氟硅改性聚丙烯酸酯聚氨酯復(fù)合乳液的合成與性能研究

1、中國科學(xué)技術(shù)大學(xué)碩士學(xué)位論文氟硅改性聚丙烯酸酯聚氨酯復(fù)合乳液的合成與性能研究姓名：潮靜申請學(xué)位級別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：張興元20060501Abstract中國科學(xué)技術(shù)大學(xué)碩十學(xué)位論文AbstractIndividualpolyurethane(eu)aqueousdispersionhassomemerits，suchaslowpHstability，poorpigmentabilityandlimitedoutdo

2、ordurabilityThehybridpolyurethanelatexeshavegainedmoreandmoreattentionandspeedydevelopmentinthepastyears，especiallytheacrylic—polyurethanehybriddispersion，whichwascalled“thethirdgenerationaqueouspolyurethane”Currently，hy

3、bridemulsionsbasedonacrylicpolymers(PA)andpolyurethanesarebeingwidelyusedasoneofmajormaterialsinpainting，ink，adhesivesandcoatingsindustries，whichareexpectedtoprovidetheadvantagesofacrylicpolymerssuchashardness，gloss，weat

4、herabilityandchemicalresistance，andalsoplustheadvantagesofpolyurethanessuchasexcellentadhesionandtoughnessHowever，somepropertiesforcuredfilmsuchaswaterandoilresistancesneedtobeimprovedfurtherforthistypeofpolyurethaneSili

5、conatedpolyurethaneSi—PUdemonstratessuperiorflexibility，resistancetohumidity，thermalstabilityandresistancetosolventandacid／baseconditions，butpooroilresistanceHuorinatedpolymerspossessawholerangeofveryinterestingbulkandsu

6、rfaceproperties，suchasexcellentenvironmentalstability，waterandoilrepellency，lowcoefficientoffriction，biocompatibility，excellentthermalstabilityandchemicalresistanceaswellaslowinterracialfreeenergy，butthepriceoffluorinate

7、dmonomersisratherhigh，whichleadstoalimitationoflargescaleusingforF—PUproductsAsaresultincorporationofbothfluorineandsiloxanewillnotonlyimprovewaterandoilresistancesofpolyurethanebutalsocutdownthecosttnthisstudy，firstaser

8、iesofwaterbornepolyurethanemodifiedwithdifferentsiloxanecontentwassynthesized，andtheirsurfaceandmechanicalpropertiesweremeasuredItwasfoundthatwaterresistencewassignificantlyincreasedandthemechanicalpropertywasenhancedwit

9、hsuitablesiloxanecontentTheacrylic—polyurethanehybridemulsion(FSFUA)，inwhichsiloxaneandfluorinewerebothincorporatedintothepolymerchains，waspreparedbyseedemulsionpolymerizationbasedonSi—PUThecontentsofsiloxaneandfluorinew