纺织学报 ›› 2022, Vol. 43 ›› Issue (04): 68-73.doi: 10.13475/j.fzxb.20201205106

• 纺织工程 • 上一篇    下一篇

硅烷偶联剂改性处理对玻璃纤维织物增强聚苯硫醚复合材料性能的影响

邵灵达, 黄锦波, 金肖克, 田伟, 祝成炎()   

  1. 浙江理工大学 先进纺织材料与制备技术教育部重点实验室, 浙江 杭州 310018
  • 收稿日期:2020-12-18 修回日期:2022-01-19 出版日期:2022-04-15 发布日期:2022-04-20
  • 通讯作者: 祝成炎
  • 作者简介:邵灵达(1995—),男,博士生。主要研究方向为纺织复合材料。
  • 基金资助:
    浙江理工大学研究生优秀学位论文培育基金项目(11150031272003)

Effect of silane coupling agent modification on properties of glass fiber fabric reinforced polyphenylene sulfide composites

SHAO Lingda, HUANG Jinbo, JIN Xiaoke, TIAN Wei, ZHU Chengyan()   

  1. Key Laboratory for Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
  • Received:2020-12-18 Revised:2022-01-19 Published:2022-04-15 Online:2022-04-20
  • Contact: ZHU Chengyan

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摘要：

针对聚苯硫醚存在韧性差的问题,通过热压成型工艺将玻璃纤维织物与聚苯硫醚树脂混合制备玻璃纤维增强聚苯硫醚复合材料。为获得较好的界面黏结性能,采用硅烷偶联剂KH560对玻璃纤维进行改性处理。借助扫描电子显微镜、摆锤冲击试验机、万能试验机等研究了不同质量分数硅烷偶联剂KH560处理对玻璃纤维表面形态及复合材料力学性能的影响。结果表明:当硅烷偶联剂KH560质量分数为2%时,玻璃纤维与聚苯硫醚基体结合得最好;经改性处理的玻璃纤维增强复合材料的拉伸强度、弯曲强度和冲击强度分别达到51.9 MPa、78 MPa和39.6 kJ/m2,相比于未处理前分别提升57.8%、51.8%和48.3%。

关键词: 玻璃纤维, 聚苯硫醚, 硅烷偶联剂, 复合材料, 改性, 力学性能

Abstract:

To solve the problem of poor toughness of polyphenylene sulfide, glass fiber reinforced polyphenylene sulfide composites were prepared by mixing glass fiber fabrics with polyphenylene sulfide through hot pressing. In order to obtain better interfacial bonding properties, silane coupling agent KH560 was used to modify the surface of glass fiber. By means of scanning electron microscope, pendulum impact tester and universal tester, the changes of surface morphology of glass fiber treated with different concentrations of silane coupling agent KH560 and its effect on the mechanical properties of the composites were studied. The results show that when the mass fraction of the silane coupling agent KH560 is 2%, the glass fiber and the polyphenylene sulfide matrix achieves the best bonding, and the tensile strength, flexural strength and impact strength of the modified glass fiber reinforced composite reach 51.9 MPa, 78 MPa and 39.6 kJ/m2 respectively, representing increases of 57.8%, 51.8% and 48.3% compared with untreated.

Key words: glass fiber, polyphenylene sulfide, silane coupling agent, composite, modification, mechanical property

中图分类号: 

  • TS15

图1

热压成型铺层图 1—上盖板; 2—聚酰亚胺薄膜; 3—预制件;4—聚酰亚胺薄膜; 5—垫片; 6—下模具。"

图2

硅烷偶联剂KH560处理对玻璃纤维织物形貌的影响"

图3

硅烷偶联剂KH560与玻璃纤维作用机制示意图"

表1

不同硅烷偶联剂KH560质量分数处理的织物质量增加率"

KH560质量分数 质量增加率
0
1 0.37
2 0.52
3 0.85
4 0.93

图4

不同硅烷偶联剂KH560质量分数处理织物的拉伸强度"

图5

玻璃纤维织物增强聚苯硫醚复合材料截面SEM照片"

图6

硅烷偶联剂与聚苯硫醚的作用机制"

图7

KH560质量分数对复合材料力学性能的影响"

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