CN210161719U

CN210161719U - Composite structure of aerogel and PET substrate

Info

Publication number: CN210161719U
Application number: CN201920785361.XU
Authority: CN
Inventors: 周作成; 刘付胜聪
Original assignee: Zhejiang Kang Ting Ting Electronic Technology Co Ltd
Current assignee: Yuqi Material Technology Changzhou Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-03-20
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a composite construction of aerogel and PET substrate, including the substrate membrane, a plurality of undercut's recess has been seted up on substrate membrane surface, the recess intussuseption is filled with the aerogel granule, every the cross-section of recess is down triangle-shaped or trapezoidal or rectangle or semi-circular, a side surface that the recess was seted up to the substrate membrane bonds there is the protective layer. The utility model provides a can prevent effectively that the aerogel from the composite construction of an aerogel and PET substrate that drops.

Description

Composite structure of aerogel and PET substrate

Technical Field

The utility model relates to the technical field of films, in particular to composite construction of aerogel and PET substrate.

Background

The aerogel is a novel light nano porous amorphous solid material, is a solid with the minimum density in the world, has the density as low as 0.002g/cm3, and has extremely high porosity. Meanwhile, the aerogel is a solid material with the minimum thermal conductivity in the world at present, and the room-temperature vacuum thermal conductivity can reach 0.001W/m.K. The aerogel high porosity makes it have unlimited pore wall, and these pore walls can effectual separation radiation heat conduction, and the diameter of hole is minimum, can restrain the convection heat conduction of the inside gaseous that contains of hole to effectively reduce coefficient of heat conductivity, therefore the aerogel is prepared favoured in the thermal insulation material field.

Chinese patent No. CN 103723995a provides a method for mixing glass wool felt and silica aerogel to make felt, which comprises preparing glass wool by centrifugal blowing process, spraying resin binder, and spraying silica aerogel slurry on the surface of the glass wool felt to form a composite material in which the glass wool felt and the aerogel are stacked, thereby preparing the composite material with excellent mechanical properties and good thermal insulation properties.

In the above-mentioned prior art scheme production and use, the aerogel of mixing in the glass cotton felt drops easily, appears falling the whitewashed phenomenon, falls the powder and can pollute production and service environment on the one hand, endangers producer and user's health, and on the other hand falls the thermal-insulated effect that keeps warm of whitewashed meeting greatly reduced material.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a composite construction of aerogel and PET substrate can effectively slow down the aerogel and drop.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a composite construction of aerogel and PET substrate, includes the substrate membrane, a plurality of undercut's recess has been seted up on substrate membrane surface, the recess intussuseption is filled with the aerogel granule.

Through adopting above-mentioned technical scheme, pack the aerogel granule in a plurality of recesses on substrate membrane surface, can play the protection effect to the aerogel granule, play better bearing effect to the aerogel granule, promote the linkage effect between aerogel granule and the substrate membrane, effectively slow down the possibility that the aerogel granule dropped in the use to also can avoid influencing the normal operating of equipment because of the aerogel granule drops when playing good thermal-insulated effect.

The utility model discloses further set up to: the cross section of each groove is in an inverted triangle shape, a trapezoid shape or a rectangular semicircle shape.

Through adopting above-mentioned technical scheme, the recess of different cross-sections plays better bearing effect to the aerogel granule, makes in the recess can be arranged in steadily to the aerogel granule, effectively avoids the aerogel granule to fall out from the recess.

The utility model discloses further set up to: each groove is arranged on the surface of the substrate film in a hexagonal arrangement, a tetragonal arrangement or a random arrangement, and the concave shape of each groove is a pyramid shape, a trapezoid shape, a cuboid shape or a semicircle.

The utility model discloses further set up to: and a protective layer is bonded on the surface of one side of the substrate film, which is provided with the groove.

Through adopting above-mentioned technical scheme, utilize the protective layer can play the protection effect to the aerogel granule in the recess, can further promote the stability of aerogel granule in the recess, avoid causing the aerogel granule to take place to drop because of external force in the use.

The utility model discloses further set up to: and one side of the protective layer facing the base material is provided with a sticky adhesive layer.

Through adopting above-mentioned technical scheme, when compound protective layer and substrate membrane, only need bond the protective layer in substrate membrane surface, then can effectively accomplish the connection between protective layer and the substrate membrane, promote the connection stability between the two, also make compound convenient more high-efficient.

The utility model discloses further set up to: and a space is reserved between every two adjacent grooves and a contact surface parallel to the bottom surface of the base material film is formed.

Through adopting above-mentioned technical scheme, rely on the area of contact that the contact surface can promote between substrate membrane and the protective layer to can make connection fastness between them higher when bonding protective layer and substrate membrane, reach better protecting effect, further slow down dropping of aerogel granule.

The utility model discloses further set up to: and a coating edge extends from the edge of the protective layer, and the coating edge is bonded to the bottom surface of one side, away from the groove, of the base material film.

Through adopting above-mentioned technical scheme, can play the cladding protection effect to the substrate membrane lateral wall to can further slow down dropping of aerogel granule.

The utility model discloses further set up to: the outer coating of aerogel granule has the glue film, and is adjacent the aerogel granule passes through the glue film and bonds each other.

Through adopting above-mentioned technical scheme, utilize the glue film can promote the connection fastness between the adjacent aerogel granule, make the aerogel granule in every recess bond together more stably to can reduce the gap between the adjacent aerogel granule, make the aerogel granule denser, thereby reach better thermal-insulated effect.

The utility model discloses further set up to: the aerogel particles are silica aerogel particles.

By adopting the technical scheme, the thin nano network structure of the silica aerogel effectively limits the propagation of local thermal excitation, and the solid thermal conductivity of the silica aerogel is 2 to 3 orders of magnitude lower than that of a corresponding glass state material, so that a better heat insulation effect can be achieved.

The utility model discloses further set up to: the cross section of the groove is trapezoidal, and the width of the upper edge is smaller than that of the bottom edge.

Through adopting above-mentioned technical scheme, make trapezoidal inclined plane play good shelter and keep out the effect to the inside aerogel granule of recess, further avoid slowing down dropping of aerogel granule.

To sum up, the utility model discloses following beneficial effect has: utilize a plurality of recesses on substrate membrane surface to play the effect of effectively placing to the aerogel granule to rely on the protective layer to play good protection effect to the aerogel granule on substrate membrane surface, thereby avoid leading to the aerogel granule on substrate membrane surface to take place to drop in the use.

Drawings

FIG. 1 is a side view of the first embodiment;

FIG. 2 is a schematic side view of the second embodiment;

FIG. 3 is a schematic side view of the third embodiment;

fig. 4 is a side view schematically illustrating a fourth embodiment of the present invention.

Reference numerals: 1. a substrate film; 2. a groove; 3. aerogel particles; 4. a protective layer; 5. an adhesive layer; 6. a contact surface; 7. and (6) coating the edges.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

the utility model provides a composite construction of aerogel and PET substrate, refers to fig. 1 and shows, includes substrate membrane 1, and it has aerogel layer to fill to inlay at substrate membrane 1 surface, and aerogel layer includes a plurality of aerogel particles 3 of densely arranging, and silica aerogel particle is chooseed for use to aerogel particle 3.

In order to promote aerogel granule 3 and substrate membrane 1's connection fastness, substrate membrane 1 can select for use PET, a plurality of undercut's recess 2 has been seted up on substrate membrane 1's surface, every recess 2 is the strip and is parallel to each other, every recess 2's cross-section is down triangle-shaped or trapezoidal or rectangle or semi-circular, utilize recess 2 can be used for bearing aerogel granule 3, thereby promote the stability of aerogel granule 3 on substrate membrane 1 surface, effectively reduce dropping of aerogel granule 3 in the use.

In order to further promote the stability of being connected between aerogel granule 3 and the substrate membrane 1, it has protective layer 4 to set up one side surface bonding of recess 2 at substrate membrane 1, the PET membrane can be chooseed for use to protective layer 4, also can choose the film that can shield the electromagnetism made by ferromagnetic alloy for use, protective layer 4 has viscidity adhesive linkage 5 towards one side coating of substrate membrane 1, adhesive linkage 5 compounds in substrate membrane 1 surface, and in order to promote the joint strength between protective layer 4 and the substrate membrane 1, leave certain interval between adjacent recess 2, thereby form and be parallel contact surface 6 with substrate membrane 1 bottom surface, and make protective layer 4 can paste smoothly and cover in contact surface 6, and play the guard action to aerogel granule 3 in the recess 2.

Example two:

the utility model provides a composite construction of aerogel and PET substrate, the difference with embodiment one lies in, as shown in figure 2, in order to avoid aerogel granule 3 to drop from the side, outwards extend the edge of protective layer 4 has cladding limit 7, cladding limit 7 surrounds in the lateral wall of substrate membrane 1 and bonds in the bottom surface that substrate membrane 1 deviates from recess 2 one side to can play good cladding protection effect to inside aerogel granule 3, then can effectively reduce dropping of aerogel granule 3.

Example three:

the difference between the composite structure of aerogel and PET substrate and the first embodiment is that, as shown in fig. 3, the cross section of the groove 2 is trapezoidal, and the width of the upper side of the trapezoidal cross section is smaller than the width of the lower side of the trapezoidal cross section, so that the aerogel particles 3 in the groove 2 are more stable.

Example four:

a composite structure of aerogel and a PET substrate is different from the first embodiment in that, referring to fig. 4, a plurality of grooves 2 are arranged on the surface of a substrate film 1 in a hexagonal arrangement, a tetragonal arrangement or a random arrangement, and the cross section of each groove 2 is in an inverted triangle shape, a trapezoid shape, a rectangle shape or a semicircle shape.

Example five:

the utility model provides a composite construction of aerogel and PET substrate, the difference with embodiment one lies in, all coats at the outer wall of aerogel granule 3 and has the glue film (not marked in the figure), utilizes the glue film to make adjacent aerogel granule 3 hug closely mutually to make aerogel granule 3 can stably place in recess 2, and make aerogel granule 3 bond each other.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a composite construction of aerogel and PET substrate, characterized by: the aerogel film comprises a base material film (1), wherein a plurality of grooves (2) which are sunken downwards are formed in the surface of the base material film (1), and aerogel particles (3) are filled in the grooves (2).

2. The aerogel and PET substrate composite structure of claim 1, wherein: each groove (2) is parallel to each other, and the cross section of each groove (2) is in an inverted triangle shape, a trapezoid shape, a rectangle shape or a semicircular shape.

3. The aerogel and PET substrate composite structure of claim 1, wherein: each groove (2) is arranged on the surface of the substrate film (1) in a hexagonal arrangement, a tetragonal arrangement or a random arrangement, and the concave shape of each groove (2) is a pyramid shape, a trapezoid shape, a cuboid shape or a semicircle shape.

4. The aerogel and PET substrate composite structure of claim 1, wherein: and a protective layer (4) is bonded on the surface of one side of the base material film (1) provided with the groove (2).

5. The aerogel and PET substrate composite structure of claim 4, wherein: and one side of the protective layer (4) facing the base material film (1) is provided with a sticky adhesive layer (5).

6. A composite structure of aerogel and PET substrate as claimed in claim 1 or 2, wherein: and a space is reserved between every two adjacent grooves (2) and a contact surface (6) parallel to the bottom surface of the base material film (1) is formed.

7. The aerogel and PET substrate composite structure of claim 5, wherein: the edge of the protective layer (4) extends to form a coating edge (7), and the coating edge (7) is adhered to the bottom surface of the base material film (1) on the side departing from the groove (2).

8. The aerogel and PET substrate composite structure of claim 1, wherein: the outer coating of aerogel granule (3) has the glue film, and is adjacent aerogel granule (3) bond each other through the glue film.

9. A composite structure of aerogel and PET substrate as claimed in claim 1 or 8, wherein: the aerogel particles (3) are silica aerogel particles (3).

10. The aerogel and PET substrate composite structure of claim 2, wherein: the cross section of the groove (2) is trapezoidal, and the width of the upper edge is smaller than that of the bottom edge.