以甲基丙烯酸甲酯(MMA)和丙烯酸丁酯(BA)作为核层单体,甲基丙烯酸十二氟庚酯(G04)、MMA和BA做为壳层单体,以壬基酚聚氧乙烯醚硫酸铵(DNS-458)为反应型乳化剂,采用无皂乳液聚合的方法制备出含氟聚丙烯酸酯乳液织物整理剂,并用其对亚麻织物进行整理。通过红外光谱(FT-IR)、X射线光电子能谱(XPS)、扫描电镜(SEM)、接触角测定仪等对制备的乳液进行表征与分析。实验结果表明:无皂乳液最佳制备条件为有机氟单体用量12%(wt,质量分数,下同),DNS-458用量3%,经所制备的无皂乳液整理的亚麻织物对水接触角达到135.85°,表现出良好的拒水效果;亚麻织物断裂强力由492N升高为552N,弯曲刚性由5.26cN/mm降低至2.29cN/mm,亚麻织物的折痕回复角由32°增大到58°,织物的服用性能有较明显的改善。
The fluorine-containing polyacrylate core-shell emulsion was prepared by soap-free emulsion synthesis technology with methyl methacrylate (MMA) and and butyl acrylate (BA) as the core monomers,and dodecafluoroheptyl methacrylate (G04),MMA and BA as the shell monomers.The prepared emulsions were characterized and analyzed by infrared spectroscopy (FT-IR),X-ray photoelectron spectroscopy (XPS),scanning electron microscopy (SEM),contact angle tester,etc.The results shown that when the organic fluorine content accounts for 12% of the total monomer mass and the amount of soap-free emulsifier accounts for 3% of the total monomer mass,the water contact angle of the finished linen fabric was 135.85°,showed good water repellent effect.The breaking strength of linen fabric increased from 492N to 552N,bending rigidity decreased from 5.26cN·mm-1 to 2.29cN·mm-1,the crease recovery angle of linen fabric increased from 32°to 58°,and the wearability of the fabric improved obviously.
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