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Protective film with bonding layer and preparation method thereof

A technology of protective film and adhesive layer, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems of easy adhesion between the surface layer and the adhesive layer, decreased adhesion of the adhesive layer, affecting the final use, etc. , to achieve the effect of reliable stickiness, convenient pasting, and improved product quality

Inactive Publication Date: 2021-02-12
河源昆腾电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the protective film is a film composed of three layers of surface layer, core layer and adhesive layer, it is usually rolled into a roll shape, especially for high-viscosity protective films. The layers are easy to stick and not easy to peel off. At the same time, the low-molecular substances on the surface will be brought to the adhesive layer, resulting in a significant decrease in the adhesion of the adhesive layer, which will affect the final use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A protective film with an adhesive layer, comprising a surface layer, an intermediate layer and a self-adhesive layer, the self-adhesive layer consists of the following components in parts by weight:

[0020] 10 parts of EVA material, 40 parts of PE material, 5 parts of tackifying resin, 10 parts of SEBS material.

[0021] The surface layer is composed of 70 parts by weight of polypropylene resin composition and 30 parts of polyethylene resin. The polyethylene resin is low-density polyethylene resin, and the polypropylene resin composition is composed of ethylene-propylene block copolymer, fluorine-containing compound and release resin. The middle layer is made of polypropylene resin. By adding SESB, a certain degree of aging resistance is maintained, thereby improving quality.

[0022] The thickness of the surface layer is 5 μm, the thickness of the middle layer is 25 μm, and the thickness of the self-adhesive layer is 5 μm.

[0023] A preparation method of a protec...

Embodiment 2

[0028] A protective film with an adhesive layer, comprising a surface layer, an intermediate layer and a self-adhesive layer, the self-adhesive layer consists of the following components in parts by weight:

[0029] 15 parts of EVA material, 50 parts of PE material, 7 parts of tackifying resin, 15 parts of SEBS material.

[0030] The surface layer is composed of 80 parts by weight of polypropylene resin composition and 20 parts of polyethylene resin. The polyethylene resin is low-density polyethylene resin, and the polypropylene resin composition is composed of ethylene-propylene block copolymer, fluorine-containing compound and release resin. The middle layer is made of polypropylene resin. By adding SESB, a certain degree of aging resistance is maintained, thereby improving quality.

[0031] The thickness of the surface layer is 7 μm, the thickness of the middle layer is 30 μm, and the thickness of the self-adhesive layer is 7 μm.

[0032] A preparation method of a protec...

Embodiment 3

[0037] A protective film with an adhesive layer, comprising a surface layer, an intermediate layer and a self-adhesive layer, the self-adhesive layer consists of the following components in parts by weight:

[0038] 25 parts of EVA material, 60 parts of PE material, 10 parts of tackifying resin, 20 parts of SEBS material.

[0039] The surface layer is composed of 90 parts by weight of polypropylene resin composition and 10 parts of polyethylene resin. The polyethylene resin is low-density polyethylene resin, and the polypropylene resin composition is composed of ethylene-propylene block copolymer, fluorine-containing compound and release resin. The middle layer is made of polypropylene resin. By adding SESB, a certain degree of aging resistance is maintained, thereby improving quality.

[0040] The thickness of the surface layer is 10 μm, the thickness of the middle layer is 40 μm, and the thickness of the self-adhesive layer is 10 μm.

[0041] A preparation method of a pro...

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PUM

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Abstract

The invention discloses a protective film with a bonding layer and a preparation method thereof. The protective film comprises a surface layer, a middle layer and a self-adhesive layer, and the self-adhesive layer is prepared from, by weight, 10-25 parts of EVA materials, 40-60 parts of PE materials, 5-10 parts of tackifying resin and 10-20 parts of SEBS materials. The surface layer is composed of70-90 parts by weight of polypropylene resin composition and 10-30 parts by weight of polyethylene resin, the polyethylene resin is low-density polyethylene resin, and the polypropylene resin composition is composed of an ethylene-propylene block copolymer, a fluorine-containing compound and release resin. The product quality is effectively improved, additional gluing is not needed, the use is convenient, and the viscosity is reliable.

Description

technical field [0001] The invention relates to the field of protective films, in particular to a protective film with an adhesive layer and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the electronics industry. To prevent electronic devices from being stained or scratched during handling and assembly, their surfaces need to be protected. Since the protective film is a film composed of three layers of surface layer, core layer and adhesive layer, it is usually rolled into a roll shape, especially for high-viscosity protective films. The layers are easy to stick and not easy to peel off. At the same time, the low-molecular substances on the surface will be brought to the adhesive layer, resulting in a significant decrease in the adhesion of the adhesive layer, which will affect the final use. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B7/10B32B27/08B32B27/20B32B27/30B32B27/32B32B33/00B29C48/08B29C48/21
CPCB32B27/08B32B27/306B32B27/32B32B27/20B32B33/00B32B7/10B29C48/08B29C48/21B32B2250/24B32B2307/552
Inventor 罗瑞涌黄琼霖陈俊峰胡源田维
Owner 河源昆腾电子科技有限公司