文献类型：期刊文献

中文题名：环氧树脂基双组分水性聚氨酯的制备及其在木器涂料中的应用

英文题名：Preparation of Epoxy Resin-Based Two-Component Waterborne Polyurethane and its Application in Wood Coatings

作者：吴国民[1,2] 王旭林[3] 陈健[1,2] 叶义英[3] 李小平[3] 肖亚亮[3] 孔振武[1,2]

第一作者：吴国民

机构：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业和草原局林产化学工程重点实验室,江苏省生物质能源与材料重点实验室,南京210042;[2]江苏省林业资源高效加工利用协同创新中心,南京210037;[3]广东蓝洋科技有限公司,广东佛山528131

年份：2020

卷号：50

期号：2

起止页码：74-79

中文期刊名：涂料工业

外文期刊名：Paint & Coatings Industry

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：中国林科院中央级公益性科研院所基本科研业务费专项资金重点项目(CAFYBB2017ZC005);江苏省自然科学基金(BK20191134)。

语种：中文

中文关键词：水性多元醇;双组分水性聚氨酯;环氧树脂;木器涂料

外文关键词：Waterborne polyol;two-component waterborne polyurethane;epoxy resin;wood coatings

分类号：TQ630.4

摘要：为提高双组分水性聚氨酯的室温交联速度,将N-苄基乙醇胺引入到环氧树脂制备了环氧树脂基水性多元醇,表征了多元醇的化学结构,并测定了其相对分子质量、粒径分布和玻璃化温度等主要技术参数。将环氧树脂基水性多元醇与多异氰酸酯配合制备了双组分水性聚氨酯,采用红外光谱法研究了室温交联反应过程。研究结果表明:多元醇分子结构中引入苄胺基加快了双组分水性聚氨酯的交联反应速度。将双组分水性聚氨酯制备成水性木器涂料,漆膜具有优异的耐冲击性、附着力、柔韧性、光泽、耐液体介质、硬度、丰满度等性能。
In order to improve the crosslinking reaction rate of two-component waterborne polyurethane at room temperature,an epoxy resin based waterborne polyol was prepared by modifying bisphenol A epoxy resin with N-benzyl ethanolamine. The chemical structures of the polyol were characterized and the main technical parameters such as molecular weight,particle size distribution and glass transition temperature were determined. The twocomponent waterborne polyurethane was prepared by reacting the epoxy resin based waterborne polyol with polyisocyanate. The crosslinking reaction of the two-component waterborne polyurethane at room temperature was studied by infrared spectroscopy,and the results showed that the benzylamine group in the molecular structure of the polyol could accelerate the crosslinking reaction of the two-component waterborne polyurethane. The waterborne wood coatings were formulated with the epoxy resin based two-component waterborne polyurethane.The coatings exhibited excellent impact strength,adhesion,flexibility,gloss,liquid medium resistance,hardness and fullness.