CN216106743U

CN216106743U - High-temperature-resistant low-residue PU adhesive protective film

Info

Publication number: CN216106743U
Application number: CN202122475489.6U
Authority: CN
Inventors: 李仁志; 李仁兴
Original assignee: Shenzhen Xuding Electronics Co ltd
Current assignee: Shenzhen Xuding Electronics Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-03-22
Anticipated expiration: 2031-10-14

Abstract

The utility model provides a high-temperature-resistant low-residue PU (polyurethane) adhesive protective film, which relates to the technical field of PU adhesive protective films and comprises a PU adhesive protective layer, wherein a polylactic acid layer is adhered to the lower surface of the PU adhesive protective layer, a PLA (polylactic acid) fiber layer is laid between the PU adhesive protective layer and the polylactic acid layer, a polyvinyl alcohol layer is adhered to the lower surface of the polylactic acid layer, the thickness of the PU adhesive protective layer is 15 micrometers, the thickness of the polylactic acid layer is 10 micrometers, the thickness of the polyvinyl alcohol layer is 8 micrometers, and the thickness of the PLA fiber is 5 micrometers, and the aluminum silicate fiber layer has light weight, high temperature resistance, good thermal stability and low thermal conductivity.

Description

High-temperature-resistant low-residue PU adhesive protective film

Technical Field

The utility model relates to the technical field of PU adhesive protective films, in particular to a high-temperature-resistant low-residue PU adhesive protective film.

Background

The PU protective film is a functional protective film which is formed by taking a transparent PET film as a base material, coating polyurethane glue on one surface of the transparent PET film and attaching a release film on the back surface of the transparent PET film.

However, the existing PU glue protective film needs to be brushed with glue on one side when in use, then the PU glue protective film is pasted on the liquid crystal panel or the glass panel, and a large amount of glue is adhered on the liquid crystal panel or the glass panel when the PU glue protective film is taken off, so that an operator needs to manually remove the PU glue protective film, and the working strength of the operator is increased.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a high-temperature-resistant low-residue PU adhesive protective film which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

high temperature resistant low residual PU glues protection film, glue the protective layer including PU, PU glues the lower surface of protective layer and glues and glue the one deck polylactic acid layer, PU glues and has laid one deck PLA fibre between protective layer and the polylactic acid layer, the lower surface on polylactic acid layer glues and has one deck polyvinyl alcohol layer, the thickness that PU glued the protective layer is 15 microns, the thickness on polylactic acid layer is 10 microns, the thickness on polyvinyl alcohol layer is 8 microns, the fibrous thickness of PLA is 5 microns.

Preferably, the lower surface of the polyvinyl alcohol layer is adhered with a polyvinyl chloride layer, a layer of PLA particles is arranged between the polylactic acid layer and the polyvinyl alcohol layer, the thickness of the polyvinyl chloride layer is 15 microns, and the diameter of the PLA particles is 2 microns.

Preferably, a layer of aluminum silicate fiber is adhered to the lower surface of the polyvinyl chloride layer, and the thickness of the aluminum silicate fiber layer is 10 microns.

Preferably, a PBS (poly (butylene succinate)) sheet is arranged between the polyvinyl alcohol layer and the polyvinyl chloride layer, and the thickness of the PBS sheet is 3 micrometers.

Preferably, a polypropylene layer is adhered to the lower surface of the aluminum silicate fiber layer, and the thickness of the polypropylene layer is 10 microns.

Preferably, a layer of polybutylene succinate is arranged between the polyvinyl chloride layer and the aluminum silicate fiber layer, and the thickness of the polybutylene succinate is 3 micrometers.

Preferably, the lower surface of the polypropylene layer is adhered with one side ethylene propylene diene monomer rubber layer, and the thickness of the ethylene propylene diene monomer rubber layer is 15 microns. And the lower surface of the ethylene propylene diene monomer rubber layer is provided with an adsorption groove layer.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the adsorption groove layer arranged on the lower surface of the ethylene propylene diene monomer rubber layer can reduce the contact area of the rubber surface when the ethylene propylene diene monomer rubber layer is attached to a liquid crystal panel or a glass panel, can reduce the residue of the rubber surface when the ethylene propylene diene monomer rubber layer is detached, and can increase the suction force to prevent the ethylene propylene diene monomer rubber layer from falling off when in use.

(2) The polylactic acid layer is one of the inherent physiological substances of human body, and has no toxicity, harm and irritation to human body. The polylactic acid has stable performance at normal temperature, but can be automatically and completely decomposed under the action of oxygen enrichment and microorganisms at the temperature of more than 55 ℃, carbon dioxide and water are finally generated, the environment is not polluted, the polyvinyl chloride layer has excellent plasticity and high heat resistance, and the aluminum silicate fiber layer has light weight, high temperature resistance, good thermal stability and low thermal conductivity.

Drawings

FIG. 1 is a schematic view of the whole structure of the front side of the high temperature resistant low residue PU glue protective film of the present invention;

FIG. 2 is a schematic structural diagram of a polylactic acid layer of the high temperature resistant low residue PU glue protective film according to the present invention;

FIG. 3 is a schematic structural diagram of a polyvinyl alcohol layer of the high temperature resistant low residue PU glue protective film according to the present invention;

FIG. 4 is a schematic view of the PVC layer structure of the high temperature resistant low residue PU glue protective film according to the present invention;

FIG. 5 is a schematic structural diagram of an aluminum silicate fiber layer of the high temperature resistant low residue PU glue protective film of the present invention;

FIG. 6 is a schematic structural diagram of an ethylene propylene diene monomer layer of the high temperature resistant low residue PU glue protective film of the present invention.

In the figure: 1. a PU glue protective layer; 2. a polylactic acid layer; 3. a polyvinyl alcohol layer; 4. a polyvinyl chloride layer; 5. a layer of aluminium silicate fibres; 6. a polypropylene layer; 7. an ethylene propylene diene monomer layer; 8. PLA fiber; 9. PLA granules; 10. PBS (phosphate buffer solution) sheets; 11. polybutylene succinate; 12. adsorbing the groove layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1-6, high temperature resistant low residual PU glues protection film, glue protective layer 1 including PU, PU glues the lower surface of protective layer 1 and glues and has a layer polylactic acid layer 2, one deck PLA fibre 8 has been laid between PU glues protective layer 1 and polylactic acid layer 2, the lower surface on polylactic acid layer 2 glues and has a layer polyvinyl alcohol layer 3, PU glues the thickness of protective layer 1 and is 15 microns, polylactic acid layer 2's thickness is 10 microns, polyvinyl alcohol layer 3's thickness is 8 microns, PLA fibre 8's thickness is 5 microns.

Through the technical scheme, the adsorption groove layer 12 formed in the lower surface of the ethylene propylene diene monomer rubber layer 7 can reduce the contact area of the rubber surface when the rubber surface is attached to a liquid crystal panel or a glass panel, can reduce the residue of the rubber surface when the rubber surface is taken off, can increase the suction force, and prevents the rubber surface from falling off when the rubber surface is used, and the polylactic acid layer 2 is one of the inherent physiological substances of a human body, is non-toxic, harmless and non-irritant to the human body. The polylactic acid has stable performance at normal temperature, but can be automatically and completely decomposed under the action of oxygen enrichment and microorganisms at the temperature of more than 55 ℃, carbon dioxide and water are finally generated, the environment is not polluted, the polyvinyl chloride layer 4 has excellent plasticity and high heat resistance, and the aluminum silicate fiber layer 5 has light weight, high temperature resistance, good heat stability and low heat conductivity.

It can be understood that, in this application, the lower surface of polyvinyl alcohol layer 3 glues and glues there is one deck polyvinyl chloride layer 4, be equipped with one deck PLA granule 9 between polylactic acid layer 2 and the polyvinyl alcohol layer 3, the thickness of polyvinyl chloride layer 4 is 15 microns, the diameter of PLA granule 9 is 2 microns, has a fairly extensive water-soluble high molecular polymer of usage through polyvinyl alcohol layer 3 to and polylactic acid layer 2 basic material lactic acid is one of the intrinsic physiological matters of human body, and is nontoxic harmless nonirritant to the human body. The polylactic acid has stable performance at normal temperature, but can be automatically and completely decomposed under the temperature of more than 55 ℃ or the action of oxygen enrichment and microorganisms, and finally generates carbon dioxide and water without polluting the environment.

It can be understood that in the present application, the lower surface of the polyvinyl chloride layer 4 is adhered with a layer of the alumina silicate fiber layer 5, the thickness of the alumina silicate fiber layer 5 is 10 micrometers, and the alumina silicate fiber layer 5 has the advantages of light weight, high temperature resistance, good thermal stability and low thermal conductivity.

It can be understood that, in the present application, a layer of PBS sheet 10 is disposed between the polyvinyl alcohol layer 3 and the polyvinyl chloride layer 4, the thickness of the PBS sheet 10 is 3 micrometers, and the polyvinyl chloride layer 4 has excellent plasticity and high heat resistance.

It can be understood that in the present application, the lower surface of the alumina silicate fiber layer 5 is adhered with a polypropylene layer 6, the thickness of the polypropylene layer 6 is 10 micrometers, the heat resistance can be increased by the polypropylene layer 6, and the melting point is up to 167 ℃.

It can be understood that, in this application, be equipped with one deck polybutylene succinate 11 between polyvinyl chloride layer 4 and the aluminium silicate fiber layer 5, polybutylene succinate 11's thickness is 3 microns, is a macromolecular compound through polybutylene succinate 11, possess the ester group of easy hydrolysis, the effectual polluted environment that has prevented.

It can be understood that in this application, the lower surface on polypropylene layer 6 is glued and is had one side EPDM layer 7, EPDM layer 7's thickness is 15 microns, absorption groove layer 12 has been seted up to EPDM layer 7's lower surface, and absorption groove layer 12 seted up through EPDM layer 7 lower surface can reduce the area of contact of gluey face when pasting on liquid crystal display panel or glass panels, can reduce the residue of gluey face when taking it off, and absorption groove layer 12 can increase suction, prevents to drop when using.

The working principle of the high-temperature-resistant low-residue PU adhesive protective film is as follows:

when the absorption groove layer 12 is used, the absorption groove layer 12 arranged on the lower surface of the ethylene propylene diene monomer rubber layer 7 can reduce the contact area of the rubber surface when the absorption groove layer is attached to a liquid crystal panel or a glass panel, can reduce the residue of the rubber surface when the absorption groove layer 12 is detached, can increase the suction force and prevent the absorption groove layer from falling off when in use, and the polylactic acid layer 2 is one of the inherent physiological substances of a human body, is nontoxic, harmless and nonirritating to the human body. The polylactic acid has stable performance at normal temperature, but can be automatically and completely decomposed under the action of oxygen enrichment and microorganisms at the temperature of more than 55 ℃, carbon dioxide and water are finally generated, the environment is not polluted, the polyvinyl chloride 4 has excellent plasticity and high heat resistance, and the aluminum silicate fiber layer 5 has light weight, high temperature resistance, good heat stability and low heat conductivity.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. High temperature resistant low PU who remains glues protection film glues protective layer (1), its characterized in that including PU: the lower surface that PU glued protective layer (1) glues is glued has one deck polylactic acid layer (2), PU glues and has laid one deck PLA fibre (8) between protective layer (1) and polylactic acid layer (2), the lower surface on polylactic acid layer (2) glues has one deck polyvinyl alcohol layer (3), the thickness that PU glued protective layer (1) is 15 microns, the thickness on polylactic acid layer (2) is 10 microns, the thickness on polyvinyl alcohol layer (3) is 8 microns, the thickness of PLA fibre (8) is 5 microns.

2. The high temperature resistant low residue PU glue protective film according to claim 1, characterized in that: the lower surface of polyvinyl alcohol layer (3) glues and is stained with one deck polyvinyl chloride layer (4), be equipped with one deck PLA granule (9) between polylactic acid layer (2) and polyvinyl alcohol layer (3), the thickness on polyvinyl chloride layer (4) is 15 microns, the diameter of PLA granule (9) is 2 microns.

3. The high temperature resistant low residue PU glue protective film according to claim 2, characterized in that: the lower surface of the polyvinyl chloride layer (4) is adhered with an aluminum silicate fiber layer (5), and the thickness of the aluminum silicate fiber layer (5) is 10 microns.

4. The high temperature resistant low residue PU glue protective film according to claim 1, characterized in that: a PBS (phosphate buffer solution) sheet (10) is arranged between the polyvinyl alcohol layer (3) and the polyvinyl chloride layer (4), and the thickness of the PBS sheet (10) is 3 micrometers.

5. The high temperature resistant low residue PU glue protective film according to claim 3, characterized in that: the lower surface of the aluminum silicate fiber layer (5) is adhered with a polypropylene layer (6), and the thickness of the polypropylene layer (6) is 10 microns.

6. The high temperature resistant low residue PU glue protective film according to claim 4, characterized in that: a layer of polybutylene succinate (11) is arranged between the polyvinyl chloride layer (4) and the aluminum silicate fiber layer (5), and the thickness of the polybutylene succinate (11) is 3 micrometers.

7. The high temperature resistant low residue PU glue protective film according to claim 5, characterized in that: the lower surface of the polypropylene layer (6) is adhered with one side ethylene propylene diene monomer rubber layer (7), the thickness of the ethylene propylene diene monomer rubber layer (7) is 15 micrometers, and the lower surface of the ethylene propylene diene monomer rubber layer (7) is provided with an adsorption groove layer (12).