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Vanadium dioxide series sun heat reflection intelligent temp./control high molecular sheet (plate) material

A polymer material, vanadium dioxide technology, applied in the field of solar heat automatic reflection and transmission intelligent temperature control polymer sheet materials, can solve the problems that have not been seen before, and achieve improved shielding effect, broad application prospects and high reflection efficiency Effect

Inactive Publication Date: 2005-06-08
SUN YAT SEN UNIV
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  • Summary
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Problems solved by technology

Although there are solar heat-reflecting and heat-insulating polymer films, there is no polymer material that can reflect infrared light at high temperatures and transmit infrared light at low temperatures.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0018] The vanadium dioxide solar thermal intelligent temperature control polymer sheet (plate) material is composed of polymer materials and composite pigments, and the weight of each component is shown in Table 1.

[0019] (V 1-x m x )O 2 Synthesis method of powder:

[0020] 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. The Mo / V or W / V ratio in the do...

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Abstract

A high-molecular plate (or sheet) with intelligent temp controlling function by reflecting sun-heat or not is prepared from high-molecular material, composite pigment, organic glass, polycarbonate, modified terylene fibres and terylene fibres. Its 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, car, ship, etc.

Description

technical field [0001] The invention relates to a solar heat automatic reflection and transmission intelligent temperature control polymer sheet (plate) material, in particular to a VO 2 And its modified Mo or W dopant series powder modified solar heat automatic reflection and transmission intelligent temperature control polymer sheet (plate) material. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L33/12C08L69/00F24J2/40
CPCY02E10/40
Inventor 郑臣谋雷德铭储向峰
Owner SUN YAT SEN UNIV
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