Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (04): 127-131.doi: 10.13475/j.fzxb.20200401905

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

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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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

CLC Number: 

  • TB332

Fig.1

SEM image (a) and optic microscope photograph (b) of single-layer microcapsules"

Fig.2

Infrared spectra of single-layer microcapsules"

Fig.3

SEM image (a) and optic microscope photographs (b) of double-layer microcapsules"

Fig.4

Infrared spectra of double layer microcapsule and DDS"

Fig.5

Tensile curve of microcapsule self-healing basalt fabric"

Fig.6

SEM images after tensile fracture of fabric. (a) Without damage; (b)Repaired for 7 d"

Tab.1

Wrinkle recovery angle of basalt fabric under different repair time"

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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