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High temperature-resistant and UV (Ultraviolet)-resistant protective film and preparation method thereof

A UV-resistant and protective film technology, applied in the direction of pressure-sensitive film/sheet, film/sheet adhesive, non-polymer adhesive additives, etc., can solve the problem of peeling force drop, glue loss of function, appearance color change and other problems, to achieve the effect of preventing high temperature deformation, increasing elastic modulus, and high temperature resistance

Inactive Publication Date: 2018-10-26
芜湖夏鑫新型材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the ordinary protective film is irradiated by UV, the free radicals formed will reduce the cohesion of the PE film, break the long carbon chain of the polyethylene and acrylic glue, and cause the glue to lose its function, the peeling force will decrease, and the appearance color will change. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A high-temperature-resistant and ultraviolet-resistant protective film, comprising a PE base film layer and an adhesive layer, the adhesive layer is formed by coating the surface of the PE base film layer with heat-resistant and ultraviolet-resistant pressure-sensitive adhesive glue, and drying. Sensitive glue includes the following raw materials in parts by weight: 30 parts of poly-2-methyl methacrylate; 60 parts of ethyl acetate; 1.5 parts of toluene diisocyanate; 0.3 part of o-hydroxybenzophenone; hindered amine light stabilizer (HALS) 0.5 servings.

[0021] The preparation method of the high-temperature-resistant and ultraviolet-resistant protective film is as follows: according to the formula quantity, the raw materials are mixed uniformly to prepare pressure-sensitive adhesive glue, and the pressure-sensitive adhesive glue is coated on the surface of the PE base film layer, followed by 60°C and 15Hz air volume; ℃, 20Hz air volume; 75°C, 24Hz air volume, 75°C, 28Hz...

Embodiment 2

[0024] A high-temperature-resistant and ultraviolet-resistant protective film, comprising a PE base film layer and an adhesive layer, the adhesive layer is formed by coating the surface of the PE base film layer with heat-resistant and ultraviolet-resistant pressure-sensitive adhesive glue, and drying. Sensitive glue includes the following raw materials in parts by weight: 26 parts of polymethyl methacrylate; 58 parts of ethyl acetate; 1.2 parts of isophorone diisocyanate; 0.3 part of triazine ultraviolet absorber; hindered amine light stabilizer (HALS ) 0.5 parts.

[0025] The preparation method of the high-temperature-resistant and ultraviolet-resistant protective film is as follows: according to the formula quantity, mix each raw material evenly to prepare pressure-sensitive adhesive glue, apply pressure-sensitive adhesive glue on the surface of the PE base film layer, and pass through 55°C and 17Hz air volume in sequence; 65 ℃, 22Hz air volume; 70°C, 26Hz air volume, 70°C,...

Embodiment 3

[0028] A high-temperature-resistant and ultraviolet-resistant protective film, comprising a PE base film layer and an adhesive layer, the adhesive layer is formed by coating the surface of the PE base film layer with heat-resistant and ultraviolet-resistant pressure-sensitive adhesive glue, and drying. Sensitive glue includes the following raw materials in parts by weight: 34 parts of methyl epoxy acrylate; 68 parts of ethyl acetate; 1.9 parts of dicyclohexylmethane diisocyanate; 0.1 part of o-hydroxybenzotriazole ultraviolet absorber; hindered amine light stabilizer agent (HALS) 0.4 parts.

[0029] The preparation method of the high-temperature-resistant and ultraviolet-resistant protective film is as follows: according to the formula quantity, the raw materials are mixed evenly to prepare pressure-sensitive adhesive glue, and the pressure-sensitive adhesive glue is coated on the surface of the PE base film layer, followed by 65°C and 13Hz air volume; 75 ℃, 18Hz air volume; 8...

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Abstract

The invention discloses a high temperature-resistant and UV (Ultraviolet)-resistant protective film and a preparation method thereof. The high temperature-resistant and UV-resistant protective film comprises a PE (Polyethylene)-based film layer and an adhesive layer, wherein the adhesive layer is formed by coating the surface of the PE-based film layer with a heat-resistant and UV-resistant pressure-sensitive adhesive and drying; the pressure-sensitive adhesive is prepared from the following raw materials in parts by weight: 25 to 35 parts of acrylate resin, 55 to 70 parts of ethyl acetate, 1to 2 parts of isocyanate curing agent, 0.1 to 0.5 part of UV absorbent and 0.4 to 0.7 part of free radial collecting agent. Compared with the prior art, the preparation method disclosed by the invention is reasonable in raw material proportioning and simple in preparation technology, and a release force of the high temperature-resistant and UV-resistant protective film provided by the invention ranges from 7N / m to 9N / m; after long-time irradiation under high temperature and UV, the release force of the high temperature-resistant and UV-resistant protective film changes within + / -35 percent, and the high temperature-resistant and UV-resistant protective film has no wrinkling, no degumming, no adhesive residue and no chromatic aberration after long-time irradiation under the UV; the high temperature-resistant and UV-resistant protective film can be used for protecting the surfaces of backlight displays in electronic products such as a computer, a television and a mobile phone and can beused for protecting an overlaid shipment transportation process of the backlight displays.

Description

technical field [0001] The invention relates to a high-temperature-resistant and ultraviolet-resistant protective film and a preparation method thereof. Background technique [0002] For some products, such as: ordinary glass, tempered glass, LCD, LED, light guide plate production, diffusion film, PC, PMMA, PET smooth sheet, high-gloss injection molded parts, etc., they will be put into containers or placed in the open air during transportation. During this process, a high temperature may be generated in the container, and the temperature may even reach 60°C. While placed in the open air, it will directly receive ultraviolet radiation. [0003] When the ordinary protective film is irradiated by UV, the free radicals formed will reduce the cohesion of the PE film, break the long carbon chain of the polyethylene and acrylic glue, and cause the glue to lose its function, the peeling force will decrease, and the appearance color will change. question. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/24C09J7/38C09J133/12C09J133/14C09J11/06
CPCC09J11/06C09J133/12C09J133/14C09J2423/046C09J2433/00C09J7/243C09J7/385C09J2301/302C08K5/29C08K5/132C08K5/3492C08K5/3475
Inventor 费志豪王陈
Owner 芜湖夏鑫新型材料科技有限公司
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