Aqueous demolding agent and production method thereof

Abstract

The invention discloses an aqueous demolding agent which is low in cost and does not pollute the environment and a production method thereof. The aqueous demolding agent is characterized by being prepared by burdening and mixing the following materials in percentage by weight: 1 to 5 percent of polyvinyl alcohol, 0.02 to 0.06 percent of formaldehyde, 0.02 to 0.07 percent of borax, 0.25 to 0.4 percent of sodium ethoxylated alkyl sulfate, 0 to 0.5 percent of octadeca-natural fatty alcohol, 0 to 0.45 percent of hexadecyl trimethyl ammonium chloride and the balance of water, and is a milky pasty liquid, non-toxic and tasteless and difficult to combust. The preparation process is simple, the demolding effect is good, the surface of concrete is clean, and the production cost is low; the production method is easy to operate; the aqueous demolding agent is difficult to combust, does not pollute the environment and can prevent an aluminum alloy template and a steel template from being rusted; and therefore, the surface self-maintenance capacity of the concrete is improved.

Description

technical field [0001] The invention relates to a release agent, in particular to a water-based release agent for concrete formwork, in particular to a water-based release agent for metal formwork such as aluminum alloy and steel formwork and a production method. Background technique [0002] The building formwork is a temporary structure, which is manufactured according to the design requirements, so that the concrete structure and components are formed according to the specified position and geometric size, maintain their correct position, and bear the weight of the building formwork and the load acting on it. [0003] Building formwork includes bamboo formwork, wood formwork, steel formwork, etc. At present, the aluminum alloy formwork is a new generation of building formwork imported from abroad. It has the advantages of light weight, flexible disassembly and assembly, high rigidity, long service life, large board surface, less seams, high precision, smooth and clean pou...

AI Technical Summary

Problems solved by technology

However, the special release agent it uses is an oily release agent, which has defects such as high price, environmental pollution, flammability, and dirty operation by workers. The concrete surface is not clean and has oil stains. It is not suitable for buildings with exterior decoration. Dust may fall, such as the release agent stained on the steel bar, and even affect the structure of the concrete