Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (04): 68-73.doi: 10.13475/j.fzxb.20201205106

• Textile Engineering • Previous Articles     Next Articles

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 Online:2022-04-15 Published:2022-04-20
  • Contact: ZHU Chengyan E-mail:cyzhu@zstu.edu.cn

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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

CLC Number: 

  • TS15

Fig.1

Hot pressing diagram"

Fig.2

Effect of silane coupling agent KH560 treatment on morphology of glass fiber fabric"

Fig.3

Mechanism schematic of reaction between silane coupling agent KH560 and glass fiber fabric. (a)Hydrolysis of silane coupling agent; (b)Polycondensation to form oligomeric siloxane;(c)Water lose of oligosiloxane and glass fiber fabric to form covalent bond"

Tab.1

Fabric weight gain rate treated with different mass fraction of silane coupling agent KH560%"

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

Fig.4

Tensile strength of fabric treated with different mass fraction of silane coupling agent KH560"

Fig.5

SEM cross-sectional images of glass fiber fabric reinforced polyphenylene sulfide composite"

Fig.6

Mechanism of reaction between silane coupling agent and polyphenylene sulfide"

Fig.7

Effect of KH560 mass fraction on mechanical properties of composites. (a)Tensile properties; (b)Impact properties;(c)Bending properties"

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