Microsphere intelligent heat-insulated window membrane and preparation method therefor

An intelligent thermal insulation and microsphere technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of poor use effect, pollution, high product cost, reduce air conditioning energy consumption, avoid pollution and damage, heat The effect of radiation protection

Active Publication Date: 2016-01-06
KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen from the above that there are many reports on intelligent heat-insulating window films in recent years, but the preparation process of the magnetron sputtering method is complicated, and the product cost is high, and the method of blending and doping has the problem of the heat-insulating nanoparticles and the substrate. The problem of poor tolerance, the migration of nanoparticles during use leads to poor use effects, and even contamination or damage to the stickers
At the same time, most of the current reports focus on reducing the indoor temperature by blocking rays, while ignoring the impact of heat conduction and heat transfer.

Method used

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  • Microsphere intelligent heat-insulated window membrane and preparation method therefor
  • Microsphere intelligent heat-insulated window membrane and preparation method therefor

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Preparation of heat-insulating nanospheres:

[0025] Dry tungsten-containing vanadium dioxide particles with a particle size of 50 nm at 105°C for 12 hours, add 10 parts of dried tungsten-containing vanadium dioxide nanoparticles into the reaction kettle, add 100 parts of toluene and 5 parts of vinyl trimethyl Oxysilane. Reflux and stir at 100° C. for 4 hours, cool, filter, and dry to obtain nano vanadium dioxide particles with vinyl groups attached to the surface.

[0026] 1 part of nano vanadium dioxide particles with vinyl groups attached to the surface, 300 parts of deionized water, 5 parts of sodium lauryl sulfate (as emulsifier) ​​and 1 part of n-amyl alcohol (as co-emulsifier) ​​were added while stirring ) was pre-emulsified at 80°C for 0.5h. A 1:1 mixed solution of 30 parts of monomer styrene and trimethylolpropane trimethacrylate (as a crosslinking agent) was added dropwise to the reaction kettle at a constant rate within 2 hours, and 0.2 parts of ammonium pe...

Embodiment 2

[0032] Preparation of heat-insulating nanospheres:

[0033] Dry titanium-containing vanadium dioxide particles with a particle size of 400 nm at 105°C for 12 hours, add 50 parts of dried titanium-containing vanadium dioxide nanoparticles to the reaction kettle, add 1000 parts of ethanol and 50 parts of methacrylic acid Acyloxypropyltrimethoxysilane. Reflux and stir at 70° C. for 4 hours, cool and filter, and then dry to obtain nano vanadium dioxide particles with vinyl groups attached to the surface.

[0034] 5 parts of nano-vanadium dioxide particles with vinyl groups attached to the surface, 300 parts of deionized water, 10 parts of sodium lauryl sulfate and 1 part of n-pentanol were added while stirring, and pre-emulsified at 80 ° C for 0.5 h. Add 100 parts of a 1:1 mixed solution of monomer methyl methacrylate and trimethylolpropane trimethacrylate dropwise into the reactor within 2 hours, and at the same time add 50 parts of ammonium persulfate containing 1 part The aqueo...

Embodiment 3

[0040] Preparation of heat-insulating nanospheres:

[0041] Dry zirconium-containing vanadium dioxide particles with a particle size of 200 nm at 105°C for 12 hours, add 20 parts of dried zirconium-containing vanadium dioxide nanoparticles into the reaction kettle, add 500 parts of ethyl acetate and 10 parts of ethylene Triethoxysilane. Reflux and stir at 70° C. for 4 hours, cool and filter, and then dry to obtain nano vanadium dioxide particles with vinyl groups attached to the surface.

[0042] 10 parts of nano-vanadium dioxide particles with vinyl groups attached to the surface, 1000 parts of deionized water, 30 parts of sodium lauryl sulfate and 10 parts of n-amyl alcohol were added while stirring, and pre-emulsified at 80°C for 0.5h. Add 80 parts of a 1:1 mixed solution of n-butyl acrylate monomer and trimethylolpropane trimethacrylate to the reaction kettle dropwise at a constant rate within 2 hours, and at the same time add 50 parts of an aqueous solution containing 2 ...

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Abstract

The invention discloses a microsphere intelligent heat-insulated window membrane and a preparation method therefor. The method comprises the following steps: (1) adding nano vanadium dioxide particles into a reactor, and adding a solvent and a vinyl silane coupling agent into the reactor, so as to obtain nano vanadium dioxide particles, of which the surfaces are connected with vinyl groups; (2) pre-emulsifying the nano vanadium dioxide particles obtained in the step (1) with water, sodium lauryl sulfate and n-pentanol; then, dropwise adding a mixed solution of a monomer and trimethylolpropane trimethacrylate, which are in the ratio of 1: 1, into a reactor at a constant speed, and dropwise adding an aqueous solution of ammonium persulfate into reactor at a constant speed; and completing the dropwise adding, then, continuing to carry out heat preservation, carrying out cooling, and then, carrying out discharging and drying, thereby obtaining vanadium dioxide nanospheres; and (3) blending the vanadium dioxide nanospheres and a pressure-sensitive adhesive, and then, coating a PET (Polyethyleneglycol Terephthalate) base membrane with the blend. According to the window membrane disclosed by the invention, indoor temperature can be conditioned intelligently, the energy consumption of air conditioners is effectively lowered, and meanwhile, the contamination and damage to the surfaces of stuck objects caused by the migration of vanadium dioxide in the pressure-sensitive adhesive are avoided.

Description

technical field [0001] The invention relates to a microsphere intelligent heat-insulating window film and a preparation method thereof, belonging to the technical field of energy-saving and environment-friendly new materials. Background technique [0002] Nowadays, the situation of transitional carbon emissions is becoming more and more serious, and the resulting problems such as climate warming, environmental degradation, species reduction, infectious disease outbreaks and natural disasters are also becoming more and more serious. Therefore, in recent years, the signing of agreements such as the "Kyoto Protocol" and the "United Nations Framework Convention on Climate Change" shows that energy conservation and emission reduction have been put on the agenda as a very serious issue. [0003] In the field of automobiles and buildings, the energy consumption required for temperature regulation is huge, and 70% of the heat incident on cars and indoors is transmitted through windo...

Claims

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Application Information

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IPC IPC(8): C08J7/04C09D133/04C09D183/04C09D175/04C09D151/10C08F292/00
Inventor 喻四海施法宽杨洋
Owner KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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