超声波熔接参数对户外服缝口防水性能影响
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摘要
为了提高户外服缝口防水性能并优化超声波熔接工艺参数,采用超声波熔接结合热风压胶工艺、聚氨酯(PU)贴膜防水面料制作防水缝口。以超声波振幅、滚轮压力及其速度为熔接工艺参数设计全因素试验,并以缝口静水压值表征缝口防水性能。通过多元回归和多项式拟合分析熔接参数对缝口防水性能的影响,运用扫描电子显微镜(SEM)观测防水缝口横截面微观形貌。结果表明:高防水性能熔接效果的最佳参数配置为超声波振幅95%～100%、滚轮压力0.2～0.3 MPa、滚轮速度1～5m/min;静水压与超声波振幅及滚轮压力在一定范围内存在显著线性关系,与滚轮速度存在二元回归关系;从微观形貌发现熔接界面从纤维层开始熔接,参数设置合理时PU膜也会熔接。
Polyurethane(PU)laminated waterproof fabrics were used to produce waterproof seams combining ultrasonic welding with thermo-adhesive technology to improve the waterproof performance of outdoor clothing and optimize ultrasonic welding processing parameters.The ultrasonic amplitude,roller pressure and roller speed were investigated in full factor experiments.The hydrostatic pressure was tested and the effects of welding parameters on seam waterproof performance were analyzed using multiple regressions and polynomial fitting.The micro-morphology of waterproof seam cross section was observed by scanning electron microscope(SEM).The results indicate that the optimal parameter setting for high waterproof performance is ultrasonic amplitude of 95%-100%,roller pressure of 0.2-0.3 MPa and roller speed of 1-5 m/min.There is a significant linear relationship in a certain range between hydrostatic pressure and ultrasonic amplitude or roller pressure,while a binary regression relationship between hydrostatic pressure and roller speed.It can be found that interface welding starts from fiber layer and PU lamination can be welded when the parameters are set optimally based on the microstructure observation of waterproof seam.
Polyurethane(PU)laminated waterproof fabrics were used to produce waterproof seams combining ultrasonic welding with thermo-adhesive technology to improve the waterproof performance of outdoor clothing and optimize ultrasonic welding processing parameters.The ultrasonic amplitude,roller pressure and roller speed were investigated in full factor experiments.The hydrostatic pressure was tested and the effects of welding parameters on seam waterproof performance were analyzed using multiple regressions and polynomial fitting.The micro-morphology of waterproof seam cross section was observed by scanning electron microscope(SEM).The results indicate that the optimal parameter setting for high waterproof performance is ultrasonic amplitude of 95%-100%,roller pressure of 0.2-0.3 MPa and roller speed of 1-5 m/min.There is a significant linear relationship in a certain range between hydrostatic pressure and ultrasonic amplitude or roller pressure,while a binary regression relationship between hydrostatic pressure and roller speed.It can be found that interface welding starts from fiber layer and PU lamination can be welded when the parameters are set optimally based on the microstructure observation of waterproof seam.
引文
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[17]闵亚能.实验设计(DOE)应用指南[M].北京:机械工业出版社,2011:126-129.
[18]于伟东.纺织材料学[M].北京:中国纺织出版社,2006:140-156.
[2]ARMAGAN O G,KARAKAS H.A study of performance and comfort properties of waterproof breathable laminated knitted fabrics[J].Tekstil,2008,57(12):641-650.
[3]KIM H K,KIM S J,LEE H S,et al.Mechanical and barrier properties of poly(lactic acid)films coated by nanoclay-ink composition[J].Journal of Applied Polymer Science,2013,127(5):3823-3829.
[4]AGEORGES C,YE L,HOU M.Advances in fusion bonding techniques for joining thermoplastic matrix composites:Areview[J].Composites Part A:Applied Science&Manufacturing,2001,32(6):839-857.
[5]GHOSH S,REDDY R.Ultrasonic sealing of polyester and spectra fabrics using thermos-plastic properties[J].Journal of Applied Polymer Science,2009,113(2):1082-1089.
[6]BAHADIR S K,KALAOLU F,JEVNIK S.The use of hot air welding technologies for manufacturing e-textile trasmission lines[J].Fibers and Polymers,2015,16(6):1384-1394.
[7]KAYAR M,MISTIK S I.Effect of fiber type and polyethylene film on mechanical properties of ultrasonically bonded multilayer nonwoven fabrics[J].Journal of Textile&Apparel,2014,24(1):30-36.
[8]DENNARD J.Knitting/Apparel[J].Textile World,2005(11/12):52.
[9]JIANG P Q,LAI Y F,CHEN X S.Seam mechanical properties of polyester fabric welded by ultrasonic sewing machine[J].Journal of Textile Research,2013,34(10):127-130.
[10]GUTNIK V G,GORBACH N V,DASHKOV A V.Some characteristics of ultrasonic welding of polymers[J].Fiber Chemistry,2002,34(6):426-432.
[11]VIOLLEAU E.Ultrasonic welding for composite materials[J].Jec Composites Magazine,2014(87):92-94.
[12]SHI W H,LITTLE T.Mechanisms of ultrasonic joining of textile materials[J].International Journal of Clothing Science&Technology,2000,12(5):331-350.
[13]KHMELEV V N,SLIVIN A N,LEHR A V,et al.Theoretical investigations of continuous ultrasonic seam welding of thermoplastic polymers and fabrics[C]//Micro/Nanotechnologies and Electron Devices(EDM),2010International Conference and Seminar.IEEE,2010:341-344.
[14]SHAKIL M,TARIQ N H,AHMAD M,et al.Effect of ultrasonic welding parameters on microstructure and mechanical properties of dissimilar joints[J].Mater Design,2014,55:263-273.
[15]CABON D.Investigating the possibility of constructing different seam types for clothing using ultrasonic[J].International Journal of Clothing Science&Technology,2013,25(25):90-98.
[16]THOMAS O,YANNICK B,ROL Z,et al.Lamination of polyethylene composite films by ultrasonic welding:Investigation of peel behavior and identification of optimum welding parameters[J].Journal of Applied Polymer Science,2014,131(10):1-98.
[17]闵亚能.实验设计(DOE)应用指南[M].北京:机械工业出版社,2011:126-129.
[18]于伟东.纺织材料学[M].北京:中国纺织出版社,2006:140-156.