聚酰胺环氧氯丙烷的合成、改性及在造纸上的应用

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1、浙江理工大学硕士学位论文SynthesisandModificationofPolyaminoamide-EpichlorohydrinResinsandApplicationsasPaperStrengthAgentABSTRACTBecauseoftheshortageofwoodresourcesinchina,thelowersheetgrammageandthehigherfilleraddition，thepaperindustryisfacingthedecreaseofthepaperstrength(especiallythewetstrength)．Thisthesiss

2、tudiesthepreparationofPAEresinanditsmodificatedproduct，whichissuitableforthemodempapermaking．PAEresincontainshurnfulAOX，whichrestrictitsdevelopmentaspaperwetstrengthagent．ToprepareLow—AOXPAE，thispaperintroduceddoublebondstothemolecularstructureofPAE．AndthesharingsystemofPAEresinandanionicmaterialwa

3、sstudied．ThispaperstudiedtheinfluenceofthePAEresincontaininglowcontentofAOX，unsaturated．PAEresinandPAE／CMCbinarysharingsystemonthestrength,especiallywetstrengthofpapersystematically,byusingbleachedsoftwoodandbleachedhardwoodpulpasrawmaterials．First，thesynthesisconditionsofPAEresincontmnedlowcontent

4、ofAOXWasstudied．The‘resultsshowedthatthebestsynthesisconditionsofPAEresinWas：thetemperatureofsynthesisofPPC，thefirstheatedto160℃，reactionfor3h,thenheatedto190℃，reactionforlh，acid—aminemolarratioof1：1；thetemperatureofsynthesisofPAE，heatedto60"C，EPI／PPCmolarratioof1．1，pHvalue=9，thistimethecontentofth

5、eorganicchlorineWas0．145％．ByFT-IRanalysis，PAEstructurecontainedthesee-amideC=Obondandthesec-amideN-Hbond．thismasswasprovedasPAEresin．TheresultsalsoshowedthatPAEresinwasmoresuitableforusingunderalkalineconditions，inalkalineconditions，theretentionratereached26．5％afterhigh-temperatureageing，thewetstre

6、ngthwasnearlythreetimesasun-aging．Theburstindexreached4．49kPa·m2／gandthetearindexreached13．9mN·m2儋．Second，theunsaturatedPAEbygeneratedacrylicmodifiedPAEresinwasstudied．TheresultsshowedthatthebestconditionsofsynthesisoftheunsaturatedPAEWasthereactiontemperatureof60℃，alcoholaminemolarratioof2．4，PTSAa

7、scatalyst，thistimethe铲mefficiencyWasmorethan98％．ByFT-IRanalysis，the1729cm‘1appearedtheC=Ostretchingvibration,1174cm"1appearedtheC(C=o)-Ostretchingvibration，describedthegraftcopolymerizationofPAEandAAhasoccu