SOLAR REFLECTOR CLASS TEMPERATURE-CONTROLLED COATING COMPOSITION

摘要

FIELD: chemistry. ^ SUBSTANCE: invention relates to space materials science and optical engineering, particularly to a solar reflector class temperature-controlled coating composition meant for use in spacecraft passive thermal control systems. Said composition contains modified liquid potassium glass with silica modulus of 3.3-3.8 at density 1.204-1.216 g/cm3 as binder in amount of 26.4-28.7 wt %, pigment - zinc-gallium oxide with calculation formula ZnGaO1+n, where n=0.0064 in amount of 42.3-45.2 wt % and a solvent - distilled water in amount of 28.4-29.0 wt %. The "ûÜ"modifier used is an organic water-base copolymer based on latex. ^ EFFECT: composition enables to obtain solar reflector class temperature-controlled coating with high resistance to space radiation, low coefficient of absorption of solar radiation while retaining high radiation capacity, stabilising operation of communication electronics equipment and onboard systems of spacecraft, which prolongs the period for active existence of spacecraft on high orbits and reduces its weight characteristics. ^ 3 tbl