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Matte release film produced by EB curing

A technology of release film and matte surface, applied in the direction of film/sheet release liner, film/sheet adhesive, coating, etc., can solve the problem of cleanliness, flatness and antistatic, resin Different degrees of cross-linking, organic solvent volatilization and other problems, to achieve the effect of flexibility, stable emulsion performance, and increased cohesion

Inactive Publication Date: 2021-06-11
南京盛凯新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although there are many manufacturers of release films in China, most of them use ordinary coating machines to coat silicone heat-curing components, and most of them are operated in general workshops. Most of the products produced are ordinary low-end products, which cannot meet the requirements of the optical, electrical, electronic and die-cutting industries in terms of cleanliness, flatness and antistatic indicators.

Method used

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  • Matte release film produced by EB curing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The method for preparing fog surface release film, comprises the following steps:

[0024] Weigh 12 parts of acrylate-modified polysiloxane prepolymer, 13 parts of N-butoxyacrylamide, 20 parts of natural latex, 2 parts of emulsified silicone oil emulsion, 3 parts of water-based silicone oil, and water-based zinc stearate according to parts by weight. 1 part, 4 parts of platinum-cyclovinylmethylsiloxane complex, 5 parts of ethoxyquinoline, continuously add water and stir to make the mixture uniform, and mechanically stir for 20 minutes to obtain a mixed solution. It is uniformly coated on the surface of the 125 μm PET substrate by a coater to form a release layer, wherein the blade pressure in the coater is 0.3Mpa, the coating speed is 30m / min, and the thickness of the release layer The coating temperature is 22°C and the relative humidity is 60%. The release agent layer is cured by electron beam radiation. The voltage of the electron beam is 200kv, and the dose of the e...

Embodiment 2

[0026] The method for preparing fog surface release film, comprises the following steps:

[0027] Weigh 13 parts of acrylate-modified polysiloxane prepolymer, 15 parts of N-butoxyacrylamide, 27 parts of natural latex, 2 parts of emulsified silicone oil emulsion, 4 parts of water-based silicone oil, and water-based zinc stearate according to parts by weight. 2 parts, 6 parts of platinum-cyclovinylmethylsiloxane complex, 7 parts of dibutyl hydroxytoluene, continuously add water and stir to make the mixture uniform, and mechanically stir for 20 minutes to obtain a mixed solution. It is evenly coated on the surface of the 188μm PET substrate by a coater to form a release layer, wherein the blade pressure in the coater is 0.5Mpa, the coating speed is 40m / min, and the thickness of the release layer The coating temperature is 24°C and the relative humidity is 66%. The release agent layer is cured and formed by electron beam radiation. The voltage of the electron beam is 250kv, and th...

Embodiment 3

[0029] The method for preparing fog surface release film, comprises the following steps:

[0030]Weigh 15 parts of acrylate-modified polysiloxane prepolymer, 18 parts of N-butoxyacrylamide, 35 parts of natural latex, 3 parts of emulsified silicone oil emulsion, 5 parts of water-based silicone oil, and water-based zinc stearate according to parts by weight. 2 parts, 8 parts of platinum-cyclovinylmethylsiloxane complex, and 10 parts of butylated hydroxyanisole were continuously added with water and stirred to make the mixture uniform, and mechanically stirred for 20 minutes to obtain a mixed solution. It is evenly coated on the surface of the 250μm PET substrate by a coater to form a release layer, wherein the blade pressure in the coater is 0.6Mpa, the coating speed is 50m / min, and the thickness of the release layer The coating temperature is 25°C and the relative humidity is 72%. The release agent layer is cured by electron beam radiation. The voltage of the electron beam is 3...

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Abstract

The invention relates to the technical field of new materials, and concretely relates to a matte release film produced by EB curing. The matte release film produced by EB curing is characterized by comprising a base material and a release layer which coats the base material, and the thickness of the release layer is 35-280 nm; and the functional release agent is prepared from, by weight, 12 to 15 parts of an acrylate modified polysiloxane prepolymer, 13 to 18 parts of a reactive diluent, 20 to 35 parts of natural latex, 6 to 10 parts of an emulsifier, 4 to 8 parts of a stabilizer and 5 to 10 parts of an oxygen trapping agent. A PU fabric produced by using the matte release film disclosed by the invention is good in surface smoothness, good in strength, and free of brittleness and breakage after repeated use; the surface effect of the PU fabric is stable, and the glossiness is not changed after the PU fabric is continuously produced and repeatedly used for more than 200 times; and the temperature resistance is good, the high temperature of about 150 DEG C can be resisted, the durability is good, and the repeated use frequency is 5-10 times that of release paper.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a matte release film produced by EB curing. Background technique [0002] Silicone release agent has been widely used because of its good transparency, good isolation effect, adjustable peeling force in a wide range, high temperature resistance, adjustable layer thickness, good persistence and reusable advantages. The silicone release agent is composed of a polymer main agent and an auxiliary agent. The currently commonly used polymer main agents are generally epoxy-modified silicone resins, acrylate-modified silicone resins, etc. Auxiliaries generally include crosslinking agents, catalysts, solvents and various additives. Among them, polymer silicone resin is the most important formula material, which is the main material that affects the release force, and also affects the stability of the coating; polymer resin and crosslinking agent will also affect the adhesion of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/40C09D4/06C09D4/02C09D7/63C09D7/65
CPCC09J7/401C09D4/06C09D7/63C09D7/65
Inventor 孙蕴宝陈昌盛孙力驹
Owner 南京盛凯新材料有限公司
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