有机氟防水剂的合成与应用

Synthesis and application of organic fluorine water proofing agent

以丙烯酸十二氟庚酯(G04),甲基丙烯酸甲酯(MMA),丙烯酸丁酯(BA)为主要单体,脂肪醇聚氧乙烯醚AEO-9和十二烷基苯磺酸钠(SDBS)为复配乳化剂,过硫酸铵(APS)为引发剂,制备含氟丙烯酸酯共聚物.探讨了n(BA)∶n(MMA)、引发剂的种类及用量、乳化剂种类及用量、反应温度、反应时间等因素对含氟丙烯酸酯共聚物性能的影响,并将自制的含氟丙烯酸酯聚合乳液对棉织物进行整理,结果表明:当n(BA)∶n(MMA)=3∶2,APS用量0.6%,乳化剂为m(SDBS)∶m(AEO-9)=3∶2,用量6%,温度为75℃,预乳液滴加时间为3.5h,后续反应时间为1 h时,所制备的含氟丙烯酸酯共聚物具有良好的防水透湿性能.

The fluorinated acrylate copolymer was prepared using acrylic dodecafluoroheptyi ester （G04）, methyl methacrylate （MMA）, and butyl acrylate （BA） as the main monomers, aliphatic alcohols polyoxyethylene ether （AEO-9） and sodium dodecyl benzene sulfonate （SDBS） as compound emulsifier, and ammonium persulfate （APS） as initiator. The mola ratio of BA and MMA, the type and usage of initiator and emulsifier, temperature, time impact on the performance of the fluorinated acrylate copolymer were discussed. The cotton fabric was finished with the serf-made fluorinated acrylate polymer emulsion. The results showed that, when the mola ratio of BA and MMA was 3：2, the amount of initiator was 0.6%, the mass ratio of SDBS and AEO-9 was 3：2, the amount of emulsifier was 6%, temperature 75 ℃, the dripping time of pre-emulsion was 3.5 h, the subsequent reaction time was 1 h, the waterproofing and breathable performance of the prepared fluorinated acrylate copolymer were optimal.