CN210528843U

CN210528843U - Aerogel heat insulation film

Info

Publication number: CN210528843U
Application number: CN201920913523.3U
Authority: CN
Inventors: 郑凯; 张格丰; 时磊
Original assignee: Suzhou Zhuona Nanotechnology Co ltd
Current assignee: Suzhou Zhuona Nanotechnology Co ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-05-15
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a thermal-insulated membrane of aerogel belongs to material technical field. The utility model discloses a thermal-insulated membrane of aerogel includes: the substrate, the phase change layer and the aerogel thermal insulation layer; the phase change layer and the aerogel heat insulation layer are sequentially attached to the substrate, or the aerogel heat insulation layer and the phase change layer are sequentially attached to the substrate. The utility model discloses a thermal-insulated membrane of aerogel passes through composite phase change material, realizes thermal storage, realizes the simulation of constant temperature environment, uses when intelligent electronic product, and the temperature can not appear overheated, keeps at constant temperature basically, can reach comparatively comfortable experience impression.

Description

Aerogel heat insulation film

Technical Field

The utility model relates to a thermal-insulated membrane of aerogel belongs to thermal-insulated membrane technical field.

Background

With the continuous development of intelligent electronic technology, intelligent electronic products gradually become an essential part of people's daily life. The intelligent electronic product is increasingly prepared, a CPU develops to four cores from a single core, functions are more and more, for example, a high-pixel camera, a GPS, gravity sensing, distance sensing, light sensing and the like, intellectualization and lightness and thinness are always targets pursued by the intelligent electronic product continuously, but along with the fact that the intelligent electronic product is thinner and thinner, the functions are more and more, a heat dissipation space is smaller and smaller, and the heat management requirement on the product is higher and more. The aerogel heat insulation film belongs to an ultrathin heat insulation material, and can be combined with a heat dissipation material to realize directional heat dispersion. But current aerogel thermal-insulated membrane can realize dredging the heat dissipation to the heat, but uses a certain function for a long time, when causing local overheat, comes too late to disperse the heat, can cause the local overheated condition, perhaps dispels the heat very fast, causes the condition that whole intelligent electronic product surface temperature is on the high side, brings uncomfortable experience for the user.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a thermal-insulated membrane of aerogel through compound phase change material, realizes thermal storage, realizes the simulation of constant temperature environment.

A first object of the present invention is to provide an aerogel thermal insulation film, including: the substrate, the phase change layer and the aerogel thermal insulation layer; the phase change layer and the aerogel heat insulation layer are sequentially attached to the substrate, or the aerogel heat insulation layer and the phase change layer are sequentially attached to the substrate.

Further, the aerogel heat insulating film still include from type rete and coating at the tie coat from type rete, tie coat and phase change layer be located respectively the both sides of basement.

Further, the phase change layer is prepared from a hydrated phase change material or a waxy phase change material.

Further, the substrate is PET, a synthetic plastic film, a graphite sheet or a metal foil.

Further, the release film layer is a PET release film, a BOPP release film, a PTFE release film, an ETFE release film, an FEP release film, a PMP release film, a PE glue-resistant film, a PVC glue-resistant film, an EVA glue-resistant film, a PC release film, an ABS release film, a PS release film or a PMMA release film.

Furthermore, the bonding layer material is solvent adhesive, emulsion adhesive, hot melt adhesive, calendering adhesive or reactive adhesive.

Further, the aerogel thermal insulation layer is composed of aerogel and water-based resin.

Further, the aerogel is one or more of silica aerogel, titanium dioxide aerogel or alumina aerogel, and the water-based resin is cellulose derivative, modified polybutadiene resin, epoxy resin, alkyd resin, acrylic resin, silicone resin or polyester resin.

Further, the thickness of the aerogel heat insulation layer is 10-1000 μm.

Further, the thickness of the phase change layer is 10-1000 μm.

The utility model discloses a phase transition layer draws close to the heat source when using, if the thermal-insulated membrane of aerogel pastes on the heat source, then adopts basement, phase transition layer, aerogel insulating layer coated structure in proper order, if the thermal-insulated membrane of aerogel pastes on the equipment that deviates from the heat source, then adopts basement, aerogel insulating layer, phase transition layer coated structure in proper order.

The utility model has the advantages that:

the utility model discloses a thermal-insulated membrane of aerogel passes through composite phase change material, realizes thermal storage, realizes the simulation of constant temperature environment, uses when intelligent electronic product, and the temperature can not appear overheated, keeps at constant temperature basically, can reach comparatively comfortable experience impression.

Drawings

Fig. 1 is a schematic structural view of an aerogel heat insulation film of the present invention;

wherein, 1, basement, 2, phase transition layer, 3, aerogel insulating layer, 4, tie coat, 5, release film layer.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Example 1:

selecting 100-micron PET as a substrate, coating a waxy phase change material on the substrate, drying and curing to obtain a 250-micron phase change layer, then continuously coating aerogel slurry on the phase change layer, drying and curing to obtain a 250-micron aerogel thermal insulation layer, and thus obtaining the aerogel thermal insulation film. For convenient use, can be at the another side coating tie coat of basement and leave type rete, when using, directly tear off type rete, with aerogel heat-insulating film paste corresponding the position can.

Example 2:

selecting 100-micron PET as a substrate, coating a waxy phase change material on the substrate, drying and curing to obtain a 500-micron phase change layer, then continuously coating aerogel slurry on the phase change layer, drying and curing to obtain a 500-micron aerogel thermal insulation layer, and thus obtaining the aerogel thermal insulation film.

Comparative example 1:

selecting PET with the thickness of 100 mu m as a substrate, coating aerogel slurry on the substrate, drying and curing to obtain an aerogel heat insulation layer with the thickness of 500 mu m, and obtaining the aerogel heat insulation film.

Comparative example 2:

selecting PET with the thickness of 100 mu m as a substrate, coating aerogel slurry on the PET as the substrate, drying and curing the substrate to obtain an aerogel thermal insulation layer with the thickness of 500 mu m, then continuously coating a waxy phase change material on the phase change layer, drying and curing the phase change layer to obtain a phase change layer with the thickness of 500 mu m, and obtaining the aerogel thermal insulation film.

The aerogel thermal insulation films of examples 1 and 2 and comparative examples 1 and 2 were placed on a hot stage at a temperature of 80 c, and a substrate on which the phase change layer and the aerogel thermal insulation layer were not coated was placed on the hot stage as a control. After being placed for 1min, the surface temperature of the heat insulation film is respectively detected by an infrared imaging thermometer, and the result is shown in table 1:

TABLE 1

	Blank control	Example 1	Example 2	Comparative example 1	Comparative example 2
						Surface temperature	80	40.3	38.3	56.5	48.2
△T	-	39.7	41.7	23.5	31.8

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. An aerogel thermal insulation film, comprising: the substrate, the phase change layer and the aerogel thermal insulation layer; the phase change layer and the aerogel heat insulation layer are sequentially attached to the substrate, or the aerogel heat insulation layer and the phase change layer are sequentially attached to the substrate.

2. The aerogel thermal insulation film according to claim 1, further comprising a release film layer and an adhesive layer coated on the release film layer, wherein the adhesive layer and the phase change layer are respectively located on two sides of the substrate.

3. The aerogel thermal insulation film according to claim 1, wherein the phase change layer is made of a hydrated phase change material or a waxy phase change material.

4. The aerogel thermal insulation film according to claim 1, wherein the substrate is PET, synthetic plastic film, graphite sheet or metal foil.

5. The aerogel heat insulation film according to claim 2, wherein the release film layer is a PET release film, a BOPP release film, a PTFE release film, an ETFE release film, an FEP release film, a PMP release film, a PE film, a PVC film, an EVA film, a PC release film, an ABS release film, a PS release film or a PMMA release film.

6. The aerogel thermal insulation film according to claim 2, wherein the bonding layer is a solvent adhesive, an emulsion adhesive, a hot melt adhesive, a calendaring adhesive, or a reactive adhesive.

7. The aerogel thermal insulation film according to claim 1, wherein the thickness of the aerogel thermal insulation layer is 10-1000 μm.

8. An aerogel thermal barrier film as claimed in claim 1, wherein the phase change layer has a thickness of 10-1000 μm.