壳层厚度对中空苯丙乳胶粒结构形态及遮盖性的影响

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英文篇名：Effect of Shell Thickness on Morphology and Opacity Ability of Hollow Styrene Acrylic Latex Particles 作者：袁腾 ; 梁斌 ; 黄家健 ; 杨卓鸿 ; 邵庆辉 英文作者：YUAN Teng;LIANG Bin;HUANG Jiajian;YANG Zhuohong;SHAO Qinghui;College of Materials and Energy,South China Agricultural University;School of Chemistry and Chemical Engineering,South China University of Technology; 关键词：中空苯丙乳胶粒 ; 三层交联型碱溶胀法 ; 层厚 ; 结构形态 ; 遮盖性 ; 粒度分布 英文关键词：hollow styrene acrylic latex particle;;three-layer cross-linking alkali swelling;;thickness;;morphology;;opacity ability;;size distribution 中文刊名：CLDB 英文刊名：Materials Reports 机构：华南农业大学材料与能源学院;华南理工大学化学与化工学院; 出版日期：2019-02-25 出版单位：材料导报 年：2019 期：v.33 基金：国家自然科学基金(21808070);; 广东省自然科学基金(2018A030310349);; 广东省科技计划项目(2016A010103027);; 广州市科技计划项目(201803030003);; 佛山市科技创新项目(2016AG101695);; 中国博士后科学基金(2016M602471);; 广东省绿色化学产品技术重点实验室开放基金项目(GC201813)~~ 语种：中文; 页：CLDB201904033 页数：5 CN：04 ISSN：50-1078/TB 分类号：159-163

摘要

在利用三层交联型碱溶胀法制备中空苯丙乳胶粒的基础上,采用粒径分析仪、粘度计、扫描电镜(SEM)、透射电镜(TEM)和紫外-可见分光光度计(UV-Vis spectrophotometry)等测试方法考察了壳层厚度对中空乳胶粒结构形态和遮盖性的影响。研究结果表明,壳层的厚度对中空聚合物乳胶粒的形态和遮盖性具有重要影响,随着壳层厚度的增加,乳胶粒粒径先减小后增大,并在壳/中间层包覆核的比值等于7时达到最小值,乳液粘度也一直减小。同时,在壳层厚度增加的过程中,中空聚合物乳胶粒表面粗糙程度逐渐降低,破裂和塌陷的乳胶粒逐渐减少,遮盖性先增强后减弱。壳/中间层包覆核的最佳比值为7～9。
        Based on the preparation of hollow styrene-acrylic latex particles by three-layer cross-linking alkali swelling method,in this work the effects of shell thickness on morphology and opacity ability of hollow polymer latex particles were investigated via characterizations of particle size analysis,viscosity measurement,SEM,TEM and UV-Vis spectrophotometry. The results confirmed the significant effect of shell layer thickness on the hollow latex particles. An increasing shell thickness can result in a biphasic(increase → decrease) change in size of the latex particles,which has a minimum value while shell/intermediate layer thickness ratio is 7,and also a monotonically decreasing latex viscosity. Moreover,when the shell thickness increases,the hollow polymer latex particles undergo a decrease of surface roughness,less rupture and collapse,and a"rise and fall"change in opacity ability. The most satisfactory shell/intermediate layer ratio of the latex were determined to be 7—9.

引文

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