The invention provides a high-heat-conduction and heat-dissipation integrated composite thermal control film for satellites. The high-heat-conduction and heat-dissipation integrated composite thermal control film comprises a protective layer, a nano thermal control film and a graphite film. The nano thermal control film comprises a protective layer based on the surface of the film and a three-dimensional micro-nano structure, the graphite film is subjected to hot-pressing packaging by a hot melt adhesive, and the graphite film and the nano thermal control film are bonded together through the hot melt adhesive to form the novel integrated composite thermal control film with high heat conduction and heat dissipation. Therefore, the outer surface of the satellite body has the characteristics of high solar spectrum section reflectivity, high infrared spectrum section emissivity and high thermal conductivity, the uniformity of a temperature field of the whole satellite is improved, the reliability of a single machine in a cabin is improved, and the product is short in production period and convenient to implement. According to the invention, the problems of high heat flux density, complex illumination parts and rapid development of future low-orbit satellite constellations are solved, the production cost is obviously reduced, and commercialized batch production of constellation satellites is facilitated.
本发明提供了一种涉及卫星用高导热散热一体化复合热控薄膜,包括防护层、纳米热控薄膜、石墨膜。所述纳米热控薄膜包括基于薄膜表面的防护层和三维微纳结构,石墨膜由热熔胶热压封装,通过热熔胶将其与纳米热控薄膜粘贴在一起形成高导热散热新型一体化复合热控薄膜,本发明通过硅橡胶粘贴在卫星舱板或天线等星体外表面,从而使星体外表面具有对太阳光谱段高反射率、红外谱段高发射率、高导热率特性,提升整星温度场均匀性,从而提高舱内单机可靠性,且该产品生产周期较短,实施便捷。本发明解决了未来低轨卫星星座的高热流密度、复杂光照件、快速研制的难题,生产成本显著降低,有助于星座卫星的商业化批量生产。
Heat conduction and heat dissipation integrated thermal control film for satellites
卫星用导热散热一体化热控薄膜
2024-11-08
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B82Y Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen , SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES |
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