棉稈蒸爆處理制備無膠纖維板工藝及膠合機理的研究.pdf

1、南京林業(yè)大學碩士學位論文棉稈蒸爆處理制備無膠纖維板工藝及膠合機理的研究姓名：何翠芳申請學位級別：碩士專業(yè)：木材科學與技術(shù)指導教師：周曉燕20080601studyonProcessesofBinderlessFiberboardfromSteamExplodedCottoⅡStalkandItsBondingMechanismAbstractTheobjectof廿leresearchist0acmevebremm腫ughdeVelop

2、mentinmeproductionofbinde訂essfiberboard丘。omsteamexplodedcottonstalk，e)【pe矗mentedrepeatedlyaJldoptilllizedpressingconditioIlS，basedonthepreViousselfbondiIlgt11eo巧Thekeyisto岫pfoVetllepe—’omancesofselfbondingboardaIldexplor

3、ethebon曲唱mecI砌smofbinderless助erboardInmeexplodingexperiment，廿leco們n剛k舶ercallbeseparateda舭rbeingexploded，t11e11igherofexplodingpressure，nlebetterofseparateddegree；celluloseandhemicellulosehydrolyzedpartly，itshydrolyzabled

4、egreeheighten誦mexplodiI唱pressureincreasedGoodper=f0衄ancebindedess助erboardscanbeproduced，especiallyt11ew她印roofabili夠W№iIlcreaSiIlgoftheexplodiI培pressure，tlle助erboard’sIBincreased，MORandMOEdecreasedAccordingt0t11eeXplosive

5、eXperiment，tlleomlogomltest，andsir塔lefactoreXpe曲e咄meoptimizedprocessingp∞ametersofbillderless舶erboardfromsteamexplodedcottonsta墩證la_borato巧weredbtamed：t0produce4mmboard晰tlldellsi鑼of0859／cm’undersuchconditions：moisturecon

6、tent(MC)10％～15％，h優(yōu)pressiIlgtemperanIre200℃～210℃，pressure45MPaa11dhotpressingtinleabout90s／mmExceptmemodulusof11Jpture(MOR)，Theotllerpropertiesofproductscallmeett11eStall如dofMDF(GB廠r11718—1999)BySc鋤曲lgElec仃onMicrosc叩e(SEM

7、)，XrayDimaction(XItD)，F(xiàn)ourier1rallsfom111f陸edSpec仃oscopy(FTIR)，Hi曲pemmanCeLiquidCl啪matography(HPLC)aIldchemicalanalyses，t：hechaJlgesoft：hes仃ucture，themaillcomporlentS，t11e劬ctioIlalgroupsandthec巧staldegreeofcellulose㈨ngt1

8、1eprocessingwereiIlVestigatedTheprobablebondingmecll乏mismofmebmderlessfiberboardare：1HydrogenbondⅡ1eo巧2Fu而】ral’sresini丘c撕on3PolymerizationbetweenmmnlandligI血4NewLCC’ssylltllesizationKeywords：cottonstalk，bhlderlessfiberbo