目的 确定含氟丙烯酸酯共聚物乳液的最佳配方， 研究其涂膜表面的疏水疏油性、 热力学稳定性等性能。方法 以甲基丙烯酸甲酯（MMA）、 丙烯酸丁酯（BA）、 丙烯酸（AA）为原料， 丙烯酸十三氟辛酯（PFOA）为含氟单体， 过硫酸铵（APS）为引发剂， 烷基酚聚氧乙烯醚（OP-10）和十二烷基磺酸钠（SDS）为复合乳化剂， 去离子水为分散介质， 采用半连续种子乳液聚合法制备核壳型含氟丙烯酸酯共聚物乳液。通过CA， FTIR， DSC， TG和AFM等仪器， 对共聚物涂膜的疏水疏油性能、 热力学性能及表面化学成分进行表征。结果 当乳化剂（OP-10与SDS的质量比为2∶1）的质量分数为3%、 引发剂（APS）的质量分数为0.6%、 丙烯酸十三氟辛酯（PFOA）的质量分数为9%时， 单体转化率最高、 凝胶率最低， 涂膜对水和十六烷的接触角分别为114°和85°。结论 合成的乳液具有良好的疏水疏油性和热力学稳定性等性能， 适合油墨罐内壁涂料等产品。

Objective To identify the best formula of fluorinated acrylate copolymer emulsion, and investigate the performance parameters such as hydro-oleophobic and thermodynamic properties. Methods A series of fluorinated acrylate copolymer latex with core–shell structure were synthesized by semi-continuous seeded emulsion polymerization method using methyl methacrylate（MMA） , butyl acrylate（BA）and acrylic acid（AA）as the raw material, PFOA as the fluorinated acrylate monomer, ammonium persulfate （APS） as the initiator, sodium dodecyl sulfate （SDS） and polyoxyethylene octyl phenyl ether（OP-10）as the complex emulsifier and taking water as the dispersion medium. The hydro-oleophobic and thermodynamic properties as well as the surface chemical components were characterized by contact angle goniometer（CA） , fourier transform infrared （FTIR） spectroscopy, differential scanning calorimetry （DSC） , thermogravimetry analysis（TG）and atomic force microscopy（AFM） , respectively. Results The results showed that when the dosage of emulsifier was 3%, the initiator content was 0.6%, and the mass fraction of fluorinated monomer was 9%, the monomer conversion was the highest and the gel rate was the lowest, while the water contact angle and hexadecane contact angle reached 104° and 71° , respectively. Conclusion The emulsion shows good performance including hydro-oleophobic and thermodynamic properties, and is therefore suitable as inner wall coating of the ink tank and other products.