单宁酸基荧光水性聚氨酯的制备与性能研究

doi:10.19677/j.issn.1004-7964.2022.06.007

皮革科学与工程 ›› 2022, Vol. 32 ›› Issue (6): 39-44.doi: 10.19677/j.issn.1004-7964.2022.06.007

单宁酸基荧光水性聚氨酯的制备与性能研究

刘杨^1,2, 黄吉进^1,3, 张泽天^1,2, 李正军^1,2,*

1.四川大学制革清洁技术国家工程实验室,四川成都 610065;
2.四川大学皮革化学与工程教育部重点实验室,四川成都 610065;
3.四川大学轻工科学与工程学院,四川成都 610065

收稿日期:2022-04-28 出版日期:2022-12-28 上线日期:2022-11-22
通讯作者: * 李正军（1966-）,男,教授,主要从事清洁化制革工艺及绿色皮革化工材料研究,E-mail：lizhengjun@scu.edu.cn。
作者简介:刘杨（1995-）,男,2020级博士研究生,E-mail：837249061@qq.com。
基金资助:
国家自然科学基金面上项目（21376153）; 中央高校基本科研业务费专项基金

Synthesis and Characterization of Tannic Acid based Fluorescent Waterborne Polyurethane

LIU Yang^1,2, HUANG Jijin^1,3, ZHANG Zetian^1,2, LI Zhengjun^1,2,*

1. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
2. The Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, China;
3. College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China

Received:2022-04-28 Online:2022-12-28 Published:2022-11-22

摘要/Abstract

摘要： 以单宁酸（TA）作为交联剂,采用预聚体法合成了一种新型单宁酸基荧光水性聚氨酯（TA-WPU）乳液,利用红外和紫外光谱对其结构进行表征。考察了TA用量对乳液粒径及其分布、胶膜耐热性、力学性能和耐水性的影响,并利用荧光光谱对TA-WPU的荧光性能进行表征。结果表明,随着TA用量的增加,TA-WPU乳液的粒径逐渐增大,胶膜的耐热性、力学性能和耐水性得到改善;与未改性WPU相比,TA-WPU在紫外光（365 nm）下具有明显的荧光,初步应用表明其可用于皮革的荧光防伪涂层。

关键词: 水性聚氨酯, 单宁酸, 荧光, 涂层, 环境友好材料

Abstract: A novel tannic acid (TA) based fluorescent waterborne polyurethane (TA-WPU) emulsion was synthesized by prepolymer method using TA as a crosslinking agent, and its chemical structure was characterized by Fourier transform infrared spectroscopy (FT-IR) and UV-vis spectroscopy. The effects of TA content on the particle size and distribution of TA-WPU emulsions, the heat resistance, mechanical properties and water resistance of the corresponding films were investigated. Further, the fluorescence of TA-WPU was characterized by fluorescence spectrum. The results showed that the particle size of TA-WPU emulsions increased gradually, and the heat resistance, mechanical properties and water resistance of the corresponding films were improved with the increase in TA content. Compared with pure WPU, TA-WPU exhibited obvious fluorescence under UV light (365 nm), which can be used as fluorescent anti-counterfeiting coating for leather.

Key words: waterborne polyurethane, tannic acid, fluorescence, coating, environmentally friendly material

中图分类号:

TS529.6

刘杨, 黄吉进, 张泽天, 李正军. 单宁酸基荧光水性聚氨酯的制备与性能研究[J]. 皮革科学与工程, 2022, 32(6): 39-44.

LIU Yang, HUANG Jijin, ZHANG Zetian, LI Zhengjun. Synthesis and Characterization of Tannic Acid based Fluorescent Waterborne Polyurethane[J]. Leather Science and Engineering, 2022, 32(6): 39-44.

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单宁酸基荧光水性聚氨酯的制备与性能研究

Synthesis and Characterization of Tannic Acid based Fluorescent Waterborne Polyurethane

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