Processing and properties of PMR polyimide composites reinforced with 3D woven glass fabric，2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）-中国聚合物网,论文下载

Processing and properties of PMR polyimide composites reinforced with 3D woven glass fabric

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关键词：

PMR Polyimide Composite Three Dimensional (3D) orthogonal
Glass fiber

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829K

所属学科：

分子表征

来源：

2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）

简介：

3Dorthogonalwovencompositeshavehigherdelaminateresistanceandimpactdamageresistancethanlaminatedcomposites.PMRtypepolyimidecompositesareadvancedhightemperaturepolymermatrixcompositesfrequentlyusedinavarietyofaerospaceapplications.Inthisstudy,3DorthogonalwovenfabricreinforcedPMRtypepolyimidecompositeswerepreparedfrom3DorthogonalwovenglassfiberperformsandPMRtypepolyimidematrixresin,whichderivedfrom4,4’-methylenediamine(MDA),diethylesterof3,3’,4,4’-oxydiphthalicacid(ODPE),monoethylesterofcis-5-norbornene-endo-2,3-dicarboxylicacid(NE).TherheologicalpropertyofthePMRpolyimidematrixresinswasinvestigated.Fromtheresultsofanalysis,atwo-stepimpregnation/hot-compressionmethodcanbeestablishedforthecompositesprocessing.Inthefirststep,the3Dfabricpreformswereimpregnatedwithpolyimideresininavacuumovenandheatedupto200℃fordegassingthevolatilesandby-products.Inthesecondstep,compositeswerecompressed.Theglasstransitiontemperature(Tg)andthedecompositiontemperatureat5%ofweightloss(T5)werehigherthan540℃and700℃,respectively.Theinternalstructurewasobservedbyamicroscope.Theresultingcompositesalsoexhibitedgoodmechanicalproperties.

作者：

XIE Jianfei, ZHANG Yingchen, CHENG Sichen, QIU Yiping

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2010-03-22 16:12:21

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