Abstract
Abstract Adhesive bonding technology is the primary method for installing thermal control products on spacecraft. Studying the bonding methods of electric heaters at low temperatures has become particularly important. To validate the feasibility of GD-414 silicone rubber in bonding electric heaters at low temperatures, GD-414 silicone rubber tensile test specimens were designed and fabricated. After thermal testing, it was found that the peel strength and failure mode of the specimens changed after low-temperature storage at -120℃ and temperature cycling from -200℃ to 40℃. The peel strength of the specimens improved after pressure treatment, while the differences in peel strength between different metal substrates with the same roughness were not significant. The research findings demonstrate that GD-414 retains strong bonding performance even after low-temperature storage and temperature cycling, making it suitable for bonding electric heaters.
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