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通过添加马来酸酐十二烷基单酯作为可聚合表面活性剂,改进微乳液聚合法,获得了低黏度的聚合物微乳液,该微乳液可作为颜料型皮革数码喷墨印花粘合剂。通过透射电子显微镜、差示扫描式量热法、黏度测量、粒度分析以及皮革数码喷墨印花试验等手段,研究了功能单体N-甲基丙烯酰胺和马来酸酐十二烷基单酯、单体配比以及固含量对微乳液性能的影响。结果表明:适于喷墨印花的微乳液平均粒径为50nm,单分散性良好,黏度低,并且微乳液成膜后的玻璃化转变温度低于-30℃。将优化的微乳液粘合剂与商品颜料浆配制成喷墨印花墨水,其喷印性能稳定,形成的皮革花纹精细、清晰。
By adding maleic anhydride dodecyl monoester as a polymerizable surfactant and improving the microemulsion polymerization method, a low viscosity polymer microemulsion is obtained, which can be used as a pigmented leather digital ink jet printing adhesive. By means of transmission electron microscopy, differential scanning calorimetry, viscosity measurement, particle size analysis and leather digital ink jet printing test and other means, the functional monomers N-methacrylamide and maleic anhydride dodecyl monoester, The effects of monomer ratio and solid content on the microemulsion performance. The results showed that the average particle size of the microemulsion suitable for ink jet printing was 50nm, the monodispersity was good, the viscosity was low, and the glass transition temperature of the microemulsion was less than -30 ℃. The optimized microemulsion binder and commercial pigment paste formulated inkjet printing inks, the printing performance is stable, the formation of leather patterns fine and clear.