Modified no-rainbow organic silicon release film taking biaxially oriented poly benzoic acid gylcol ester film and preparation method thereof

A poly terephthalic acid and glycol ester technology, applied in chemical instruments and methods, coatings, layered products, etc., can solve the problems of low surface tension and poor resistance to organic solvents of silicone release films. Easy modification operation, strong organic solvent resistance, and the effect of expanding the scope of application

Inactive Publication Date: 2011-10-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of low surface tension and poor resistance to organic solvents of the existing organic silicon release film, and provides a non-rainbow modified organic silicon release film based on biaxially stretched polyethylene terephthalate film. Silicon release film and preparation method thereof

Method used

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  • Modified no-rainbow organic silicon release film taking biaxially oriented poly benzoic acid gylcol ester film and preparation method thereof
  • Modified no-rainbow organic silicon release film taking biaxially oriented poly benzoic acid gylcol ester film and preparation method thereof
  • Modified no-rainbow organic silicon release film taking biaxially oriented poly benzoic acid gylcol ester film and preparation method thereof

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specific Embodiment approach 1

[0012] Specific embodiment one: The non-iridescent modified silicone release film based on biaxially stretched polyethylene terephthalate film in this embodiment is composed of biaxially stretched polyethylene terephthalate film and coated Cloth liquid, wherein the coating liquid is composed of 20-70 parts by mass of acrylic acid, 7-25 parts of butyl acrylate, 5-25 parts of methyl methacrylate, 5-25 parts Parts of styrene, 10-30 parts of vinyl dimethyl siloxane prepolymer, 2-3 parts of epoxy resin E-44, 2-3 parts of benzoyl peroxide and 170 parts ~600 parts of toluene.

[0013] The non-iridescent modified silicone release film based on the biaxially stretched polyethylene terephthalate film of this embodiment can be cured at a medium temperature under the condition of 140°C to 150°C. In this embodiment, acrylic acid (ester) monomers are used to modify the silicone prepolymer. Since the acrylic resin has polar groups such as carbonyl and carboxyl groups, it has relatively larg...

specific Embodiment approach 2

[0014] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the coating solution consists of 25-65 parts by mass of acrylic acid, 10-20 parts of butyl acrylate, 6-20 parts Methyl methacrylate, 8 to 22 parts of styrene, 12 to 28 parts of vinyl dimethyl siloxane prepolymer, 2.2 to 2.8 parts of epoxy resin E-44, 2.2 parts to 2.8 parts of benzoyl peroxide and 218-535 parts of toluene. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the coating solution is composed of 40 parts by mass of acrylic acid, 15 parts of butyl acrylate, 15 parts of methyl methacrylate, 15 parts of Styrene, 20 parts of vinyl dimethyl siloxane prepolymer, 2.5 parts of epoxy resin E-44, 2.5 parts of benzoyl peroxide and 367 parts of toluene. Others are the same as in the first embodiment.

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Abstract

The invention discloses a modified no-rainbow organic silicon release film taking biaxially oriented poly benzoic acid gylcol ester film and a preparation method thereof, relating to an organic silicon release film and a preparation method thereof. By using modified no-rainbow organic silicon release film, the problems of low organic silicon release film surface tension and poor organic solvent resistant performance can be solved. The release film is prepared from a base material and coating liquid, wherein the coating liquid is prepared from acrylic acid, butyl acrylate, methyl methacrylate, styrene, vinyl dimethyl siloxane prepolymer, epoxy resin E-44, benzoyl peroxide and toluene. The method comprises the following steps: adding parts of acrylic acid, butyl acrylate, methyl methacrylate, styrene and toluene and whole vinyl dimethyl siloxane prepolymer into a reactor; carrying out a reaction in two steps to obtain emulsion; preparing into coating liquid; coating onto the biaxially oriented poly benzoic acid gylcol ester film; and drying to obtain the modified no-rainbow organic silicon release film. The surface tension of the release film is 29-31mN / m, stripping resistance is 19-24g / cm, and the modified no-rainbow organic silicon release film can be used for the field of optical products.

Description

technical field [0001] The invention relates to an organic silicon release film release film and a preparation method thereof. Background technique [0002] With the rapid development of the national economy, the amount of silicone release film used in various industries is rising sharply, especially the high-quality silicone release film used in the production process of optoelectronic products has important economic value. The silicone release film is composed of a base material and a silicone release agent coated on the base. Silicone is a synthetic polymer material composed of silicon atoms and oxygen atoms alternately. It has a special synthesis of organic and inorganic chemical properties, excellent Resistance to high temperatures, UV and IR radiation, resistance to oxidative degradation as well as electrical insulating and elastic properties. The release film with polysiloxane, such as polydimethylsiloxane, as the release agent, because the alkane chain segment in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/36C09D151/08C08F283/10C08F220/06C08F220/18C08F220/14C08F212/08C08F230/08
Inventor 白永平邵路魏赛琦牟辰中
Owner HARBIN INST OF TECH
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