纺织学报 ›› 2021, Vol. 42 ›› Issue (01): 73-77.doi: 10.13475/j.fzxb.20191105906

• 纺织工程 • 上一篇    下一篇

玻璃纤维/光敏树脂复合材料的3D打印及其力学性能

宋星, 金肖克, 祝成炎, 蔡冯杰, 田伟()   

  1. 浙江理工大学 纺织科学与工程学院(国际丝绸学院), 浙江 杭州 310018
  • 收稿日期:2019-11-25 修回日期:2020-08-30 出版日期:2021-01-15 发布日期:2021-01-21
  • 通讯作者: 田伟
  • 作者简介:宋星(1992—),男,硕士生。主要研究方向为基于3D打印技术的纤维增强复合材料制备与性能。

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

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摘要：

为解决光固化3D打印树脂材料强度低的问题,将玻璃纤维与光敏树脂复合,采用光固化3D打印技术制备玻璃纤维增强复合材料,分析了玻璃纤维经硅烷偶联剂改性处理以及玻璃纤维的铺层方式对复合材料力学性能的影响。结果表明:玻璃纤维可提升复合材料的拉伸强度和弯曲强度,相比于未处理的玻璃纤维,经硅烷偶联剂处理的玻璃纤维对复合材料力学性能的提升更为显著,复合材料的拉伸强度提高了50%,弯曲强度提高了143%;相较于连续长纤维的铺层方式,采用模拟三维正交的铺层方式对于复合材料力学性能影响更为显著,拉伸强度提升了110%,而弯曲强度增加了147%。

关键词: 玻璃纤维, 光敏树脂, 硅烷偶联剂, 铺层方式, 力学性能, 3D打印, 复合材料

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

中图分类号: 

  • TS195.5

图1

纤维增强光敏树脂复合材料3D打印工艺原理图"

图2

正交结构图"

图3

正交交织玻璃纤维增强复合材料实物图"

图4

玻璃纤维增强复合材料截面的微观结构"

图5

各类试样拉伸应力-应变曲线图"

图6

KH-550改性原理图"

表1

不同试样的力学性能"

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

图7

各类试样弯曲应力-应变曲线"

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