Intelligent vanadium dioxide solar temperature control coating

A technology of vanadium dioxide and solar heat, applied in epoxy resin coatings, polyester coatings, rubber derivative coatings, etc., can solve the problems of inability to automatically adjust the temperature, low efficiency of reflecting solar infrared light, etc., and improve production Good safety, can opening performance and construction performance, energy saving effect

Inactive Publication Date: 2005-06-01
SUN YAT SEN UNIV
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Problems solved by technology

The common disadvantage of these infrared thermal insulation coatings is that the efficiency of reflecting infrared light from th...

Method used

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Embodiment 1-7

[0023] The vanadium dioxide solar thermal intelligent temperature control coating is composed of polymer film-forming materials, dispersants, composite pigments, toners, solvents and plasticizers. The weight of each component is shown in Table 1.

[0024] (V 1-x m x )O 2 Synthesis method of powder:

[0025] with V 2 o 5 , the reaction of oxalic acid and hydrochloric acid to prepare VOCl 2 solution, then this solution was mixed with ammonium bicarbonate or ammonium carbonate in CO 2 Stirring and reacting under air protection to synthesize vanadyl (IV) basic ammonium carbonate precursor. If the molybdenum-doped precursor is prepared, the VOCl 2 Add MoCl to the solution 2 Or ammonium molybdate reduction product, carry out synthesis reaction as above. If the tungsten-doped precursor is prepared, it can be used in VOCl 2 Add WOCl to the solution 2 , and react as above; or add ammonium tungstate solution to ammonium bicarbonate or ammonium carbonate, and react as above. ...

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Abstract

The present invention present invention relates to one kind of intelligent solar heat temperature controlling phase change paint of vanadium dioxide and dopant. The paint consists of polymer filming material, dispersant, composite pigment, color regulator, solvent and plasticizer. Being different from traditional solar heat reflecting paint, it can reflect the infrared light of whole waveband at the temperature over the phase change temperature Tc of (V1-xMx)O2 to result in high reflecting efficiency and high temperature-lowering effect; and can pass the infrared light of whole waveband at the temperature below the phase change temperature Tc to result in high heating effect, so as to realize intelligent temperature control. The paint of the present invention may be coated to the surface metal, concrete, timber, foamed plastic, etc. and widely used for building, vehicle, ship, oil reservoir and other facilities exposed to sunlight.

Description

technical field [0001] The invention relates to an intelligent temperature control coating for solar heat automatic reflection and transmission, in particular to a VO 2 The solar heat automatic reflective and transmissive intelligent temperature control coating modified with Mo and W dopant powder. its chemical composition [0002] technology field. Background technique [0003] Energy saving, environmental protection, intelligence and safety are the themes of new material development in the new century. In the field of coatings, there are currently many solar heat-reflecting and heat-insulating coatings, such as Japanese patent publication JP 98-120946, German patent DE 19501114 and Chinese patent announcements CN 1030142, CN 1204672, CN 1405248A and CN 1434063A. The common disadvantage of these infrared thermal insulation coatings is that the efficiency of reflecting infrared light from the sun is not high, and the reflectivity of most infrared light is lower than 75%. ...

Claims

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Application Information

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IPC IPC(8): C09D5/00C09D115/02C09D133/00C09D163/00C09D167/00
Inventor 郑臣谋雷德铭储向峰
Owner SUN YAT SEN UNIV
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