超疏水聚苯胺用于提高丝光蜡涂层的耐腐蚀性研究  

Study on the Corrosion Resistance of Superhydrophobic Polyaniline Coating on Mercerized Wax

作　　者：乔景文 王梓懿 郭玉高[1] Qiao Jingwen;Wang Ziyi;Guo Yugao(School of Chemical Engineering and Technology,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学化学工程与技术学院,天津300387

出　　处：《涂料工业》2023年第1期9-15,共7页Paint & Coatings Industry

摘　　要：通过原位聚合法制备了十二烷基苯磺酸钠(SDBS)与硫酸共同掺杂的超疏水聚苯胺复合材料,使用紫外、红外以及扫描电镜对材料进行分析,同时优化其合成条件,并将其与丝光蜡混合制备成复合涂料,测试了涂层在酸性环境下的耐腐蚀性。结果表明:在室温条件下,当SDBS浓度为0.025 mol/L、pH<7,反应3 h,合成的超疏水聚苯胺水接触角>150°,达到超疏水的水平。当超疏水聚苯胺的加入量为0.75%时,涂层的腐蚀电位为195.88 mV,腐蚀电流为2.16μA/cm2,防腐蚀效率高达99.07%,具有比纯蜡涂层更加优良的耐腐蚀性。The superhydrophobic polyaniline composites doped with sodium dodecyl benzene sulfonic acid and sulfuric acid were prepared by in-situ polymerization. Ultraviolet and visible spectrophotometry,infrared absorption spectrometry and scanning electron microscopy were used to analyze the material,and the synthesis conditions were optimized.The composite coatings were mixed with mercerizing wax to prepare the corrosion resistance of the coatings in acidic environment. The results showed that at room temperature,SDBS was0. 025 mol/L and pH <7,continuous reaction for 3 hours the water contact angle of the synthesized superhydrophobic polyaniline was greater than 150°. The results showed that when the amount of superhydrophobic polyaniline was 0. 75%,the corrosion potential of the coatings was 195. 88 mV(vs. SCE),the corrosion current was 2. 16 μA/cm2,the anti-corrosion efficiency was up to 99. 07%,which owned better corrosion resistance than pure wax coatings.

关 键 词：超疏水 聚苯胺 丝光蜡 涂层 防腐蚀 

分 类 号：TQ633.5[化学工程—精细化工]