摘要
以使用碳纤维为增强体,聚苯硫醚为树脂基体的碳纤维增强聚苯硫醚(Carbon Fiber Polyphenylene Sulfide,CF/PPS)热塑性复合材料为研究对象,对其电阻焊工艺进行了研究,获得了最佳工艺参数,并使用硅烷偶联剂对加热元件(304不锈钢金属网)进行改性。在探索最佳工艺参数时,使用了田口试验方法,设计了三因子三水平的正交试验,得到了在CF/PPS电阻焊试验最佳参数(电流为42 A,压力为2.0 MPa,时间为10 s)下的最大单搭接剪切强度(Lap Shear Strength,LSS)为24.5 MPa。运用硅烷偶联剂对加热元件进行表面改性,提高了聚苯硫醚与金属网之间的黏附性。与加热元件未进行任何处理的焊接接头相比,使用硅烷偶联剂处理加热元件的焊接接头搭接剪切强度为31.1 MPa,提高了27%。
This article focuses on carbon fiber resin based materials,namely carbon fiber polyphenylene sulfide(CF/PPS) thermoplastic composites with carbon fiber as reinforcement and polyphenylene sulfide as resin matrix.The resistance welding process is studied,and the optimal process parameters are explored.The heating element(metal mesh) is modified using silane coupling agent.When exploring the optimal process parameters,Taguchi experimental method was used and orthogonal experiments with three factors and three levels were designed to obtain the optimal parameters for CF/PPS resistance welding experiment(current 42 A,pressure 2.0 MPa,time 10 s),and the maximum lap shear strength(LSS) was 24.5 MPa.In resistance welding experiments,the heating element generates heat due to the Joule effect after being energized,melting the resin in the welding area,and cooling and solidifying under pressure to generate a welded joint.The surface modification of heating elements using silane coupling agents has improved the adhesion between polyphenylene sulfide and metal mesh.Compared with the welded joints of untreated heating elements,the LSS of the welded joints of heating elements treated with silane coupling agent was 31.1 MPa,increased by 27%.
作者
王涣翔
赵刚
徐剑
WANG Huanxiang;ZHAO Gang;XU Jian(School of Chemical Engineering,Dalian University of Technology,Dalian 116081,China)
出处
《复合材料科学与工程》
CAS
北大核心
2024年第5期76-84,91,共10页
Composites Science and Engineering
基金
国家自然科学基金面上项目(52075526)
国家自然科学基金(91860204)
宁波市“3315计划”(2017A-28-C)。
