用户论文(2006)：<b>《华东理工大学学报》</b>含氟丙烯酸酯乳液及膜表面性能

【中文摘要】 采用半连续滴加预乳化单体与引发剂水溶液的方法制备了平均粒径为120~130 nm的阴离子含氟丙烯酸酯乳液,并研究了含氟丙烯酸酯乳胶膜的表面性能。结果表明:乳胶膜的吸水率随氟单体含量的增大而下降,但氟单体的加入对膜的透湿率影响不大;乳胶膜经120°C处理后其对水的接触角随含氟单体含量的升高而增大,经160°C处理后氟原子在膜表面的富集增加一倍以上,膜表面自由能下降一倍,膜对水的接触角增大4倍,且提高温度可缩短热处理时间;热处理或含氟单体的加入可使丙烯酸酯膜表面粗糙度增加,从而使膜表面的拒水拒油性能提高。 【英文摘要】 Perfluoro octylacyloxyethyl methacrylate(FA) was synthesized and used in emulsion copolymerization with acrylates.The anionic emulsions of the copolymer were produced by semi continuing feed,and the range of the latex particle was in 120~130 nm.The surface properties of the latex film formed by casting were studied. The results show that the water absorption of the film is decreased with increasing of FA,but the water permeability of the film is not affected by the addition of the FA.The properties of the f...