有机氟改性苯丙乳液合成及其成膜性能研究

Preparation of Styrene-acrylic Emulsion and Its Application on Filter Paper

合成了-种有机氟改性苯丙乳液，研究了乳化剂用量、引发剂用量、交联单体用量、氟单体用量对乳液稳定性及附着力的影响。结果显示，乳化剂用量为0．8％-1．0％，引发剂用量为0．8％，交联单体用量为3％，氟单体用量为16％时，制备的改性苯丙乳液具有良好的稳定性，在马口铁上的附着力为11．7MPa。膜层具有良好的耐水性和耐油性，铅笔硬度为2H，与水之间的接触角为118．2°。所制备的膜层在油水分离中具有-定的应用前景。

A modified styrene-acrylic emulsion was synthesized, and the effect of the weight ratios of emulsifier, initiator, erosslinking agent and fluorine monomer on the stability and adhesion of the emulsion were evaluated. The results showed that, in a typical reaction process with following conditions： the amount of emulsifier was 0.8- 1.0%; the usage of APS was 0.8%; the usage of erosslinking monomer was 3%; the usage of fluorine monomer was 16%, the obtained emulsion was stable and the adhesion on tinplate was 11.7 MPa. The properties of films prepared from the emulsion were as follow： excellent water and oil resistance with a pencil hardness of 2H, the contact angle between water droplet and the film of 118.2°. The study presents that the film has some potential applications in the oil-water separation.