复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (2): 47-50.

• 基础研究 • 上一篇    下一篇

PBO纤维表面改性及其与树脂基体界面性能研究

李钟一1,2, 鞠苏3*, 石刚3, 罗迎社1,2*   

  1. 1.中南林业科技大学工程流变学湖南省重点实验室,长沙410004;
    2.中南林业科技大学土木工程与力学学院,长沙410004;
    3.国防科学技术大学航天科学与工程学院,长沙410073
  • 收稿日期:2014-07-11 出版日期:2015-02-28 发布日期:2021-09-14
  • 通讯作者: 鞠苏(1982-),男,博士,讲师,主要从事聚合物复合材料结构设计研究,suju-nudt@nudt.edu.cn。
    罗迎社(1954-),男,博士,教授,博导,主要从事先进材料流变力学性能研究,lys0258@sina.com。
  • 作者简介:李钟一(1990-),男,硕士研究生,主要从事先进材料流变力学性能研究。
  • 基金资助:
    国家自然科学基金项目(51103177);国家863项目(2012AA2308);湖南省普通高校教学改革研究项目(湘教通[2013]223号);中国学位与研究生教育学会研究课题(B2-2013Y08-119)

STUDY ON SURFACE MODIFICATION OF PBO FIBER AND ITS INTERFACIAL PROPERTIES WITH RESIN MATRIX

LI Zhong-yi1,2, JU Su3*, SHI Gang3, LUO Ying-she1,2*   

  1. 1. Hunan Provincial Key Labortary of Engineering Rheology, Central South University of Forestry and Technology, Changsha 410004, China;
    2. College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, China;
    3. College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2014-07-11 Online:2015-02-28 Published:2021-09-14

摘要: 分别采用化学处理、等离子体处理、偶联剂处理、γ射线辐照等单一改性方法和“辐照+等离子体”、“辐照+等离子体+偶联剂”等综合改性方法对PBO纤维进行表面处理,之后对各种不同方法改性后的纤维进行了单丝拉伸强度、与树脂的接触角和单丝拔出性能测试。结果表明,经综合改性方法处理后的PBO纤维综合性能最优,单丝拉伸强度保持率为85.1%,与水的接触角达到74.15°;与未经表面处理的纤维相比,其与树脂基体间的粘结强度提高了48.6%。

关键词: PBO纤维, 表面改性, 界面性能

Abstract: Two different surface treatment methods, single treatment process (such as “chemical treatment”, “plasma treatment”, “coupling treatment” and “radiation treatment”) and combined treatment processes (such as “radiation & plasma treatment” and “radiation & plasma & coupling treatment”) were used for the surface modification of PBO fiber, respectively. Then, the tensile strength, contact angles and interface bonding strength of the treated fibers were tested. The results show that, PBO fibers treated by the combined ways have better integrated properties: the residual tensile strength is about 85.1% of the untreated fiber; the contact angel between the treated fiber and water is 74.15°; the bonding strength between combined treated fiber with epoxy resin is 48.6% higher compared to the untreated fiber.

Key words: PBO fiber, surface modification, interfacial properties

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