中国塑料 ›› 2024, Vol. 38 ›› Issue (2): 26-32.DOI: 10.19491/j.issn.1001-9278.2024.02.005

• 材料与性能 • 上一篇    下一篇

环氧树脂/碳纤维复合材料模压制品力学性能影响因素分析

赵川涛1,2(), 贾志欣2(), 刘立君2, 李继强2, 张臣臣1,2, 荣迪1,2, 高利珍2,3, 王少峰4   

  1. 1.浙江大学机械工程学院,杭州 310012
    2.浙大宁波理工学院,浙江 宁波 315100
    3.浙江理工大学,杭州 310018
    4.宁波益普乐模塑有限公司,浙江 宁波 315615
  • 收稿日期:2023-08-14 出版日期:2024-02-26 发布日期:2024-02-03
  • 通讯作者: 贾志欣(1970—),女,教授,从事复合材料成型工艺优化、模具表面仿生强化研究,jzx@nit.zju.edu.cn
    E-mail:chuantao_zhao@zju.edu.cn;jzx@nit.zju.edu.cn
  • 作者简介:赵川涛(1997—),男,硕士研究生,从事复合制件热压⁃注塑一体成型工艺研究,chuantao_zhao@zju.edu.cn
  • 基金资助:
    宁波市“科技创新2025”重大专项(2019B10053)

Analysis of influence factors on mechanical properties of epoxy/carbon fiber composite⁃molded products

ZHAO Chuantao1,2(), JIA Zhixin2(), LIU Lijun2, LI Jiqiang2, ZHANG Chenchen1,2, RONG Di1,2, GAO Lizhen2,3, WANG Shaofeng4   

  1. 1.School of Mechanical Engineering,Zhejiang University,Hangzhou 310012,China
    2.Ningbo Tech University,Ningbo 315100,China
    3.Zhejiang Sci?Tech University,Hangzhou 310018,China
    4.Ningbo City EPL Mould & Plastic Co,Ltd,Ningbo 315615,China
  • Received:2023-08-14 Online:2024-02-26 Published:2024-02-03
  • Contact: JIA Zhixin E-mail:chuantao_zhao@zju.edu.cn;jzx@nit.zju.edu.cn

摘要:

通过正交实验研究模压工艺参数对环氧树脂/碳纤维(EP/CF)片状模塑料SMC模压成型制品力学性能的影响,分析了各工艺参数对制品拉伸强度和弯曲强度的影响趋势。通过方差分析,得到工艺参数对于拉伸强度的影响大小为合模速度>模压温度>模压压力>保压时间,工艺参数对于弯曲强度的影响大小为合模速度>模压压力>模压温度>保压时间,同时得到了对拉伸强度和弯曲强度的显著性因素;研究了拉伸破坏模式及失效机理,采用K⁃均值方法并选取典型试样观察,发现环氧树脂与基体的结合程度是影响拉伸强度的原因。

关键词: 环氧树脂/碳纤维片状模塑料, 模压制品, 力学性能, 正交实验, 失效机理

Abstract:

The influence of molding process parameters on the mechanical properties of carbon fiber/epoxy sheet⁃molded products was studied through orthogonal experiments, and the influence trend of various process parameters on their tensile strength and flexural strength was analyzed. The influence of process parameters on the tensile strength was obtained by variance analysis in an increasing order of : clamping speed > molding temperature > molding pressure > holding time, and the influence of process parameters on bending strength was obtained in an increasing order of: clamping speed > molding pressure > molding temperature>holding time. Moreover, the significance factors affecting the tensile strength and flexural strength were also obtained. The tensile failure mode and failure mechanism were studied, and the typical samples were selected for observation using the K⁃mean method. The results indicated that the bonding degree between the matrix and epoxy resin affected the tensile strength of the molding products.

Key words: epoxy/carbon fiber sheet molding compound, molded product, mechanical property, orthogonal experiment, failure mechanism

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