纺织学报 ›› 2021, Vol. 42 ›› Issue (04): 127-131.doi: 10.13475/j.fzxb.20200401905

• 染整与化学品 • 上一篇    下一篇

自修复双层微胶囊的制备及其在玄武岩织物上的应用

刘淑强1,2(), 靖逸凡1, 杨雅茹3, 吴改红1, 余娟娟1, 王凯文1, 李惠敏1, 李甫1,2, 张曼1,2   

  1. 1.太原理工大学 轻纺工程学院, 山西 太原 030024
    2.太原理工大学 新型功能纺织品实验室,山西 晋中 030600
    3.嘉兴学院 材料与纺织工程学院, 浙江 嘉兴 314001
  • 收稿日期:2020-04-07 修回日期:2021-02-06 出版日期:2021-04-15 发布日期:2021-04-20
  • 作者简介:刘淑强(1981—),男,副教授,博士。主要研究方向为新型功能纺织品。E-mail: liushuqiang8866@126.com。
  • 基金资助:
    山西省高等学校科技成果转化培育项目(2020CG014);山西省研究生教育创新项目(2020SY466)

Preparation of self-healing double-layer microcapsules and its application for basalt fabrics

LIU Shuqiang1,2(), JING Yifan1, YANG Yaru3, WU Gaihong1, YU Juanjuan1, WANG Kaiwen1, LI Huimin1, LI Fu1,2, ZHANG Man1,2   

  1. 1. College of Textile Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
    2. Functional and Smart Textile Laboratory, Taiyuan University of Technology, Jinzhong, Shanxi 030600, China
    3. College of Materials and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
  • Received:2020-04-07 Revised:2021-02-06 Online:2021-04-15 Published:2021-04-20

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摘要：

为提高玄武岩织物的抗折性能,首先用原位聚合法制备单层微胶囊,囊壁为三聚氰胺-尿素-甲醛共聚物(MUF),囊芯为环氧树脂;然后将固化剂二氨基二苯砜吸附在单层微胶囊表面,以MUF再次包覆制成双层微胶囊;最后将双层微胶囊涂覆到玄武岩织物表面。测试了微胶囊的微观形貌和化学结构,分析了微胶囊自修复玄武岩织物的自修复性能。结果表明:制备的微胶囊结构致密、表面光滑;当玄武岩纤维受到破坏时,微胶囊破裂流出修复剂和固化剂通过聚合反应生成网络大分子修复裂纹;修复7 d后玄武岩织物的最大断裂强力和折皱回复性能可基本恢复,延伸性能有很大改善,抗折性能得到有效提高。

关键词: 玄武岩织物, 微胶囊, 水性聚氨酯, 原位聚合法, 自修复, 抗折性能

Abstract:

In order to improve the bending resistance of basalt fabric, a monolayer microcapsules were prepared by in-situ polymerization.The wall of the monolayer microcapsule was melamine urea formaldehyde copolymer (MUF), and the core was epoxy resin. Then the curing agent diaminodiphenyl sulfone was adsorbed on the surface of the monolayer microcapsules, and then coated with MUF to make double microcapsules.Finally, the double microcapsules were coated on the surface of basalt fabric. The micromorphology and chemical structure of the microcapsules were tested, and the self-healing properties of the microcapsule self-healing basalt fabric were analyzed.The results show that the prepared microcapsules has a compact structure and a smooth surface. When the basalt fiber was damaged, the microcapsules releases the repair agent and curing agent to generate a network of macromolecules for repairing the cracks.After 7 d repair, the maximum breaking strength and the wrinkle recovery performance of the basalt fabric is basically restored, with the elongation and the flexural performance effectively improved.

Key words: basalt fabric, microcapsule, water-based polyurethane, in-situ polymerization, smart self-healing, bending resistance

中图分类号: 

  • TB332

图1

单层微胶囊的扫描电镜与光学显微镜照片"

图2

单层微胶囊的红外谱图"

图3

双层微胶囊的SEM与光学显微镜照片"

图4

双层微胶囊与固化剂DDS的红外光谱图"

图5

微胶囊自修复玄武岩织物的拉伸曲线"

图6

织物拉伸断裂后的 SEM 照片"

表1

不同修复时间下玄武岩织物的折皱回复角"

试样名称 初始折皱
回复角/(°)		 不同修复时间下的折皱回复角/(°)
0 d 1 d 3 d 7 d
未处理玄武岩织物 147.45 110.89 119.45 113.57 115.23
微胶囊自修复玄武岩织物 166.02 144.36 152.80 155.34 160.34
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