Film-forming auxiliary agent prepared by utilizing organosilicon polymer and used for construction metal formwork release agent

Abstract

The invention discloses a film-forming auxiliary agent prepared by utilizing an organosilicon polymer and used for a construction metal formwork release agent, and relates to the technical field of release agents. The film-forming auxiliary agent is prepared from the following raw materials in parts by weight: 15 to 20 parts of the organosilicon polymer, 6 to 11 parts of hydrogenated rosin glycerin ester, 5 to 9 parts of chlorinated polyethylene, 4 to 8 parts of a silicone emulsion, 4 to 8 parts of polyvinyl butyral, 3 to 6 parts of turpentine oil, 3 to 6 parts of sesbania gum, 3 to 6 parts of pregelatinized starch, 2 to 4 parts of rice bran wax, 2 to 4 parts of tea seed powder, 1 to 2 parts of sulfated castor oil, 1 to 2 parts of lanolin, 0.5 to 1 part of disodium hydrogen phosphate and 25 to 35 parts of isopropanol. The film-forming auxiliary agent provided by the invention can significantly improve the film-forming properties of a release agent, can effectively shorten the curing and film-forming time of the release agent, can reinforce the adhesion force of a formed film layer, avoids the occurrence of phenomena of air pores and pulverization of the film layer in the process of use, thereby facilitating to improving release effect.

Description

[0001] Technical field: [0002] The invention relates to the technical field of release agents, in particular to a film-forming auxiliary agent for a release agent for a building metal formwork prepared from an organosilicon polymer. [0003] Background technique: [0004] Concrete molding needs to be fixed by building formwork, and the formwork needs to be removed after the concrete has formed a certain strength. In order to prevent the concrete from adhering to the formwork during the formwork removal process and increase the difficulty of handling the formwork, a release agent is usually sprayed on the inner wall of the formwork. The release agent acts as isolation and lubrication between the formwork and the concrete surface to overcome the bond between the formwork and the concrete surface, so that the formwork can be separated from the concrete when the formwork is removed, which not only keeps the shape of the concrete intact, but also protects the surface of the formwo...

AI Technical Summary

Problems solved by technology

At present, with people's in-depth research on release agents, silicone polymer resin emulsion dispersion system products have emerged as the times require, but their use costs are high, and there are certain environmental protection problems in the waste generated during the synthesis process

In addition, although some mold release agents have good mold release effects, they are prone to produce pores, powder and corrode the template.