棉稈蒸爆處理制備無膠纖維板工藝及膠合機(jī)理的研究.pdf

1、南京林業(yè)大學(xué)碩士學(xué)位論文棉稈蒸爆處理制備無膠纖維板工藝及膠合機(jī)理的研究姓名：何翠芳申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：木材科學(xué)與技術(shù)指導(dǎo)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