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Fluorine release paint, and fluorine release film and preparation method thereof

A fluorine release film, fluorine technology, applied in the direction of coating, can solve the problems of high price, high temperature resistance of acrylate release agent, easy silicon transfer, etc., and achieves mild conditions, simple preparation method, The effect of low cost of raw materials

Inactive Publication Date: 2019-10-22
安徽屹珹新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silicone-based release agents are prone to silicon transfer, acrylate-based release agents are not resistant to high temperatures, and fluorine-modified silicone-based release agents are expensive and prone to silicon transfer
At present, there is a lack of a release agent and its release film with high temperature resistance, low cost and no silicon transfer in the market.

Method used

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  • Fluorine release paint, and fluorine release film and preparation method thereof

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preparation example Construction

[0059] The present invention also provides a method for preparing the fluorine release film described in the above technical scheme, which includes the following steps:

[0060] a) Coating the fluorine release coating on the substrate, curing, and cooling and winding to obtain a fluorine release film; the fluorine release coating is the fluorine release coating described in the above technical scheme.

[0061] In the present invention, the fluorine release coating is the fluorine release coating described in the above technical solution; the substrate is the same as that in the above technical solution, and will not be repeated here.

[0062] The present invention has no special restrictions on the coating equipment, and a coating production line well known to those skilled in the art can be used. In the present invention, the coating process is preferably specifically:

[0063] Using a coating production line, the fluorine release coating is coated on the substrate and the coating th...

Embodiment 1

[0070] (1) Add 100 parts by weight of tetrafluoroethylene-vinyl ether copolymer (Hua Lin: HLR-6, ​​solid content 65%) in 400 parts by weight of ethyl acetate solvent, and 13 parts by weight of fluorinated polyacrylic acid Ester (AG: PM4800, 3M) is thoroughly dispersed, mixed and filtered to obtain the main agent of fluorine release coating.

[0071] (2) Select TPA-100 (Asahi Glass, 100% solid content) as the curing agent, add 45 parts by weight to the fluorine release coating main agent obtained in step (1) for compounding, and disperse at 900rpm for 20min to obtain fluorine Plain release coating.

[0072] (3) Using an anilox coating production line, apply the fluorine release coating obtained in step (2) on the PET film (width 1040mm, thickness 50μm), set the coating thickness, the wet film thickness is 10μm, and the coating The line speed of the cloth production line is 10m / min; the oven length of the anilox coating production line is 30m, a total of 10 sections, and the oven te...

Embodiment 2

[0074] (1) Add 250 parts by weight of PTFE to 500 parts by weight of methyl ethyl ketone solvent and immerse for 1h~2h; then add 300 parts by weight of tetrafluoroethylene-vinyl ether copolymer to the above-mentioned fine powder impregnating solution (Hua Lin: HLR-6, ​​solid content 65%), after fully dispersed, mixed and filtered, the main agent of fluorine release coating is obtained.

[0075] (2) Select TPA-100 (Asahi Glass, 100% solid content) as the curing agent, add 130 parts by weight to the fluorine release coating main agent obtained in step (1) for compounding, and disperse at 900rpm for 20min to obtain fluorine Plain release coating.

[0076] (3) Using an anilox coating production line, apply the fluorine release coating obtained in step (2) on the PET film (width 1040mm, thickness 100μm), set the coating thickness, and the wet film thickness is 30μm. The line speed of the cloth production line is 10m / min; the oven length of the anilox coating production line is 30m, a t...

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Abstract

The invention provides a fluorine release paint, and a fluorine release film and a preparation method thereof. The fluorine release paint is prepared from the following raw materials: 8 wt% to 60 wt%of fluorocarbon resin, 0.1 wt% to 30 wt% of a fluorine release agent, 0.2 wt% to 20 wt% of a curing agent and 25 wt% to 90 wt% of an organic solvent. The fluorine release film comprises a substrate and a fluorine release coating arranged on the surface of the substrate, wherein the fluorine release coating is prepared from the fluorine release paint described in a technical scheme in the invention. Compared with the prior art, the fluorine release film provided by the invention adopts the fluorine release coating prepared from the fluorine release paint with specific composition, realizes better interaction under the condition of a specific structure, has excellent high-temperature resistance and release properties, and is free of any silicon transfer.

Description

Technical field [0001] The invention relates to the technical field of release films, and more specifically, to a fluorine release coating, a fluorine release film and a preparation method thereof. Background technique [0002] Release film refers to a special film with a lower surface energy than conventional films. The release film has no stickiness or slight stickiness after contacting with certain materials under limited conditions. Normally, in order to increase the release force of the plastic film, a release agent coating treatment is applied to the surface of the film (PET, PE, OPP, paper, etc.), so that it is suitable for various pressure-sensitive adhesives (such as silicone series). Pressure sensitive adhesives, acrylic pressure sensitive adhesives and rubber pressure sensitive adhesives) exhibit extremely light and stable release force. According to the different viscosity of the isolation pressure-sensitive adhesive, the release force should be adjusted accordingly...

Claims

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Application Information

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IPC IPC(8): C09D127/18C09D5/20C08J7/04C08L67/02
CPCC09D127/18C09D5/20C08J2367/02C08J2427/18C08L2205/03C08L2205/025C08J7/0427C08L27/18C08L33/04
Inventor 滕超李士锋王国伟
Owner 安徽屹珹新材料科技有限公司
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