The water-based aluminum triphosphate/graphene oxide composite anticorrosion pigment was prepared by Ball-mill dispersion method, and it was applied to water-based epoxy resin to prepare EP-AlTP/GO nanocomposite coating. AlTP/GO could be evenly dispersed into EP resin which was observed by field emission scanning electron microscopy (FE-SEM). The water absorption test showed that the introduction of graphene oxide improved the water resistance and shielding performance of the coating. The adhesion strength test results showed that aluminum triphosphate improved the adhesion strength of the coating in metal substrate Electrochemical test (Bode) and environmental scanning electron microscopy test (E-SEM) showed that AlTP/GO effectively enhanced the water-based epoxy coating for the shielding effect of corrosion medium and limited the spread of the corrosion reaction. The low frequency impedance was 7.02 x 107 Ω. cm2 after immersion at 3.5 wt. % NaCl aqueous solution 40 days, the metal surface was smooth after salt spray test 400h.The EP-AlTP/GO coating showed excellent anticorrosion performance.
SHU Ke
,
LI Jing-Yi
. Application of Aluminum Triphosphate/Graphene Oxide Nanocomposite in Waterborne Anticorrosive Coating[J]. Paint & Coatings Industry, 2019
, 49(5)
: 45
-50
.
DOI: 10.12020/j.issn.0253-4312.2019.5.45
[1]QURAISHI M A，RAWAT J.Inhibition of mild steel corro-sion by some macrocyclic compounds in hot and concentratedhydrochloric acid[J].Materials Chemistry & Physics, 2002, 73(2):118-122
[2]PATHAK SS，SHARMA A，KHANNA A S.Value addition to waterborne polyurethane resin by silicone modification fordeveloping high performance coating on aluminum alloy[J].Progress in Organic Coatings, 2009, 65(2):206-216
[3]FRAUA，PERNITES R B，ADVINCULA R C.A Conjugatedpolymer network approach to anticorrosion coatings：poly(vinylcarbazole)electrodeposition[J].Industrial & EngineeringChemistry Research, 2010, 49(20):9789-9797
[4] CHANGKC，HSU M H，LU H I.Room-temperature curedhydrophobic epoxy/graphene composites as corrosion inhibitor
[5]for cold-rolled steel[J].[J].Carbon, 2014, 66:144-153
[6]LIUM，MAO X H，ZHU H，et al.Water and corrosion resis-tance of epoxy-acrylic-amine waterborne coatings：Effects of resin molecular weight，polar group and hydrophobic seg-ment[J].Corrosion Science, 2013, 75(7):106-113
[7]吴校彬，付和，青黄洪，等.防腐涂料用水性聚氨酯 -环氧树脂 -丙烯酸酯复合分散液的合成与性能[J].腐蚀科学与防护技术, 2007, 19(4):296-299
[8]SHUIXJ，SHEN Y D，FEI G Q，et al.The effect of nonionic monomer ham on properties of cationic surfactant-freeacrylicalkyd hybrid emulsion[J].Journal of Applied PolymerScience, 2015, 132(5):41406-41414
[9]SABABI M，PAN J，AUGUSTSSON P E，et al.Influence of polyaniline and ceria nanoparticle additives on corrosionprotection of a UV-cure coating on carbon steel[J].CorrosionScience, 2014, 84(3):189-197
[10]袁爱群，房伟，白丽娟，等.第二代无毒活性磷酸盐防腐颜料的研究进展[J].涂料工业, 2008, 38(8):68-71
[11]BERRY V. Impermeability of graphene and its applications[J].[J].Carbon, 2013, 62:1-10
[12]QI K，SUN Y M，DUAN H W，et al. A corrosion-protectivecoating based on a solution-processable polymer-graftedgraphene oxide nanocomposite[J].[J].Corrosion Science, 2015, 98:500-506
[13]LIJY，LI X R，ZHU K，et al.Reinforcement of phosphorylatedgraphene oxide on the anticorrosive properties of waterborneacrylate-epoxy resin coatings[J].Journal of MacromolecularScience，Part A：Pure and Applied Chemistry, 2018, 55(9):649-657
[14]CHEN C L，HE Y，XIAO G Q，et al.Synergistic effect ofgraphene oxide@ phosphate-intercalated hydrotalcite forimproved anti-corrosion and self-healable protection of wa-terborne epoxy coating in salt environments[J].Journal ofMaterials Chemistry C, 2019, (7):2318-2326
[15]朱科，李小瑞，李菁熠，等.水性异氰酸酯改性石墨烯 聚氨酯复合乳液防腐性能研究[J].功能材料, 2016, 47(6):6016-6021
[16]WANG X，XING W Y，SONG L，et al. Preparation of UV-curable functionalized graphenepolyurethane acrylate nano-composite with enhanced thermal and mechanical behaviors[J].[J].Reactive & Functional Polymers, 2013, 73:854-858
[17]POURHASHM S，RASHIDI A，VAEZI M R，et al. Excellent corrosion protection performance of epoxy composite coatingsfilled with amino-silane functionalized graphene oxide[J].[J].Surface & Coatings Technology, 2017, 317:1-9
[18]ZHU K，LI X R，WANG H H，et al. Electrochemical and anti-corrosion behaviors of water dispersible graphene acrylicmodified alkyd resin latex composites coated carbon steel[J].[J].Journal of Applied Polymer Science, 2017, 134:44445-44456
[19]LOVEDAY D，PETERSON P，RODGER B S，Evaluation of organic coatings with electrochemical impedance apectroscopy， part 2：application of eis to coatings[J].[J].JCT Coating Tech, 2004, 1:46-52
[20]GRAY L G，APPLEMAN B R.EIS electrochemical impedance spectroscopy-a tool to predict remaining coating life[J].Journalof Protective Coatings & Linings, 2003, 20(2):66-74
[21]ECCO L，FEDEL M，DEFLORIAN F，et al. Waterborne acrylic paint system based on nanoceria for corrosion protectionof steel[J].[J].Progress in Organic Coatings, 2016, 96:19-25
[22]张丽，霍东霞，刘大壮，等.三聚磷酸铝在水性乳胶涂层中的防锈机理研究[J].腐蚀科学与防护技术, 2004, 16(5):328-330
