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Ultraviolet-cured aluminum formwork release agent with high number of turnover times and preparation method of ultraviolet-cured aluminum formwork release agent

A technology of ultraviolet light and aluminum template, applied in the direction of coating, epoxy resin coating, etc., can solve the problems of coating pollution, low cycle turnover, high energy consumption of film formation, etc., achieve energy saving, convenient on-site operation, and no three wastes pollution effect

Active Publication Date: 2019-03-01
HUNAN HUITIAN HIGH MOLECULAR TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a high-turnover UV-cured aluminum template release agent and a preparation method thereof, to solve the problems of high film-forming energy consumption, low cycle turnover, and peeled-off coating in the release agent in the prior art. Technical problems such as layer contamination of concrete surfaces

Method used

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  • Ultraviolet-cured aluminum formwork release agent with high number of turnover times and preparation method of ultraviolet-cured aluminum formwork release agent
  • Ultraviolet-cured aluminum formwork release agent with high number of turnover times and preparation method of ultraviolet-cured aluminum formwork release agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 1 part of acrylic acid, 2 parts of hydroxyethyl acrylate, 2 parts of isophthalic acid, 4 parts of phthalic anhydride, 1 part of trimellitic anhydride, 1 part of epichlorohydrin, 2 parts of ethylene glycol diglycidyl ether, epoxy resin Add 3 parts into a three-necked flask equipped with stirring, heating and cooling devices, heat and stir, control the temperature in the reactor to 80-130°C, stop heating when the acid value is less than 1mg KOH / g and cool to room temperature to obtain the modified permanent acrylic epoxy resin.

[0029] Raise the temperature of the stainless steel reaction kettle equipped with a disc dispersion stirring device to 30°C, add 7 parts of modified acrylic epoxy resin, 2 parts of UV monomer diluent pentaerythritol triacrylic acid monomer diluent, adhesion promoter A 0.5 part of hydroxyethyl acrylate phosphate, 0.5 part of leveling agent MONENG-1153, 0.3 part of surface slip agent GWN-N, ultraviolet photoinitiator (2,4,6-trimethylbenzoyl) ...

Embodiment 2

[0031] Weigh 2 parts of acrylic acid, 3 parts of hydroxyethyl acrylate, 1 part of isophthalic acid, 5 parts of phthalic anhydride, 1 part of trimellitic anhydride, 2 parts of epichlorohydrin, 1 part of ethylene glycol diglycidyl ether, epoxy resin Add 3 parts into a three-necked flask equipped with stirring, heating and cooling devices, heat and stir, control the temperature in the reactor to 80-130°C, stop heating when the acid value is less than 1mg KOH / g and cool to room temperature to obtain the modified modified acrylic epoxy resin.

[0032] Heat the stainless steel reaction kettle equipped with a disc dispersion stirring device to 40°C, add 7 parts of modified acrylic epoxy resin, 2 parts of UV monomer diluent trimethylolpropane triacrylate, adhesion promoter 0.5 parts of ethylene glycol diglycidyl ether dimethacrylate phosphate, 0.5 parts of leveling agent XYS-5630A, 0.3 parts of surface slip agent GWC-L, ultraviolet photoinitiator 2-hydroxy-methyl-1- 0.5 parts of phen...

Embodiment 3

[0034] Weigh 2 parts of acrylic acid, 3 parts of hydroxyethyl acrylate, 2 parts of isophthalic acid, 4 parts of phthalic anhydride, 2 parts of trimellitic anhydride, 2 parts of epichlorohydrin, 2 parts of ethylene glycol diglycidyl ether, epoxy resin Add 4 parts into a three-necked flask equipped with stirring, heating and cooling devices, heat and stir, control the temperature in the reactor to 80-130°C, stop heating when the acid value is less than 1mg KOH / g and cool to room temperature to obtain the modified permanent acrylic epoxy resin.

[0035] Raise the temperature of the stainless steel reaction kettle equipped with a disc dispersion stirring device to 50°C, add 8 parts of modified acrylic epoxy resin, 1 part of UV monomer diluent hexanediol diacrylate, (meth)acrylic acid iso 1 part of bornyl ester, 0.5 part of adhesion promoter glyceryl dimethacrylate phosphate, 0.5 part of leveling agent BYK-306, 0.3 part of surface slip agent GWA-L, 0.3 part of ultraviolet photoinit...

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Abstract

The invention provides an ultraviolet-cured aluminum formwork release agent with the high number of turnover times and further provides a preparation method of the release agent. The ultraviolet-curedaluminum formwork release agent is prepared from the following components in parts by weight: 6-10 parts of modified acrylic acid epoxy resin, 1-3 parts of a UV monomer diluent, 0.1-0.6 part of an adhesion promoter, 0.1-0.6 part of a leveling agent, 0.1-0.4 part of a surface slip agent and 0.3-0.9 part of an ultraviolet initiator, wherein the modified acrylic acid epoxy resin is prepared from oneor more of acrylic acid, hydroxyethyl acrylate, isophthalic acid, phthalic anhydride, trimellitic anhydride, glycol diglycidyl ether and epichlorohydrin in a modified mode. An aluminum formwork is coated with the release agent, the release agent is subjected to ultraviolet irradiation at the room temperature and thus cured into a film, the release agent is used for a concrete pouring process, therelease quality of concrete is good, the surface is smooth and free of pollution, the surface of the formwork is free of concrete residue, after being brushed with the release agent once, the formwork can be used in a turnover mode by 100 times, and thus the service life of the formwork is prolonged.

Description

technical field [0001] The invention belongs to the field of auxiliary agents for building materials, and in particular relates to a high-turnover UV-cured aluminum template release agent and a preparation method thereof. Background technique [0002] Concrete molding needs to be fixed with the help of templates, and the templates will be removed after the concrete has formed a certain strength. In concrete pouring, if the product is connected with the formwork, it will not only easily damage the product, but also cause difficulty in removing and cleaning the formwork, high labor intensity and low production efficiency. [0003] Concrete release agent is a preparation that can reduce or prevent the adhesion between concrete and the formwork surface, and there are many types of release agents currently in use. According to the appearance, the release agent can be divided into solid, solution, emulsion and paste; according to the effect, it can be divided into one-time and lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10
CPCC09D163/10
Inventor 凌立志李本祥肖勋陈玉文
Owner HUNAN HUITIAN HIGH MOLECULAR TECH CO LTD
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