Influence of simulated and natural space environment factors on dielectric properties of epoxyamine polymers and polymer-based composite materials

被引:3
作者
Babaevsky, PG [1 ]
Kozlov, NA
Churilo, IV
Slagoda, VV
机构
[1] Tsyolkovsky Russian State Technol Univ, MATI, Moscow 121552, Russia
[2] Energiya Rocket Space Corp, Korolev 141070, Moscow Oblast, Russia
关键词
Radiation; Polymer; Composite Material; Thermal Cycling; Charged Particle;
D O I
10.1007/s10604-005-0016-6
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The variations of dielectric properties of epoxyamine polymers and polymer-based composite materials during ground-based tests imitating the influence of space environment factors and under the conditions of long-term active experiments using the ERE instrumentation onboard the Mir station are compared. The influence of space environment factors is shown to result in both reversible and irreversible changes of dielectric properties. The former are related to temperature effects and effects of charged particles. The latter are related to the removal of low-molecular components from the composition of binders in a vacuum, and to increasing density of polymeric lattice under an effect of thermal cycling and various types of radiations. It is established that the influence of ultra-violet radiation reveals itself, first of all, in changing temperature of samples, while the influence of irradiation by a flux of electrons is reduced to charge accumulation and discharges.
引用
收藏
页码:25 / 33
页数:9
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