Thermal analysis of hybrid materials prepared by γ-irradiation

被引：4

作者：

Gomes, S. R. ^{[1
]}

Margaca, F. M. A. ^{[1
]}

Ferreira, L. M. ^{[1
]}

Salvado, I. M. Miranda ^{[2
]}

Falcao, A. N. ^{[1
]}

机构：

[1] Nucl & Technol Inst, Dept Phys, P-2686953 Sacavem, Portugal

[2] Univ Aveiro, CICECO, Dept Glass & Ceram Engn, P-3810193 Aveiro, Portugal

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2009年 / 95卷 / 01期

关键词：

hybrid materials; gamma-irradiation; PDMS-based materials; thermal properties;

D O I：

10.1007/s10973-008-9223-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Hybrid materials were prepared by gamma-irradiation of a mixture of polydimethylsiloxane (PDMS), with tetraethylorthosilicate (TEOS) and zirconium propoxide (PrZr), using a Co-60 gamma source, without any addition of solvents. Thermogravimetry, differential scanning calorimetry and X-ray diffraction measurements showed that the obtained hybrids are amorphous materials of the nanocomposite type. The results highlighted the different influence of each of the metallic alkoxides on the hybrid structure. The material rupture temperature, associated with the degradation of the organic component, depends mainly on the TEOS content, whereas the inorganic component structural stability depends on the relative PrZr content in the alkoxides mixture.

引用

页码：99 / 103

页数：5

共 18 条

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