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A kind of concrete release agent and preparation method thereof

A technology of concrete release agent and organic solvent, which is applied in the direction of manufacturing tools and ceramic molding machines, etc. It can solve the problems that the concrete exterior formwork paint cannot be applied quickly and the release agent cannot be obtained well, so as to reduce surface pores and water loss , The effect of excellent product performance

Active Publication Date: 2015-11-25
天津冶建特种材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to solve the problem that the traditional mold release agent cannot obtain a good concrete appearance and the problem that the formwork paint cannot be quickly applied

Method used

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  • A kind of concrete release agent and preparation method thereof
  • A kind of concrete release agent and preparation method thereof
  • A kind of concrete release agent and preparation method thereof

Examples

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preparation example Construction

[0032] The invention provides a release agent for concrete with functions of improving surface smoothness and maintenance and a preparation method thereof. The preparation method includes the following steps: cleaning the waste high polymer, drying and pulverizing properly, adding an organic solvent and stirring to dissolve it.

[0033] Most of the release agents in the prior art are products obtained by simply emulsifying natural oil or oil-like substances as the main film-forming substance under the joint action of other auxiliary materials.

[0034] And the present invention, is to use the synthetic resin of petrochemical products, the waste material of plastic completely as film-forming material, in use, not only can guarantee stable performance, and can turn waste into wealth, reduce white pollution.

[0035] In the prior art, although some release agents use chemical products as film-forming substances, their film-forming substances are surface-active substances. As we a...

Embodiment 1

[0041] The waste high polymer is: 60 parts of polyurethane waste foam plastics;

[0042] The organic solvents are: 40 parts of dimethylformamide and 70 parts of dibutyl adipate.

[0043] The concrete release agent is prepared by the following method:

[0044] a. Clean the waste high polymer, remove the dirt that affects the film-forming property of the waste high polymer, and the dirt that affects the color of the finished concrete release agent.

[0045] b. Dry the waste high polymer to reduce the water content of the cleaned waste high polymer to the following level: it can be well dissolved in the solvent without delamination or precipitation. This step is generally to reduce the water content of the cleaned waste high polymer to: 0.1%-1%.

[0046] c. Grinding the waste high polymer into granules: Grinding the dried waste high polymer into granules with a particle diameter of 3-50 mm.

[0047] d. Add an organic solvent and stir to dissolve it to obtain the product.

[004...

Embodiment 2

[0054] The waste high polymer is: 60 parts of clean and dry polyurethane waste foam plastics;

[0055] The organic solvents are: 35 parts of dimethyl sulfoxide and 70 parts of diethylene glycol monobutyl ether.

[0056] The concrete release agent is prepared by the following method:

[0057] a. Clean the waste high polymer, remove the dirt that affects the film-forming property of the waste high polymer, and the dirt that affects the color of the finished concrete release agent.

[0058] b. Dry the waste high polymer to reduce the water content of the cleaned waste high polymer to the following level: it can be well dissolved in the solvent without delamination or precipitation. This step is generally to reduce the water content of the cleaned waste high polymer to: 0.1%-1%.

[0059] c. Grinding the waste high polymer into granules: Grinding the dried waste high polymer into granules with a particle diameter of 3-50 mm.

[0060] d. Add an organic solvent and stir to dissolv...

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Abstract

The invention discloses a concrete release agent and a preparation method thereof. The preparation method comprises the following steps of: cleaning the waste high polymer; drying the waste high polymer; crushing the waste high polymer into particles; and adding an organic solvent and stirring for dissolution. The waste high polymer is an oil-soluble thermoplastic plastic or fiber with the molecular weight of 1,000-1,000,000. The waste high polymer is the waste plastic or fiber taking polyurethane, nylon, polystyrene, polyethylene, polysulfone and / or polrvinyl chloride as raw materials. The concrete release agent disclosed by the invention is a novel release agent product turning waste into wealth by taking the industrial and household garbage such as waste foamed plastics and the like as raw materials; the chemical operations such as heating, pressurizing and the like are not needed in the production process, thus the industrial production is facilitated; and when a mould without too many scratches is used, the concrete surface can be made flat and bright as porcelain, and the water loss on the concrete surface can be reduced to realize a certain conservation effect.

Description

technical field [0001] The invention relates to the technical field of reagents for concrete, in particular to a concrete release agent which has a maintenance effect and can greatly improve the surface finish of concrete and a preparation method thereof. Background technique [0002] With the full development of our country's infrastructure construction, the amount of concrete used in railways, highways, bridges and other buildings has increased greatly, so higher requirements have been put forward for the construction speed and quality of concrete. At the same time, in order to better reflect the green and environmental characteristics of modern concrete technology, the application of decoration-free concrete is also being rapidly promoted and popularized. In order to achieve a good concrete appearance, a good release agent is essential. [0003] Concrete release agent generally adopts waste machine oil, vegetable residue etc. to be mixed with in the market at present, ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B7/38
Inventor 郭诚徐盛玉刘文帅刘伟
Owner 天津冶建特种材料有限公司
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