Effects of N-alkylation on anticorrosion performance of doped polyaniline/epoxy coating

作     者：Suyun Liu Li Liu Ying Li Fuhui Wang Suyun Liu;Li Liu;Ying Li;Fuhui Wang

作者机构：Shenyang National Laboratory for Materials ScienceInstitute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and EngineeringUniversity of Science and Technology of ChinaShenyang 110016China Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education)School of Material Science and EngineeringNortheastern UniversityShenyang 110819China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2020年第39卷第4期

页      面：48-55页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51622106 and 51871049) 

主　　题：Polyaniline Coating Modification Al alloy Anticorrosive property 

摘      要：N-alkylation of sulfosalicylic acid-doped polyaniline(PANI-SSA)was used to promote the anticorrosion performance of PANI-SSA/epoxy coating for 5083 Al ***-SSA was modified with C5H11Br and C12H25Br in polar solvents IPA(isopropanol)and DMF(dimethylformamide),and then characterized by FTIR,XPS and sedimentation *** showed that alkanes were successfully linked onto the PANI-SSA *** compatibility between N-alkylated PANI-SSA and epoxy/xylene solution was *** results proved a better dispersion performance of N-alkylated PANI-SSA in epoxy coatings,with less holes and *** protection of the epoxy coatings incorporating PANI-SSA and N-alkylated PANI-SSA on 5083 Al alloy was studied by EIS and adhesion measurements in 3.5%NaCl *** turned out that the epoxy coating including C12H25Br-modified PANI-SSA in DMF has yielded the highest values of impedance modulus and best protective properties.