefficient of composite spline decreases.When the content of h-BN is 3% and 6%,the friction coefficients of composite splines are 0.06 and 0.09,respectively.With the increase of h-BN content,the wear of PEEK/PTFE/CF/h-BN composites first decreased and then increased.When the content of h-BN is 3%,the wear rate of composite spline is the lowest.
作者
李迎吉
陈义
卞达
苗盈
吕洁
王理硕
马赞兵
LI Ying-ji;CHEN Yi;BIAN Da;MIAO Ying;LÜJie;WANG Li-shuo;MA Zan-bing(School of Mechanical Technology,Wuxi Institute of Technology,Wuxi 214121,China;School of Intelligent Manufacturing,Wuxi Professional College of Science and Technology,Wuxi 214028,China;School of Mechanical Engineering,Jiangnan University,Wuxi 214122,China;Zhejiang Changsheng Plastic Bearing Technology Co.,Ltd.,Jiaxing 314100,China)
出处
《塑料科技》
CAS
北大核心
2023年第11期5-9,共5页
Plastics Science and Technology
基金
国家自然科学基金青年基金(52205196)
江苏省自然科学基金(BK20190611)。
关键词
聚醚醚酮
碳纤维
纳米氮化硼
磨损率
耐磨性
Polyetheretherketone
Carbon fiber
Nanometer boron nitride
Wear rate
Wear resistance
