底涂工艺对高密双轴向经编复合材料剥离性能的影响
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摘要
为改善高密双轴向经编织物增强的复合材料的剥离性能,并优化其综合力学性能,采用单因素变量法研究了底涂工艺中黏合剂质量分数、焙烘温度和焙烘时间对该复合材料剥离强度的影响。采用正交试验分析了此3个因素对复合材料的剥离、拉伸和撕裂强力的影响,并确定了最优工艺参数。结果表明,使高密双轴向经编复合材料的力学性能最优的底涂工艺参数为:黏合剂质量分数为4%,焙烘温度为150℃,焙烘时间为60s。
In order to improve the peeling property of the composites reinforced by high density biaxial warp knitted fabric and optimize their comprehensive mechanical property,the paper studied the influences of binder mass fraction,baking temperature and baking time in the bottom coating process on the composites'peeling strength by single factor analysis.The three factors'influences on peeling,breaking and tearing strength of the composites were analyzed by orthogonal test,and the optimum technological parameters were found out.The results show that the mechanical property of high density biaxial warp knitted composites is the best when the binder mass fraction,baking temperature and baking time is 4%,150℃ and 60 s,respectively.
In order to improve the peeling property of the composites reinforced by high density biaxial warp knitted fabric and optimize their comprehensive mechanical property,the paper studied the influences of binder mass fraction,baking temperature and baking time in the bottom coating process on the composites'peeling strength by single factor analysis.The three factors'influences on peeling,breaking and tearing strength of the composites were analyzed by orthogonal test,and the optimum technological parameters were found out.The results show that the mechanical property of high density biaxial warp knitted composites is the best when the binder mass fraction,baking temperature and baking time is 4%,150℃ and 60 s,respectively.
引文
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[15]杨性坤,曹书勤,钟黎.黏接条件对接枝氯丁胶剥离强度的影响[J].信阳师范学院学报(自然科学版),1997(4):28-31.
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[17]刘晔,周荣星,胡红.涂层工艺对经编多轴向膜结构复合材料性能的影响[J].上海纺织科技,2005,33(1):61-64.
[2]WANG H,HAZELL P J,SHANKAR K,et al.Impact behaviour of dyneema?fabric-reinforced composites with different resin matrices[J].Polymer Testing,2017,61:17-26.
[3]LUO Y,HU H.Mechanical properties of PVC coated bi-axial warp knitted fabric with and without initial cracks under multiaxial tensile loads[J].Composite Structures,2009,89(4):536-542.
[4]罗以喜.多向载荷下PVC/双轴向经编织物的开缝撕裂性能[J].纺织学报,2009,30(6):58-61.
[5]罗以喜.双向载荷下双轴向经编柔性复合材料有限元模拟[J].纺织学报,2011,32(12):60-63.
[6]PARGANA J,LLOYD-SMITH D,IZZUDDIN B.Advanced material model for coated fabrics used in tensioned fabric structures[J].Engineering Structures,2007,29(7):1323-1336.
[7]BIGAUD D,SZOSTKIEWICZ C,HAMELIN P.Tearing analysis for textile reinforced soft composites under mono-axial and bi-axial tensile stresses[J].Composite Structures,2003,62(2):129-137.
[8]RAZAK H A,CHUA C,TOYODA H.Weatherability of coated fabrics as roofing material in tropical environment[J].Building and Environment,2004,39(1):87-92.
[9]JIN L,HU H,SUN B,et al.A simplified microstructure model of bi-axial warp-knitted composite for ballistic impact simulation[J].Composites Part B Engineering,2010,41(5):337-353.
[10]LI L,DUAN Y,LI C,et al.Mechanical properties of bi-axial warp-knitted fabric T700/BMI6421 composites[J].Acta Materiae Compositae Sinica,2011,28(6):92-97.
[11]BU Y H,FENG Y,LIU H W.The axial warp-knitted fabric and its reinforced composite[J].Advanced Materials Research,2011(332):837-840.
[12]矫卫红,陈南梁.经编双轴向织物用作涂层基布的性能优势[J].东华大学学报(自然科学版),2004,30(6):91-95.
[13]兰竹.机织层压类柔性复合材料界面黏接性能的研究[D].上海:东华大学纺织学院,2009.
[14]宁煜,陈南梁.涤纶多轴向经编织物增强柔性复合材料拉伸性能的研究[J].产业用纺织品,2005,23(8):19-22.
[15]杨性坤,曹书勤,钟黎.黏接条件对接枝氯丁胶剥离强度的影响[J].信阳师范学院学报(自然科学版),1997(4):28-31.
[16]HU H,XU Y.Tearing properties of coated multi-axial warp knitted fabric[J].Autex Research Journal,2008(8):13-16.
[17]刘晔,周荣星,胡红.涂层工艺对经编多轴向膜结构复合材料性能的影响[J].上海纺织科技,2005,33(1):61-64.