A kind of electrostatic protection film and preparation method thereof

A protective film and electrostatic technology, applied in chemical instruments and methods, electronic equipment, and other household appliances, can solve the problems of residual glue and other problems, and achieve the effects of simple operation, low production cost, and convenient control

Active Publication Date: 2022-04-01
东莞市尼的科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing acrylic protective film, its surface is coated with acrylic glue, so that it has greater adhesion to the surface of the product, but after it has been attached to the screen for a long time, when the protective film is torn off, especially after various After storage and transportation in a high-temperature and high-humidity environment in the region, there will be pollution phenomena such as residual glue, ghost images, air circle marks, and white fog on the laminated surface

Method used

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  • A kind of electrostatic protection film and preparation method thereof
  • A kind of electrostatic protection film and preparation method thereof
  • A kind of electrostatic protection film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] An electrostatic protective film, comprising an electrostatic adsorption layer and a protective layer co-extruded with the electrostatic adsorption layer; the electrostatic adsorption layer includes the following raw materials in parts by weight:

[0041] 60 parts of low-density polyethylene

[0042] Hydroxyl-terminated polydimethylsiloxane 12 parts

[0043] Vinyl silicone oil 3 parts.

[0044] The vinyl silicone oil is vinyl-terminated polydimethylsiloxane, and the vinyl content of the vinyl silicone oil is 0.65 mol%.

[0045] The preparation method of the hydroxyl-terminated polydimethylsiloxane comprises the following steps:

[0046] (R1), get 120 parts of cyclic siloxanes, 0.5 parts of alkaline solution, 12 parts of white carbon black, 0.8 parts of dispersant and 3 parts of water by weight, for subsequent use;

[0047] (R2), adding an alkaline solution to the cyclic siloxane, then stirring under the protection of a nitrogen environment and raising the temperature...

Embodiment 2

[0064] An electrostatic protective film, comprising an electrostatic adsorption layer and a protective layer co-extruded with the electrostatic adsorption layer; the electrostatic adsorption layer includes the following raw materials in parts by weight:

[0065] Low-density polyethylene 50 parts

[0066] Hydroxy-terminated polydimethylsiloxane 8 parts

[0067] Vinyl silicone oil 2 parts.

[0068] The vinyl silicone oil is vinyl-terminated polymethylvinyl siloxane, and the vinyl content of the vinyl silicone oil is 0.45 mol%.

[0069] The preparation method of the hydroxyl-terminated polydimethylsiloxane comprises the following steps:

[0070] (R1), take 100 parts of cyclic siloxane, 0.1 part of alkaline solution, 10 parts of white carbon black, 0.5 part of dispersant and 1 part of water by weight, and set aside;

[0071] (R2), adding an alkaline solution to the cyclic siloxane, then stirring under the protection of a nitrogen environment and raising the temperature to 140°C...

Embodiment 3

[0088] An electrostatic protective film, comprising an electrostatic adsorption layer and a protective layer co-extruded with the electrostatic adsorption layer; the electrostatic adsorption layer includes the following raw materials in parts by weight:

[0089] Low-density polyethylene 70 parts

[0090] Hydroxyl-terminated polydimethylsiloxane 15 parts

[0091] Vinyl silicone oil 4 parts.

[0092] The vinyl silicone oil is a mixture of vinyl-terminated polydimethylsiloxane and vinyl-terminated polymethylvinylsiloxane in a weight ratio of 1:1, and the vinyl content of the vinyl silicone oil is 0.80mol %.

[0093] The preparation method of the hydroxyl-terminated polydimethylsiloxane comprises the following steps:

[0094] (R1), get 150 parts of cyclic siloxanes, 1 part of alkaline solution, 15 parts of white carbon black, 1 part of dispersant and 5 parts of water by weight, for subsequent use;

[0095] (R2), adding an alkaline solution to the cyclic siloxane, then stirring...

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Abstract

The invention relates to the technical field of protective films, in particular to an electrostatic protective film and a preparation method thereof. The electrostatic protective film includes an electrostatic adsorption layer and a protective layer co-extruded with the electrostatic adsorption layer; the electrostatic adsorption layer includes the following raw materials: Low density polyethylene, hydroxyl terminated polydimethylsiloxane and vinyl silicone oil. The electrostatic protective film of the present invention uses the side of the electrostatic adsorption layer away from the protective layer as the adhesive surface, which not only has low self-adhesiveness, but also has electrostatic adsorption capacity. The combination of the two increases the adhesion of the electrostatic protective film on the screen. Adhesion, making its adhesion more tend to the adhesion of the existing acrylic protective film, and the electrostatic adsorption layer does not need to be coated with adhesive, which avoids the phenomenon of residual glue and residual traces when peeling off the electrostatic protective film; protection The co-extrusion and bonding of the electrostatic adsorption layer and the electrostatic adsorption layer avoids the defect of poor mechanical strength of the electrostatic adsorption layer alone, and improves the overall tensile and tear resistance of the electrostatic protective film.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to an electrostatic protective film and a preparation method thereof. Background technique [0002] The existing acrylic protective film, its surface is coated with acrylic glue, so that it has greater adhesion to the surface of the product, but after it has been attached to the screen for a long time, when the protective film is torn off, especially after various After storage and transportation in a high-temperature and high-humidity environment in the region, pollution phenomena such as residual glue, ghost images, balloon marks, and white fog will appear on the laminated surface. Contents of the invention [0003] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide an electrostatic protective film with strong adhesion and no trace left after peeling off. [0004] Another object of the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/20B32B33/00C08L23/06C08L83/04C08L83/07C08L63/00C08L23/08C08G77/16C08G77/06
CPCB32B27/32B32B27/08B32B27/20C08L23/06C08G77/16C08G77/06B32B2307/206B32B2307/5825B32B2307/54B32B2457/00C08L2205/03C08L2205/025C08L2207/066C08L83/04C08L23/0815C08L63/00
Inventor 刘敏
Owner 东莞市尼的科技股份有限公司
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