中国塑料 ›› 2024, Vol. 38 ›› Issue (8): 26-32.DOI: 10.19491/j.issn.1001-9278.2024.08.005

• 材料与性能 • 上一篇    下一篇

单宁酸表面改性PE⁃UHMW纤维及其界面性能研究

陈天欢1(), 严成2, 蒋干兵2, 郭帅3, 颜甜甜2, 钱坤1, 俞科静2()   

  1. 1.江南大学纺织科学与工程学院,江苏 无锡 214122
    2.连云港神特新材料有限公司,江苏 连云港 222000
    3.连云港纤维新材料研究院有限公司,江苏 连云港 222000
  • 收稿日期:2023-12-04 出版日期:2024-08-26 发布日期:2024-08-19
  • 通讯作者: 俞科静(1982—),女,教授,从事安全防护复合材料的结构设计、制备与应用研究,yukejing@jiangnan.edu.cn
    E-mail:chentianh02@163.com;yukejing@jiangnan.edu.cn
  • 作者简介:陈天欢(1999—),女,硕士研究生,从事高性能纤维生产技术及表面改性研究,chentianh02@163.com
  • 基金资助:
    连云港市重大技术攻关?揭榜挂帅项目(CGJBGS2104)

Study on surface modification of PE⁃UHMW fiber by tannic acid and its interfacial property

CHEN Tianhuan1(), YAN Cheng2, JIANG Ganbing2, GUO Shuai3, YAN Tiantian2, QIAN Kun1, YU Kejing2()   

  1. 1.School of Textile Science and Engineering,Jiangnan University,Wuxi 214122,China
    2.Lianyungang Shente High?tech Materials Co,Ltd,Lianyungang 222000,China
    3.Lianyungang Fiber New Material Research Institute Co,Ltd,Lianyungang 222000,China
  • Received:2023-12-04 Online:2024-08-26 Published:2024-08-19
  • Contact: YU Kejing E-mail:chentianh02@163.com;yukejing@jiangnan.edu.cn

摘要:

使用单宁酸(TA)对超高分子量聚乙烯(PE⁃UHMW)纤维进行表面改性,研究了金属离子种类及反应时间对单宁酸与金属离子(TA⁃[M])改性对PE⁃UHMW纤维性能的影响,并在TA⁃[M]改性溶液中引入聚乙烯亚胺(PEI),研究了PEI分子量对TA⁃[M]⁃PEI改性PE⁃UHMW纤维性能影响,以及PEI对TA涂层稳定性的影响。结果表明,TA涂层成功涂覆在PE⁃UHMW纤维表面,在纤维表面引入了羟基官能团。TA⁃Fe改性12 h后纤维与环氧树脂(EP)的界面剪切强度较改性前提高了102.03 %;与聚氨酯树脂(PU)界面剪切强度提升了97.78 %。TA⁃Fe改性12 h后纤维与PU的界面粘接强度提高了44.35 %;与EP的界面粘接强度提高了58.50 %。氨基化合物PEI能够改善TA涂层的稳定性,超声清洗实验后PE@TA⁃Fe⁃PEI600比PE@TA⁃Fe界面黏结强度下降少。

关键词: 超高分子量聚乙烯纤维, 单宁酸, 表面改性, 界面增强

Abstract:

In this paper, tannic acid (TA) was used to modify the surface of ultra⁃high molecular weight polyethylene (PE⁃UHMW) fiber. The effects of metal ion type and reaction time on the properties of PE⁃UHMW fiber modified by tannic acid and metal ion (TA⁃[M]) were studied. Polyethyleneimine (PEI) was introduced into TA⁃[M] modified solution. The effect of PEI molecular weight on the properties of TA⁃[M]⁃PEI modified PE⁃UHMW fiber and the effect of PEI on the stability of TA coating were studied. The results indicated that the TA coating was successfully coated on the surface of PE⁃UHMW fiber, and the phenolic hydroxyl functional group was introduced on the surface of the fiber. The interfacial shear strength between fiber and epoxy resin (EP) increased by 102.03 % after TA⁃Fe modification for 12 h. The interfacial shear strength with polyurethane resin (PU) increased by 97.78 %. The interfacial bonding strength between fiber and PU increased by 44.35 % after TA⁃Fe modification for 12 h. The interfacial bonding strength with EP increased by 58.50 %. The amino compound PEI can improve the stability of TA coating. After ultrasonic cleaning experiment, the interfacial bonding strength of PE@TA⁃Fe⁃PEI600 decreased less than that of PE@TA⁃Fe.

Key words: ultra?high molecular weight polyethylene fiber, tannic acid, surface modification, interface enhancement

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