Page 28 - 《涂层与防护》2020年第2期

涂层与防护
第 41 卷第 2 期 Vol.41 No.2
Feb.2020
2020 年 2 月
COATING AND PROTECTION

家电板用耐刮伤背漆的研制

李扬，周春利，冯春苗，吴奎录
（中海油常州涂料化工研究有限公司，江苏常州 213016）

摘要：制备了一种家电板背漆用环氧改性聚酯树脂，并用该树脂研制了家电板用耐刮伤背漆。 重点研
究了影响背漆综合性能特别是漆膜耐划伤性的一些主要因素。 包括氨基树脂用量、酸催化剂用量、颜基比、
蜡粉用量、烘烤温度对家电板背漆性能的影响。 结果表明，蜡粉用量对背漆耐刮伤性能的影响最大；当环氧
改性聚酯树脂/氮基树脂的比例为 80/20、酸催化剂（1051）用量为 1%~1.5%、颜基比为 0.8~0.9、蜡粉用量为
0.5%、板温控制在 224~232 ℃时，背漆综合性能较好，且耐划伤性优异，整体性能可达到客户实际使用要求。
关键词：环氧改性聚酯树脂；家电板；背漆；耐划伤；蜡粉
中图分类号：TQ630.7 文献标识码：A 文章编号：1672-2418(2020)02-0016-06

Preparation of Back Coil Coatings with Scratching

Resistance for Household Appliances

Li yang, Zhou chunli, Feng chunmiao, Wu kuilu
(CNOOC Changzhou Paint & Coatings Industry Research Institute Co., Ltd., Changzhou, Jiangsu
213016, China)

Abstract: An epoxy-modified polyester resin for back coil coatings was prepared. And back coil
coatings with scratching resistance for household appliances was also developed using the resin. The
influence of main factors on the comprehensive performance especially the scratching resistance of
back coil coatings were studied. The effects of amino resin dosage, acid catalyst dosage, pigment /
binder ratio, wax powder dosage and the board temperature on the performance of back coil coatings
were discussed. The experimental results showed that wax powder dosage had great influence on the
comprehensive performance of back coil coatings. The coating showed the optimal properties and
excellent scratching resistance when the epoxy-modified polyester resin/amino resin was 80/20, the
dosage of acid catalyst 1051 was 1%-1.5%, the pigment/binder ratio was 0.8-0.9, the dosage of wax
powder was 0.5%, the board temperature was controlled at 224-232℃. The overall performance of
the back coil coatings met the actual requirements of the customers.
Keywords： polyester resin modified by epoxy； coil coating for household appliance； back coil

coating； scratching resistance

0 引言 板，家电板对背漆的性能要求更高。 家电板背漆通常
采用单涂层，膜较薄，主要作用是在背面起保护作用，
作为预涂卷材涂料更高、更新的应用市场，家电 要求漆膜有良好的耐盐雾性能、贴发泡层性能、抗粘
板市场近年来得到了蓬勃发展。 相对于传统的建筑 连性能和加工性能等，但在装饰性和耐久性方面要求

16 涂层技术 COATING TECHNOLOGY