二氧化钛包覆水性铝颜料的制备及表征
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摘要
以钛酸丁酯为原料,采用二氧化钛包覆法制备了水性铝颜料,研究了制备条件对包覆效果的影响规律,并借助X线衍射和傅里叶红外光谱对包覆机理进行了探索.扫描电子显微镜、光学显微镜、多角度分光光度和耐腐蚀性能测试表明,包覆介质的水含量及pH对WBAP性能影响很大,包覆介质水含量在12mL左右,pH为6.5左右时,钛酸丁酯的水解产物可均匀的包覆到铝粉表面,形成致密的包覆层,对铝粉起到保护作用.
The titanium dioxide encapsulated waterborne aluminum pigments were prepared by using butyl titanate as precursor.X-ray diffraction(XRD)and Fourier transformation infrared results showed the coating mechanism.The results of scanning electron microscopy,optical microscopy,multi-angle spectrometric test and corrosion resistance test proved that control pH of encapsulated media at about 6.5in isopropyl alcohol/water medium,the diaspore on aluminum flakes surface can react with TiO_2 platelet which came from hydrolysis of butyl titanate,to make the titanium dioxide sol-gel film formed on the aluminum flakes surface.
The titanium dioxide encapsulated waterborne aluminum pigments were prepared by using butyl titanate as precursor.X-ray diffraction(XRD)and Fourier transformation infrared results showed the coating mechanism.The results of scanning electron microscopy,optical microscopy,multi-angle spectrometric test and corrosion resistance test proved that control pH of encapsulated media at about 6.5in isopropyl alcohol/water medium,the diaspore on aluminum flakes surface can react with TiO_2 platelet which came from hydrolysis of butyl titanate,to make the titanium dioxide sol-gel film formed on the aluminum flakes surface.
引文
[1]陈军,皮丕辉,蔡智奇,等.包覆型铝粉颜料在水性涂料中的应用[J].电镀与涂料,2010,30(1):71-74.CHEN J,PI P H,CAI Z Q,et al.Application of encapsulated aluminum pigments to waterborne coating[J].Electroplating&Finishing,2010,30(1):71-74.
[2]Silberline有限公司.铝粉颜料的应用领域[J].涂料工业,1995(2):34-35.
[3]LIU H YE H Q,TANG X D.Aluminum pigment encapsulated by in situ copolymerization of styrene and malefic acid[J].Applied Surface Science,2007,254:616-620.DOI:10.1016/j.apsusc.2007.06.047.
[4]LIU H,YE H Q,ZHANG Y C,et al.Preparation and characterization of poly(trimethylolpropane triacrylate)/flaky aluminum composite particle by in situ polymerization[J].Dyes Pigments,2008,79:236-241.DOI:10.1016/j.dyepig.2008.03.001.
[5]LI L J,PI P H,WEN X F,et al.Optimization of sol-gel coatings on the surface of aluminum pigments for corrosion protection[J].Corrosion Science,2008,50:795-803.DOI:10.1016/J.corsci.2007.11.002.
[6]WANG A L,GE C Q,YIN H B,et al.Evolution of binary Fe2O3/SiO2coating layers on the surfaces of aluminum flakes and the pigmentary performances[J].Powder Technology,2012,221:306-311.DOI:10.1016/j.powtec.2012.01.018.
[7]LI L J,PI P H,WEN X F,et al.Aluminum pigments encapsulated by inorganic-organic hybrid coatings and their stability in alkaline aqueous media[J].Journal Of Coatings Technology Research,2008,5(1):77-83.DOI:10.1007/j.issn.11998-007-9053-9.
[8]MA Z L,WEI H M,LI C C,et al.Silica sol–gel anchoring on aluminum pigments surface for corrosion protection based on aluminum oxidized by copper ammonia complex ion[J].Dyes And Pigments,2015,113:730-736.DOI:10.1016/j.dyepig.2014.10.012.
[9]黄舒丽.片状铝粉表面多层包覆性能的研究[D].湖南:中南大学,2010.
[10]曾贤成,侯立松.Ti(OC4H9)4水解过程的粘度控制[J].过程工程学报,2002,2(5):435-437.
[11]曹魁.三维花状薄水铝石的合成与表征[J].西安工业大学学报,2009,29:156-158.DOI:10.16185/j.issn.1000-5714.CAO K.Synthesis and Characterization of 3DFlowerlike Boehmite(AlOOH)Architectures[J].Journal of Xi'an Technological University,2009,29:156-158.DOI:10.16185/j.issn.1000-5714.
[12]MOHAMED F N,ASMA M,NOOMEN M,et al.TiO2modified by salicylic acid as a photocatalyst for the degradation of monochlorobenzene via pickering emulsion way[J].Journal Of Photochemistry And Photobiology A:Chemisty,2013,251:10-17.DOI:10.1016/j.photochem.2014.10.012.
[13]GOLUBKO N V,YANOVSKAYA M I,ROMM P I.Hydrolysis of titanium alkoxides:thermochemical,electron microscopy,saxs studies[J].Journal Of Sol-Gel Science And Technology,2001,20:245-262.DOI:10.1023/j.issn.S1008769918083.
[14]PARKS A.The isoelectric point of solid oxides,solid hydroxides,and aqueous hydroxo complex systems[J].Chemical Review,1964,65(2):177-196.DOI:10.1021/j.issn.cr60234a002.
[15]FU X A,QUTUBUDDIN S.Synthesis of titania-coated silica nanoparticles using ono-ionic water-in-oil[J].Collids And Surface,2001,178:151-156.DOI:10.1016/j.issn.S0927-7757(00)00703-2.
[2]Silberline有限公司.铝粉颜料的应用领域[J].涂料工业,1995(2):34-35.
[3]LIU H YE H Q,TANG X D.Aluminum pigment encapsulated by in situ copolymerization of styrene and malefic acid[J].Applied Surface Science,2007,254:616-620.DOI:10.1016/j.apsusc.2007.06.047.
[4]LIU H,YE H Q,ZHANG Y C,et al.Preparation and characterization of poly(trimethylolpropane triacrylate)/flaky aluminum composite particle by in situ polymerization[J].Dyes Pigments,2008,79:236-241.DOI:10.1016/j.dyepig.2008.03.001.
[5]LI L J,PI P H,WEN X F,et al.Optimization of sol-gel coatings on the surface of aluminum pigments for corrosion protection[J].Corrosion Science,2008,50:795-803.DOI:10.1016/J.corsci.2007.11.002.
[6]WANG A L,GE C Q,YIN H B,et al.Evolution of binary Fe2O3/SiO2coating layers on the surfaces of aluminum flakes and the pigmentary performances[J].Powder Technology,2012,221:306-311.DOI:10.1016/j.powtec.2012.01.018.
[7]LI L J,PI P H,WEN X F,et al.Aluminum pigments encapsulated by inorganic-organic hybrid coatings and their stability in alkaline aqueous media[J].Journal Of Coatings Technology Research,2008,5(1):77-83.DOI:10.1007/j.issn.11998-007-9053-9.
[8]MA Z L,WEI H M,LI C C,et al.Silica sol–gel anchoring on aluminum pigments surface for corrosion protection based on aluminum oxidized by copper ammonia complex ion[J].Dyes And Pigments,2015,113:730-736.DOI:10.1016/j.dyepig.2014.10.012.
[9]黄舒丽.片状铝粉表面多层包覆性能的研究[D].湖南:中南大学,2010.
[10]曾贤成,侯立松.Ti(OC4H9)4水解过程的粘度控制[J].过程工程学报,2002,2(5):435-437.
[11]曹魁.三维花状薄水铝石的合成与表征[J].西安工业大学学报,2009,29:156-158.DOI:10.16185/j.issn.1000-5714.CAO K.Synthesis and Characterization of 3DFlowerlike Boehmite(AlOOH)Architectures[J].Journal of Xi'an Technological University,2009,29:156-158.DOI:10.16185/j.issn.1000-5714.
[12]MOHAMED F N,ASMA M,NOOMEN M,et al.TiO2modified by salicylic acid as a photocatalyst for the degradation of monochlorobenzene via pickering emulsion way[J].Journal Of Photochemistry And Photobiology A:Chemisty,2013,251:10-17.DOI:10.1016/j.photochem.2014.10.012.
[13]GOLUBKO N V,YANOVSKAYA M I,ROMM P I.Hydrolysis of titanium alkoxides:thermochemical,electron microscopy,saxs studies[J].Journal Of Sol-Gel Science And Technology,2001,20:245-262.DOI:10.1023/j.issn.S1008769918083.
[14]PARKS A.The isoelectric point of solid oxides,solid hydroxides,and aqueous hydroxo complex systems[J].Chemical Review,1964,65(2):177-196.DOI:10.1021/j.issn.cr60234a002.
[15]FU X A,QUTUBUDDIN S.Synthesis of titania-coated silica nanoparticles using ono-ionic water-in-oil[J].Collids And Surface,2001,178:151-156.DOI:10.1016/j.issn.S0927-7757(00)00703-2.