STUDY ON PREPARATION AND PROPERTIES OF NOVEL RESIN-BASED THERMAL PROTECTION STRUCTURES

Abstract

Abstract: According to the requirements on low cost and light-weight thermal protection structure and materials for space vehicles, a novel integrated resin-based thermal protection structure was proposed. The sandwich structure was prepared successfully by the optimization of materials selection and manufacturing process. It consists of high temperature carbon fiber reinforced polyimide composites as outer thermal protection layer, silica aerogels blanket as heat insulation layer, and high performance carbon fiber reinforced epoxy resin composites as internal bearing layer, respectively. The mechanical property and thermal protective performance were tested, and the influence of insulation layer thickness on the thermal protective performance was investigated. Experiment results show that the resin-based thermal protection structures have excellent compression properties. The integral structures still remain intact after the quartz lamp heating test, and the thermal insulation property can be improved with the increase of insulation layer thickness. The back temperature of the sample with 13 mm thick insulation layer was only about 100 ℃ after quartz lamp heating at 500 ℃ for 1500 s, exhibiting superior thermal protection performance.

Key words: resin-based thermal protection structure, integrated system, polyimide composites, aerogels, composites

CLC Number:

TB332

XIA Yu, WANG Dong, XU Kong-li, WU Xiao. STUDY ON PREPARATION AND PROPERTIES OF NOVEL RESIN-BASED THERMAL PROTECTION STRUCTURES[J]. Composites Science and Engineering, 2020, 0(10): 96-100.

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