Incorporation of kaolin fillers into an epoxy/polyamidoamine matrix for coatings

被引：28
作者：
Astruc, A. [1 ]
Joliff, E. [1 ]
Chailan, J. -F. [1 ]
Aragon, E. [1 ]
Petter, C. O. [2 ]
Sampaio, C. H. [2 ]
机构：
[1] Univ Sud Toulon Var, Lab MAPIEM, F-83957 La Garde, France
[2] Univ Fed Rio Grande do Sul, Ctr Tecnol, LAPROM, BR-90501970 Porto Alegre, RS, Brazil
来源：
PROGRESS IN ORGANIC COATINGS | 2009年 / 65卷 / 01期
关键词：
Epoxy coatings; Kaolin; Adsorption/surface treatment; Sodium polyacrylate; Dimethyldioctadecylammonium chloride; Microhardness; LAYERED SILICATE NANOCOMPOSITES; EPOXY-RESIN; MECHANICAL-PROPERTIES; FTIR SPECTROSCOPY; DIGLYCIDYL ETHER; POLYMER; ADSORPTION; COMPOSITES; CLAY; MONTMORILLONITE;
D O I：
10.1016/j.porgcoat.2008.11.003
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The toughening of epoxy resins with the addition of organic or inorganic compounds is of great interest nowadays, considering their large scale of applications. The present work reports the results of the incorporation of two kaolin samples of different particle sizes into a polymeric base containing diglycidyl ether of bisphenol A (DGEBA) epoxy resin with polyamidoamine as hardener. A general review of the influence of fillers, especially clay ones, on epoxy matrices has been made. A prior surface treatment of the kaolin particles with anionic and cationic agents, sodium polyacrylate (Na-PAA) and dimethyidioctadecylammoniurn chloride (DOCA), respectively, helped to improve their dispersion into the matrix. Fourier transform infrared (FTIR), TGA, Zeta potential and surface energy measurements were conducted in order to assess the effectiveness of surface treatments. Microstructural observations and image analysis were also well suited to analyse particle dispersion and size distribution into the polymeric matrix. Microhardness tests realised on epoxy/polyamidoamine/kaolin systems allowed the study of the influence of particles pigment volume concentrations (PVC) on their behaviour. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：158 / 168
页数：11
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