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[1]刘茂松,张松鹏,程 凯,等.光固化丙烯酸阴极电泳涂料的制备及性能研究[J].武汉工程大学学报,2023,45(02):0.[doi:10.19843/j.cnki.CN42-1779/TQ.202301007]
 LIU Maosong,ZHANG Songpeng,CHENG Kai,et al.Preparation and Properties of Photo-Curing Acrylic Acid CathodeElectrocoatings[J].Journal of Wuhan Institute of Technology,2023,45(02):0.[doi:10.19843/j.cnki.CN42-1779/TQ.202301007]
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光固化丙烯酸阴极电泳涂料的制备及性能研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
45
期数:
2023年02期
页码:
0
栏目:
化学与化学工程
出版日期:
2023-04-30

文章信息/Info

Title:
Preparation and Properties of Photo-Curing Acrylic Acid Cathode
Electrocoatings
文章编号:
1674 - 2869(2023)02 - 0156 - 06
作者:
刘茂松1张松鹏2程 凯1韩 禹3张 诣3黎俊波3余响林*1
1. 武汉工程大学化工与制药学院,湖北 武汉 430205;
2. 内蒙古众安工程技术研究有限公司,内蒙古 呼和浩特 010000;
3. 武汉工程大学化学与环境工程学院,湖北 武汉 430205
Author(s):
LIU Maosong 1 ZHANG Songpeng 2CHENG Kai 1HANG Yu 3 ZHANG Yi 3 LI Junbo 2YU Xianglin*1

1. School of Chemical Engineering and pharmacy, Wuhan Institute of Technology, Wuhan 430205, China;
2. Inner Mongolia Zhongan Engineering Technology Research Co., Ltd, Hohhot 010000, China;
3. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China

关键词:
紫外光固化丙烯酸树脂游离基聚合反应接枝反应阴极电泳涂料
Keywords:
UV curing acrylic resin polymerization grafting reaction cathode electrocoating
分类号:
TQ637
DOI:
10.19843/j.cnki.CN42-1779/TQ.202301007
文献标志码:
A
摘要:
以甲基丙烯酸甲酯、丙烯酸丁酯、甲基丙烯酸二甲氨基乙酯、甲基丙烯酸羟乙酯、苯乙烯等作为功能性单体,通过自由基聚合反应合成丙烯酸基体树脂。通过异佛尔酮二异氰酸酯(IPDI)单体合成的异氰酸酯基(NCO)半饱和封闭物,与丙烯酸基体树脂进行接枝反应,在骨架中引入不饱和键,在紫外光和引发剂作用下制备出低温紫外光固化阴极电泳涂料。探讨了接枝比、活性稀释剂、光引发剂、闪蒸工艺、固化时间等对涂膜的影响,得到涂膜制备的最佳工艺条件:NCO半饱和封闭物与丙烯酸基体树脂接枝比例1∶0.7,活性稀释剂的质量分数为树脂总量的10%,光引发剂的质量分数为成膜物质的3%,闪蒸温度70 ℃,闪蒸时间5 min,紫外光照射60 s。涂膜性能优异,光泽度高,光滑平整,硬度高,抗冲击性能良好,适合工业化生产需要。

Abstract:
The acrylic matrix resin was synthesized by free radical polymerization using functional monomers such as methyl methacrylate, butyl acrylate, dimethylaminoethyl methacrylate, hydroxyethyl methacrylate, and styrene. A low-temperature ultraviolet-curing cathode electropcoating was prepared under the action of ultraviolet light and an initiator through the grafting reaction between the isocyanate semi-saturated block synthesized with isophorone diisocyanate monomer and acrylic resin, which can introduce unsaturated bonds into the skeleton. The effects of grafting ratio, active diluent, photoinitiator, flashing process and curing time on the coating were investigated. The optimum process conditions are as follows: the grafting ratio of isocyanate unsaturated block and acrylic resin is 1∶0.7, mass fraction of the reactive diluent is 10% of the total resin amount, mass fraction of the photoinitiator is 3% of the film-forming substance, flashing temperature is 70 ℃, flashing time is 5 min, and ultraviolet light irradiation is 60 s. The painted film shows excellent performance with high gloss, smoothness, high hardness, and excellent impact resistance, which is suitable for industrial production.

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金(51203127)
作者简介:刘茂松,硕士研究生。E-mail:[email protected]
*通讯作者:余响林,博士,教授。E-mail:[email protected]
引文格式:刘茂松,张松鹏,程凯,等. 光固化丙烯酸阴极电泳涂料的制备及性能研究[J]. 武汉工程大学学报,2023,45(2):156-161,168.

更新日期/Last Update: 2023-05-04