Variable emissivity and variable reflectivity electrochromic intelligent thermal control coating and preparation method

An electrochromic and thermal control coating technology, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems of less research on changes in reflectivity and emissivity of intelligent thermal control coatings, etc. Achieve the effect of meeting the needs of intelligent thermal control, degrading the potential barrier, and short response time
CN102176102AActive Publication Date: 2011-09-07AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
Publication Date
2011-09-07

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Abstract

The invention discloses a variable emissivity and variable reflectivity electrochromic intelligent thermal control coating and a preparation method. Due to the adoption of conductive polymer advanced doping control and multi-layer composite photoelectric matching ways, initial electrochromic voltage is effectively reduced, and variation ranges of reflectivity and emissivity of an electrochromic active layer are widened. The prepared electrochromic coating adopts DC drive, ensures the driving voltage of lower than 2V, and has the reflectivity variations of more than 0.4 and the emissivity variations of more than 0.25; and after positive and negative 100-DC temperature alternation is performed on the coating for 100 times, the reflectivity and emissivity variations of the coating still meetthe indexes, so the coating substantially satisfies the needs of aerospacecrafts in intelligent thermal control.
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Description

technical field

[0001] The invention relates to an electrochromic conductive polymer thermal control coating with variable emissivity and variable reflectance and a preparation method thereof, belonging to the technical field of intelligent thermal control coating preparation. Background technique

[0002] The thermal control coating material is the key material to realize the safe operation of the spacecraft exposed to sunlight for a long time or in space where sunlight cannot reach, and to ensure the effective regulation of the temperature in the cabin. The solar spectrum reflection characteristics or infrared emission characteristics of traditional thermal control coatings are fixed and cannot change with changes in ambient temperature, making it difficult to meet the adaptive temperature control requirements of spacecraft on the front and back of the sun. The electrochromic thermal control coating material with adjustable reflectivity and emissivity just makes up for the...

Claims

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