第44卷第11期 2014年11月
涂料工业
PAINT&COATINGS INDUSTRY
无机片状颜料负载聚苯胺的防腐蚀研究
赵珂（上海开林造漆厂，上海201707）
Vol.44No.11 Nov.2014
摘要：采用原位聚合法分别在玻璃鳞片和组云母表面负载聚苯胺，合成了玻璃鳞片聚苯胺复合材料（简称PANI-glass）和云母粉聚苯胺复合材料（简筒称PANI-sericite）；利用红外光谱、场发射扫描电镜、热失质量分析和X射线衍射等手段对复合材料表面特性进行表征，结果显示2种颜料表面均吸附有纳米聚苯胺，玻璃鳞片极性表面负载更多聚苯胺：同时考察了复合材料在改性环氧涂料中的防腐蚀行为，电化学数据和盐雾测试结果显示，PANI-glass提高了环氧涂层的屏蔽效应和防腐性能。
关键词：聚苯胺；原位聚合；玻璃片：防腐涂料
中图分类号：TQ630.4*3
文献标识码：A
文章编号：0253-4312(2014)11-0011-07
AnticorrosivePerformanceofInorganic FlakePigmentModified byPolyaniline
ZhaoKe
(Shanghai Kailin Paint MFG. Co., Shanghai 201707, China)
Abstract:The surface of inorganic pigments (i.e., glass flake and sericite powder) was adsorbed with PANI to prepare PANI-glass and PANI-sericite composites by in situ polymeri-zation method.The surface performance of the PANI-glass and PANI-sericite composites was characterized by Fourier transform infrared spectroscopy,TGA and X-ray diffraction.The mor-phology of the said composites was also investigated by scanning electron microscopy. The re sults showed that the surface of the glass flake could adsorb more PANI due to its polar sur-face.Thecompositeswereapplied in modified epoxy coatingsandtheanticorrosive performance thereof was analyzed. The results via electrochemical corrosion analysis and salt fog testing showed that the modified epoxy coatings pigmented by PANI-glass composite gave more efficiency in corrosion protection for carbon steel compared with PANI-sericite compos-ite.
Key Words:polyaline: in situ polymerization: glass flake; anticorrosive coatings
传统的化工腐蚀场景（如冶炼厂及电厂的烟气脱硫装置，储油储气罐区）中常常会遇到酸性气体腐蚀和电化学腐蚀的共同作用，同时会碰到一些耐温的问题，通常情况下会采用乙烯基或环氧树脂与鳞片颜料复合作为防腐蚀涂料衬里，利用其较好的屏蔽效
应，提供管道的防腐防护，但这类涂层并不能提供钢铁的电化学保护。
聚苯胺是一种具有特殊电化学性能的新型功能材料，在防腐工程中可以作为电化学活性添加剂提供钢铁的电化学保护[1-3]，利用无机粉体进行聚苯胺负
作者简介：赵可(1982一），男，工程师，主要从事聚萃胺及重防扁涂料的研究。
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