“…Experimental data on degradation of epoxy resin composites during SETAS, LDEF, MEEP, SARE, AORP, DSPSE, ESEM, EuReCa, HST, MDIM, MIS and MPID missions in LEO [15] are available. However, because detailed investigation of the kinetics of reactions in the composites in space is expensive and difficult, a number of investigations were done in laboratory free space environment simulators, where individual factors or combinations of factors prevalent in free space are simulated [16][17][18]. In an attempt to simulate the combinations of irradiations by various well particle and photon fluxes which might be encountered in free space, most simulators involve a combination of plasma chambers or ion accelerators with an electron gun, UV-VUV and/or X-ray sources.…”