电镀与涂饰

2025, 11, v.44 119-124

无溶剂聚硅氧烷涂层的制备及防腐性能研究

卢桂峰¹ 张诗洋² 李西营³ 姚忠平⁴ 徐元清³ 樊广燕¹ 李勋华¹ 冯莹¹ 曹文凯² 谢丽艳¹ 霍文强¹ 马恒印¹ 李璐¹ 李伟华²

1.开封夸克新材料有限公司 2.河南省科学院化学研究所 3.河南大学 4.哈尔滨工业大学

基金项目(Foundation): 河南省中原英才计划(244300510005); 河南省科技研发计划联合基金青年科学家项目(235200810087)

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DOI: 10.19289/j.1004-227x.2025.11.017

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摘要：

[目的]无溶剂聚硅氧烷涂料凭借其独特的分子结构和环境友好特性，成为新一代防腐蚀材料的研发焦点。[方法]制备了3种硅含量不同的聚硅氧烷涂料，利用傅里叶变换红外光谱(FTIR)、扫描电镜(SEM)、能谱(EDS)、X射线衍射(XRD)、热重分析(TGA)等手段对其微观结构和化学组成进行了表征，并对性能进行了对比测试。[结果]3种聚硅氧烷涂层在经历了盐雾暴露(1 000 h)、5%硫酸浸泡(30 d)、5%氯化钠溶液浸泡(30 d)、湿热测试(1 000 h)及冷热循环(15轮)后均保持结构完整。高硅含量聚硅氧烷涂层虽提升了耐候性，却削弱了附着力与耐碱性，低硅含量涂层则反之，中硅含量涂层的这3项性能均居中。[结论]硅含量不同的无溶剂聚硅氧烷涂料各有优劣，适用于不同的防腐蚀应用场景。

关键词： 聚硅氧烷; 涂层; 防腐蚀; 硅含量;

Abstract：

[Objective] Solvent-Free polysiloxane coatings have emerged as a research focus for next-generation anticorrosion materials due to their unique molecular structure and environmental friendliness. [Method] Three polysiloxane coatings with different silicon contents were prepared. Their microstructure and chemical composition were characterized by Fourier-transform infrared spectroscopy(FTIR), scanning electron microscopy(SEM), energydispersive spectroscopy(EDS), X-ray diffraction(XRD), and thermogravimetric analysis(TGA), followed by comparative performance testing. [Result] All three polysiloxane coatings maintained structural integrity after salt spray exposure(1 000 hours), immersion in 5% H_2SO₄ or NaCl solution(30 days), damp-heat testing(1 000 hours), and thermal cycling(15 cycles). High-silicon polysiloxane coatings showed improved weatherability but reduced adhesion and alkali resistance, while low-silicon coatings exhibited the opposite behavior. Medium-silicon coatings displayed intermediate performance in all three aspects. [Conclusion] Solvent-free polysiloxane coatings with different silicon contents each have their own advantages and disadvantages, making them suitable for different anticorrosion applications.

KeyWords： polysiloxane; coating; anticorrosion; silicon content;

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参考文献

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基本信息:

DOI：10.19289/j.1004-227x.2025.11.017

中图分类号:TG174.4

引用信息:

[1]卢桂峰,张诗洋,李西营,等.无溶剂聚硅氧烷涂层的制备及防腐性能研究[J].电镀与涂饰,2025,44(11):119-124.DOI:10.19289/j.1004-227x.2025.11.017.

基金信息:

河南省中原英才计划(244300510005); 河南省科技研发计划联合基金青年科学家项目(235200810087)

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