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本文研究了以甲基丙烯酸甲酯、丙烯酸丁酯为软硬单体、丙烯酸为功能单体,羧甲基纤维素钠CMC-Na为稳定剂,采用无皂乳液聚合的方法,制备Pickering丙烯酸酯乳液。首先考察了不同配比的CMC-Na对丙烯酸酯乳液性能的影响,然后测定了羧甲基纤维素钠的接触角,并对合成的乳液进行了红外表征,最终得到羧甲基纤维素钠的接触角为36.59°,并且在羧甲基纤维素钠的配比为3%时,乳液的固含量为24.12%,转化率为96.49%,粒径为152nm,施胶度为37s,此时制得的丙烯酸酯乳液的稳定性和抗水性最佳。
In this paper, methyl acrylate, butyl acrylate as a hard and soft monomer, acrylic acid as a functional monomer, sodium carboxymethyl cellulose CMC-Na as a stabilizer, soap-free emulsion polymerization method, Preparation Pickering Acrylates Emulsion. First of all, the effects of different proportions of CMC-Na on the properties of acrylate emulsion were investigated. Then, the contact angle of sodium carboxymethylcellulose was measured and the synthesized emulsion was characterized by IR. Finally, sodium carboxymethylcellulose The contact angle is 36.59 °, the solid content of the emulsion is 24.12%, the conversion is 96.49%, the particle diameter is 152 nm and the sizing degree is 37 s when the ratio of sodium carboxymethyl cellulose is 3% The resulting acrylic emulsion has the best stability and water resistance.