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PE protective film

A technology of protective film and protective layer, applied in the direction of pressure-sensitive film/sheet, film/sheet-like adhesive, adhesive additive, etc. To achieve the effect of suppressing the retraction problem, increasing the connection strength, and balancing the properties

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, after the protective film has been used for a period of time, the middle performance is good, but the two ends are raised. The main reason for this phenomenon is that the protective film is stretched to a large extent during the pasting process with the profile to be protected. Later, when encountering a high temperature environment, unnecessary shrinkage occurs

Method used

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  • PE protective film

Examples

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Effect test

Embodiment 1

[0037] A PE protective film, the thickness ratio of the adhesive layer, the connection layer, the PE base layer, the anti-retraction layer and the protective layer is: 1:1:3:1:1.

[0038] in:

[0039] The raw materials of the PE base layer include the following parts by weight: 35 parts of low-density polyethylene with a density of 0.92 g / cubic centimeter, and 12 parts of high-density polyethylene with a density of 0.94 g / cubic centimeter;

[0040] The raw materials of the anti-retraction layer include the following parts by weight: 30 parts of thermosetting phenolic resin, 12 parts of penetrating agent;

[0041] The raw materials of the linking layer include the following parts by weight: 12 parts of low-density polyethylene with a density of 0.91 g / cubic centimeter, and 5-2 parts of crosslinking agent;

[0042] The raw materials of the adhesive layer include the following parts by weight: 23 parts of silicone pressure-sensitive adhesive (SH-916A), 12 parts of anti-aging age...

Embodiment 2

[0055] A PE protective film, the thickness ratio of the adhesive layer, the connection layer, the PE base layer, the anti-retraction layer and the protective layer is: 1:1:4:2:1.

[0056] in:

[0057] The raw materials of the PE base layer include the following parts by weight: 40 parts of low-density polyethylene with a density of 0.922 g / cubic centimeter, and 15 parts of high-density polyethylene with a density of 0.942 g / cubic centimeter;

[0058] The raw materials of the anti-retraction layer include the following parts by weight: 32 parts of thermosetting phenolic resin, 15 parts of penetrating agent;

[0059] The raw materials of the linking layer include the following parts by weight: 15 parts of low-density polyethylene with a density of 0.913 g / cubic centimeter, and 8 parts of crosslinking agent;

[0060] The raw materials of the adhesive layer include the following parts by weight: 30 parts of silicone pressure-sensitive adhesive (SH-916A), 15 parts of anti-aging ag...

Embodiment 3

[0073] A PE protective film, the thickness ratio of the adhesive layer, the connection layer, the PE base layer, the anti-retraction layer and the protective layer is: 2:1:4:2:1.

[0074] in:

[0075] The raw materials of the PE base layer include the following parts by weight: 40 parts of low-density polyethylene with a density of 0.925 g / cubic centimeter, and 25 parts of high-density polyethylene with a density of 0.945 g / cubic centimeter;

[0076] The raw materials of the anti-retraction layer include the following parts by weight: 36 parts of thermosetting phenolic resin, 20 parts of penetrating agent;

[0077] The raw materials of the linking layer include the following parts by weight: 20 parts of low-density polyethylene with a density of 0.915 g / cubic centimeter, and 10 parts of crosslinking agent;

[0078] The raw materials of the adhesive layer include the following parts by weight: 30 parts of silicone pressure-sensitive adhesive (SH-916A), 20 parts of anti-aging a...

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Abstract

The invention discloses a PE protective film and relates to the field of protective films, aiming to solve the problem that the end edge of the existing PE protective film is easy to tilt during use.The technical scheme includes that the PE protective film comprises a PE base layer, a jointing layer, an adhesive layer, an retraction-resistant layer and a protective layer, wherein the jointing layer and the adhesive layer arranged on the inner side of the PE base layer, the retraction-resistant layer and the protective layer are arranged on the outer side of the PE base layer; the PE base layer is prepared from, by weight, 35-65 parts of low-density polyethylene and 12-35 parts of high-density polyethylene; the retraction-resistant layer comprises, by weight, 30-45 parts of thermosetting phenolic resin and 12-45 parts of penetrating agents; the jointing layer comprises, by weight, 12-35 parts of low-density polyethylene and 5-25 parts of cross-linking agents; the adhesive layer is prepared from, by weight, 23-45 parts of silicone pressure sensitive adhesive and 12-35 parts of antiagers; the protective layer comprises, by weight, 20-57 parts of polycarbonate and 7-22 parts of dimethyl siloxane. Retraction in use of the PE protective film can be effectively suppressed, and the adhesive layer of the PE protective film is not easy to fall off, which facilitates application of the PE protective film.

Description

technical field [0001] The invention relates to the field of protective films, more specifically, it relates to a PE 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, after the protective film has been used for a period of time, the middle performance is good, but the two ends are raised. The main reason for this phenomenon is that the protective film is stretched to a large extent during the pasting process with the profile to be protected. Later, in case of high temperature environment, unnecessary retraction phenomenon appeared. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a PE prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/38C09J183/04C09J11/04C09J11/06C08L23/06C08K5/14C08K3/22C08L61/06C08L71/02C08L69/00
Inventor 顾建龙
Owner 常州市顺龙弘源科技股份有限公司
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