高溫?zé)崽幚砬昂笾癫闹饕瘜W(xué)成分及物理力學(xué)性能研究.pdf

1、南京林業(yè)大學(xué)碩士學(xué)位論文高溫?zé)崽幚砬昂笾癫闹饕瘜W(xué)成分及物理力學(xué)性能研究姓名：包永潔申請學(xué)位級別：碩士專業(yè)：木材科學(xué)與技術(shù)指導(dǎo)教師：蔣身學(xué)20090601ResearchontheMainChemicalComponents，PhysicalandMechanicalPropertiesofBambooafterThermalTreatmentAbstractThispaperistostudyonthechangesofbambooc

2、omponets，phr7sicalandmechnicalproertiesbeforeandafterheat—treatmentAnexperimentwascarriedout晰t11twomainindexes，ieheattreatmenttemperatureandtreatmenttimeThosechangesappearedunderdifferentsconditionswereinvestigatedinthis

3、thesisThebestheattreatmentprocesseswhichCanmeetdifferentdemandswereobtainedafteranalyzingTheresultsshowthat：Byheattreatment，complexchemicalchangesinbambooweretakenplaceWiththeraiseofheattreatmenttemperatureandheattreatme

4、nttime，celluloseandholocellulosecontentsdescend，butlignincontentascendsItisveryobviousthatthemainchemicalcomponentswereaffectedbyheattreatmenttemperaturecomparedwithuntreatedbambooForexample，thecellulosecontentreduced150

5、2％，holocellulosecontentreduced2908％，butlignincontentincreased2426％Afterheattreatmentthedensityshrinkageandswellingofbamboodescend、析ththeraiseofheattreatmenttemperatureandheattreatmenttimeTheaffectionofheattreatmenttemper

6、atureissignificantandheattreatmenttimeinsignificantThetrendofthefivemainmechanicalpropertiesshowsdownforwardastheheattreatmentarisesHeattreatmenttemperatureforthemechanicalpropertiesissignificant，butheattreatmenttimefors

7、hearingstrengthparalleltograinissignificantForbamboodensityandmechanicalproperties，theoptimalheattreatmentprocessisasfollows：temperature150“C，heat—treatmenttime2hForbambooshrinkageandswelling，theoptimalheattreatmentproce