樺木APMP制漿的研究.pdf

1、分類號：TS7439密級：公開單位代碼：10152學(xué)號：200247大連輕工業(yè)學(xué)院碩士學(xué)位論文中文題目：樺木APMP制漿的研究英文題目：StudiesonAPMPPulpingofBirch系(院、所)：學(xué)科、專業(yè)：研究生：指導(dǎo)教師：化工與材料學(xué)院制漿造紙工程湯德芳張運展教授2005年4月——一壘!!型AbstractThispaperstudiedonaseriesofprocessingofpoplarandbirchwhichra

2、isedinthesecondaryforestinDongbeiarea，includingchemicalcompositions，APMPpulpingandtheirsmechanismsaswellThepaperfirststudiedontheeffectofimpressafiningonabsorbabilityofwoodchipsTheresultsshowedthattheimpressafiningbestti

3、meswere2TheexperimentresultsonthebirchAPMPshowedthatundertheconditionsofpretreatmentasfollows：1ststage：NaOH4晰，b0215％，Na2Si032O％，DTPAO2％，MgS04O05％，80。C，50min，liquortowoodratiol：6；2ndstage：NaOH3蝴，H2024O％，Na2Si032蝴，DTPAO2％，

4、MgS04O05％，80。C，50minliquortowoodratio1：6，APMPpulpofbirchwasproducedwiththebrightnessof698％1SO，thetearindexof460inNm2／gthecreasingnumberof25，thetensileindexof3913N’m／gandtheburstindexof2，30kPa’m2／gunderthebeatingdegreeof6

5、304SRTheexperimentresultsonthebirchPRCAPMPshowedthatundertheconditionsofpretreatmentasfollows：NaOHlo％，H20205％，Na2S曬31蝴，DTPA01％，MgS04005％，706C，40rain，liquortowoodratio1：6，P—RCAPMPpulpofbirchwasproducedwiththebrightnessof7

6、57％ISO，thetearindexof471mNm2／gthecreasingnumberof29，thetensileindexof4023N‘m／gandtheburstindexof238keam2／gunderthebeatingdegreeof620。SR_Duringthecourseofpulping，somechemicalcomponentsweredissolvedapparentlyoutofthewoods，

7、butthereweredifferentinpoplar’schemicalcomponentsandbirch’sThespeedofbirchofdissolvedchemicalcomponentswasslowerthanthatofpoplarWhenbirchwaspulpedbyPRCAPMPthechemicalcomponentsofbirchpulpbcamesmaller，Intheend，thechemical