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

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...

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