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Concrete long-acting mould release agent and preparation method thereof

A release agent and concrete technology, which is used in manufacturing tools, ceramic molding machines, etc., can solve the problems of inability to ensure the decorative effect of the concrete surface, poor demoulding efficiency, and difficulty in meeting the quality requirements of non-polluting steel bars and concrete.

Inactive Publication Date: 2010-09-15
刘新智
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, hydrophobic substances are usually used as release agents in this field, such as engine oil (or waste engine oil), emulsified oil or soap solution, etc. Most of these release agents are disposable products, which cannot ensure the concrete surface Decorative effect, it is also difficult to meet the quality requirements of not polluting steel bars and concrete, etc., and the cost is high and the demoulding efficiency is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Heat 400g of epoxy resin to 110°C to melt it, add 120g of butanol and 360g of xylene to dilute it, stir and cool to about 50°C, then add 60g of butyl acetate and 60g of ethyl acetate, stir for 15 minutes to make it Fully dissolve, then add 10g of leveling agent and defoamer, stir for 15 minutes and filter to obtain the main agent of stencil paint.

[0021] Mix 6 g of citric acid, 20 g each of hydrofluoric acid and phosphoric acid, 10 g of sodium chloride, and 750 g of water and mix well, then add 5 g of sodium dodecylsulfonate, stir well, filter, and stand for 15 minutes to obtain the adhesive product.

[0022] When the product of this embodiment is used for template removal, the above-mentioned stencil paint main agent product is first mixed with ethylenediamine in a ratio of 100:4-7 to obtain a working solution of the stencil paint main agent; then the surface of the stencil is wiped with an adhesive Twice, after the liquid surface is dry, paint the template again wi...

Embodiment 2

[0024] Dissolve 55g of unsaturated polyester resin PE602 and 15g of unsaturated polyester resin PE608 in a mixed solvent composed of 35g of styrene, 42g of xylene, and 17g of acetone. After stirring for 15 minutes, add 5g of glass powder, 0.3g of wax slurry, 0.3g of leveling agent, stirred for 15 minutes, and filtered to obtain the main agent of stencil paint.

[0025] Mix 5 g of silicic acid and phosphoric acid, 5 g of potassium chloride, and 750 g of water and mix well, then add 1 g of polyoxyethylene ether, stir evenly, filter, and stand for 15 minutes to obtain the adhesive product.

[0026] When the product of this embodiment is used for template removal, first add 3g of blue water to the above-mentioned stencil paint main agent product, and then add 4.5g of white water after stirring for 10 minutes, filter and stand for 15 minutes after stirring to obtain the working solution of the stencil paint main agent ;Wipe the surface of the formwork with the adhesive agent twice,...

Embodiment 3

[0028] Take 70g of acrylic resin, add it to a mixed solvent consisting of 45g of toluene and 40g of ethyl acetate in turn, stir for 15 minutes, add 1g of wax powder (3922F) and stir evenly, stir for another 15 minutes, and filter to obtain the main agent of the stencil paint.

[0029] Mix 5 g of silicic acid and phosphoric acid, 5 g of potassium chloride, and 750 g of water and mix well, then add 1 g of polyoxyethylene ether, stir evenly, filter, and stand for 15 minutes to obtain the adhesive product.

[0030] Wipe the surface of the formwork twice with the adhesive, and then apply the main agent of the formwork paint to the formwork once after the liquid surface is dry. It will dry on the surface in two hours, dry in 24 hours, use it for concrete pouring after 48 hours, and demould after curing for 48 hours. , the paint film has good mold release properties.

[0031] In the development process of the present invention, in order to prove the actual use effect of the release a...

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PUM

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Abstract

The invention relates to a preparation method of a concrete long-acting mould release agent for preventing or reducing mutual bonding between concrete and the surface of a die plate. The method comprises two preparations: a die plate paint host crystal and an adhesive; wherein the die plate paint host crystal is prepared by processes such as mixing and filtering of epoxy resin or unsaturated polyester resin or acrylic resin, solvent and additive, while the adhesive is prepared by processes such as mixing and filtering of organic acid, in organic acid, inorganic salt, additive and water. In practical utilization, first, the surface of the die plate is wiped twice by the adhesive; then the die plate paint host crystal is brushed on the die plate for once to twice when liquid on the die plate is dried; afterwards a layer of smooth surface with smooth touch feel and sliding characteristics can be formed on the surface of the die plate when the die plate is solidified and dried. The substrate material processed by the mould release agent enjoys increased cohesion with the paint film, does not come off easily and enables the die plate to be repeatedly used.

Description

technical field [0001] The content of the invention belongs to the technical field of chemical preparation products, and relates to a concrete release agent that can be used to prevent or reduce the mutual adhesion of concrete and formwork surfaces and a preparation method thereof. Background technique [0002] Concrete molding needs to be fixed by formwork, and the formwork must be removed after the concrete has formed a certain strength. Concrete release agent is a preparation that can prevent or reduce the mutual bonding between concrete and formwork surface, so that formwork removal can be carried out smoothly. It can not only keep the appearance and shape of concrete intact, but also protect the formwork from damage due to knocking. In the prior art, hydrophobic substances are usually used as release agents in this field, such as engine oil (or waste engine oil), emulsified oil or soap solution, etc. Most of these release agents are disposable products, which cannot ens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B7/38
Inventor 刘新智
Owner 刘新智
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