高強(qiáng)度煤基管狀炭膜的制備及應(yīng)用.pdf

1、大連理工大學(xué)碩士學(xué)位論文高強(qiáng)度煤基管狀炭膜的制備及應(yīng)用姓名：張萬(wàn)棟申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：化學(xué)工藝指導(dǎo)教師：王同華20080601高強(qiáng)度煤基管狀炭膜的制備及應(yīng)用PreparationandApplicationsofHighStrengthCoal—basedTubularCarbonMembranesAbstractCarbonmembranesasnovelporousinorganicmembranesareusuallyprep

2、aredbycarbonizationofcarbonaceousmaterialsCarbonmembranescanbeappliedinmanyfieldssuchaschemicalproductionseparation，gasseparation，membranereactionetcbecauseoftheirthermalandchemicalstabilityinnonoxidizingatmosphereHoweve

3、rmostofcarbonmembraneprecursorsarecommerciallyexpensivewhichmaygreatlylimitthecommercialapplicationofcarbonmembranesTherefore，itisnecessarytOsearchalowCostprecursortopreparecarbonmembranesCoalhasseveraladvantagesasthepre

4、cursorforcarbonmembranesbecauseofitslowcostandaromaticstructure，whichisdominatedbypolycyclicaswellasmonocyclicaromaticringsystemCoalbasedtubularcarbonmembraneshavebeenpreparedincarbonresearchlaboratoryofdalianuniversityo

5、ftechnologysince1995ACoalbasedtubularcarbonmembranewithhighflux，highporosityandnarrowporesizedistributionWaspreparedwithCMCandanthraciticcoalHoweveritslowmechanicalstrengthmaygreatlylimitthecommercialapplicationofcoal—ba

6、sedcarbonmembranesTherefore，itisnecessarytoprepareahighstrengthcoalbasedtubularcarbonmembraneInthispapertheprocedureforproducinghighstrengthcoal—basedtubularcarbonmembraneswithCMCasbinderthroughmixingshortcarbonfibre，bit

7、uminOUScoalandanthracitecoalwaspresentedTGXRDandSEMwereemployedtostudythereinforcemechanismEf|feCtofprocessingparameterssuchastheratioofbituminouscoalandshortcarbonfibre，carbonizationtemperatureonthestrengthandporestruct

8、ureofcoalbasedearbonmembranesWasinvestigatedTheresultsshowthatbituminouscoalandshortcarbonfibrecanimprovethestrengthofcoalbasedcarbonmembranessignificantlyWhenthebituminouscoal’Smassfractionupt050％thecompressivestrengtho

9、fcarbonmembranesWastwicestrongerthanitusedtobe，andthedetonationstrengthexceeded5MPaShortcarbonfibrecanimprovetheimpactstrengthandrichtheporestructureofcoalbasedcarbonmembranesTheimpactstrengthofcarbonmembranesWasenhanced

10、from103KJ／m‘to414KJ／mzafterthecarbonfibrewasmixedinBituminouscoalcallimprovethecompositebetweenshortcarbonfiberandcoalbasedcarbonmembranesInthisworktwOdifferentcoalbasedtubularcarbonmembranes(bituminouscoalcarbonmembrane