| 纳米TiO2/含氟苯丙乳液的制备及性能研究 |
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| 引用本文： | 段红军,肖新颜. 纳米TiO2/含氟苯丙乳液的制备及性能研究[J]. 新型建筑材料, 2011, 38(1) |
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| 作者姓名： | 段红军 肖新颜 |
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| 作者单位： | 华南理工大学化学与化工学院,广东,广州,510640 |
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| 摘 要： | 采用原位乳液聚合法,以硅烷偶联剂表面修饰的纳米TiO2与苯乙烯(St)、丙烯酸酯、有机氟单体(DFMA)为原料,合成了具有核壳结构的有机-无机杂化纳米TiO2/含氟苯丙复合乳液.探讨了乳化剂、DFMA和TiO2用量对复合乳液性能的影响,并通过粒径分析、接触角、傅里叶红外光谱(FT-IR)、热重(TG)、差示扫描量热仪(DSC)及透射电子显微镜(TEM)等方法对复合乳液和乳胶膜的结构及性能进行了表征.结果表明,由于纳米TiO2与DFMA的协同作用,涂膜的疏水性和耐热性能得到了较大提高,纳米TiO2含氟苯丙复合粒子的平均粒径为100 nm左右,当DFMA和TiO2用量分别为14%和2%(质量百分数)时,涂膜-空气界面对去离子水的接触角达112.3°,乳胶膜的表面能低至15.21 mN/m.
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| 关 键 词： | 核壳结构 含氟苯丙复合乳液 疏水性 有机-无机杂化 原位乳液聚合 |
Preparation and properties of nano-TiO2/styrene-acrylate emulsion containing fluorine |
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| DUAN Hongjun,XIAO Xinyan. Preparation and properties of nano-TiO2/styrene-acrylate emulsion containing fluorine[J]. New Building Materials, 2011, 38(1) |
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| Authors: | DUAN Hongjun XIAO Xinyan |
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| Affiliation: | DUAN Hongjun,XIAO Xinyan(School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China) |
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| Abstract: | The core-shell organic/inorganic hybrid nano-TiO2/styrene-acrylate emulsion containing fluorine was successfully synthesized by in-situ emulsion polymerization,using nano-TiO2 treated with silane coupling agent,styrene(St),acrylate and organofluorine monomer(DFMA) as main materials.The influence of the amount of emulsifier,DFMA and TiO2 on emulsion properties was discussed,and the structure and properties of composite emulsion and their films were characterized by particle size analysis,contact angle(CA),Fo... |
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| Keywords: | TiO2 |
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