复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (4): 61-65.DOI: 10.19936/j.cnki.2096-8000.20210428.009

• 应用研究 • 上一篇    下一篇

乳化剂对耐高温热塑性水分散乳液上浆剂性能的影响

李佳乐1,3, 李楠1,2, 胡方圆1,2,3, 蹇锡高1,2,3*, 刘程1,2, 王锦艳1,2   

  1. 1.大连理工大学 化工学院,大连116024;
    2.大连理工大学 辽宁省高性能树脂工程技术研究中心,大连116011;
    3.大连理工大学 材料科学与工程学院,大连116024
  • 收稿日期:2020-08-20 出版日期:2021-04-28 发布日期:2021-04-30
  • 通讯作者: 蹇锡高(1946-),男,中国工程院院士,教授,博士生导师,研究方向为高性能工程塑料及其复合材料加工应用技术,jian4616@dlut.edu.cn。
  • 作者简介:李佳乐(1996-),女,硕士研究生,研究方向为热塑性复合材料。
  • 基金资助:
    国家重点研发计划(2018YFB1107500;2017YFB0307600);国家自然科学基金(91860204;U1837205;U1663226)

EFFECT OF EMULSIFIER ON PROPERTIES OF THERMOPLASTIC WATER DISPERSIBLE EMULSION SIZING AGENT

LI Jia-le1,3, LI Nan1,2, HU Fang-yuan1,2,3, JIAN Xi-gao1,2,3*, LIU Cheng1,2, WANG Jin-yan1,2   

  1. 1. School of Chemical Engineering, Dalian University of Technology, Dalian 116024,China;
    2. Liaoning Province High Performance Resin Engineering Technology Research Center, Dalian 116011, China;
    3. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
  • Received:2020-08-20 Online:2021-04-28 Published:2021-04-30

摘要: 在本项工作中,选用不同的表面活性剂,通过乳液/溶剂蒸发法制备杂萘联苯共聚芳醚砜(PPBES)水分散乳液上浆剂,以改善高性能热塑性复合材料中碳纤维与PPBES树脂之间的界面相容性。为获得最佳上浆效果,研究了PPBES浓度、表面活性剂种类及浓度对上浆剂平均粒径的影响;通过扫描电子显微镜(SEM)对上浆剂的成膜能力进行了分析,并研究了上浆处理对碳纤维性能的影响,结果表明:上浆后碳纤维制备的CFs/PPBES复合材料弯曲强度高达1781 MPa,相对于未上浆CFs制备的复合材料弯曲强度提高了15.6%,界面剪切强度提升了5.0%。

关键词: 碳纤维, 水分散乳液上浆剂, 热塑性复合材料, 界面作用

Abstract: In this work, different surfactants are used to prepare phthalene co-polyaryl ether sulfone (PPBES) water-dispersible emulsion sizing agent by the emulsion/solution evaporation method to improve the interface compatibility between the carbon fiber and PPBES resin in high-performance thermoplastic composites. In order to obtain the best sizing effect, the effects of PPBES concentration, emulsifier type and concentration on the average concentration of sizing agent were studied. The film forming ability of the sizing agent was analyzed by scanning electron microscope (SEM), and the effect of sizing treatment on the properties of carbon fiber was studied. The results showed that the flexural strength of CFs/PPBES composites prepared by carbon fiber after sizing is up to 1781 MPa, which is 15.6% higher than that of composites prepared by non-sizing CFs, and the interface shear strength is increased by 5.0%.

Key words: carbon fiber, water dispersion emulsion sizing agent, thermoplastic composites, interface interaction

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