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ID:37233571
大小:2.99 MB
页数:80页
时间:2019-05-20
《聚酰胺环氧氯丙烷的合成、改性及在造纸上的应用》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
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
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