Emulsified oil-type release agent and preparation method thereof

Abstract

The invention provides an emulsified oil-type release agent. The emulsified oil-type release agent comprises, by weight, 10 to 30 parts of raw material oil, 1 to 10 parts of a film-forming material, 0.5 to 6 parts of an emulsifier, 0.1 to 2 parts of an antifoaming agent, 0.1 to 3 parts of a preservative, 0.5 to 5 parts of a rust inhibitor, 1 to 5 parts of a stabilizer and 60 to 90 parts of water, and the molecular weight of the film-forming material is less than 2000. The method comprises (1) orderly adding emulsified crude oil, an emulsifier and water into a reactor and carrying out stirring emulsification and (2) orderly adding auxiliary agents according to the amounts under the condition of stirring, controlling system pH and consistency of the system until the system forms a uniform liquid and stopping stirring to obtain the release agent. The emulsified oil-type release agent has the characteristics of good demolding effects, good oiliness, good smooth feeling, difficult adhesion to ash, mold cleaning easiness, smooth surface of the demolded concrete, simple processes, low cost and good feasibility to a wood mold, an aluminum mold and a steel mold.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular, to an emulsified oil-based mold release agent and a preparation method thereof. Background technique [0002] A release agent is a functional substance between the mold and the finished product. It is used as an interface coating on the surfaces of two objects that are easy to stick to each other. It can make the surface of the object easy to release, smooth and clean. Urbanization has driven the steady development of the construction industry, and the requirements for building materials are getting higher and higher. Concrete release agents are one of the important elements of building materials. Concrete release agent refers to a substance smeared on the construction formwork before concrete pouring, so that the formwork will not stick to the concrete surface after pouring, not easy to remove the formwork, or affect the finish of the concrete surface. Its main functi...

AI Technical Summary

Problems solved by technology

[0003] Existing concrete products and construction industry templates are prone to rust when stored, air bubbles on the concrete surface, easy pollution on the concrete surface, and difficulty in demoulding and cleaning. In use, the release agent is prone to uneven dispersion and easy deposition. , There is a problem of weak bonding between the release agent and the mold, which is easy to be wiped off and affects the normal process operation and the effect of the finished product, which cannot meet the production needs

The demoulding effect is not good, it is difficult to remove the formwork, and the formwork is not well maintained, which affects the construction efficiency and increases the construction cost

Although, Publication No. CN 103666739 A (publication date is March 26, 2014) discloses a concrete release agent, which has good demoulding effect, smooth concrete after demoulding, and prolongs the service life of steel molds, but the formula It is more complicated, and the film formation and adhesion are not very ideal, which limits its scope of use

Images