Study on structure and moisture absorption and liberation properties of bio-based polyamide 56 and polyamide 66

被引：0
|
作者：
Wang J. [1 ]
Li Y. [1 ,2 ]
Hao X. [2 ]
Yan J. [2 ]
Qiao R. [2 ]
Wang M. [2 ]
机构：
[1] School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing
[2] Institute of Quartermaster Engineering & Technology, Systems Engineering Institute, Academy of Military Sciences, Beijing
来源：
Fangzhi Xuebao/Journal of Textile Research | 2021年 / 42卷 / 08期
关键词：
Bio-based polyamide 56; Fiber structure; Moisture adsorption property; Moisture liberation property; Polyamide; 66;
D O I：
10.13475/j.fzxb.20210300507
中图分类号：
学科分类号：
摘要：
Aiming at the analyse of moisture absorption and liberation properties of bio-based polyamide 56 and polyamide 66, characteristic curves of moisture absorption and liberation, and drying of bio-based polyamide 56 draw texturing yarn (DTY), polyamide 66 DTY, bio-based polyamide 56 and polyamide 66 staple fiber were obtained by testing under the standard condition. According to the characteristic curves, the regression equation of moisture regain or moisture content to time were deduced during the moisture absorption, liberation and drying equilibrium process for the four types of fibers under the standard testing conditions. The results show that under standard atmospheric conditions, bio-based polyamide 56 fiber has a higher moisture absorption and liberation balance, higher moisture absorption and drying rates, and a slightly lower initial moisture release rate compared with the polyamide 66 fiber. However, bio-based polyamide 56 has a higher moisture release rate than polyamide 66 with the increase of time. The moisture absorption isotherms of the four types of fibers are all in a reverse "S" shape. In a high humidity environment, the drying property of bio-based polyamide 56 is better than that of polyamide 66, i.e., bio-based polyamide 56 has better quick-drying performance. © 2021, Periodical Agency of Journal of Textile Research. All right reserved.
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页码：1 / 7
页数：6
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