偶氮苯-聚氨酯基抗皱功能高分子染料制备及性能

纺织学报 ›› 2016, Vol. 37 ›› Issue (2): 79-84.

偶氮苯-聚氨酯基抗皱功能高分子染料制备及性能

收稿日期:2015-09-25 修回日期:2015-11-10 出版日期:2016-02-15 发布日期:2016-02-22

Synthesis and property of azobenzene-polyurethane based anti-wrinkle polymeric dye

Received:2015-09-25 Revised:2015-11-10 Online:2016-02-15 Published:2016-02-22

摘要/Abstract

摘要：

为同步实现纺织品着色与功能整理并改善低分子染料的耐热迁移性，通过共价键合方式将N, N-二羟乙基偶氮苯发色体引入聚氨酯分子链，制备具有抗皱功能的偶氮苯-聚氨酯基高分子染料。结果表明，偶氮苯发色体的反应率为87.81%，占聚氨酯链的3.53%，偶氮苯-聚氨酯基高分子染料色光未发生变化，且涂层织物色泽鲜艳饱满，K/S值从1.50提高到4.61，急弹折皱回复角从110°增大到183°，缓弹折皱回复角从136°提高到227°，且热迁移率下降至5%。因此，偶氮苯-聚氨酯基高分子染料不仅具有良好的抗皱性及耐热迁移性，而且为缩短纺织品加工工艺流程提供了一条新途径。

关键词: 高分子染料, 聚氨酯, 偶氮苯, 抗皱性, 耐热迁移性

Abstract:

Azobenzene-polyurethane based polymeric dye with anti-wrinkle property was prepared by covalently bonding N, N-di(2-hydroxyethyl) azobenzene with polyurethane chain in order to synchronously realize coloring and functional finishing and enhance the thermal migration. Results showed that reaction rate of the azobenzene and its content in polyurethane chain were 87.81% and 3.53%, respectively. The color remained unchanged after the azobenzene was introduced into the polyurethane. The coated cotton fabric with the azobenzene-polyurethane polymeric dye presented more vivid and richer shade than that with azobenzene physically mixed polyurethane, and the K/S value increased from 1.50 to 4.61. The fast and delayed elastic recovery angles of the coated fabric were improved from 110° to 183° and 136° to 227°, respectively. The thermal migration rate was dramatically reduced to 5%. Consequently, the azobenzene-polyurethane polymeric dye exhibited outstanding anti-wrinkle property and thermal migration property, which provided a novel route for shortening the textile technological process.

Key words: polymeric dye, polyurethane, azobenzene, anti-wrinkle property, thermal migration

冒海燕张淼强思雨杨小祥王潮霞殷允杰. 偶氮苯-聚氨酯基抗皱功能高分子染料制备及性能[J]. 纺织学报, 2016, 37(2): 79-84.

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