聚氨酯丙烯酸酯光固化陰極電泳漆的制備及性能.pdf

1、Y84616l洳專(zhuān)：j碩士學(xué)位論文指導(dǎo)教師壹匿塞幽浙江大學(xué)碩士學(xué)位論文ABSTRACTAnacryliccopolymer訕mpendanthydroxylwassynthesizedbyusingacrylicmonomersinmethylethylketone，andthesynthesizedacryliccopolymerwasmodifiedbythehalfadductofisophoronedi—isocyanatean

2、dphydroxyethylmethacrylatetopreparethemodifiedacrylicresincontainingbothN，NdimethylaminogroupandvinylgroupapplicableforUVcurablecathodicelectrophoreticpaintAfterneutralizedbyacid，theUVcurablecathodicelectrophoreticpaintw

3、aspreparedThefactorsthatinfluencedthedispersibilityofthemodifiedacrylicresininwater，andthefilmthicknessoftheelectrodepositionwerestudiedAndtheparametersthatinfluencedthecuringtimeandpropertiesofthecuredfilmwerealsodiscus

4、sed13CNMRresultsshowedthatthehalfadductofisophoronedi—isocyanateandp—hydroxyethylmethacrylatecouldbeobtainedusingdibutyltindilaurateasthecatalystItwasfoundthattheconcentrationofdibutyltindilaurate，temperatureandmolarrati

5、oofthereactantsinfluencedthereactiontimeInfraredspectroscopyresultsshowedthatboththeunsaturatedvinylgroupandⅣ，Ndimethylaminogrouphadbeenintroducedintothemodifiedacrylicresin，indicatingthatthemodifiedacrylicresincouldbeap

6、pliedtoUVcurablecathodicelectrophoreticpaintCatalyst，temperature，influencedthereactiontimeofisocyanateinthehalfadductwithhydroxylintheacryliccopolymerThepresenceofcatalystacceleratedtheprogressofthereaction，andthecomplex

7、edcatalystexhibitedhigherefficiencyduetoitssynergiceffectItwasfoundedthatthecontentsofNNdimethylaminogroupandhydroxylgroupintheresin，theneutralizingagent，andtheneutralizationdegree，solidcontentinfluencedthedispersibility

8、ofthemodifiedacrylicresininwaterThedispersibilityofresininwaterwasimprovedwiththeincreaseofthecontentsofⅣ，Ndimethylaminogroupandtheneutralizationdegree，andtheviscosityoftheelectrophoreticpaintincreasedThedispersibilityof