静电纺丝制备Tb-PEG+Eu-PEG/PANI/PAN荧光导电相变三功能复合纤维
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摘要
以聚丙烯腈(PAN)为载体基质、以铕-聚乙二醇(Eu-PEG)和铽-聚乙二醇(Tb-PEG)为相变荧光材料,加入掺杂的导电聚苯胺(PANI),采用静电纺丝技术制得Tb-PEG+Eu-PEG/PANI/PAN复合纤维.采用扫描电子显微镜(SEM)、荧光光谱(FL)仪、差示扫描量热(DSC)仪及宽频介电松驰谱(BDS)仪等方法对相变荧光导电复合纤维的性能进行分析.研究结果表明,复合纤维具备良好的荧光、相变及导电性能.在294 nm紫外光激发下,通过调节Tb-PEG和Eu-PEG的质量比可调节复合纤维的发光强度和颜色,同时复合纤维的相变温度在54～67℃之间.复合纤维的电导率达到10-6S/cm,随着PANI含量的增加,电导率和介电常数增加.通过调节Tb-PEG,Eu-PEG和PANI的比例及PEG的分子量,可以实现复合纤维荧光、导电及相变性能的可控调整.
Luminescent-electrical-phase change trifunctionalcomposite fibers based on Tb-polyethylene glycol( PEG) +Eu-PEG/polyaniline( PANI)/polyacrylonitrile( PAN) blends in which Tb-PEG and Eu-PEG act as model luminescence-phase change material,PANI acts as electrical material and PAN acts as a supporting material,were fabricated by electrospinning. Scanning electron microscopy,IR spectrum,differential scanning calorimetry,fluorescence spectroscopy and broadband dielectric spectroscopy were used to characterize the morphology structure and properties of the composite fibers. The results indicate that the composite fibers possess excellent photoluminescence,thermal energy storage and electrical conduction. The emitting color of the luminescent composite fibers can be tuned by adjusting the mass ratios of Tb-PEG,Eu-PEG under the excitation of 294 nm single-wavelength ultraviolet light. The melting temperatures of the prepared composite fibers were in the range of 54—67 ℃. The electrical conductivity reaches up to the order of 10-6 S/cm. The dielectric conductivity and constants are slightly increased with increasing of PANI content. The luminescent intensity and electrical conductivity of the composite fibers can be tuned by adjusting the amounts of Tb-PEG,Eu-PEG,PANI and molecular weight of PEG.
Luminescent-electrical-phase change trifunctionalcomposite fibers based on Tb-polyethylene glycol( PEG) +Eu-PEG/polyaniline( PANI)/polyacrylonitrile( PAN) blends in which Tb-PEG and Eu-PEG act as model luminescence-phase change material,PANI acts as electrical material and PAN acts as a supporting material,were fabricated by electrospinning. Scanning electron microscopy,IR spectrum,differential scanning calorimetry,fluorescence spectroscopy and broadband dielectric spectroscopy were used to characterize the morphology structure and properties of the composite fibers. The results indicate that the composite fibers possess excellent photoluminescence,thermal energy storage and electrical conduction. The emitting color of the luminescent composite fibers can be tuned by adjusting the mass ratios of Tb-PEG,Eu-PEG under the excitation of 294 nm single-wavelength ultraviolet light. The melting temperatures of the prepared composite fibers were in the range of 54—67 ℃. The electrical conductivity reaches up to the order of 10-6 S/cm. The dielectric conductivity and constants are slightly increased with increasing of PANI content. The luminescent intensity and electrical conductivity of the composite fibers can be tuned by adjusting the amounts of Tb-PEG,Eu-PEG,PANI and molecular weight of PEG.
引文
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[5]Sundaray B.,Choi A.,Park Y.W.,Synth.Met.,2010,160,984-988
[6]Zhao Y.Y.,Zhang Z.M.,Yu L.M.,Tang Q.W.,Synth.Met.,2016,212,84-90
[7]Im J.S.,Kim J.G.,Lee S.H.,Lee Y.S.,Colloids.Surf.A,2010,364,151-157
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[10]Li W.Z.,Tao Y.,An G.H.,Yan P.F.,Li Y.X.,Li G.M.,Dyes.Pigm.,2017,146,47-53
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[13]Yu H.Q.,Li T.,Chen B.J.,Wu Y.B.,Li Y.,J.Colloid Interface Sci.,2013,400,175-180
[14]Verlan V.I.,Lovu M.S.,Culeac I.,Nistor Y.,Turta C.I.,Zubareva V.E.,J.Non-Cryst.Solids,2011,357,1004-1007
[15]Rotiershtein D.M.,Punts L.N.,Lyssenko K.A.,Taidakov I.V.,Varaksina E.A.,Minyaev M.E.,Gerasin V.A,Guseva M.A.,Vinogradov A.A.,Savchenko M.S.,Nifant’ev I.E.,New J.Chem.,2017,41,13663-13672
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[17]Li W.Z.,Tao Y.,An G.H.,Yan P.F.,Li Y.X.,Li G.M.,Dyes.Pigments,2017,146,47-53
[18]Xue J.J.,Xie J.W.,Liu W.Y.,Xia Y.N.,Acc.Chem.Res.,2017,50,1976-1987
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[20]Shi Q.S.,Zhao Y.N.,Zhang M.C.,Jin X.Y.,Liu Y.C.,Yang M.S.,Chem.J.Chinese Universities,2015,36(9),1807-1812(师奇松,赵祎宁,张鸣春,靳昕怡,刘彦池,杨明山.高等学校化学学报,2015,36(9),1807-1812)
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[23]Sheng S.J.,Ma Q.L.,Dong X.T.,Lv N.,Wang J.X.,Yu W.S.,Liu G.X.,Luminescence,2015,30,26-31
[24]Shi Q.S.,Zhao Y.X.,Hu B.,Fu Y.L.,Liang Y.R.,Xie Y.L.,Mater.Lett.,2017,208,3-6
[25]Ma Q.L.,Wang J.X.,Dong X.T.,Yu W.S.,Liu G.X.,Chem.Eng.J.,2013,222,16-22
[26]Lun K.,Ma Q.L.,Yang M.,Dong X.T.,Yang Y.,Wang J.X.,Yu W.S.,Liu G.X.,Chem.Eng.J.,2015,279,231-240
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[28]Ma Q.L.,Wang J.X.,Dong X.T,Yu W.S.,Liu G.X.,Adv.Funct.Mater.,2015,25,2436-2443