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1、核殼型丙烯酸酯共聚乳液的研究與應(yīng)用摘要丙烯酸酯共聚物乳液織物涂層劑是乳液聚合技術(shù)的重要應(yīng)用之一。本課題針對丙烯酸酯共聚乳液的研究現(xiàn)狀,根據(jù)分子設(shè)計原理進行乳液共聚,優(yōu)化合成工藝,調(diào)整配方組合,制備出具有核殼結(jié)構(gòu)的丙烯酸酯乳液,并應(yīng)用實踐于織物涂層。以其解決常規(guī)丙烯酸酯共聚乳液織物涂層劑存在的一些不足之處,提高丙烯酸酯乳液的綜合性能,利用TEM、DSC、FTIR等多種手段和測試方法,深入分析并較為詳細的討論了聚合方法、保護膠體、弓l發(fā)劑、乳化劑、共聚單體功能單體等因素對乳液性能的影響。主要研究成果包括:(1)制備出低固含量但粘接性能優(yōu)良的丙烯酸酯乳液織物涂層劑,解決了傳統(tǒng)
2、織物涂層耐水性差和熱粘冷硬的現(xiàn)象。(2)采用傳統(tǒng)乳化劑和反應(yīng)型乳化劑復(fù)配制備具有核殼結(jié)構(gòu)的醋丙乳液,研究并討論了軟硬單體的選擇,乳化劑選擇及用量對乳液及涂膜性能的影響。其乳膠膜具有彈性好,手感軟,耐寒,防水透濕等優(yōu)勢。關(guān)鍵詞:丙烯酸酯共聚乳液反應(yīng)型乳化劑核殼TheResearch,andApplicationsofcore-shellstructuralAcrylateCopolymerEmulsionABSTRACTAcrylateeopolymeremulsionadhesiveandcoatingisoneoftheimportantapplicationfore
3、mulsionpolymerization.BasedontheresearchstatusofVinylAcetateandAcrylateCopolymerEmulsionadhesiveandStyrene—ButylAcrylicemulsioncoating;theemulsioncopolymerizationisperformedaccordingtomoleculedesigntheory.weoptimizethesynthesistechnicsandaajustthecombinationofmonomerandgettheVinylAcetate
4、andAcrylateCopolymerEmulsion.weuseitforcoatedfabricadhesive,andexpecttosolvetheproblemofVinylAcetateandAcrylatecopolymeremulsionadhesiveanddevelopthepropertiesofcopolymeremulsionadhesive.themeasurements,suchasTEM,F(xiàn)TIR,DSCandSOon,areemployedtocharacterizethestrutureoftheproduct.weanalyzea
5、nddiscusssomeinfluencingfactors,suchassynthesis,protectingcolloid,reactiontimes,initiator,emulsifier,eopolymermonomer,polymerizationtechnologysuchasstirringvelocity,onthepropertiesofacrylatecopolymeremulsionadhesive.mainresultsincludethat:(1)Weusethetechnicsofseedemulsionpolymerizationco
6、mbiningandgetlowsolidcontentVinylAcetateandAcrylatecopolymeremulsionadhesivewhichisusedincoatedfabric.Thecostingofproductionhasbeenreducedandthetensilestrengthhasbeenincreased.(2)PolymerizationofAcetic/Acrylicmicrosoap-containingemulsionhasbeenpreparedwithVAc,BAandMMAasmonomers.TheSVSrea
7、ctiveemulsifier,SDSandOP一10emulsifierwasused.TheinfluenceofratioofSOftmonomerandhardmonomer,kindsandlevelsofemulsifier,etc.Keywords:Acrylate;Core—shellstructure;ReactiveEmulsifierII表格清單表3.1實驗所用藥品列表??????????????????????19表3.2實驗所用設(shè)備列表???????????????????20表4.1丙烯酸酯共聚乳液性能指標(biāo)??