文章摘要
李玉峰,李继玉,李怀阳,祝晶晶,高晓辉.磺化聚苯胺的制备及与硅树脂涂层的防腐蚀性能[J].精细化工,2019,36(6):
磺化聚苯胺的制备及与硅树脂涂层的防腐蚀性能
Preparation and Corrosion Resistance of Sulfonated Polyaniline/Silicone Resin Coatings
投稿时间:2018-07-12  修订日期:2019-01-20
DOI:
中文关键词: 聚苯胺  磺化  硅树脂  防腐蚀
英文关键词: polyaniiline  sulfonated  silicone  anticorrosion
基金项目:黑龙江省省属高等学校基本科研业务费科研项目(135209214,135209206)
作者单位E-mail
李玉峰 齐齐哈尔大学 lyf1170@163.com 
李继玉 齐齐哈尔大学  
李怀阳 齐齐哈尔大学  
祝晶晶 齐齐哈尔大学  
高晓辉 齐齐哈尔大学  
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中文摘要:
      以十二烷基硫酸钠(SDS)和木质素磺酸钠(LGS)为掺杂剂,通过化学氧化法合成了两种磺化聚苯胺(PANI-SDS和PANI-LGS),并将合成的磺化PANI混入溶胶-凝胶法制备的硅树脂(SiR)中,刷涂在Q235钢表面制备了复合防腐蚀涂层。采用FTIR表征了磺化PANI的结构;对比了PANI-LGS和PANI-SDS的基本性能,考察了SiR、PANI-SDS/SiR和PANI-LGS/SiR复合涂层的耐水性、附着力、机械性能及防腐蚀性能,并分析了复合涂层的防腐蚀机理。结果表明:制备的PANI-LGS/SiR复合涂层疏水性能较好,接触角达到113.0o,吸水率仅为7.58%。电化学测试结果表明,该复合涂层对Q235钢具有良好的防腐蚀性能,腐蚀速率为5.56×10-3 mm/a,复合涂层是通过物理屏蔽和阳极保护作用实现对金属的腐蚀防护的。
英文摘要:
      Two kinds of sulfonated polyaniline (PANI-SDS, PANI-LGS) were synthesized by chemical oxide method with sodium dodecyl sulfate (SDS) and sodium lignosulfonate (LGS) as dopant, followed by mixed with silicone resin (SiR) prepared by gel-gel method, and then coated on the surface of Q235 steel to prepare composite aniticorrosion coatings. The structures of sulfonated PANI were characterized by FTIR, and the basic properties of PANI-SDS and PANI-LGS were compared. The hydrophobicity, adhesion, mechanical properties and anticorrosion properties of SiR, PANI-SDS/SiR and PANI-LGS/SiR composite coatings were investigated, and the anticorrosion mechanism of the composite coating was described. The results showed that PANI-LGS/SiR composite coating had better hydrophobic property. The water contact angle of the coating was 113.0°, and the water absorption was only 7.58%. Electrochemical test results showed that the composite coating had better corrosion resistance to Q235 steel. The corrosion rate was 5.56×10-3 mm/a. The metal corrosion is protected by the effect of physical barrier and anodic protection of the composite coatings.
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