水性聚氨酯的合成研究.pdf

1、北京化工大學(xué)碩士學(xué)位論文水性聚氨酯的合成研究姓名：郝艷霞申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：陳曉春于富春20050405韭室些三查蘭三矍堡主絲苧SynthesismodificationofaqueouspolyurethaneAbs仃actAfinishingagent，watersolubilitypolyurethane，wasintroducedinthispaper，involvingitskindspreparatio

2、nandthedevelopmentofitsapplicationindyeingandfinishingofthetextilematerialTheaqueouspolyurethanedispersionwassynthesizedbythereactionofpolyolsE220，toluenediisocyanate(TDI)，dimethylolpropionieacid(DMPA)，trimethyeolpropanc

3、(TMP)andtriethylamine，Studiedtheinfluenceofvariousfactors，suchaspreparationtechnique，reactiontemperature，reactiontimeNCO／OH，DMPAandTMP，onthesynthesisofwatersolubilitypolyurethaneanditsfilmperformanceAbetterformulawasobta

4、inedItwasfoundthatwithincreasingNCO／OHratio，theemulsionviscosityparticlesizeoftheemulsionandtensilestrengthoftheemulsioncastfilmincreased，whilethephaseinversiondehayed，elongationatbreakandwuterabsorptiondecreased；withmor

5、eDMPA，theemulsionviscosityandwaterabsorptioninerea∞dwhilethephaseinversiondecreasedtheparticlesizeoftheemulsionelongationatbreakoftheemulsioncastfilmdecreased，thetensilestrengthincreasedatfirstthendecreased，thetensilestr

6、engthoftheemulsioncastfilmwasthehighestattheDMPAcontentofIO％；and、埔tllmoreTMPtheemulsionviscositydecreased，thephaseinversionoccurredearlythepropertieswasthebestattheTMPcontentof4％Thecationicwatersolubilitypolyurethanewass

7、ynthesizedbythereactionoftoluenediisoeyanate(TDI)withpolyolsE220，hydropalicextenderTheeffectsofthecategoryadditionmethod，additioncontentsandneutralizationdegreeofhydrophilicextenderagentonthepropertiesofPUdispersionandit

8、sfilmwerediscussedItwasfoundthatthecationicwatersolubilitypolyurethane，whichpreparedbyNmethyldiethanolamine嬲hydrophilicextendercombinedwithstarvedadditionmethodand90％一100％neutralizationdegree，hasgoodstoragestabilityandit