"Soft" polymer latexes stabilized by a mixture of zinc oxide nanoparticles and polymerizable surfactants: Binders for pigment printing
"Soft" polymer latexes stabilized by a mixture of zinc oxide nanoparticles and polymerizable surfactants: Binders for pigment printing
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DOI：
10.1016/j.porgcoat.2016.08.014
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发表时间：
2016-12-01
影响因子：
6.6
通讯作者：
Wei, Qing
中科院分区：
文献类型：
--
作者：
Gao, Dangge;Liang, Zhiyang;Wei, Qing
通过Pickering乳液聚合合成了“软”聚合物乳液。以单体为油相，以纳米氧化锌和可聚合表面活性剂烯丙氧基甲基壬基酚聚氧乙烯醚硫酸铵（DNS-86）的混合物为稳定剂制备O/W乳液，然后在O/W乳液的油相中进行单体自由基共聚，制备“软”聚合物乳液。讨论了O/W乳液和聚合物乳液的稳定性随DNS-86含量增加的变化规律。研究了DNS-86用量对聚合物膜耐水性的影响。将该聚合物乳液用作棉织物涂料印花粘合剂。随着DNS-86浓度的增加，乳液液滴变小，液滴尺寸变得更加均匀，聚合物胶乳的凝胶含量降低到几乎不变。透射电镜观察表明，氧化锌纳米粒子位于聚合物粒子的表面。DNS-86有利于提高聚合物膜的耐水性。与市售粘合剂印花相比，用该聚合物乳液印花的织物色差小，色牢度提高，防紫外线性能优异。然而，与使用商业粘合剂印花的棉织物相比，使用合成胶乳印花的棉织物的手感降低。(C)© 2016 Elsevier B. V.版权所有。
"Soft" polymer latexes were synthesized by Pickering emulsion polymerization. O/W emulsions were prepared using monomers as oil phase, and a mixture of zinc oxide nanoparticles and polymerizable surfactants ammonium allyloxtmethylate nonylphenol ethoxylates sulfate (DNS-86) as stabilizers, and then the "soft" polymer latexes were prepared by free radical copolymerization of monomers in oil phase of the O/W emulsions. Stabilities of both the O/W emulsions and the polymer latexes with an increase of DNS-86 were discussed. Effect of the dosages of DNS-86 on water resistance of the polymer films was reported. The polymer latex was applied as a binder for pigment printing of cotton fabrics. The emulsion droplets became smaller, the drop sizes became more homogeneous, and the gel contents of the polymer latexes decreased to almost constant with an increase of the DNS-86 concentration. TEM showed that some zinc oxide nanoparticles were located at the surface of the polymer particles. DNS-86 was conducive to improve water resistance of the polymer films. Fabric printed with the prepared polymer latex had smaller color difference, improved color fastness and excellent ultraviolet radiation shielding performance in comparison with that printed with commercial binder. However, hand feel of the cotton fabrics printed using the synthetic latex was reduced compared with that of the cotton fabrics printed using commercial binder. (C) 2016 Elsevier B.V. All rights reserved.