乳化剂对核壳含氟苯丙乳胶粒形貌及涂膜润湿性的影响

doi:10.3969/j.issn.1000-565X.2011.01.002

华南理工大学学报（自然科学版） ›› 2011, Vol. 39 ›› Issue (1): 7-11.doi: 10.3969/j.issn.1000-565X.2011.01.002

乳化剂对核壳含氟苯丙乳胶粒形貌及涂膜润湿性的影响

徐桂龙邓丽丽文秀芳皮丕辉郑大锋程江杨卓如

华南理工大学化学与化工学院，广东广州51064

收稿日期:2010-06-21 修回日期:2010-08-31 出版日期:2011-01-25 发布日期:2010-12-01
通信作者: 杨卓如(1947一)，男，教授，博士生导师，主要从事精细化工研究 E-mail:zhryan@scut.edu.cn
作者简介:徐桂龙(1984一)，男，博士生，主要从事精细化工研究
基金资助:
广东省科技计划项目(2009B011000010)；华南理工大学中央高校基本科研业务费资助项目(2009ZM0288)A

Effect of Emulsifiers on Morphology and Film Wettability of Core-Shell Fluorine-Containing Poly-Styrene-Acrylate Latex

Xu Gui-long Deng Li-li Wen Xiu-fang Pi Pi-hui Zheng Da-feng Cheng Jiang Yang Zhuo-ru

South China university of technology and engineering college chemistry, guangdong guangzhou 51064

Received:2010-06-21 Revised:2010-08-31 Online:2011-01-25 Published:2010-12-01
Contact: 杨卓如(1947一)，男，教授，博士生导师，主要从事精细化工研究 E-mail:zhryan@scut.edu.cn
About author:徐桂龙(1984一)，男，博士生，主要从事精细化工研究
Supported by:
广东省科技计划项目(2009B011000010)；华南理工大学中央高校基本科研业务费资助项目(2009ZM0288)A

摘要/Abstract

摘要： 采用预乳化半连续种子乳液聚合方法,选用3种乳化剂体系（SDS/OP-10,DNS-86,DNS-86与含氟乳化剂复配）制备含氟苯丙乳液,研究其对合成核壳含氟苯丙乳液的乳胶粒形貌和乳液涂膜疏水疏油性的影响.利用透射电镜、红外光谱、X射线光电子能谱和水/油接触角测试对所制备乳液的乳胶粒形貌、化学组成、涂膜表面元素信息和疏水疏油性进行表征.结果表明：采用SDS/OP-10乳化体系制备得到的乳液乳胶粒呈雪人型结构,而选用DNS-86乳化剂体系、DNS-86与含氟乳化剂复配的乳化剂体系制备得到的乳液的乳胶粒呈规整的核壳结构;具规整核壳结构乳胶粒的乳液有利于乳液涂膜表面氟元素的富集,在乳胶粒形貌和乳化剂体系的共同作用下,DNS-86和含氟乳化剂复配的乳化剂体系具有最好的疏水疏油性.

关键词: 乳化剂, 含氟乳液, 乳胶粒形貌, 核壳结构

Abstract:

Fluorine-containing poly-styrene-acrylate latex was prepared by means of pre-emulsifying semi-conti-nuous seed emulsion polymerization in three different emulsifier systems such as SDS/OP-10,NDS-86 and DNS-86/fluorine-containing emulsifier.Then,the effects of the emulsifiers on the morphology of the latex particles and the hydrophobic/oleophilic properties of the latex film were investigated.Moreover,the morphology of latex particles,the chemical composition,the elements on the film surface and the hydrophobic/oleophilic properties of the film were characterized respectively by means of TEM,FT-IR,XPS and water/oil contact angle test.The results show that the latex particles prepared in SDS/OP-10 emulsifier system display a snowman structure,while those prepared in DNS-86 or DNS-86/fluorine-containing emulsifier system display an uniform core-shell structure,which benefits the enrichment of fluorine on the film surface,and that the film of the latex prepared in DNS-86/fluorine-containing emulsifier system possesses the best hydrophobic and oleophobic properties due to the morphology of latex particles and the adopted emulsifiers.

Key words: surfactants, fluorine-containing emulsion, latex morphology, core-shell structure

徐桂龙邓丽丽文秀芳皮丕辉郑大锋程江杨卓如. 乳化剂对核壳含氟苯丙乳胶粒形貌及涂膜润湿性的影响[J]. 华南理工大学学报（自然科学版）, 2011, 39(1): 7-11.

Xu Gui-long Deng Li-li Wen Xiu-fang Pi Pi-hui Zheng Da-feng Cheng Jiang Yang Zhuo-ru. Effect of Emulsifiers on Morphology and Film Wettability of Core-Shell Fluorine-Containing Poly-Styrene-Acrylate Latex[J]. Journal of South China University of Technology (Natural Science Edition), 2011, 39(1): 7-11.

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乳化剂对核壳含氟苯丙乳胶粒形貌及涂膜润湿性的影响

Effect of Emulsifiers on Morphology and Film Wettability of Core-Shell Fluorine-Containing Poly-Styrene-Acrylate Latex

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