Self-adhesive sheet metal protective film and preparation method thereof

A metal plate and protective film technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of protective film curling damage, etc., to reduce white pollution, improve shading rate, and reduce costs.

Active Publication Date: 2021-09-14
新乐华宝防护用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a self-adhesive metal plate protective film and its preparation method, which solves the problem of curling damage to the protective film during the cutting process of the aluminum-plastic plate in the prior art

Method used

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  • Self-adhesive sheet metal protective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] S1, material preparation:

[0042] The release layer includes by weight: 20 parts of high-pressure polyethylene, 80 parts of linear polyethylene, 3 parts of white color masterbatch, 20 parts of filler, and 6 parts of flame retardant;

[0043] The filling layer includes by weight: 20 parts of high-pressure polyethylene, 2 parts of black color masterbatch, 80 parts of calcium carbonate filler masterbatch, and 5 parts of flame retardant;

[0044] The transition layer includes by weight: 20 parts of high-pressure polyethylene, 80 parts of linear polyethylene, 3 parts of white color masterbatch, 20 parts of filler, and 6 parts of flame retardant;

[0045] The adhesive layer is ethylene-vinyl acetate copolymer, and the mass content of vinyl acetate is 18%.

[0046] Add the release layer, filling layer, transition layer, and adhesive layer into different mixers according to the mass ratio, stir and dry for 15 minutes.

[0047] S2. Shearing and heating of screw plasticizing e...

Embodiment 2

[0052] S1, material preparation:

[0053] The release layer includes by weight: 50 parts of high pressure polyethylene, 50 parts of linear polyethylene, 5 parts of white color masterbatch, 25 parts of filler, 5 parts of flame retardant,

[0054] The filling layer includes by weight: 50 parts of high pressure polyethylene, 4 parts of black color masterbatch, 100 parts of calcium carbonate filling masterbatch, 8 parts of flame retardant,

[0055] The transition layer includes by weight: 50 parts of high pressure polyethylene, 50 parts of linear polyethylene, 5 parts of black color masterbatch, 25 parts of filler, 5 parts of flame retardant,

[0056] The adhesive layer is an ethylene-vinyl acetate copolymer, and the mass content of vinyl acetate is 20%.

[0057] Add the release layer, filling layer, transition layer, and adhesive layer into different mixers according to the mass ratio and stir and dry for 15 minutes;

[0058]S2. Shearing and heating of screw plasticizing extrud...

Embodiment 3

[0063] S1, material preparation:

[0064] The release layer includes by weight: 80 parts of high pressure polyethylene, 20 parts of linear polyethylene, 8 parts of white color masterbatch, 30 parts of filler, 6 parts of flame retardant,

[0065] The filling layer includes by weight: 80 parts of high pressure polyethylene, 5 parts of black color masterbatch, 120 parts of calcium carbonate filling masterbatch, 10 parts of flame retardant,

[0066] The transition layer includes by weight: 80 parts of high pressure polyethylene, 20 parts of linear polyethylene, 8 parts of black color masterbatch, 30 parts of filler, 6 parts of flame retardant,

[0067] The adhesive layer is an ethylene-vinyl acetate copolymer, and the mass content of vinyl acetate is 21%.

[0068] Add the release layer, filling layer, transition layer, and adhesive layer into different mixers according to the mass ratio and stir and dry for 30 minutes;

[0069] S2. Shear heating of the screw plasticizing extrude...

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Abstract

The invention relates to the technical field of protective films, and provides a self-adhesive metal sheet protective film which comprises a release layer, a filling layer, a transition layer and an adhesive layer which are arranged in sequence, wherein the adhesive layer is an ethylene-vinyl acetate copolymer, and the mass content of vinyl acetate in the ethylene-vinyl acetate copolymer is 18-25%. By means of the technical scheme, the problem that in the prior art, in the aluminum-plastic panel cutting process, a protective film is curled and damaged is solved.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to a self-adhesive metal sheet protective film and a preparation method thereof. Background technique [0002] When transporting and processing building materials such as aluminum-plastic panels and other metal plates, a protective film will be attached to the surface of the plate, which can prevent scratches and dust. After the processing is completed, the protective film can be torn off. [0003] However, during the processing and use of the aluminum-plastic panel, it is inevitable to cut, and when cutting, the aluminum-plastic panel and the protective film on the surface will be heated. The protective films in the prior art are such as PP (polypropylene) film, PVC film, etc. (polyvinyl chloride) film, when heated, problems such as curling, collapse, and gelatinization occur, which affect the use. On the other hand, the current aluminum-plastic panels also have the probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/30C09J123/08C08J3/22C08L23/06C08K3/26
CPCC09J7/29C09J7/30C09J123/0853C08J3/226C09J2423/04C09J2423/046C08J2323/06C08J2423/06C08K2003/265
Inventor 王飞薛强张少辉
Owner 新乐华宝防护用品有限公司
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