注射温度对碳纤维增强聚醚醚酮的力学及摩擦磨损性能影响探究  

Effect of Injection Temperature on Mechanical and Friction and Wear Properties of Carbon Fiber Reinforced PEEK

作　　者：王骏[1] 陈义 李迎吉 卞达 赵永武 马赞兵 WANG Jun;CHEN Yi;LI Ying-ji;BIAN Da;ZHAO Yong-wu;MA Zan-bing(School of Mechanical Technology,Wuxi Institute of Technology,Wuxi 214121,China;Suzhou Nilfisk R&D 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]无锡职业技术学院机械技术学院,江苏无锡214121 [2]苏州力奇研发有限公司,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》2022年第7期49-52,共4页Plastics Science and Technology

基　　金：国家自然科学基金(51675232);江苏省自然科学基金(BK20190611);江苏省青蓝工程中青年学术带头人(苏教师函[2020]10号);江苏省青蓝工程优秀教学团队(苏教师函[2021]10号)项目资助。

摘　　要：以碳纤维为增强相,在不同注射温度条件下,制备PEEK/碳纤维复合材料,探究PEEK/碳纤维的拉伸性能,摩擦相关性能和样品表面磨痕的微观形貌。结果表明:随着注射温度的增加,PEEK复合材料的最高拉断力先增大后减小。注射温度分别为150、175、200℃时,PEEK复合材料的最高拉断力分别为7 276、7 409、7 224 N。随着注射温度的升高,样品表面的摩擦系数呈现先降低后升高的趋势。注射温度分别为150、175、200℃时,PEEK复合材料表面的摩擦系数分别为0.30、0.15、0.35。随着注射温度的升高,样品的耐磨性先升高后降低。注射温度分别为150、175、200℃时,PEEK复合材料表面的磨损率分别为3.44×10^(-6)、1.67×10^(-6)、4.86×10mm^(3)/(N·m)。PEEK注射成型时,调整注射成型温度,使其接近但不高于PEEK产品的玻璃化温度,有利于提高产品力学性能及摩擦性能。The PEEK/carbon fiber composites were prepared at different injection temperatures using carbon fiber as reinforcement. The tensile properties, friction-related properties and micro-morphology of worn surfaces of PEEK/carbon fiber composites were investigated. The results show that with the increase of injection temperature, the maximum tensile force of PEEK composite increases first and then decreases. When the injection temperatures are 150, 175 and 200 ℃, the maximum tensile forces of PEEK composites are 7 276, 7 409 and 7 224 N, respectively. With the increasing of injection temperature, the friction coefficient of the sample surface decreases first and then increases. When the injection temperatures are 150, 175 and 200 ℃, the friction coefficients of PEEK composite surface are 0.30, 0.15 and 0.35,respectively. With the increasing of injection temperature, the wear resistance of the sample first increases and then decreases. When the injection temperatures are 150, 175 and 200 ℃, the wear rates of PEEK composite surfaces are 3.44×10^(-6),1.67×10^(-6)and 4.86×10^(-6)mm^(3)/(N·m), respectively. During PEEK injection molding, with adjusting the injection molding temperature, the injection molding temperature close to but not higher than the glass transition temperature of PEEK products, which is conducive to improving the mechanical properties and friction properties of products.

关 键 词：聚醚醚酮 摩擦系数 耐磨性能 

分 类 号：TB332[一般工业技术—材料科学与工程]