Anti-leakage protective film

A protective film, leak-proof technology, applied in the direction of film/sheet adhesives, adhesives, etc., can solve problems such as affecting the quality of the protected product, poor toughness or ductility, rupture of PE protective film, etc., to avoid ductility Excessive size, high ductility and toughness, avoid aging effect

Inactive Publication Date: 2019-05-24
常州市顺龙弘源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the use of PE protective film, problems such as cracks and holes in the PE protective film often occur due to its own toughness or poor ductility, which will affect the quality of the protected product.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0035] A leak-proof protective film, comprising a PE base layer with the same thickness, an adhesive layer, an extension layer and a barrier layer;

[0036] The raw materials of the PE base layer include the following parts by weight: the density is 0.91g / cm 3 45 parts of low-density polyethylene, 25 parts of toughening agent, 12 parts of stabilizer;

[0037] The raw materials of the extension layer include the following parts by weight: 35 parts of polylactic acid, 14 parts of compatibilizer ethylene ethyl acrylate;

[0038] The raw materials of the barrier layer include the following parts by weight: 26 parts of polyethylene terephthalate and 12 parts of polycarbonate.

[0039] in:

[0040] The toughening agent is chlorinated polyethylene with a chlorine content of 26% by mass ratio or an ethylene-vinyl acetate copolymer whose ratio of x and y in (C2H4)x(C4H6O2)y is 5:3;

[0041] The stabilizer is a mixture of 5 parts of benzotriazole and 7 parts of carbon black.

[0042] ...

Embodiment 2

[0048] A leak-proof protective film, comprising a PE base layer with the same thickness, an adhesive layer, an extension layer and a barrier layer;

[0049] The raw materials of the PE base layer include the following parts by weight: the density is 0.912g / cm 3 50 parts of low-density polyethylene, 27 parts of toughening agent, 15 parts of stabilizer;

[0050] The raw materials of the extension layer include the following parts by weight: 40 parts of polylactic acid, 16 parts of compatibilizer ethylene ethyl acrylate;

[0051] The raw materials of the barrier layer include the following parts by weight: 28 parts of polyethylene terephthalate, and 15 parts of polycarbonate.

[0052] in:

[0053] The toughening agent is chlorinated polyethylene with a chlorine content of 30% by mass ratio or an ethylene-vinyl acetate copolymer whose ratio of x and y in (C2H4)x(C4H6O2)y is 6:4;

[0054] The stabilizer is a mixture of 6 parts of benzotriazole and 8 parts of carbon black.

[00...

Embodiment 3

[0061] A leak-proof protective film, comprising a PE base layer with the same thickness, an adhesive layer, an extension layer and a barrier layer;

[0062] The raw materials of the PE base layer include the following parts by weight: 55 parts of low-density polyethylene with a density of 0.914g / cm3, 30 parts of toughening agent, and 20 parts of stabilizer;

[0063] The raw materials of the extension layer include the following parts by weight: 45 parts of polylactic acid, 20 parts of compatibilizer ethylene ethyl acrylate;

[0064] The raw materials of the barrier layer include the following parts by weight: 30 parts of polyethylene terephthalate, and 20 parts of polycarbonate.

[0065] in:

[0066] The toughening agent is chlorinated polyethylene with a chlorine content of 32% by mass ratio or an ethylene-vinyl acetate copolymer whose ratio of x and y in (C2H4)x(C4H6O2)y is 7:4;

[0067] The stabilizer is a mixture of 8 parts of benzotriazole and 10 parts of carbon black. ...

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Abstract

The invention relates to the field of PE protective films, discloses an anti-leakage protective film and aims to solve the problem of proneness to leakage of an existing protective film in a utilization process. The technical scheme includes that the anti-leakage protective film comprises a PE base layer, an adhesive layer, an extension layer and a barrier layer, wherein the inner side of the PE base layer is provided with the adhesive layer, and the extension layer and the barrier layer are sequentially arranged on the outer side of the PE base layer. The PE base layer is prepared from, by weight, 45-68 parts of low-density polyethylene, 25-36 parts of a toughening agent and 12-26 parts of a stabilizing agent. The extension layer is prepared from, by weight, 35-56 parts of polylactic acidand 14-25 parts of a compatilizer. The barrier is prepared from, by weight, 26-39 parts of polyethylene terephthalate and 12-26 parts of polycarbonate. Therefore, toughness and ductility of the PE protective film can be improved, and problems of breakage and holes of the protective film in a utilization process can be avoided.

Description

technical field [0001] The invention relates to the field of protective films, more specifically, it relates to a leak-proof protective film. Background technique [0002] The biggest advantage of PE protective film is that the protected product is not polluted, corroded, scratched during production, processing, transportation, storage and use, and protects the original smooth and shiny surface, thereby improving product quality and market competitiveness . [0003] However, during the use of PE protective film, problems such as cracks and holes in the PE protective film often occur due to its own poor toughness or ductility, which will affect the quality of the protected product. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a leak-proof protective film, which can improve the toughness and ductility of the PE protective film, thereby avoiding the problems of cracks and holes in the prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C08L67/02C08L69/00C08L67/04C08L23/08C08L23/06C08L23/28C08K5/3475C08K3/04
Inventor 顾建龙
Owner 常州市顺龙弘源科技股份有限公司
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