[1]张震乾,何剑虹,谢 波.复合乳化剂在制备纳米乳胶粒子中的作用[J].常州大学学报(自然科学版),2016,(01):6-11.[doi:10.3969/j.issn.2095-0411.2016.01.002]
　ZHANG Zhenqian,HE Jianhong,XIE Bo.Function of Complex Emulsion in Preparation of Nano Latex Particles[J].Journal of Changzhou University(Natural Science Edition),2016,(01):6-11.[doi:10.3969/j.issn.2095-0411.2016.01.002]
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复合乳化剂在制备纳米乳胶粒子中的作用()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年01期
页码:
6-11
栏目:
材料科学与工程
出版日期:
2016-01-28

文章信息/Info

Title:
Function of Complex Emulsion in Preparation of Nano Latex Particles
文章编号:
2095-0411(2016)01-0006-06
作者:
张震乾; 何剑虹; 谢 波
常州大学 材料科学与工程学院,江苏 常州 213164
Author(s):
ZHANG Zhenqian;  HE Jianhong;  XIE Bo
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
关键词:
半连续乳液聚合;  反应性乳化剂;  纳米乳胶粒子;  甲基丙烯酸甲酯
Keywords:
semibatch emulsion polymerization;  reactive emulsifier;  nano latex particle;  methyl methacrylate
分类号:
TQ 316.334
DOI:
10.3969/j.issn.2095-0411.2016.01.002
文献标志码:
A
摘要:
以烯丙氧基壬基酚聚氧乙烯醚硫酸铵(ANS)和十二烷基硫酸钠(SDS)为乳化剂,甲基丙烯酸甲酯(MMA)为单体,进行饥饿滴加半连续乳液聚合,制备了PMMA纳米乳胶粒子。考察了ANS和SDS用量对聚合瞬时转化率、总转化率、乳胶粒子粒径和粒子数目的影响,并用Zeta电位值讨论了纳米乳液的稳定性。结果表明:MMA单体瞬时转化率在79%以上,聚合过程符合饥饿条件下半连续乳液聚合的特征。在0.8% ANS和0.9% SDS乳化剂作用下,最终纳米乳胶粒子的体均粒径为41.1 nm,粒子数目达到11.2×1018/L,乳液稳定性良好,固含量达到了32.0%。从以上结果分析,反应性乳化剂ANS可以改善单体饥饿滴加半连续聚合过程的稳定性。
Abstract:
Nano latex particles were synthesized by methyl methacrylate(MMA)monomer-starved semibatch emulsion polymerization, using ammonium allyloxtmethylate nonylphenol ethoxylates sulfate(ANS)and sodium dodecyl sulfate(SDS)as surfactant. Effects of ANS and SDS dosages on MMA instantaneous conversions, total conversion and latex particle size and number were discussed. The nano latex stability was measured based on the Zeta potential value. The results show the MMA instantaneous conversion was above 79%, it was one of characterization of starved feed semibatch emulsion. When the amount of ANS and SDS was 0.8% and 0.9%, respectively, the volume average particle size of final nano latex particle was 41.1 nm; the particle number in a unit volume was 11.2×1018 /L. The final latex was in the good stability; and the solid content was 32.0%. Based on the results obtained above, the ANS as reactive emulsifier can improve the latex stability in the monomer-starved semibatch emulsion polymerization.

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备注/Memo

备注/Memo:
基金项目:江苏省创新基金项目(BY2014037-06)。作者简介:张震乾(1973—),男,江苏江阴人,博士,副教授,主要从事乳液聚合和聚合反应工程研究。
更新日期/Last Update: 2016-01-28