Study of multivesiculated polyester particles synthesis by double emulsion process

被引：6
|
作者：
Dias, Angela [1 ,2 ,3 ]
Fidalgo, Joana [1 ]
Machado, Joao [2 ]
Moniz, Jorge [3 ]
Mendes, Adelio M. [1 ]
Magalhaes, Fernao D. [1 ]
机构：
[1] Univ Porto, Fac Engn, Dept Engn Quim, LEPAE, P-4200465 Oporto, Portugal
[2] CIN SA, P-4471909 Maia, Portugal
[3] Resiquim Resinas Quim SA, P-2725397 Mem Martins, Portugal
来源：
EUROPEAN POLYMER JOURNAL | 2013年 / 49卷 / 03期
关键词：
Waterborne dispersions; Particle size distribution; Hollow particles; Opacity;
D O I：
10.1016/j.eurpolymj.2013.01.004
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This work studies the synthesis of multivesiculated particles (MVPs) from a w/o/w double emulsion comprising water and unsaturated polyester dissolved in styrene. These particles can be used as opacifying agents in paint formulations, due to light refraction within the air-containing voids, after water evaporation. The effect of some key variables was analyzed: time of dispersion and concentrations of added amine, polyester and protective colloids. The final products were characterized in terms of particle size distribution, vesicle morphology and dry film opacity. All the studied variables were shown to play a role in the quality of vesiculation. The underlying mechanisms were proposed, allowing for a better understanding of this sparsely studied process. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：664 / 674
页数：11
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