废棉再生气凝胶/经编间隔织物复合材料的制备及其性能

doi:10.13475/j.fzxb.20210910406

纺织学报 ›› 2022, Vol. 43 ›› Issue (01): 167-171.doi: 10.13475/j.fzxb.20210910406

废棉再生气凝胶/经编间隔织物复合材料的制备及其性能

李珍珍¹^,², 支超¹^,²(), 余灵婕¹^,², 朱海¹^,², 杜明娟³

1.西安工程大学纺织科学与工程学院, 陕西西安 710048
2.西安工程大学功能性纺织材料及制品教育部重点实验室, 陕西西安 710048
3.东华大学纺织学院, 上海 201620

收稿日期:2021-09-27 修回日期:2021-11-03 出版日期:2022-01-15 发布日期:2022-01-28
通讯作者: 支超
作者简介:李珍珍(1999—),女,硕士生。主要研究方向为纤维素气凝胶复合材料的研究与开发。
基金资助:
国家自然科学基金项目(51903199);陕西高校青年杰出人才支持计划项目(2020);陕西省自然科学基础研究计划资助项目(2019JQ-182);陕西省自然科学基础研究计划资助项目(2018JQ5214);陕西省教育厅科研计划项目(18JS039);中国纺织工业联合会科技指导性项目(2020046);中国纺织工业联合会科技指导性项目(2020044)

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. 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 Published:2022-01-15 Online:2022-01-28
Contact: ZHI Chao

摘要/Abstract

摘要：

针对废旧纺织品制备纤维素气凝胶存在强度低、脆性高、韧性差的问题,将废旧棉花溶解在氢氧化钠/尿素水溶液体系中得到棉纤维素气凝胶(CFA),然后将经编间隔织物(WKSF)与其进行原位复合,经冷冻干燥得到CFA/WKSF复合材料,并对其形貌、压缩和隔热性能进行分析与研究。结果表明:CFA/WKSF复合材料保持了气凝胶的多孔网状结构;WKSF的加入使CFA的力学性能得到提高,其中编链和衬纬结构WKSF的加入使得CFA的压缩弹性模量和屈服强度分别提高了180%和450%,六角形网孔结构WKSF的加入使得CFA的压缩弹性模量和屈服强度分别提高了70%和312%;加入六角形网孔结构WKSF后,CFA/WKSF复合材料的导热系数相比CFA仅增加5%,仍具有良好的隔热性。

关键词: 废旧纺织品, 棉纤维素气凝胶, 经编间隔织物, 复合材料, 压缩性能, 隔热性能

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

中图分类号:

TS190

李珍珍, 支超, 余灵婕, 朱海, 杜明娟. 废棉再生气凝胶/经编间隔织物复合材料的制备及其性能[J]. 纺织学报, 2022, 43(01): 167-171.

LI Zhenzhen, ZHI Chao, YU Lingjie, ZHU Hai, DU Mingjuan. Preparation and properties of waste cotton regenerative aerogel/warp-knitted spacer fabric composites[J]. Journal of Textile Research, 2022, 43(01): 167-171.

图/表 4

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参考文献 10

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废棉再生气凝胶/经编间隔织物复合材料的制备及其性能

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

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