过硫酸钾-连二亚硫酸钠氧化还原体系在蚕丝接枝增重上的应用

纺织学报 ›› 2013, Vol. 34 ›› Issue (1): 50-55.

过硫酸钾-连二亚硫酸钠氧化还原体系在蚕丝接枝增重上的应用

江崃¹ 朱小行² 沈一峰^1，3 黄晴¹

1. 浙江理工大学民制备技术教育部重点实验室
2. 浙江理工大学服装学院
3. 浙江理工大学生态染整技术教育部工程研究中心

收稿日期:2012-03-01 修回日期:2012-08-23 出版日期:2013-01-15 发布日期:2013-01-07
通讯作者: 朱小行 E-mail:zxh9770@163.com
基金资助:
优先主题重大工业项目

Application of potassium persulfate/sodium dithionate redox system in graft weighting of silk

Received:2012-03-01 Revised:2012-08-23 Online:2013-01-15 Published:2013-01-07

摘要/Abstract

摘要： 针对甲基丙烯酰胺(MAA)接枝增重真丝纱线中采用过硫酸钾(KPS)为引发剂而出现的增重丝泛黄的问题，提出用过硫酸钾(KPS)-连二亚硫酸钠(SH)氧化还原体系引发真丝纱线接枝增重以提高增重丝白度，研究了各种工艺参数对接枝增重率的影响。结果表明：KPS-SH氧化还原体系引发MAA接枝增重真丝纱线较过硫酸钾引发增重丝白度高；当MAA的浓度为0.4mol/L时，引发剂KPS-SH和单体MAA的质量比为5:100，其中KPS与SH的摩尔比为10:3，在pH值为3，70℃接枝反应70min的工艺条件下，真丝纱线接枝增重率较KPS引发增重丝基本不变，白度较KPS引发增重丝提高19左右。

关键词: 蚕丝纤维, 接枝增重, KPS-SH氧化还原引发体系, 增生率, 白度

Abstract: For appearance of the problem that weighting silk yellowed by the use of potassium persulfate(KPS) as an initiator in the process of methacrylamide ( MAA ) graft weighting silk yarn, potassium persulfate ( KPS ) and sodium dithionite( SH ) redox initiator system for silk yarn grate weighting was put forward to adopt to improve weighting silk whiteness. Also the effect of various process parameters on the graft weighting rate was studied in this dissertation. The results showed that: KPS&SH redox initiator system gave a better whiteness than KPS only in MAA graft weighting silk yarn; when the concentration of MAA is 0.4mol/L, mass ratio of KPS&SH initiator and MAA monomer was 5:100, molar ratio of KPS and SH was 10:3, under process conditions with pH value at 3, 70℃ temperature and a grafting reaction time of 70mins, silk yarns graft weighting rate was essentially the same as that with KPS only, but the whiteness was improved by 19 degrees.

Key words: silk, graft weighting, KPS-SH redox system initiator, weighting rate, whiteness

中图分类号:

TS 102.6

江崃朱小行沈一峰黄晴. 过硫酸钾-连二亚硫酸钠氧化还原体系在蚕丝接枝增重上的应用[J]. 纺织学报, 2013, 34(1): 50-55.

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