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《耐高温丙烯酸酯类聚氨酯材料的制备与性能研究.pdf》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、第42卷,第7期工程塑料应用v0l·42,No7,12014年7月Ju1.2014lENGINEERINGPLASTICSAPPLICATIONdoi:lO.3969/j.issn.1001-3539.2014.07.005耐古同In日n.丙烯酸酯类聚氨酯材料的制备与性能研究周立明。杨彩霞,高丽君,方少明,商爱莲(郑州轻工业学院,河南省表界面科学重点实验室,郑州450002)摘要i以不同物质的量之比的1,3一丁二醇和邻苯二甲酸酐(PA)合成了苯酐聚酯二元醇,然后用傅立叶变换红外光谱(FTIR)、核磁共振氢谱(HMR)对自制的苯酐聚酯二元醇进行了
2、表征,结果表明1,3.丁二醇和PA反应完全,两者合成的产物与预期结构相符。用自制的苯酐聚酯二元醇、甲基丙烯酸.羟乙酯、异佛尔酮.二异氰酸酯制备了耐高温丙烯酸酯类聚氨酯(PuR)材料。用热重(TG)、动态热机械分析(DMA)等方法对制备的丙烯酸酯类PUR材料热稳定性和耐热性能进行了研究。结果表明,制备的丙烯酸酯类PUR材料的热分解温度均在230~(2以上,其储能模量、损耗模量、玻璃化转变温度()均比由聚丙二元醇400(PPG400)制得的丙烯酸酯类PUR高;随着苯酐聚酯二元醇中PA含量的增加,合成的丙烯酸酯类PUR的有所降低。当1,3.丁二醇与P
3、A物质的量之比为2:1时,制备的耐高温丙烯酸酯类PUR的比由PPG400制备的PuR高30℃以上。关键词:聚酯二元醇;丙烯酸酯类聚氨酯;耐高温性能中图分类号:TQ323.8文献标识码:A文章编号:1001.3539(2014)07.0021.04PreparationandPropertiesofPoly(urethane--methacrylate)MaterialswithHighTemperatureResistanceZhouLiming,YangCaixia,GaoLijun,FangShaoming,ShangAilian(Zhen
4、gzhouUniversityofLightIndustry,StateLaboratoryofSurface&InterfaceScienceTechnology,Zhengzhou450002,China)Abstract:Aseriesofpolyesterpolyolsweresynthesizedbyusing1,3-butanediolandphthalicanhydride(PA)withdifferentmolarratios.Thestructuresofthepolyesterpolyolswereinvestigatedb
5、yH-NMRandFTIR.Theresultsshowthatthethestructuresofthesyntheticalproductsareconsistentwiththeexpectedstructureofpolyesterpolyols.Thenthepoly(urethane—methacrylate)materialswithhightemperatureresistanceweresuccessfullypreparedby2-hydroxyethylmethacrylate,isophoronediisocyanate
6、andtheobtainedpolyesterpolyols.Thepropertiesofthepreparedmaterialswereconfirmedbydynamicmechanicalanalysisandthermogravimetricanalysis.Theresultsshowthatthethermaldecompositiontemperaturesofthepreparedmaterialsareallabove230~C.Furthermore,thestoragemodulus,lossmodulusandglas
7、stransitiontemperature()ofthepreparedmaterialsarehigherthanthoseofthepoly(urethane—methacrylate)materialspreparedwithPPG400.ofthematerialpreparedwiththepolyesterpolyolsisdecreasedslightlywiththeincreaseofPAcontentinpolyesterpolyols.Whenthemolarratioofthe1,3-butanediolandPAis
8、2:1,ofthematerialpreparedwiththepolyesterpolyolsishigherabout30℃thanthatoft
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