碳纖維增強(qiáng)聚有機(jī)硅氧烷基耐燒蝕材料的研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文碳纖維增強(qiáng)聚有機(jī)硅氧烷基耐燒蝕材料的研究姓名：秦凱申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：張聯(lián)盟王鈞20050501莖堅(jiān)里三查蘭堡主堂些絲苧AbstractBasedontheinvestigationOnthedataofpreparationandmodificationofthepolysiloxaneablative，theresearchontheCF—reinforeedablativewithgoo

2、dpropertiespreparedbypolysiloxaneasthematrixCFasthereinforcedmaterialandthecalciumcarbonateastheinorganicfillerwascarriedoutBytheanalysisofDSC，thepropertyofthematrixpolysiloxanewasstudiedTheresearchcomparedSAR一2withSAR一9

3、onthepropertyofhearresistanceoxidationresistanceandtechnicalpmcess。Theresearchshowedthatitwasnotthemajorfactorwhichhadbadimpactontheoverallperformanceofablativecomposite，thatSAR一9hadlessresidueandhigherviscositythanSAR2h

4、adasthematrixTheinferiorsituationcouldbeimprovedbytreatmentsWithregardtotheheat～resistance，solventvolumeandtechnicalpropertySAR9hasbigadvantageoverSAR一2andissuitableforthepreparationofablativematerialasthematrixTheresear

5、chonthecuringandimprovementofthematrixshowedthatcatalystshouldbeaddedintothematrixtOensureitscompletecuringandthetOU曲eningagentshouldbeaddedintothematrixtogiverisetothemechanicalpropertyofthecompositeTheresearchusedthedi

6、ethylenetriamineasthecatalyst，thedibutyl(o)phthalateasthetougheningagentandtheoptimaldosageis1％BytheanalysisofmechanicalandablativepropertiesandSEM，theimprovementofthecalciumcarbonateandCFwasstudiedTheresearchshowedthatt

7、heinterface，ablationandmechanicalpropertycouldbeimprovedbytheusageofDC60asthecouplingagentforcalciumcarbonateandCEWithregardtotheimprovementfortheinterfaceofcalciumcarbonate，DC一60isbetterthantetrabutyltitanateDC一60couldd

8、ecreasetheviscosityofthesystemtobetterthepreparationwhiletetrabutyltitanatewouldincreasetheviscosityofthesystemAsfarastheoilfactorwasconcerned，DC60hadbettereffectthantetrabutyltitanate，t00ThetreatmentforCFwascarriedoutby

9、cleaning，liquidoxidationandpolysilanecouplingangenttreatmentsequentlyConcentratedhydrogennitrateWaSusedintheliquidoxidationandthepropertimefortreatmentis2hExcesstimeoftreatmentchoulddecreasetheintensityofCFitselfSOastode