Flexible transparent nano heat-insulation film and preparation method thereof

A nano-insulated and transparent technology, applied in film/flake adhesives, coatings, reflective/signal coatings, etc., can solve the problems of difficult peeling, reduced film insulation performance, easy to absorb dust, etc. Antistatic properties, improve thermal insulation efficiency, and the effect of not easily adsorbing dust

Active Publication Date: 2014-12-03
KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Not only that, the currently used PET material building insulation film has adhesive backing, which is difficult to peel off after being pasted, and it is pasted again after peeling off, resulting in great waste; Embedded, so that the surface resistance of the heat insulation layer is large, it is easy to absorb dust and cause the film surface to be dirty, which affects the indoor light transmittance; in addition, if it is wiped and cleaned many times, it will affect the heat insulation layer and base films such as PET. The bonding between them even makes the heat-insulating nano-tin antimony oxide functional particles fall off, which seriously reduces the heat-insulation performance of the film and affects the wide application of flexible diaphragms; Easy to fall off, difficult to peel off, etc.

Method used

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  • Flexible transparent nano heat-insulation film and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: A kind of preparation method of flexible transparent nano heat insulation film

[0048] 1) TiO 2 Preparation of coating slurry

[0049] Take 100mL of TiCl with a concentration of 0.2mol / L 4 Aqueous solution, adjust TiCl with a mass concentration of 5% ammonia water 4 The pH of the aqueous solution is 9, and white ortho-titanic acid precipitates are obtained; wash with deionized water until there is no chloride ion in the system; disperse the ortho-titanic acid precipitates in 100 mL of hydrogen peroxide solution with a mass concentration of 30%, and wait until the precipitation is complete After dissolving, heat and reflux for 6 hours to obtain anatase TiO with a particle size of 20-40nm 2 Sol, add film-forming agent fluorocarbon resin to the sol, and evenly disperse to obtain TiO 2 Coating slurry, the mass fraction of fluorocarbon resin in the sol is 0.5%;

[0050] 2)SiO2 2 Preparation of coating slurry

[0051] SiO with a particle size of 40-80nm ...

Embodiment 2

[0061] Repeat Example 1, the difference is only in step 3) in the preparation of ATO slurry, the solid content of ATO nanoparticles is 2.50%, and the solid content of polyurethane film former is 0.50%.

Embodiment 3

[0063] Repeat Example 1, the difference is only in step 3) in the preparation of ATO slurry, the solid content of ATO nanoparticles is 2.73%, and the solid content of polyurethane film former is 0.27%.

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Abstract

The invention discloses a flexible transparent nano heat-insulation film which comprises an organic flexible substrate, a nano antimony tin oxide layer coated on one side of the organic flexible substrate, a TiO2 layer coated on the other side of the organic flexible substrate, a SiO2 layer coated on the other side of the TiO2 layer, and a pressure-sensitive adhesive coated on the other side of the SiO2 layer. The invention also discloses a preparation method of the flexible transparent nano heat-insulation film, which comprises the following steps: 1) preparing a TiO2 coating slurry; 2) preparing a SiO2 coating slurry; 3) preparing a nano antimony tin oxide slurry; 4) coating a nano antimony tin oxide absorptive heat-insulation layer; 5) coating a SiO2/TiO2 reflective heat-insulation layer; and 6) coating the pressure-sensitive adhesive. The method enhances the heat-insulation efficiency of the heat-insulation film, so that the indoor/outdoor temperature difference can reach 10 DEG C; the visible light transmittance of the heat-insulation film is up to 80%; the adhesive force of the coating on the flexible substrate surface reaches Grade 1; the heat-insulation layer can not easily absorb dust, and thus, can not be easily polluted; and the heat-insulation film can be easily attached to or peeled from the surface of the glass, ceramic or any other substrate.

Description

technical field [0001] A heat insulating film and a preparation method thereof, in particular a flexible transparent nano heat insulating film and a preparation method thereof. Background technique [0002] Solar energy is the basic condition for human survival and life, but the strong solar radiation energy also brings some inconvenience to human life. Under the sunlight, the heat continuously accumulates on the surface of the irradiated object, which will make its surface temperature continue to rise. high. In summer, the increase of building temperature causes the surrounding environment and indoor temperature to be too high, which increases the power consumption of air conditioning and cooling. According to statistics, in many developed countries, the electricity used by spraying, air conditioners, air conditioners and electric fans and other cooling and refrigeration equipment accounts for more than 20% of the total annual energy consumption. The shortage and competit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09D1/00C09D5/32C09D5/33C09D167/00C09D127/12
Inventor 喻四海施法宽李豫珍
Owner KUNSHAN BYE MACROMOLECULE MATERIAL CO LTD
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