Fe_3O_4@SiO_2@IPDI-HEA改性水性有机硅聚氨酯光固化膜的性能
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摘要
以Fe_3O_4纳米粒子为核、丙烯酸酯为壳,通过溶剂热法制备了Fe_3O_4@SiO_2@IPDI-HEA纳米粒子。通过IR、TEM和XRD对其结构进行了表征,通过光差热扫描(photo-DSC)和TGA考察了该纳米粒子对水性有机硅聚氨酯光固化体系性能的影响。结果表明:Fe_3O_4@SiO_2@IPDI-HEA粒子的加入,对体系的光聚合性能没有明显影响,但可明显提高固化膜的耐热性和拉伸强度,当Fe_3O_4@SiO_2@IPDI-HEA的质量分数为1.5%时,固化膜的初始分解温度(T5%)增加了21.9℃,拉伸强度增加了6.9MPa。并且,Fe_3O_4@SiO_2@IPDI-HEA可以赋予光固化膜一定的电磁性能,当频率在0～(1×10~7) Hz内时,其介电常数均在4以上。
Fe_3O_4@SiO_2@IPDI-HEA nanoparticles were prepared by solvothermal method using Fe_3O_4 nanoparticles as cores and acrylate as shells. The obtained nanoparticles were characterized by IR, TEM and XRD. The effect of the nanoparticles on the performances of waterborne polysiloxane-polyurethane photocuring system was studied by photo-DSC and TGA. The results showed that the addition of Fe_3O_4@SiO_2@IPDI-HEA particles had no obvious influence the photopolymerization property of the system, but could significantly improve the heat resistance and tensile strength of the cured film. When the addition amount of Fe_3O_4@Si O_2@IPDI-HEA was 1.5%(mass fraction), the initial decomposition temperature(T5%) of cured film increased by 21.9 ℃, the tensile strength enhanced by 6.9 MPa. Moreover,Fe_3O_4@SiO_2@IPDI-HEA could impart certain electromagnetic properties to the UV-cured film. When the frequency was in the range of 0 to 1×10~7 Hz, the dielectric constants of cured films were above 4.
Fe_3O_4@SiO_2@IPDI-HEA nanoparticles were prepared by solvothermal method using Fe_3O_4 nanoparticles as cores and acrylate as shells. The obtained nanoparticles were characterized by IR, TEM and XRD. The effect of the nanoparticles on the performances of waterborne polysiloxane-polyurethane photocuring system was studied by photo-DSC and TGA. The results showed that the addition of Fe_3O_4@SiO_2@IPDI-HEA particles had no obvious influence the photopolymerization property of the system, but could significantly improve the heat resistance and tensile strength of the cured film. When the addition amount of Fe_3O_4@Si O_2@IPDI-HEA was 1.5%(mass fraction), the initial decomposition temperature(T5%) of cured film increased by 21.9 ℃, the tensile strength enhanced by 6.9 MPa. Moreover,Fe_3O_4@SiO_2@IPDI-HEA could impart certain electromagnetic properties to the UV-cured film. When the frequency was in the range of 0 to 1×10~7 Hz, the dielectric constants of cured films were above 4.
引文
[1]Zhang Jing(张静),Guo Yongliang(郭永亮),Guo Junhong(郭军红),et al.Progress in the study of environmentally friendly uv-curable waterborne coatings[J].China Coatings(中国涂料),2017,32(7):1-6.
[2]Cui Fuhong(崔芙红).Advances in the study of waterborne uvcurable coatings[J].Guangdong Chemical(广东化工),2013,40(10):99-100.
[3]Yu F,Xu X,Lin N,et al.Structural engineering of waterborne polyurethane for high performance waterproof coatings[J].Rsc Advances,2015,5(89):72544-72552.
[4]Xu H,Qiu F,Wang Y,et al.Preparation,mechanical properties of waterborne polyurethane and crosslinked polyurethane-acrylate composite[J].Journal of Applied Polymer Science,2012,124(2):958-968.
[5]Zhang Y,Shao L,Dong D,et al.Enhancement of water and organic solvent resistances of a waterborne polyurethane film by incorporating liquid polysulfide[J].Rsc Advances,2016,6(21):17163-17171.
[6]Liu H,Song J,Shang S,et al.Cellulose nanocrystal/silver nanoparticle composites as bifunctional nanofillers within waterborne polyurethane[J].Acs Applied Materials&Interfaces,2012,4(5):2413-2419.
[7]Wang Yan(王寅),Fu Heqing(傅和青),Yan Caibing(颜财彬),et al.Progress in the study of nanomaterials modified waterborne polyurethane[J].Chemical progress(化工进展),2015,34(2):463-469.
[8]Hou Faqiu(侯发秋),Chen Yongjun(陈永军),Qing Ning(卿宁).Research progress of nano-SiO2 modified waterborne polyurethane[J].Materials Guide(材料导报),2013,27(s1):66-69.
[9]Zhang S,Chen Z,Guo M,et al.Waterborne UV-curable polycarbonate polyurethane nanocomposites based on polydimethylsiloxane and colloidal silica with enhanced mechanical and surface properties[J].Rsc Advances,2014,4(58):30938-30947.
[10]Lv C,Hu L,Yang Y,et al.Waterborne UV-curable polyurethane acrylate/silica nanocomposites for thermochromic coatings[J].Rsc Advances,2015,5(33):25730-25737.
[11]Zhang R,Huang X,Zhong B,et al.Enhanced microwave absorption properties of ferroferric oxide/graphene composites with a controllable microstructure[J].Rsc Advances,2016,6(21):16952-16962.
[12]Chen S,Zhang S,Li Y,et al.Synthesis and properties of novel UV-curable hyperbranched waterborne polyurethane/Fe3O4 nanocomposite films with excellent magnetic properties[J].Rsc Advances,2014,5(6):4355-4363.
[13]Chen S,Zhang S,Tao J,et al.Synthesis and characterization of novel covalently linked waterborne polyurethane/Fe3O4 nanocomposite films with superior magnetic,conductive properties and high latex storage stability[J].Chemical Engineering Journal,2016,286:249-258.
[14]Tian Ailin(田爱林).Synthesis of functional magnetic nanoparticles and application of chiral separation[D].Beijing:Beijing University of Chemical Technology(北京化工大学),2013.
[15]Xiong Jun(熊军),Sun Fang(孙芳),Du Hongguang(杜洪光).Dibutylamine titration for the determination of isocyanate in polyurethane[J].Analysis Laboratory(分析试验室),2007,26(8):73-76.
[16]Habib E,Zhu X X.Photo-calorimetry method optimization for the study of light-initiated radical polymerization of dental resins[J].Polymer,2018,135:178-184.
[2]Cui Fuhong(崔芙红).Advances in the study of waterborne uvcurable coatings[J].Guangdong Chemical(广东化工),2013,40(10):99-100.
[3]Yu F,Xu X,Lin N,et al.Structural engineering of waterborne polyurethane for high performance waterproof coatings[J].Rsc Advances,2015,5(89):72544-72552.
[4]Xu H,Qiu F,Wang Y,et al.Preparation,mechanical properties of waterborne polyurethane and crosslinked polyurethane-acrylate composite[J].Journal of Applied Polymer Science,2012,124(2):958-968.
[5]Zhang Y,Shao L,Dong D,et al.Enhancement of water and organic solvent resistances of a waterborne polyurethane film by incorporating liquid polysulfide[J].Rsc Advances,2016,6(21):17163-17171.
[6]Liu H,Song J,Shang S,et al.Cellulose nanocrystal/silver nanoparticle composites as bifunctional nanofillers within waterborne polyurethane[J].Acs Applied Materials&Interfaces,2012,4(5):2413-2419.
[7]Wang Yan(王寅),Fu Heqing(傅和青),Yan Caibing(颜财彬),et al.Progress in the study of nanomaterials modified waterborne polyurethane[J].Chemical progress(化工进展),2015,34(2):463-469.
[8]Hou Faqiu(侯发秋),Chen Yongjun(陈永军),Qing Ning(卿宁).Research progress of nano-SiO2 modified waterborne polyurethane[J].Materials Guide(材料导报),2013,27(s1):66-69.
[9]Zhang S,Chen Z,Guo M,et al.Waterborne UV-curable polycarbonate polyurethane nanocomposites based on polydimethylsiloxane and colloidal silica with enhanced mechanical and surface properties[J].Rsc Advances,2014,4(58):30938-30947.
[10]Lv C,Hu L,Yang Y,et al.Waterborne UV-curable polyurethane acrylate/silica nanocomposites for thermochromic coatings[J].Rsc Advances,2015,5(33):25730-25737.
[11]Zhang R,Huang X,Zhong B,et al.Enhanced microwave absorption properties of ferroferric oxide/graphene composites with a controllable microstructure[J].Rsc Advances,2016,6(21):16952-16962.
[12]Chen S,Zhang S,Li Y,et al.Synthesis and properties of novel UV-curable hyperbranched waterborne polyurethane/Fe3O4 nanocomposite films with excellent magnetic properties[J].Rsc Advances,2014,5(6):4355-4363.
[13]Chen S,Zhang S,Tao J,et al.Synthesis and characterization of novel covalently linked waterborne polyurethane/Fe3O4 nanocomposite films with superior magnetic,conductive properties and high latex storage stability[J].Chemical Engineering Journal,2016,286:249-258.
[14]Tian Ailin(田爱林).Synthesis of functional magnetic nanoparticles and application of chiral separation[D].Beijing:Beijing University of Chemical Technology(北京化工大学),2013.
[15]Xiong Jun(熊军),Sun Fang(孙芳),Du Hongguang(杜洪光).Dibutylamine titration for the determination of isocyanate in polyurethane[J].Analysis Laboratory(分析试验室),2007,26(8):73-76.
[16]Habib E,Zhu X X.Photo-calorimetry method optimization for the study of light-initiated radical polymerization of dental resins[J].Polymer,2018,135:178-184.