PET表面改性对PVDF/PET膜界面性能及力学性能的影响
|
摘要
用碱液和硅烷偶联剂KH550水解液先后对聚对苯二甲酸乙二醇酯(PET)无纺布进行表面改性处理,以提高聚偏氟乙烯(PVDF)膜与PET支撑层间的界面性能.研究了改性处理条件对PVDF/PET膜的界面黏合性和力学性能的影响,并探讨了界面黏合增强机制.结果表明:水解液中KH550含量较少(≤3%)时,处理时间延长,PET与PVDF膜间的剥离强度增大;水解液中KH550含量较多(>3%)时,处理时间延长,PET与PVDF膜间的剥离强度先增大后减小;PVDF/PET膜的拉伸强度随水解液中KH550用量的增加或处理时间的延长先增大后略减小.研究发现,适当改性处理后,PET纤维的表面粗糙度增大,含氧官能团增多,PET纤维表面的润湿性提高,增强了PVDF膜与PET支撑层间的机械锁合和分子结合力,从而使PVDF/PET膜的界面黏合性显著增强.
In this study, polyethylene terephthalate(PET) nonwovens were surface-modified with an alkali solution and 3-aminoprophyltriethoxysilane(KH550) coupling agent to improve the interfacial property between the polyvinylidene fluoride(PVDF) membrane and PET reinforcement. The effects of the modification conditions on the interfacial adhesion and mechanical properties of the composites were investigated. Further, the interface enhancement mechanism was studied. The results show that at low KH550 concentrations(≤3%), the peel strength between the PVDF and PET increased as treatment time increased; however, at high KH550 concentrations(>3%), the peel strength first increased and then decreased as the treatment time increased. The tensile strength of the PVDF/PET membrane increased and then decreased slightly with increasing KH550 concentration or treatment time. The surface roughness and amount of oxygenous functional groups increased after the modification treatment, which can improve the wettability of the PET surface. The mechanical interlocking and intermolecular force between the PVDF membrane and PET reinforcement were enhanced, and this enhances the interfacial adhesion property of the PVDF/PET membrane.
In this study, polyethylene terephthalate(PET) nonwovens were surface-modified with an alkali solution and 3-aminoprophyltriethoxysilane(KH550) coupling agent to improve the interfacial property between the polyvinylidene fluoride(PVDF) membrane and PET reinforcement. The effects of the modification conditions on the interfacial adhesion and mechanical properties of the composites were investigated. Further, the interface enhancement mechanism was studied. The results show that at low KH550 concentrations(≤3%), the peel strength between the PVDF and PET increased as treatment time increased; however, at high KH550 concentrations(>3%), the peel strength first increased and then decreased as the treatment time increased. The tensile strength of the PVDF/PET membrane increased and then decreased slightly with increasing KH550 concentration or treatment time. The surface roughness and amount of oxygenous functional groups increased after the modification treatment, which can improve the wettability of the PET surface. The mechanical interlocking and intermolecular force between the PVDF membrane and PET reinforcement were enhanced, and this enhances the interfacial adhesion property of the PVDF/PET membrane.
引文
[1]李春霞,王望,刘晶如,等.超支化聚酯/聚对苯二甲酸乙二醇酯复合材料的结构与性能[J].复合材料学报,2014,31(5):1179-1185.Li Chunxia,Wang Wang,Liu Jingru,et al.structure and properties of hyperbranched polyester/poly(ethylene terephthalate)composites[J].Acta Materiae Compositae Sinica,2014,31(5):1179-1185(in Chinese).
[2]秦伟,张志谦,黄玉东,等.等离子体处理对PET纤维/环氧复合材料界面改性的研究[J].复合材料学报,2002,19(4):25-28.Qin Wei,Zhang Zhiqian,Huang Yudong,et al.Study on interfacial property of the PET/epoxy composite treated by cold plasma[J].Acta Materiae Compositae Sinica,2002,19(4):25-28(in Chinese).
[3]Liu X D,Sheng D K,Gao X M,et al.UV-assisted surface modification of PET fiber for adhesion improvement[J].Applied Surface Science,2013,264(1):61-69.
[4]Gupta B S,Reiniati I,Laborie M P G.Surface properties and adhesion of wood fiber reinforced thermoplastic composites[J].Colloids&Surfaces A:Physicochemical&Engineering Aspects,2007,302(1/2/3):388-395.
[5]Qin M L,Kong H J,Yu M H,et al.Improved adhesion performances of aramid fibers with vinyl epoxy via supercritical carbon dioxide modification[J].Materials Science and Engineering,2017,213(1):012041.
[6]Razavizadeh M,Jamshidi M.Adhesion of nitrile rubber to UV-assisted surface chemical modified PET fabric,part II:Interfacial characterization of MDI grafted PET[J].Applied Surface Science,2016,379:114-123.
[7]Rezaei F,Dickey M D,Bourham M,et al.Surface modification of PET film via a large area atmospheric pressure plasma:An optical analysis of the plasma and surface characterization of the polymer film[J].Surface&Coatings Technology,2016,309:371-381.
[8]Xie Y,Pei W,Guo D,et al.Improving adhesion strength between layers of an implantable Parylene-Celectrode[J].Sensors&Actuators A:Physical,2017,260:117-123.
[9]高聪,李敏,王娟,等.化学处理和吸湿水对剑麻纤维及其与树脂界面性能的影响[J].复合材料学报,2013,30(5):21-28.Gao Cong,Li Min,Wang Juan,et al.Effect of chemical treatment and water absorption on properties of sisal fiber and its interface with resin[J].Acta Materiae Compositae Sinica,2013,30(5):21-28(in Chinese).
[10]Baley C,Busnel F,Grohens Y,et al.Influence of chemical treatments on surface properties and adhesion of flax fibre-polyester resin[J].Composites Part A:Applied Science and Manufacturing,2006,37(10):1626-1637.
[11]Lei C,Wang Y,Zia-ud-Din,et al.Enhancing the performance of starch-based wood adhesive by silane coupling agent(KH570)[J].International Journal of Biological Macromolecules,2017,104:137-144.
[12]Li J,Ye FB.Effect of surface modification of Kevlar fibre on friction and wear properties of UHMWPE composites[J].Plastics Rubber&Composites,2010,39(6):264-267.
[13]Carlotti S,Mas A.Improvement of adhesion of PETfibers to rubber by argon oxygen plasma treatment[J].Journal of Applied Polymer Science,2015,69(12):2321-2330.
[14]Trejbal J,KopeckyL,Tesárek P,et al.Impact of surface plasma treatment on the performance of PET fiber reinforcement in cementitious composites[J].Cement&Concrete Research,2016,89:276-287.
[15]普丹丹,王瑞,董余兵,等.表面改性处理对涤纶织物/聚氯乙烯复合材料界面性能的影响[J].纺织学报,2017,38(8):102-107.Pu Dandan,Wang Rui,Dong Yubing,et al.Influence of surface modification on interfacial properties of polyester fabric/polyvinyl chloride composites[J].Journal of Textile Research,2017,38(8):102-107(in Chinese).
[16]Oyman Z O,Tin?er T.Melt blending of poly(ethylene terephthalate)with polypropylene in the presence of silane coupling agent[J].Journal of Applied Polymer Science,2003,89(4):1039-1048.
[17]王伟宏,卢国军.硅烷偶联剂处理玄武岩纤维增强木塑复合材料[J].复合材料学报,2013,30(12):315-320.Wang Weihong,Lu Guojun.The silane coupling agent treatment of basalt fibers reinforced wood-plastic composite[J].Acta Materiae Compositae Sinica,2013,30(12):315-320(in Chinese).
[18]Lopattananon N,Payae Y,Seadan M.Influence of fiber modification on interfacial adhesion and mechanical properties of pineapple leaf fiber-epoxy composites[J].Journal of Applied Polymer Science,2010,110(1):433-443.
[19]Venkatasudhahar M,Velu R,Logesh K.Effect of surface modification and hybridization of coir fiber on mechanical properties of nylon/epoxy hybrid composites[J].International Journal of Mechanical Engineering and Technology,2017,8(8):264-281
[20]Terpi?owski K,Wi?cek A E,Jurak M.Influence of nitrogen plasma treatment on the wettability of polyetheretherketone and deposited chitosan layers[J].Advances in Polymer Technology,2017,37(6):1557-1569.
[2]秦伟,张志谦,黄玉东,等.等离子体处理对PET纤维/环氧复合材料界面改性的研究[J].复合材料学报,2002,19(4):25-28.Qin Wei,Zhang Zhiqian,Huang Yudong,et al.Study on interfacial property of the PET/epoxy composite treated by cold plasma[J].Acta Materiae Compositae Sinica,2002,19(4):25-28(in Chinese).
[3]Liu X D,Sheng D K,Gao X M,et al.UV-assisted surface modification of PET fiber for adhesion improvement[J].Applied Surface Science,2013,264(1):61-69.
[4]Gupta B S,Reiniati I,Laborie M P G.Surface properties and adhesion of wood fiber reinforced thermoplastic composites[J].Colloids&Surfaces A:Physicochemical&Engineering Aspects,2007,302(1/2/3):388-395.
[5]Qin M L,Kong H J,Yu M H,et al.Improved adhesion performances of aramid fibers with vinyl epoxy via supercritical carbon dioxide modification[J].Materials Science and Engineering,2017,213(1):012041.
[6]Razavizadeh M,Jamshidi M.Adhesion of nitrile rubber to UV-assisted surface chemical modified PET fabric,part II:Interfacial characterization of MDI grafted PET[J].Applied Surface Science,2016,379:114-123.
[7]Rezaei F,Dickey M D,Bourham M,et al.Surface modification of PET film via a large area atmospheric pressure plasma:An optical analysis of the plasma and surface characterization of the polymer film[J].Surface&Coatings Technology,2016,309:371-381.
[8]Xie Y,Pei W,Guo D,et al.Improving adhesion strength between layers of an implantable Parylene-Celectrode[J].Sensors&Actuators A:Physical,2017,260:117-123.
[9]高聪,李敏,王娟,等.化学处理和吸湿水对剑麻纤维及其与树脂界面性能的影响[J].复合材料学报,2013,30(5):21-28.Gao Cong,Li Min,Wang Juan,et al.Effect of chemical treatment and water absorption on properties of sisal fiber and its interface with resin[J].Acta Materiae Compositae Sinica,2013,30(5):21-28(in Chinese).
[10]Baley C,Busnel F,Grohens Y,et al.Influence of chemical treatments on surface properties and adhesion of flax fibre-polyester resin[J].Composites Part A:Applied Science and Manufacturing,2006,37(10):1626-1637.
[11]Lei C,Wang Y,Zia-ud-Din,et al.Enhancing the performance of starch-based wood adhesive by silane coupling agent(KH570)[J].International Journal of Biological Macromolecules,2017,104:137-144.
[12]Li J,Ye FB.Effect of surface modification of Kevlar fibre on friction and wear properties of UHMWPE composites[J].Plastics Rubber&Composites,2010,39(6):264-267.
[13]Carlotti S,Mas A.Improvement of adhesion of PETfibers to rubber by argon oxygen plasma treatment[J].Journal of Applied Polymer Science,2015,69(12):2321-2330.
[14]Trejbal J,KopeckyL,Tesárek P,et al.Impact of surface plasma treatment on the performance of PET fiber reinforcement in cementitious composites[J].Cement&Concrete Research,2016,89:276-287.
[15]普丹丹,王瑞,董余兵,等.表面改性处理对涤纶织物/聚氯乙烯复合材料界面性能的影响[J].纺织学报,2017,38(8):102-107.Pu Dandan,Wang Rui,Dong Yubing,et al.Influence of surface modification on interfacial properties of polyester fabric/polyvinyl chloride composites[J].Journal of Textile Research,2017,38(8):102-107(in Chinese).
[16]Oyman Z O,Tin?er T.Melt blending of poly(ethylene terephthalate)with polypropylene in the presence of silane coupling agent[J].Journal of Applied Polymer Science,2003,89(4):1039-1048.
[17]王伟宏,卢国军.硅烷偶联剂处理玄武岩纤维增强木塑复合材料[J].复合材料学报,2013,30(12):315-320.Wang Weihong,Lu Guojun.The silane coupling agent treatment of basalt fibers reinforced wood-plastic composite[J].Acta Materiae Compositae Sinica,2013,30(12):315-320(in Chinese).
[18]Lopattananon N,Payae Y,Seadan M.Influence of fiber modification on interfacial adhesion and mechanical properties of pineapple leaf fiber-epoxy composites[J].Journal of Applied Polymer Science,2010,110(1):433-443.
[19]Venkatasudhahar M,Velu R,Logesh K.Effect of surface modification and hybridization of coir fiber on mechanical properties of nylon/epoxy hybrid composites[J].International Journal of Mechanical Engineering and Technology,2017,8(8):264-281
[20]Terpi?owski K,Wi?cek A E,Jurak M.Influence of nitrogen plasma treatment on the wettability of polyetheretherketone and deposited chitosan layers[J].Advances in Polymer Technology,2017,37(6):1557-1569.