纺织学报 ›› 2021, Vol. 42 ›› Issue (09): 131-136.doi: 10.13475/j.fzxb.20201102106

• 染整与化学品 • 上一篇    下一篇

双氧水/抗坏血酸引发甲基丙烯酸甲酯接枝改性锦纶6织物及其性能

陈香香1, 吴婷2, 周伟涛1,2,3(), 孙洋洋1, 杜姗1, 张晓莉1   

  1. 1.中原工学院 河南省功能性纺织材料重点实验室, 河南 郑州 451191
    2.中原工学院 纺织服装产业研究院, 河南 郑州 451191
    3.纺织服装产业河南省协同创新中心, 河南 郑州 451191
  • 收稿日期:2020-11-10 修回日期:2021-06-08 出版日期:2021-09-15 发布日期:2021-09-27
  • 通讯作者: 周伟涛
  • 作者简介:陈香香(1998—),女,硕士生。主要研究方向为纺织新材料的结构与性能。
  • 基金资助:
    河南省高等学校重点科研资助项目(18A540003);郑州市科技公关项目(153PKJGG129);中原工学院青年骨干教师培养计划项目(2018XQG03)

Grafting modification of polyamide 6 fabric with methyl methacrylate initiated by hydrogen peroxide/ascorbic acid and its properties

CHEN Xiangxiang1, WU Ting2, ZHOU Weitao1,2,3(), SUN Yangyang1, DU Shan1, ZHANG Xiaoli1   

  1. 1. Hennan Key Laboratory of Functional Textile Materials, Zhongyuan University of Technology, Zhengzhou, Henan 451191, China
    2. Institute of Textile and Garment Industry, Zhongyuan University of Technology, Zhengzhou, Henan 451191, China
    3. Collaborative Innovation Center of Henan Province for Textile and Garment Industry, Zhengzhou, Henan 451191, China
  • Received:2020-11-10 Revised:2021-06-08 Published:2021-09-15 Online:2021-09-27
  • Contact: ZHOU Weitao

摘要:

针对长时间光照下锦纶6织物白度下降的问题,采用双氧水/抗坏血酸(H2O2/H2A)引发甲基丙烯酸甲酯(MMA)接枝改性锦纶6,研究了接枝时间、接枝温度、引发剂质量分数和单体浓度对接枝率的影响,并对接枝改性前后织物的微观形貌、化学结构、白度和服用性能进行表征。结果表明:最佳接枝工艺为接枝温度70 ℃,接枝时间60 min,引发剂H2O2/H2A质量分数30%,MMA浓度1.5 mol/L;接枝改性后锦纶6织物表面变得粗糙,附有小颗粒状物质;在紫外光下照射8 h后,接枝改性锦纶6织物的白度由未改性的58.6提高至70.53,表现出优良的耐光性能,且硬挺度由10.7增加至23.6,光滑度由71.7增加至80.3,可保持良好的服用性能。

关键词: 锦纶6织物, 表面改性, 引发体系, 接枝工艺, 耐光性, 服用性能, 白度

Abstract:

In order to tackle the whiteness declination of polyamide 6 fabric after prolonged light exposure, methyl methacrylate (MMA) was grafted onto polyamide 6 (PA6) via hydrogen peroxide/ascorbic acid(H2O2/H2A) as initiator. The effects of grafting time, grafting temperature, initiator and monomer concentration on grafting rate were studied, and the micro morphology, chemical structure, whiteness and wearability of the grafted fabric were characterized. The optimal process conditions were identified as follows: grafting temperature 70 ℃, grafting time 60 min, initiator H2O2/H2A mass fraction 30%, MMA concentration 1.5 mol/L. The fabric surface became rough after grafting with small granular materials. The whiteness index of the modified fabric increased from the previous 58.6 to 70.53 after UV irradiation for 8 h, showing excellent light resistance. The stiffness index of the modified fabric increased from 10.7 to 23.6, and the smoothness increased from 71.7 to 80.3, both contributing to good wearability.

Key words: polyamide 6 fabric, surface modification, initiation system, grafting process, light resistance, wearability, whiteness

中图分类号: 

  • TS156

图1

反应时间对PA6织物接枝率的影响"

图2

反应温度对PA6织物接枝率的影响"

图3

引发剂质量分数对PA6织物接枝率的影响"

图4

MMA浓度对PA6织物接枝率的影响"

图5

不同接枝率的PA6织物的扫描电镜照片"

图6

接枝前后PA6织物的红外光谱图"

表1

不同接枝率下PA6织物光照前后的白度"

接枝率/% 白度/%
未光照 光照8 h
0.00 60.62 58.63
0.68 62.22 62.56
1.06 64.15 65.13
2.40 68.94 70.53

表2

接枝率对PA6织物硬挺度和光滑度的影响"

接枝率/% 硬挺度 光滑度
0.00 10.7 71.7
0.68 16.8 77.6
1.06 18.9 78.8
2.40 23.6 80.3
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