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An antistatic release film for high-viscosity adhesive tape

A high-viscosity, tape technology, used in coatings, epoxy resin coatings, etc., can solve the problems of silicone oil surface easily falling off and remaining on the tape, reducing the surface adhesion of film substrates, and being difficult to separate, etc., and is suitable for promotion and use. , The effect of tight and stable contact and easy separation

Active Publication Date: 2020-04-10
安徽长正升科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The release film refers to a film with a separable surface. The release film is not sticky or slightly sticky after contacting with a specific material under limited conditions. It is coated with a functional film on the film substrate PET, PE, OPP film. Coating, so as to reduce the adhesion on the surface of the film substrate, so as to achieve the effect of release. The release force of the existing light-duty release film is generally 6-8g / in. For high-viscosity tapes, such as 3M467 double-sided without substrate Adhesive tape, the silicone oil surface of the existing light-release release film is relatively rough, and it is not easy to separate after the two are bonded. After the forced separation, the silicone oil surface attached to the film substrate is easy to fall off and remain on the tape. Therefore, it is necessary to solve the above problems. further research and improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An antistatic release film for high-viscosity tapes, comprising a film substrate and a silicone oil release agent attached to the surface of the substrate, the silicone oil release agent is coated with a thickness of 60-80 μm by a rod coating method, and after drying It is obtained by stretching 4 times in the width direction;

[0016] Among them, the silicone oil release agent is made of the following raw materials in parts by weight: 8 parts of vinyl silicone oil with a vinyl content of 0.0667mmol / g, 8 parts of hexamethyldisilazane, 3 parts of epoxy acrylate resin, 2 parts of silica particles 0.3 parts of platinum catalyst, 10 parts of cyanoacrylate resin, 2 parts of 2-hydroxyethyl acrylate, 5 parts of fumed silica, 2 parts of polyethylene glycol, and 15 parts of ethyl acetate.

[0017] Wherein, the roughness of the film substrate is 2.38-2.65 μm; the particle size of the silica particles is 0.2-0.8 μm.

[0018] Wherein, the preparation method of described silicone o...

Embodiment 2

[0024] An antistatic release film for high-viscosity tapes, comprising a film substrate and a silicone oil release agent attached to the surface of the substrate, the silicone oil release agent is coated with a thickness of 60-80 μm by a rod coating method, and after drying It is obtained by stretching 4 times in the width direction;

[0025] Among them, the silicone oil release agent is made of the following raw materials in parts by weight: 12 parts of vinyl silicone oil with a vinyl content of 0.0667 mmol / g, 3 parts of hexamethyldisilazane, 6 parts of epoxy acrylate resin, 1 part of silica particles 0.5 parts of platinum catalyst, 6 parts of cyanoacrylate resin, 2 parts of 2-hydroxyethyl acrylate, 3 parts of fumed silica, 4 parts of polyethylene glycol, and 12 parts of ethyl acetate.

[0026] Other contents are the same as in Example 1.

[0027] After testing, the release force of 98.6% of the products in this embodiment is in the range of 4-5g / in, and the product performa...

Embodiment 3

[0029] An antistatic release film for high-viscosity tapes, comprising a film substrate and a silicone oil release agent attached to the surface of the substrate, the silicone oil release agent is coated with a thickness of 60-80 μm by a rod coating method, and after drying It is obtained by stretching 4 times in the width direction;

[0030] Among them, the silicone oil release agent is made of the following raw materials in parts by weight: 10 parts of vinyl silicone oil with a vinyl content of 0.0667 mmol / g, 5 parts of hexamethyldisilazane, 5 parts of epoxy acrylate resin, 2 parts of silica particles 0.4 parts of platinum catalyst, 8 parts of cyanoacrylate resin, 2 parts of 2-hydroxyethyl acrylate, 4 parts of fumed silica, 3 parts of polyethylene glycol, and 13 parts of ethyl acetate.

[0031] Other contents are the same as in Example 1.

[0032] After testing, the release force of 98.2% of the products in this embodiment is in the range of 4-5g / in, and the product perform...

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Abstract

The invention belongs to the technical field of easily released release film, and in particular, relates to an anti-static release film for a high-stickiness adhesive tape. The anti-static release film includes a thin film base material and a silicone oil release agent attached to the surface of the base material, wherein the silicone oil release agent is prepared from the following raw materials: vinyl silicone oil, hexamethyl-disilazane, epoxy acrylate resin, silica particles, a platinum catalyst, cyanoacrylate resin, 2-hydroxy ethyl acrylate, fumed silica, polyethylene glycol, and ethyl acetate. Compared with the prior art, the anti-static release film has the following advantages that a variety of release agents are mixed and are subjected to reaction to obtain the silicone oil release agent having close molecular structure and stable performance; the silicone oil release agent makes tight and firm contact with the thin film base material, is not easy to fall off and has the release force of 4-5 g / in; the anti-static release film makes contact with the high-stickiness adhesive tape, the contact area is small, separation is easier, the surface of the high-stickiness adhesive tape has no residues after separation, the yield rate of products is improved, and the anti-static release film is suitable for promotion and use.

Description

technical field [0001] The invention belongs to the technical field of light-release release films, and in particular relates to an antistatic release film used for high-viscosity adhesive tapes. Background technique [0002] The release film refers to a film with a separable surface. The release film is not sticky or slightly sticky after contacting with a specific material under limited conditions. It is coated with a functional film on the film substrate PET, PE, OPP film. Coating, so as to reduce the adhesion on the surface of the film substrate, so as to achieve the effect of release. The release force of the existing light-duty release film is generally 6-8g / in. For high-viscosity tapes, such as 3M467 double-sided without substrate Adhesive tape, the silicone oil surface of the existing light-release release film is relatively rough, and it is not easy to separate after the two are bonded. After the forced separation, the silicone oil surface attached to the film subst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D183/07C09D163/10C09D135/04C09D5/20C09D7/61C09D7/63
CPCC08J7/0427C08J2433/04C08J2463/10C08J2483/04C08L2203/16C08L2205/035C09D5/20C09D7/61C09D7/63C09D7/65C09D183/04C08L63/10C08L33/04C08L71/02C08K3/36C08K3/34C08K5/544
Inventor 陈宇
Owner 安徽长正升科技有限公司
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