Mechanical and Physical Properties of Needle Punched Nonwoven Kenaf Fiber Mat Composites Produc by Resin Transfer Moulding(RTM)，第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）-中国聚合物网,论文下载

Mechanical and Physical Properties of Needle Punched Nonwoven Kenaf Fiber Mat Composites Produc by Resin Transfer Moulding(RTM)

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关键词：

stitching density penetration depth nonwoven resin transfer
moulding alkaline treatment

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109K

所属学科：

分子表征

来源：

第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）

简介：

Theeffectofmatfabricationparametersi.e.stitchingdensity(SD)andpenetrationdepth(PD)onthemechanicalpropertiesofneedlepunchednonwovenkenaffibrematreinforcedepoxycompositesproducedviaresintransfermoulding(RTM)techniquewasinvestigated.Kumarcl]reportedthatappearanceanddegreeofcompressionwhichmayinfluencethestrengthofaneedlefeltnonwovenfibermat,weremainlyinfluencedbyneedlearrangementintheneedleboard,needleparameters,needlingparameters(penetrationdepthandstitchingdensityanddirectionofneedling).Thustheaimofthisstudyistoinvestigatetheeffectofneedlingparametersfactorsi.eSDandPDinenhancingthemechanicalstrengthofkenaffiberepoxycomposites.ThevariationintheSDvaluefrom25cm-2t075cm-2andPDfroml.0cmt02.0cmseemstogivesignificantchangesonmechanicalpropertiesofthecompositesbyalteringthefiberinterlockingpatternwithinthenonwovens.TheidealSDandPDfornonwovenkenaffibrewererespectively50crrl-2andl.5cm(SsoPi.s).Asignificantenhancementofflexuralpropertiesandimpactpropertieswasobservedfortheresultedcomposites.NeithertoohighSDnorPDwasresultedinexcessivefibrebreakageandlooseningofphysicalinterlockingthusreducedtheflexuralstrengthofthecomposites.6%NaOHofalkalinetreatmentisfoundtobeoptimumconcentrationfortreatingkenaffibrecompositeswhichenhancedthefiber-matrixadhesionwithepoxymatrix.SimilarobservationwasfoundbyEdeerozeyetal.[2]inwhich6%ofNaOHistheoptimumtreatmentintermsofenhancingthepropertiesofkenaffiber.Goodfiber-matrixinteractionimpartedbetterflexuralandthermalpropertiesbutslightlyreducedtheimpactpropertiesoftheresultedcomposites.

作者：

Z. A. Mohd. Ishak, M. S. Salim, R. Mat. Taib, M. Z. Ahmad Thirmizir

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2013-06-21 16:35:21

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