不同玻璃纤维含量对PTFE增强PEEK复合材料摩擦学性能的影响  

Effect of Different Glass Fiber Content on Tribological Properties of PTFE Reinforced PEEK Composites

作　　者：陈义 张国新[1] 卞达 马赞兵 CHEN Yi;ZHANG Guo-xin;BIAN Da;MA Zan-bing(Wuxi Vocational College of Science and Technology,Wuxi 214028,China;Suzhou Jiangjin Automation Technology Co.,Ltd.,Suzhou 215000,China;School of Mechanical Engineering Jiangnan University,Wuxi 214122,China;Zhejiang Changsheng Plastic Bearing Technology Co.,Ltd.,Jiaxing 314100,China)

机构地区：[1]无锡科技职业学院,江苏无锡214028 [2]苏州江锦自动化科技有限公司,江苏苏州215000 [3]江南大学机械工程学院,江苏无锡214122 [4]浙江长盛塑料轴承技术有限公司,浙江嘉兴314100

出　　处：《塑料科技》2023年第2期11-14,共4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);江苏省工程研究中心(苏发改高技发[2022]1103号)。

摘　　要：以聚四氟乙烯(PTFE)为增强相,加入不同含量的玻璃纤维(GF),通过注塑成型方式,制备PEEK/PTFE复合材料,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,利用白光仪对磨痕数据和三维形貌进行观测,使用扫描电子显微镜对磨痕进行观测与分析。结果表明:当GF含量越高,复合材料最大应力越高,应力增大的斜率越明显。当GF含量增至30%,复合材料的最大应力提高至183 MPa。当GF含量逐渐升高,复合材料表面的摩擦系数降低。当GF含量为30%,复合材料的摩擦系数降至0.08。当GF含量为0、15%、30%,复合材料磨损率分别为3.59×10-6、2.30×10^(-6)、1.78×10^(-6)mm^(3)/(N·m)。GF含量越高,复合材料的硬度越高,耐磨损性能越好。PTFE/PEEK composite were prepared by injection molding with polytetrafluoroethylene(PTFE) as the reinforcing phase and different content of glass fiber(GF). The tensile test was carried out by mechanical testing machine,and the surface friction test was carried out by friction testing machine. The data and three-dimensional morphology of the wear mark were observed by white light meter, and the wear mark was observed and analyzed by scanning electron microscope. The results show that the higher the GF content is, the higher the maximum stress of the composite is and the slope of the stress increase is more obvious. When the GF content increases to 30%, the maximum stress of the composite increases to 183 MPa. The higher the GF content is, the lower the friction coefficient of the composite surface is. When the GF content is 30%, the friction coefficient of the composite decreases to 0.08. When the GF content is 0,15% and 30%, the wear rates of the composites are 3.59×10^(-6), 2.30×10^(-6) and 1.78×10^(-6)mm^(3)/(N·m), respectively. The higher the GF content,the higher the hardness and the better the wear resistance of the composites.

关 键 词：聚醚醚酮 玻璃纤维 磨损率 耐磨性 转移膜 

分 类 号：TB332[一般工业技术—材料科学与工程]