Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (01): 167-171.doi: 10.13475/j.fzxb.20210910406

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation and properties of waste cotton regenerative aerogel/warp-knitted spacer fabric composites

LI Zhenzhen1,2, ZHI Chao1,2(), YU Lingjie1,2, ZHU Hai1,2, DU Mingjuan3   

  1. 1. School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
    2. Key Laboratory of Functional Textile Material and Product, Ministry of Education, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
    3. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2021-09-27 Revised:2021-11-03 Online:2022-01-15 Published:2022-01-28
  • Contact: ZHI Chao E-mail:zhichao@xpu.edu.cn

Abstract:

Aimed at the problem that cellulose aerogel has low strength, high brittleness, and poor toughness, cotton was used as the raw material and dissolved it in the sodium hydroxide/urea aqueous solution system to obtain cotton cellulose aerogel (CFA), which was then combined with the warp-knitted spacer fabric (WKSF) in-situ composite to develop a new type of CFA/WKSF composite. A series of researches were finally conducted to analyze the morphology and performance such as compression and insulation of the new type of material. The results show that CFA/WKSF composite maintains the porous mesh structure of aerogel, and the use of WKSF of chain and inlay structure increases the compression elastic module and yield strength of CFA by 180% and 450%, respectively, and WKSF of hexagonal mesh structure increases the compression elastic module and yield strength of CFA by 70% and 312%, respectively. With the use of hexagonal mesh structure of WKSF, the thermal conductivity of CFA/WKSF composite aerogel is grown only by 5%, indicating excellent insulation of the composite material.

Key words: waste textiles, cotton cellulose aerogel, warp-knitted spacer fabric, composite, compression performance, insulation performance

CLC Number: 

  • TS190

Fig.1

Schematic illustration of preparation process for CFA/WKSF composite"

Fig.2

Physical drawing of three kinds of composite materials"

Fig.3

SEM images of three kinds of composite materials before and after compression"

Fig.4

Compression performance of three kinds of composite materials. (a) Compression stress-strain curves of CFA;(b) Compression stress-strain curve of CFA/WKSF1 and CFA/WKSF2; (c) Compression elastic modulus and yield strength;(d) Cyclic compression stress-strain curves of CFA/WKSF1; (e) Cyclic compression stress-strain curves of CFA/WKSF2"

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