%0 Journal Article
%T TougheningofBMIBasedGraphiteLaminatesbyEx-situConcept
%A CHENGQun-feng
%A XUYa-hong
%A YIXiao-su
%J ²ÄÁϹ¤³Ì
%P 41-45
%D 2006
%X High-performancebismaleimdes(BMI)matrixcompositesreinforcedbygraphitefiberswerepreparedandtoughenedwithathermoplasticcomponent(PAEK)byusingtheEx-situconcept.Experimentalmatrixwasdesignedforoveralltougheningofthebaseresin,periodicallyinterleavingthermoplasticfilmsintoeachplies(Ex-situconcept)andforvaryingthefilmcompositions.Thehighestimpactdamageresistancecharacterizedbycompressionafterimpact(CAI)wasobtainedforthelaminatestoughenedontheEx-situconcept,especially,whentwo-componentcastfilmsofaspecialrationofPAEK/BMI6040wereinterleavedthoughthethermoplasticconcentrationfortheoveralltoughening,interleavingthepurethermoplasticfilmsandthetwo-componentfilmswascomparable.ThereweretwopeaksfoundintheDSCtraceofthelaminatestoughenedimplyingaphaseseparationprocessoccurred.Theglasstransitiontemperatureofthelaminatestoughenedwasslightlyreducedduetothelow-temperaturePAEK.Morphologicalstudyrevealedatypicalgranularstructurejustintheinterplayregionasaresultofspinodaldecompositionandcoarseningprocess.ThiswasinagreementoftheresultofDSCinvestigation.
%K bismaleimdes
%K compressionafterimpact
%K Ex-situconcept
%U http://jme.biam.ac.cn/CN/Y2006/V0/I5/41