CN211688890U

CN211688890U - Anti-drop's membrane

Info

Publication number: CN211688890U
Application number: CN201921635989.8U
Authority: CN
Inventors: 柯小平
Original assignee: Jiujiang Lida Technology Co ltd
Current assignee: Jiujiang Lida Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-10-16
Anticipated expiration: 2029-09-27

Abstract

The utility model provides an anti-drop film, which comprises a first isolation layer, a PVC substrate layer, a second isolation layer and an installation glue layer which are sequentially stacked; wherein, the materials of the first isolation layer and the second isolation layer are independently selected from polyurethane, pressure-sensitive adhesive containing curing agent, acrylic resin, mixture of fluorine modified polyester polyol and isocyanate trimer, fluorine modified aliphatic polyether polyol, or polyether polyol, and mixture of polyester polyol and fluorine modified polyether polyol. An isolation layer is arranged between the PVC substrate and the mounting glue, so that the mutual influence between the PVC substrate and the mounting glue is reduced to the minimum, and the bonding force tends to be stable or not reduced too fast; the service life of the film (PVC substrate) is greatly prolonged, and the fundamental defect of the PVC substrate in the actual use process is overcome.

Description

Anti-drop's membrane

Technical Field

The utility model relates to a stratiform product, concretely relates to anti-drop's membrane

Background

With the progress of science and technology, PVC is widely used in architectural glass films, automobile windows, roof films and the like, realizes the functions of ultraviolet ray isolation, heat insulation quantity conduction and the like, and increasingly shows excellent material performance and wide market prospect for beautifying human life. Typically, the PVC substrate is attached to the building glass, automotive window or body by means of a mounting adhesive, typically a pressure sensitive adhesive.

Disclosure of Invention

The inventors found that, since the PVC base material contains a large amount of plasticizer component, the plasticizer may be precipitated in actual use; the plasticizer reacts with the mounting adhesive, so that the adhesive force of the mounting adhesive is greatly reduced, and the quality of the adhesive film (PVC base material) is reduced or even the adhesive film cannot be used.

In order to stabilize pad pasting (PVC substrate) quality for the life of pad pasting (PVC substrate) prolongs by a wide margin, the utility model provides an anti-drop's membrane.

The utility model provides a pair of anti-drop's membrane, including the following each layer that stacks gradually:

a first isolation layer;

a PVC substrate layer;

a second isolation layer;

installing a glue layer;

wherein, the materials of the first isolation layer and the second isolation layer are independently selected from polyurethane, pressure-sensitive adhesive containing curing agent, acrylic resin, mixture of fluorine modified polyester polyol and isocyanate trimer, fluorine modified aliphatic polyether polyol, or polyether polyol, and mixture of polyester polyol and fluorine modified polyether polyol.

Further, the installation adhesive layer is connected with the release film layer.

Furthermore, the thickness of the first isolation layer is 0.1-50 μm.

Furthermore, the thickness of the PVC substrate layer is 10-300 mu m.

Furthermore, the thickness of the second isolation layer is 0.1-50 μm.

Furthermore, the thickness of the mounting glue layer is 1-50 μm.

Further, the thickness of the release film layer is 5-300 μm.

Further, the PVC base material layer can also be replaced by a TPH base material layer.

The utility model has the advantages that: an isolation layer is arranged between the PVC substrate and the mounting glue, so that the mutual influence between the PVC substrate and the mounting glue is reduced to the minimum, and the bonding force tends to be stable or not reduced too fast; the service life of the film (PVC substrate) is greatly prolonged, and the fundamental defect of the PVC substrate in the actual use process is overcome.

Drawings

Fig. 1 is a schematic structural view of the anti-shedding film in embodiment 1.

Fig. 2 is a schematic structural view of the anti-shedding film in embodiment 2.

The reference signs explain: 1. a first isolation layer; 2, PVC base material layer; 3. a second isolation layer; 4. installing a glue layer; 5. and a release film layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Adopt following process flow preparation the utility model discloses an anti-drop's membrane:

the first step is as follows: coating a 0.1-50 mu m isolating layer on one side of PVC in a coating mode to form a second isolating layer, wherein the material of the second isolating layer can be thermosetting polyurethane, UV-cured polyurethane, pressure-sensitive adhesive with a curing agent, thermosetting acrylic resin, UV-cured acrylic resin, a mixture of thermosetting fluorine modified polyester polyol and isocyanate trimer, or a mixture of UV-cured fluorine modified polyester polyol and isocyanate trimer, or polyether polyol, a mixture of polyester polyol and fluorine modified polyether polyol, or aliphatic substances in polyether polyol;

the second step is that: coating a layer of pressure-sensitive adhesive with the thickness of 1-50 microns on a frosted release film with the thickness of 75 microns in a blade coating mode or a roller coating mode to form an installation adhesive layer, and compounding the installation adhesive layer with a second isolation layer to transfer the pressure-sensitive adhesive to PVC in a transfer mode (after the installation adhesive layer is compounded with the second isolation layer, all plasticizers in the PVC are isolated, so that the viscosity of the installation adhesive is not influenced by the plasticizers);

the third step: and coating an isolation layer (thermal repair or self-repair) of 0.1-50 mu m on the other surface of the PVC in a coating manner to form a first isolation layer, wherein the material of the first isolation layer is the same as that of the second isolation layer.

Wherein, the release film only temporarily protects the mounting adhesive layer; when in use, the release film is peeled off, and then the mounting adhesive layer is compounded with building glass, automobile windows or automobile bodies.

Example 1

As shown in fig. 1, the anti-dropping film comprises a first isolation layer 1, a PVC substrate layer 2, a second isolation layer 3 and a mounting glue layer 4 which are sequentially stacked from top to bottom. Wherein, the material of the first isolation layer 1 is thermosetting polyurethane, and the thickness is 10 μm; the PVC base material layer 2 is made of PVC and has the thickness of 100 mu m; the material of the second isolation layer 3 is thermosetting polyurethane, and the thickness is 10 mu m; the material of the mounting adhesive layer 4 is pressure sensitive adhesive and has a thickness of 10 μm.

Example 2

As shown in fig. 2, the anti-drop film comprises a first isolation layer 1, a PVC substrate layer 2, a second isolation layer 3, an installation glue layer 4 and a release film layer 5 which are sequentially stacked from top to bottom. Wherein, the material of the first isolation layer 1 is UV-cured acrylic resin, and the thickness is 10 μm; the PVC base material layer 2 is made of PVC and has the thickness of 100 mu m; the material of the second isolation layer 3 is UV-cured acrylic resin, and the thickness is 10 mu m; the material of the mounting adhesive layer 4 is pressure-sensitive adhesive, and the thickness is 10 mu m; the release film layer 5 is a frosted release film with the thickness of 75 mu m.

Claims

1. A falling-off preventive film characterized by comprising the following layers laminated in this order:

the first isolation layer is a polyurethane layer or an acrylic resin layer;

a PVC substrate layer;

the second isolation layer is a polyurethane layer or an acrylic resin layer;

and (6) installing a glue layer.

2. The anti-drop film according to claim 1, further comprising a release film layer, the release film layer being connected to the mounting adhesive layer.

3. The anti-falling film according to claim 1, wherein the first separator has a thickness of 0.1 to 50 μm.

4. The anti-falling film according to claim 1, wherein the thickness of the PVC base material layer is 10 to 300 μm.

5. The anti-falling film according to claim 1, wherein the thickness of the second separator is 0.1 to 50 μm.

6. The anti-falling film according to claim 1, wherein the thickness of the mounting adhesive layer is 1 to 50 μm.

7. The anti-falling film according to claim 2, wherein the thickness of the release film layer is 5 to 300 μm.

8. A falling-off preventing film according to any one of claims 1 to 7, wherein the PVC substrate layer is replaced with a TPH substrate layer.