Influence of Al2O3 and CuO nanoparticles on the thermal properties of polyester- and epoxy-based nanocomposites

被引：8
作者：
Basilio de Souza, Juliana Primo [1 ]
Laredo dos Reis, Joao Marciano [1 ]
机构：
[1] Univ Fed Fluminense, Lab Theoret & Appl Mech LMTA, Mech Engn Post Grad Program PGMEC, Rio De Janeiro, Brazil
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2015年 / 119卷 / 03期
关键词：
Polymer matrix; Nanoparticles; Nanocomposite; thermo-physical properties; T-g; DSC; DMA; THERMOOXIDATIVE DEGRADATION; KINETICS; DECOMPOSITION;
D O I：
10.1007/s10973-014-4335-9
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The modification of polymer properties through the addition of nanoparticles has lead to the development of the so-called nanocomposites. The purpose of this study was to investigate the effect of Al2O3 and CuO nanoparticles on the thermo-physical properties of epoxy- and polyester-based nanocomposites. Analysis was carried out for different volume fractions of nanoparticles, ranging from 2.5 to 10 %. The results showed that the glass transition temperature (T (g)) varies differently on each matrix and nanoparticles sizes. However, the obtained T (g) showed no significant change with nanoparticle concentration. The cross-link density studied by DMA for each nanocomposite shows that Al2O3 fillers are responsible for the decrease in cross-link density, while CuO nanoparticles contribute to improve this property. A significant improvement of thermal stability of epoxy and unsaturated polyester resins containing CuO nanoparticles was observed.
引用
收藏
页码：1739 / 1746
页数：8
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