ATO/GO纳米复合材料的制备及性能
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摘要
以氧化石墨烯(GO)为前体,通过氨丙基三乙氧基硅烷(KH550)将氧化锡锑(ATO)锚定到氧化石墨烯片层上,制备得到氧化锡锑-氧化石墨烯纳米复合材料(ATO/GO)。通过高速分散法与水性环氧树脂乳液(AE)共混,制备得到氧化锡锑-氧化石墨烯/水性环氧树脂复合乳液(ATO/GO-AE)。通过XRD,XPS和SEM对其结构进行了表征。考察了ATO/GO含量对水性环氧涂料防腐及抗静电性能的影响。结果表明:随ATO/GO含量的增加,复合涂料表面电阻降低,ATO/GO质量分数等于3.0%时,表面电阻降低至1.0×10~9?以下,达到了抗静电的使用要求,漆膜水蒸汽透过率降低至62.13 g/(m~2·h),具有最低的腐蚀电流(Icorr=3.73×10~(-9) A/cm~2)和最高的腐蚀电压(Ecorr=–0.1993 V),ATO/GO的防腐效率与AE相比提高了99.95%。
A new ATO/GO nanocomposite was obtained by 3-aminopropyltriethoxysilane(KH550) modified tin antimony oxide(ATO) anchoring on graphene oxide(GO) layers. Then, the resulting ATO/GO nanocomposite was mixed with waterborne epoxy resin emulsion(AE) by high speed dispersion method. The samples were characterized by X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS) and scanning electron microscope(SEM). The effect of ATO/GO content on the anticorrosion and antistatic properties of waterborne epoxy coating was investigated. The results showed that with the increase of ATO/GO content, the surface resistance of composite coating decreased. When the mass fraction of ATO/GO was greater than 3.0%, the surface resistance of composite coating was less than 1.0×109 ?, which could meet the anti-static requirements. The composite coating containing 3.0% mass fraction of ATO/GO exhibited excellent anti-corrosion and antistatic properties. The water vapor transmittance of composite coating decreased to 62.13 g/(m2?h),and the lowest corrosion current density(Icorr) and the maximum corrosion voltage(Ecorr) were 3.73×10-9 A/cm2 and-0.1993 V, respectively. In addition, the anticorrosive efficiency was an improvement of 99.95% compared with that of blank sample.
A new ATO/GO nanocomposite was obtained by 3-aminopropyltriethoxysilane(KH550) modified tin antimony oxide(ATO) anchoring on graphene oxide(GO) layers. Then, the resulting ATO/GO nanocomposite was mixed with waterborne epoxy resin emulsion(AE) by high speed dispersion method. The samples were characterized by X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS) and scanning electron microscope(SEM). The effect of ATO/GO content on the anticorrosion and antistatic properties of waterborne epoxy coating was investigated. The results showed that with the increase of ATO/GO content, the surface resistance of composite coating decreased. When the mass fraction of ATO/GO was greater than 3.0%, the surface resistance of composite coating was less than 1.0×109 ?, which could meet the anti-static requirements. The composite coating containing 3.0% mass fraction of ATO/GO exhibited excellent anti-corrosion and antistatic properties. The water vapor transmittance of composite coating decreased to 62.13 g/(m2?h),and the lowest corrosion current density(Icorr) and the maximum corrosion voltage(Ecorr) were 3.73×10-9 A/cm2 and-0.1993 V, respectively. In addition, the anticorrosive efficiency was an improvement of 99.95% compared with that of blank sample.
引文
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[27]Zhu Ke,Li Xiaorui,Wang Haihua,et al.Electrochemical and anticorrosion behaviors of water dispersible graphene/acrylic modified alkyd resin latex composites coated carbon steel[J].Journal of Applied Polymer Science,2017,134(11):44445-44456.
[2]Jiang Weili(姜卫丽),Liu Ronghua(刘华荣).Study on new type of anti-corrosion wear-resistant anti-static coatings used on rader cover[J].Modern Paint and Finishing(现代涂料与涂装),2011,14(4):34-37.
[3]Zhu Aiping.Preparation of complex of polyaniline and acrylic ester grafting epoxy for anticorrosion and intrinsically antistatic coatings[J].Biochemical&Biophysical Research Communications,2015,14(5):407-410.
[4]Weng Changjian,Chen Yalun,Jhuo Yusian,et al.Advanced antistatic/anticorrosion coatings prepared from polystyrene composites incorporating dodecylbenzenesulfonic acid-doped Si O2@polyaniline core-shell microspheres[J].Polymer International,2013,62(5):774-782.
[5]Wu Liuliu(吴六六),Chen Jianguo(陈建国),Wu Qiufang(吴秋芳).Study on the transparent antistatic coating of nano-ATO[J].Paint and Coating Industry(涂料工业),2004,34(2):13-16.
[6]Liu Xiaoqiang(刘小强),Du Shiguo(杜仕国),Shi Dongmei(施冬梅).Application of nano-ATO particles in polymeric antistatic materisals[J].Packaging Engineering(包装工程),2005,26(3):30-34.
[7]Liu Bin,Wang Yinghan.A novel design for water-based modified epoxy coating with anti-corrosive application properties[J].Progress in Organic Coatings,2014,77(1):219-224.
[8]Abdolreza Mirmohseni,Ali Gharieh,Manouchehr Khorasani.Waterborne acrylic-polyaniline nanocomposite as antistatic coating:preparation and characterization[J].Iranian Polymer Journal,2016,25(12):1-8.
[9]Zhang Yu(张玉),Yang Jianjun(杨建军),Wu Qingyun(吴庆云),et al.Preparation and performance study of reduced silanizedgraphene oxide/waterborne polyurethane composites[J].Fine Chemicals(精细化工),2016,33(3):241-246.
[10]Li Hongfei(李洪飞),Wang Huajin(王华进),Hu Zhongwu(扈中武),et al.Effects of graphene oxide on flame retardancy and smoke suppression of waterborne intumescent fire-resistant coatings[J].Paint and Coating Industry(涂料工业),2015,45(1):1-8.
[11]Wang Sihao,Kang Shaohui,Fang Tehua,et al.Fabrication and mechanical properties of graphene oxide-Al2O3 oxide hybrid material[J].Science of Advanced Materials,2014,6(9):1951-1956.
[12]Yan Xiaoyan,Tong Xili,Zhang Yuefei.Cuprous oxide nanoparticles dispersed on reduced graphene oxide as an efficient electrocatalyst for oxygen reduction reaction[J].Chemical Communications,2012,48(13):1892-1894.
[13]Liu Yu,Hu Yong,Zhou Mojiao,et al.Microwave-assisted nonaqueous route to deposit well-dispersed Zn O nanocrystals on reduced graphene oxide sheets with improved photoactivity for the decolorization of dyes under visible light[J].Applied Catalysis B Environmental,2012,125(33):425-431.
[14]Zhu Ke(朱科),Li Xiaorui(李小瑞),Li Jingyi(李菁熠),et al.Synthesis and anticorrosive properties of waterborne isocyanate functionalized graphene/polyurethane nanocomposite emulsion[J].Journal of Functional Materials(功能材料),2016,47(6):6016-6021.
[15]Qian Rong,Yu Jinhong,Wu Chao,et al.Alumina-coated graphene sheet hybrids for electrically insulating polymer composites with high thermal conductivity[J].RSC Advances.2013,3:17373-17379.
[16]Wang Aolan,Li Xueshan,Zhao Yibo,et al.Preparation and characterizations of Cu2O/reduced graphene oxide nanocomposites with high photo-catalytic performances[J].Powder Technology,2014,261:42-48.
[17]Zhang Jianrong,Gao Lian.Synthesis of antimony-doped tin oxide(ATO)nanoparticles by the nitrateecitrate combustion method[J].Materials Research Bulletin,2004,39:2249-2255.
[18]Wang Yude,Chen Ting.Nonaqueous and template-free synthesis of Sb doped Sn O2 microspheres and their application to lithium-ion battery anode[J].Electrochimca Acta,2009,54:3510-3515.
[19]Yu Zongxue,Di Haihui,Ma Yu,et al.Fabrication of graphene oxide-alumina hybrids to reinforce the anti-corrosion performance of composite epoxy coatings[J].Applied Surface Science,2015,351:986-996.
[20]Zhou Xiaosi,Wan Lijun,Guo Yuguo.Binding Sn O2 nanocrystals in nitrogen-doped graphene sheets as anode materials for lithium-ion batteries[J].Advanced Materials,2013,25:2152-2157.
[21]Liang Junfei,Cai Zhi,Tian Yu,et al.Deposition Sn O2/nitrogendoped graphene nanocomposites on the separator:A new type of flexible electrode for energy storage devices[J].Acs Applied Materials&Interfaces,2013,5(22):12148-12155.
[22]Wang Xi,Cao Xinqiang,Bourgeois Laure,et al.Lithium ion batteries:N-doped graphene-Sn O2 sandwich paper for highperformance lithium-ion batteries[J].Advanced Functional Materials,2012,22(13):2682-2690.
[23]Li Ying,Wang Jianxin,Feng Bo,et al.Synthesis and characterization of antimony-doped tin oxide(ATO)nanoparticles with high conductivity using a facile ammonia-diffusion co-precipitation method[J].Journal of Alloys and Compounds,2015,643:37-42.
[24]Pashupati Pokharel,Dai Soo Lee.High performance polyurethane nanocomposite films prepared from a masterbatch of graphene oxide in polyether polyol[J].Chemical Engineering Journal,2014,253:356-365.
[25]Zhang Libin,Wang Jinqing,Wang Honggang,et al.Preparation,mechanical and thermal properties of functionalized graphene/polyimide nanocomposites[J].Composites:Part A,2012,43:1537-1545.
[26]Wang Xin,Xing Weiyi,Song Lei,et al.Preparation of UV-curable functionalized graphene/polyurethane acrylate nanocomposite with enhanced thermal and mechanical behaviors[J].Reactive&Functional Polymers,2013,73:854-858.
[27]Zhu Ke,Li Xiaorui,Wang Haihua,et al.Electrochemical and anticorrosion behaviors of water dispersible graphene/acrylic modified alkyd resin latex composites coated carbon steel[J].Journal of Applied Polymer Science,2017,134(11):44445-44456.