復(fù)合膜用水性聚氨酯粘合劑的研究.pdf

1、天津科技大學(xué)碩士學(xué)位論文復(fù)合膜用水性聚氨酯粘合劑的研究姓名：喬勇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：盧秀萍200903ABSTRACTAJlhoughaluminumfoilsissoRandfoldedusedasfbodpackagingmate“aIs，itsmechanicalstren舀handsealjngareVerypcorHaVjngli曲lerweigh￡，highlransparency，goodmoistur

2、eresistanceandheatstability’poIypropylene(BOPP)hasbeenwidelyusedinVaurlouspackageapplications，suchasfood，medicineanddisinfectantmedicaldevicesetcAluminumplasticsdoublemembranesnexiblepacka西ngmaterialwithgcIodbarrierprope

3、ny，mechanicalperfonnanceandheatseal—abiIitycouldbeobtainedbylaminatingaluminumwjtbBOPPnewate加mepolyurechane(pU)shouldbemodjfiedsincethea曲eslOnisVery10wert0usegeneralPUtoIaminateBOPPwithaluminumanditisfarf的mmeetingtheappl

4、icationrequirementsPolyethe啷ycols1000(or2000)，IPDI，DMPAandTMPwereselectedasrawmaterialsinpreparationofanionicwaterpolyureth齟e(PU)firstlyintheresearchThestructure0fthesystemwascharacterizedbyF兀Rspectrum，laseranalyzer，revo

5、lvingVlscometer，the冊(cè)ogravimetricanalyzerandelectronicle力silemachineT11einfluenceofNOO／0Hmoleratio，000HC0ntentandcrosslinkerscontentsonemulsionstabilitv，Viscositypaniclesize，waterresist卸ccand1800peelstren甜hofBOPPwithalumi

6、numwereinVestigatedTheresultsshowed：(1)WiththeincreasesofNCO／OHmoleratio，thetensilestren舀hincreased，theelongationatbreakandwaterresistancedecreasedwhensoRsegmentsmolecular、Veigllt、Ⅳere10()0柚d2000，180。peelstrengthofBoPPwi

7、thaluminumwereoptimumatNCO／0Hmoleratiowere145and155respectively(numericalValuewere0248kNmqandO227kN仰。)(2)Withtheincreasesof—COOHC0ntents，thepaniclesizeandwaterresistanceoffilmdecreasedWhenCOOHContentsw蕊24％1800peeIstIen昏h

8、ofEIOPPwithaluminumreachedthemaximum伍umericalvaluewas0247kN佃1)(3)Wi￡htheincreasesof聊P。0ntents，chemechanicalpropertiesaIldwaterreslstancewereimpr0VedWhenTMPcontentswas09wt％，the1800peelstrengthofBOPPwithaluminumreachedthem

9、aximum(numericalvaluewasO253kNm。1)SeCondlyaccordingtotheresultsofPU，acrylatesaIldwaterl)omepolyurethaIle(PU)wereselectedrespectively弱monomeraIldseed鋤ulsion鋤dpolymeremulsifiert0pr印arep01yurethaneacrylate(PU砷hybridemulsion

10、withcoresheUstmcturcbyadding。11PGDA0r刑凡氣0r腿MAneinfluence0fthemassratios0fPAt0PUS0f|【monomerto姍monomerin：P!～crossliIlkerscontentsandHEM匕～contentonthePUAlatex勰dfilmpe—b珊ancewereinvestigatedTheresultsindicated：(1)Withtheinc

11、reasesofma鼴ratioofI’At0PUandm蕊sofhardmonomerinfAthevisCosityofthehybrid鋤ulsiondecreases，particIesizeincre雒es，thewaterresistanceandthemalpropertyoffilmwereimpr0VedWhenthemassratiooffAt0PUwas20’softmonomert0hardmonomerofPA