Page 26 - 涂层与防护2020-04电子版

涂层与防护
第 41 卷第 4 期 Vol.41 No.4
Apr.2020
2020 年 4 月
COATING AND PROTECTION

低 VOC 双组分水性环氧树脂涂料的配制及性能

研究

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2
于国玲 ，陈宛瑶 ,王学克 3, 4 ,张继芳 3, 4 ,薛森堂 3, 4 ,李顺霞 3, 4
（1.南阳农业职业学院，河南南阳 473000；2.南阳理工学院生物与化学工程学院，河南南阳，473000；3.南阳市水性环
保涂料工程技术研究中心，河南南阳 473000；4.南阳卧龙漆业有限公司，河南南阳 473000）

摘要：用国产水性环氧树脂分散体 HD-E251A 与水性环氧树脂固化剂 CU600 为主要成膜物，选择合
适的助剂配制出了一种性能优良的低 VOC 双组分水性环氧树脂涂料。 研究了环氧与活泼氢当量比、不同
种类及用量的流变助剂和颜填料体积浓度对涂膜性能的影响。 结果表明，当环氧与活泼氢当量比为 1.3∶1、
缔合型聚氨酯流变助剂和气相二氧化硅复配，m(缔合型聚氨酯)=0.2%、m(气相二氧化硅）=0.5%、颜填料体
积浓度为 35%时，所得水性环氧树脂涂料的贮存稳定性较好，施工性能优异；VOC 60 g/L；涂膜光泽度 82；
硬度 2H；柔韧性 1 级；耐冲击性 50 cm；耐中性盐雾 1 200 h。
关键词：低 VOC；水性环氧树脂；环氧树脂涂料；双组分；流变助剂；环氧与活泼氢当量比；颜填料体
积浓度
中图分类号：TQ630.7 文献标识码：A 文章编号：1672-2418(2020)04-0014-05

Preparation and Properties of Low-VOC 2K Waterborne

Epoxy Coatings

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3,4
3,4
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3,4
Yu Guoling , Chen Wanyao , Wang Xueke , Zhang Jifang , Xue Sentang , Li Shunxia 3,4
(1.Nanyang Agricultural Vocational College, Nanyang, Henan 473000, China; 2. School of biology and
chemical engineering, Nanyang Institute of technology, Nanyang, Henan 473000, China; 3. Nanyang
Water Based Environmental Protection Coating Engineering Technology Research Center, Nanyang,
Henan 473000, China; 4. Nanyang Wolong Paint Co., Ltd., Nanyang, Henan 473000, China)
Abstract: A kind of low -VOC 2K waterborne epoxy coating with excellent performance is
prepared by using domestic waterborne epoxy resin dispersion HD-E251A and waterborne epoxy
resin curing agent CU600 and selecting suitable additives. The effects of different kinds and dosages

of rheological AIDS, the equivalent ratio of epoxy to active hydrogen and the volume concentration of
pigments and fillers on the properties of the film are studied. The results show that the waterborne
epoxy coating has good storage stability and excellent construction performance when the equivalent
ratio of epoxy to active hydrogen is 1.3:1, the rheological assistant of associating polyurethane and
fumed silica are compounded, m (associating polyurethane) is 0.2%, m (fumed silica) is 0.5%, and
the volume concentration of pigment and filler is 35%. Specifically, the coating shows VOC 60g / L,
gloss 82, hardness 2h, flexibility level 1, impact resistance 50 kg / cm and neutral salt spray
resistance 1,200 h.
Keywords： Low VOC; waterborne epoxy resin; epoxy resin coating; 2K; rheological AIDS;
equivalent ratio of epoxy to active hydrogen; volume concentration of pigments and fillers

14 探索研究 RESEARCH AND DEVELOPMENT