[1]王雪钢,王利鹏.doi: 10.3969/j.issn.1001-3849.2026.03.006汽车用耐蚀性改性环氧磷酸锌涂层性能分析[J].电镀与精饰,2026,(03):44-51.
　WANG XuegangWANG Lipeng.Performance of corrosion-resistant epoxy Zinc phosphate coating for automobiles[J].Plating & Finishing,2026,(03):44-51.
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doi: 10.3969/j.issn.1001-3849.2026.03.006汽车用耐蚀性改性环氧磷酸锌涂层性能分析()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年03
页码:
44-51
栏目:
出版日期:
2026-03-31

文章信息/Info

Title:
Performance of corrosion-resistant epoxy Zinc phosphate coating for automobiles
作者:
王雪钢1; 王利鹏2
(1. 鹤壁职业技术学院 交通服务与管理学院,河南 鹤壁 458030 ;2. 河南理工大学 鹤壁工程技术学院,河南 鹤壁 458030)
Author(s):
WANG Xuegang1WANG Lipeng2
(1. Department of transportation service and management, Hebi Polytechnic, Hebi 458030, China; 2. Hebi School of Engineering and Technology, Henan University of Technology, Hebi 458030, China)
关键词:
汽车材料; 环氧树脂; 改性磷酸锌; 胱氨酸; 耐蚀; 涂层
Keywords:
automotive material;  epoxy resin;  modified zinc phosphate;  cystine;  corrosion resistance;  coating
分类号:
TQ153.2
文献标志码:
A
摘要:
传统汽车车身的环氧磷酸锌涂层因致密性不足、界面结合弱、耐蚀持久性有限，在复杂服役环境中存在易受腐蚀的问题。采用胱氨酸与环氧基硅烷、纳米二氧化硅复配，对磷酸锌进行协同改性，制备了新型汽车耐蚀环氧涂层。该改性涂层在冷轧钢板上经96 h盐雾实验后评级为9级，锈蚀面积仅1%，远优于纯环氧涂层锈蚀面积的25%和未改性磷酸锌涂层6级。电化学测试中，其高频区阻抗圆弧半径为纯环氧涂层的3倍，低频区阻抗模量达105 kΩ ?cm2，冲击强度较纯环氧涂层提升22.9 %，硬度提升120.7%。结果表明，研究提出的涂层强化了界面的结合与致密性，整体耐蚀性更强，为汽车涂层防腐耐蚀提升提供了更高效、经济的新方案。
Abstract:
Due to insufficient density, weak interfacial bonding and limited corrosion resistance and durability, the epoxy zinc phosphate coating on traditional car bodies is prone to corrosion in complex service environments. Therefore, cystine with epoxysilane and nano-silica to synergistically modify zinc phosphate was compounded. A new type of corrosion-resistant epoxy coating for automobiles was prepared. After a 96 h salt spray test on cold-rolled steel plates, the modified coating was rated as grade 9, with a rusted area of only 1%, which is far superior to 25% rusted area of pure epoxy coatings and the grade 6 rating of unmodified zinc phosphate coatings. In the electrochemical test, the radius of the impedance arc in the high-frequency region is three times that of the pure epoxy coating, the impedance modulus in the low-frequency region reaches 105 kΩ ?cm2, the impact strength is 22.9% higher than that of the pure epoxy coating, and the hardness is higher of 120.7%. The above results indicate that the coating proposed in the research enhances the bonding and compactness of the interface, and has stronger overall corrosion resistance, providing a more efficient and economical new solution for improving the anti-corrosion and corrosion resistance of automotive coatings

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更新日期/Last Update: 2026-03-11