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Vanadium dioxide sun heat reflection intelligent temp controll high polymer film

A technology of vanadium dioxide and high polymer, which is applied in the field of solar heat automatic reflection and transmission intelligent temperature control high polymer film, which can solve the problems such as the inability to automatically adjust the temperature, achieve the effects of improving production safety, protecting the environment, and broad application prospects

Inactive Publication Date: 2005-06-08
SUN YAT SEN UNIV
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AI Technical Summary

Problems solved by technology

Existing solar heat reflection and thermal insulation polymer films only reflect infrared light, but do not transmit infrared light, so they cannot automatically adjust the temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0021] Vanadium dioxide intelligent temperature control film is composed of high polymer, antioxidant or thermal oxygen stabilizer, composite pigment, anti-ultraviolet stabilizer, plasticizer and nucleating agent, and the weight of each component is shown in Table 1. .

[0022] (V 1-x m x )O 2 Synthesis method of powder:

[0023] 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 carbonat...

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PUM

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Abstract

A high polymer film with intelligent temp control function by reflecting solar heat or not is prepared from the phase-change material (VO2 and its doped powder), high polymer, antioxidizing agent or thermal O2 stabilizer, composite pigment, anti-UV stabilizer, plasticizer and nucleator. It features that full-band infrared light can be reflected when the temp is higher than its phase-change temp or not when the temp is lower than its phase-change temp. It can be used for building, green house, car, ship, etc.

Description

technical field [0001] The invention relates to an intelligent temperature-controlling polymer film for solar heat automatic reflection and transmission, in particular to a VO 2 The solar heat self-reflecting and transmitting intelligent temperature-controlling polymer film modified by its doping Mo or W dopant powder. It belongs to the technical field of polymer material modification. Background technique [0002] The wavelength band of sunlight is divided into ultraviolet light (0.2-0.4μm), visible light (0.4-0.8μm) and near-infrared light (0.8-2.6μm), and its energy distribution is about 5% of ultraviolet light, 45% of visible light and near-infrared light 50%. When sunlight shines on the surface of an object, the object mainly absorbs the energy of near-infrared light to increase its surface temperature. In summer, when sunlight shines on the surface of a metal plate or building, the surface temperature can reach 70-80°C. At this time, it is necessary to reflect infra...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L23/02C08L25/06C08L27/04F24J2/40
CPCY02B10/20Y02E10/40
Inventor 郑臣谋雷德铭储向峰
Owner SUN YAT SEN UNIV
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