纺织学报 ›› 2019, Vol. 40 ›› Issue (02): 82-86.doi: 10.13475/j.fzxb.20180405905

• 纺织工程 • 上一篇    下一篇

玄武岩织物增强聚乳酸复合材料的制备及其拉伸断裂性能

余娟娟, 刘淑强(), 吴改红, 阴晓龙   

  1. 太原理工大学 轻纺工程学院, 山西 太原 030600
  • 收稿日期:2018-04-25 修回日期:2018-11-15 出版日期:2019-02-15 发布日期:2019-02-01
  • 通讯作者: 刘淑强
  • 作者简介:余娟娟(1992—),女,硕士生。主要研究方向为纺织材料与纺织品设计。
  • 基金资助:
    山西省高等学校科技创新项目(2015125);山西省高等学校大学生创新创业训练计划项目(2018099)

Preparation and tensile fracture properties of basalt fabric reinforced polylactic acid composites

YU Juanjuan, LIU Shuqiang(), WU Gaihong, YIN Xiaolong   

  1. College of Textile Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030600, China
  • Received:2018-04-25 Revised:2018-11-15 Online:2019-02-15 Published:2019-02-01
  • Contact: LIU Shuqiang

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摘要：

为提高聚乳酸复合材料的力学性能,以玄武岩织物(BF)为增强材料,聚乳酸(PLA)为基体材料,采用真空灌注法制备玄武岩织物增强聚乳酸复合材料。研究了偶联剂KH550质量分数、铺层层数、铺层角度对BF/PLA复合材料拉伸断裂性能的影响,并借助扫描电子显微镜对复合材料拉伸实验后的断裂形貌图进行分析。结果表明:随着KH550质量分数的增加,BF/PLA复合材料的拉伸断裂强度出现先增大后减小的趋势,且KH550质量分数为3%时处理效果最佳,此时复合材料的拉伸断裂强度提高到82 MPa,且断面整齐;玄武岩织物铺层角度为0°和90°时,复合材料的拉伸断裂性能较优,45°铺设时最差,且拉伸实验后层间分离现象明显;在一定范围内复合材料的断裂强度随玄武岩织物铺层层数的增加而增加。

关键词: 玄武岩织物, 聚乳酸, 复合材料, 硅烷KH550, 铺层角度, 铺层层数, 拉伸断裂性能

Abstract:

In order to improve the mechanical properties of polylactic acid(PLA)composites, basalt fabric(BF)reinforced polylactic acid composites were prepared by vacuum infusion method. The effects of mass fraction of coupling agent KH550, laying angle and the layer number on the properties of the composite were studied, and the fracture morphology of the composite after tensile test was observed by scanning electron microscope. The results show that the tensile fracture strength of the composite increased first and then decreased with the increase of KH550 mass fraction. The best treatment effect of KH550 was 3%, the tensile strength of composite was increased to 82 MPa, and the section of the composite was neat after tensile test. The tensile fracture performance of the composite was better when the laying angle were 0° and 90°, and the worst was 45°, and the phenomenon of interlaminar separation was obvious. Meanwhile, with increase of the layer number of basalt fabric in a certain range, the tensile fracture strength of the composite risse.

Key words: basalt fabric, poly lactic acid, composite, coupling agent KH550, laying angle, layer number, tensile fracture property

中图分类号: 

  • TB332

图1

KH550质量分数对拉伸断裂性能的影响"

图2

不同质量分数KH550处理后复合材料的拉伸断面扫描电镜照片(×200)"

图3

铺层角度对拉伸断裂性能的影响"

图4

不同铺层角度复合材料拉伸断裂扫描电镜照片(×200)"

图5

铺层层数对拉伸断裂性能影响"

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