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《松香基丙烯酸酯乳液压敏胶制备》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、松香基丙烯酸酯乳液压敏胶的制备柴坤刚1,2，苏梦洋1，徐志君1，纪红兵2,3*(1.广西大学轻工与食品工程学院，广西南宁530004；2.广西大学化学化工学院，广西南宁530004；3.中山大学化学与化学工程学院，广东广州510275)摘要：由松香和富马酸合成并提纯得到富马海松酸，然后由富马海松酸与丙烯酸-2-羟乙酯合成富马海松酸双-2-（丙烯酰氧基）乙酯（AEFE）。通过酸值、FTIR和1HNMR等表征发现，AEFE分子结构上具有两个环外C=C双键和1个羧基。以AEFE为反应性增粘树脂，采用原位共聚法改
2、性丙烯酸酯乳液，对AEFE和乳化剂的用量进行了考察。结果表明：随着AEFE用量增加，单体转化率未显著降低，且经过共聚反应后AEFE的C=C双键消失，说明AEFE具有很强的反应活性。当AEFE和乳化剂的用量分别为单体总质量的8.4wt%和0.64wt%时，增粘树脂与丙烯酸酯相容性良好，所得改性丙烯酸酯乳液压敏胶粘接性能最佳，此时初粘力为18#钢球、180o剥离强度为7.21N/25mm且持粘力超过100h。关键词：反应性增粘树脂；松香；丙烯酸酯乳液；共聚改性；压敏胶中图分类号：文献标识码：ASynthesi
3、sofRosinModifiedAcrylateEmulsionPressure-sensitiveAdhesiveCHAIKun-gang1,2,SUMeng-yang1,XUZhi-jun1,JIHong-bing2,3*(1.SchoolofLightIndustryandFoodScience,GuangxiUniversity,Nanning530004,Guangxi,China;2.SchoolofChemistryandChemicalEngineering,GuangxiUniversi
4、ty,Nanning530004,Guangxi,China;3.SchoolofChemistryandChemicalEngineering,SunYat-senUniversity,Guangzhou510275,Guangdong,China.)Abstract：Fumaropimaricacidwassynthesizedandpurifiedbyreactionofrosinandfumaricacid,followedbytheesterificationwith2-hydroxyethyl
5、acrylate,producingdi-2-acrylateethylfumaropimaricester(abbrev.,AEFE).ItwasapprovedthatthestructureofAEFEhastwoout-ringC=Cdoublebondsandacarboxylgroupthroughaseriesofcharacterizationmethods(e.g.,acidvalue,FTIRand1HNMR,etc.).Then,AEFEwasemployedasreactiveta
6、ckifierformodificationofacrylateemulsionpressuresensitiveadhesive(PSA)byinsitucopolymerization,inwhichtheeffectsofdosagesofAEFEandemulsifierwereinvestigated,respectively.ItwasfoundthatthemonomerconversionshowedsubtledecreasewithincreaseofAEFEdosage,andthe
7、C=CgroupsinAEFEdisappearedaftercopolymerization,indicatingthatAEFEhadstrongreactivity.Moreover,withthedosageofAEFEanddosageofemulsifierbeing8.4wt%and0.64wt%basedonmonomersmassrespectively,thetackifiershowedfavorablecompatibilitywithpolyacrylate.Meanwhile,
8、themodifiedacrylateemulsionPSAhadthebestadhesivepropertiesasfollows:theinitialtackwas18#steelball,the180opeelingstrengthwas7.21N/25mmandtheholdingforceexceeded100h.Keywords：reactivetackifier;rosin;acrylateemulsion;c
