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1、钛氟聚丙烯酸酯乳液的性能及应用李培枝，席佳*，史嘉航，焦智奕，刘启功(陕西科技大学化学与化工学院，陕西西安710021)摘要：以纳米TiO2(Nano-TiO2)、¡-甲基丙烯酰氧乙基三甲氧基硅烷(KH570)、全氟辛基乙基丙烯酸酯（FM）为主要原料，通过KH570改性纳米TiO2后，与丙烯基单体共聚制得活性纳米TiO2改性含氟聚丙烯酸酯复合乳液。通过红外光谱（FTIR）、原子力显微镜（AFM）及接触角测量仪表征共聚物的结构，测定其性能。结果表明：改性纳米TiO2、含氟单体均成功引入到聚丙烯酸酯共聚物中；乳胶粒呈球形分布，表面光滑且呈单分散状态，平均粒径为184nm；与丙烯酸酯聚合物
2、相比，改性后涂膜的粗糙度提高，有利于防水防油性能的提升。氟硅单体的加入使涂膜的接触角增大，对水和二碘甲烷的接触角分别为125°及110°，复合乳液用作表面施胶剂对纸张进行测试后，纸张对水接触角为147°，对二碘甲烷接触角为133°，纸张防水防油性随着氟单体的引入而显著增加。请尽量用数据说话关键词：含氟丙烯酸酯；活性纳米TiO2；复合乳液；防水防油中图分类号：TQ638；O69文献标识码：APreparationandApplicationofFluorinatedPolyacrylateEmulsioncontainingTiLipeizhi,XiJia*,Shijiahang,Ji
3、aozhiyi,Liuqigong(CollegeofChemistryandChemicalEngineering,ShaanxiuniversityofScience&technology,Xi'an710021,Shaanxi,China)Abstract:Fluorine-containingpolyacrylatecompositeemulsionmodifiedbyactivenanoTiO2waspreparedwith¡-methylmethacrylatealkoxysilane(KH570),nano-TiO2modifiedbyKH570,perfluorina
4、tedoctylethylacrylate(FM)asthemainrawmaterial,andcopolymerizedwithpropenylmonomers.Thestructureandperformanceofcopolymerwerestudiedbymeansofinfraredspectroscopy(FT-IR),atomicforcemicroscope(AFM)andcontactanglemeasuringinstrument.Theresultsshowedthatthemodifiednano-TiO2andfluorinatedmonomerswere
5、successfullyintroducedintopolyacrylatecopolymer.Thegranuleswerespherical,smoothandmonodispersewithanaverageof184nm.Comparedwithacrylatepolymer,theroughnessofmodifiedfilmwasimproved,whichwasadvantageoustothewaterproofandoilproof.Theadditionoffluorineandsiliconmonomerlargelyincreasedthecontactang
6、le,andthecontactangleofwateranddiiodomethanewas125°and110°respectively.Atlast,thecompositeemulsionwasusedasapapersurfacesizingagent,thewatercontactanglewas147°,thediiodomethanecontactanglewas133°,thepaper’swaterproofandoilrepellencyweresignificantlyincreasedwiththeintroductionoffluorinemonomer.
7、Keywords：fluorinatedpolyacrylate;activenanoTiO2;compositeemulsion;waterandoilrepellencyFoundationitems：NationalNaturalScienceFoundationofChina(51373091)；NaturalScienceFoundationofShaanxiProvince(2017JM2017)；ScientificResearchFound
