Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (01): 73-77.doi: 10.13475/j.fzxb.20191105906

• Textile Engineering • Previous Articles     Next Articles

3D printing and mechanical properties of glass fiber/photosensitive resin composites

SONG Xing, JIN Xiaoke, ZHU Chengyan, CAI Fengjie, TIAN Wei()   

  1. College of Textile Science and Engineering(International Institute of Silk), Zhejiang Sci-Tech University,Hangzhou, Zhejiang 310018, China
  • Received:2019-11-25 Revised:2020-08-30 Online:2021-01-15 Published:2021-01-21
  • Contact: TIAN Wei E-mail:47151938@qq.com

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Abstract:

Aiming at the low strength of light-cured 3D printing resin materials, a method of using glass fiber to reinforce photosensitive resin composites was proposed. The glass fiber and the photosensitive resin were compounded and rapidly fabricated by using the light-cured 3D printing technology. The effects of glass fiber modification and the laying method of glass fiber on the mechanical properties of the composites were studied. The results of the mechanical experiments were analyzed, demonstrating that the glass fiber could enhance the tensile strength and flexural strength of the sample. The glass fiber treated by the silane coupling agent is more significant than the untreated glass fiber for the mechanical properties, and the tensile strength of the sample is increased by 50%, and the bending strength 143%. The effect of the laying method simulating three-dimensional orthogonal structure on mechanical properties of the composites is more significant than the continuous long fiber laying method, and the tensile strength is increased by 110% and the flexural strength 147%.

Key words: glass fiber, photosensitive resin, silane coupling agent, laying method, mechanical property, 3D printing, composite material

CLC Number: 

  • TS195.5

Fig.1

Schematic diagram of 3D printing process of fiber reinforced photosensitive resin composite material"

Fig.2

Diagram of orthogonal structure"

Fig.3

Physical image of orthogonally interwoven glass fiber reinforced composites"

Fig.4

Cross section microstructure of glass fiber reinforced composite. (a) Glass fiber reinforced photosensitive resin; (b) Modified glass fiber reinforced photosensitive resin"

Fig.5

Tensile stress-strain curves of various samples. (a) Modified glass fiber reinforced composites;(b) Orthogonally interwoven glass fiber reinforced composites"

Fig.6

Schematic diagram of KH-550 modification"

Tab.1

Mechanical properties of various samples"

材料 拉伸强度 弯曲强度
测量值/
MPa		 增加百
分率/%		 测量值/
MPa		 增加百
分率/%
纯树脂 6.83 75.39
玻璃纤维增强复合材料 8.06 18 132 42
改性玻璃纤维增强复合材料 10.26 50 183 143
正交玻璃纤维增强复合材料 14.37 110 186 147

Fig.7

Bending stress-strain curves of various sampless"

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