KR20190030913A - Water-soluble stripper and anufacturing methodd thereof - Google Patents

Abstract

The present invention relates to a water-soluble stripping agent and a manufacturing method thereof. More specifically, the water-soluble stripping agent comprises 1-5 wt% of base oil, 1-5 wt% of lard oil, 1-5 wt% of tall oil or tall oil fatty acid (TOFA), 0.5-3 wt% of diethanolamine, and the remainder consisting of water. The manufacturing method of a water-soluble stripping agent comprises: a step of mixing 1-5 wt% of base oil, 1-5 wt% of lard oil, 1-5 wt% of tall oil or tall oil fatty acid (TOFA), 0.5-3 wt% of diethanolamine, and 40-50 wt% of water and homogeneously agitating the mixture for at least 1 hour to manufacture a first mixture; and a step of adding residual water to the first mixture and homogeneously agitating the mixture for at least 30 minutes to manufacture a final mixture. Excellent stripping effects can be provided, and stains or scratches on concrete surfaces after removal from forms can be prevented.

Description

[0001] WATER-SOLUBLE STRIPPER AND ANUFACTURING METHODD THEREOF [0002]

The present invention relates to a water-soluble release agent and a method for producing the same. More particularly, the present invention relates to a water-soluble release agent having excellent concrete peelability and a method for producing the same.

A conventional release agent for the production of concrete products is mainly prepared by dissolving an appropriate amount of a pressure-sensitive adhesive in petroleum such as lubricating oil, gasoline, kerosene, light oil, and solvent. That is, when the adhesive component dissolved in the petroleum is applied to the mold or the mold for making the concrete molding, the petroleum is evaporated and the remaining adhesive component is thinly coated in the mold to form a kind of film, It is based on the principle of easy demoulding without sticking.

However, the use of energy as a solvent to dissolve adhesives such as rosin is not desirable from the viewpoint of energy conservation. Therefore, it is uneconomical in view of the cost of the enterprise in the high oil price era, and the oil release agent using petroleum is used as a concrete release agent , There are problems in that the working environment is hindered due to skin diseases and odor, and soil pollution and air pollution are caused.

In recent years, as a concrete remover, it has gradually been replaced by a water-soluble remover in place of an oil-based remover.

The water-soluble exfoliating agent is less costly than the oil-based exfoliating agent, and can prevent skin diseases caused by the use of oil, and can be easily diluted with an appropriate amount of water in accordance with the production conditions of the field. However, there is a disadvantage that the demoulding capability is lowered and frequently needs to be cleaned due to contamination of molds or molds with concrete residues rather than oily release agents.

Korean Patent No. 10-0690251 discloses a process for producing a water-soluble release agent which is based on an oil obtained by mixing soybean oil and waste insulating oil at a certain ratio and adding liquid paraffin to supplement the lubricity and adding additives to improve the emulsified state and dispersibility .

However, even with this technique, improvement of concrete peelability may be limited.

Korean Patent Registration No. 10-0690251

SUMMARY OF THE INVENTION An object of the present invention is to provide a water-soluble release agent having excellent concrete peelability for solving the above-mentioned problems.

Another object of the present invention is to provide a production process for producing the water-soluble release agent.

1. A lubricant composition comprising 1 to 5% by weight of a base oil, 1 to 5% by weight of a lubricant oil, 1 to 5% by weight of tall oil or tall oil fatty acid, 0.5 to 3% by weight of diethanolamine, A water-soluble release agent comprising a residual amount of water.

2. The water-soluble release agent according to 1 above, further comprising 0.1 to 1% by weight of an incrementing agent, 0.05 to 0.5% by weight of a rust inhibitor and 0.05 to 0.5% by weight of an endoplasmic reticulum.

3. The water-soluble release agent according to 2 above, wherein the thickening agent is bentonite.

4. The antitheft agent of claim 2, wherein the rust inhibitor is 6,6 ', 6 "- (1,3,5-triazine-2,4,6-triyltrimino) trihexanoic acid (6,6' 6 " - (1,3,5-Triazine-2,4,6-triyltriimino) trihexanoic acid).

5. The water-soluble release agent as described in 2 above, wherein said elastomer is a silicon-based elastomer.

6. The process according to any one of claims 1 to 5, wherein 1 to 5% by weight of a lubricating oil, 1 to 5% by weight of a lubricating oil, 1 to 5% by weight of tall oil or tall oil retention dissolve, 0.5 to 3% by weight of diethanolamine and 40 to 50% Homogeneously stirring to prepare a first mixture; And

Adding the remaining amount of water to the primary mixture and homogeneously stirring for 30 minutes or longer to prepare a final mixture; ≪ / RTI >

7. The process for producing a water-soluble stripper agent according to 6 above, wherein 0.1 to 1% by weight of the incrementing agent, 0.05 to 0.5% by weight of an antirust agent and 0.05 to 0.5% by weight of an endoplasmic reticulum are further added in the step of preparing the primary mixture.

According to the embodiments of the present invention, it is possible not only to provide an excellent peeling effect, but also to prevent occurrence of stains or scratches on the concrete surface after demoulding.

In accordance with embodiments of the present invention, a composition comprising 1 to 5% by weight of a base oil, 1 to 5% by weight of a lard oil, 1 to 5% by weight of tall oil or tall oil fatty acid, A water-soluble release agent comprising 0.5 to 3% by weight of amine and a balance of water, 1 to 5% by weight of a lubricating oil, 1 to 5% by weight of a lubricating oil, 1 to 5% by weight of tall oil or tall oil- By weight and 40 to 50% by weight of water, and homogeneously stirring for 1 hour or more to prepare a first mixture; And adding the remaining amount of water to the primary mixture and homogeneously stirring for 30 minutes or longer to prepare a final mixture; A method for producing a water-soluble stripper agent is provided. From this, it is possible not only to provide an excellent peeling effect, but also to prevent stains and scratches on the concrete surface after demoulding.

Hereinafter, embodiments of the present invention will be described in more detail. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The water-soluble release agent according to one embodiment of the present invention includes Base oil, Rad oil, Tall oil or Tall Oil Fatty Acid, Diethanolamine and Water.

The above-mentioned base oil is a base oil of the water-soluble release agent according to the embodiment of the present invention and means mineral oil obtained from mineral raw materials such as petroleum, coal, tar, cell oil and the like.

The lubricating oil used in the embodiments of the present invention may be a general lubricating oil used in the related art. For example, one or more selected from among naphthenic, paraffin and olefin based oils may be used. But it is not limited thereto.

The lubricating oil may have a viscosity of 7 to 8 cSt and a specific gravity of 0.9 or less so as to ensure emulsification without deteriorating the fluidity of the water-soluble release agent. In this respect, the water-soluble release agent according to the embodiment of the present invention can be used, for example, by selecting P-8 (manufacturer: S-OIL) as a premium base oil as a lubricant flow path.

According to one embodiment of the present invention, the water-soluble release agent may comprise 1 to 5% by weight of a lubricating oil. If the content of the lubricant oil is less than 1% by weight, the peeling effect may be insignificant. If the content is more than 5% by weight, compatibility with other components may be deteriorated.

Rad oil is also called refined lard or lard, which is a stagnant fat containing fat from fat tissues of the pig, including deoxidation, washing, decolorization, deodorization, cleaning and filtration. Rad oil contains olein and fatty acid glycerides as main components and may have a specific gravity of 0.90 to 0.95, an acid value of 0.5 to 10, a saponification value of 195 to 196, and an oxo value of 36 to 74. Such lard oil is a colorless or pale yellow oily substance which does not dissolve in water but is soluble in benzol, ether, chloroform, diesel oil, carbon disulfide, etc., and can be used for the production of lubricity oil repellents, stearin, margarine and glycerin.

In the water-soluble release agent according to an embodiment of the present invention, the radial oil may be included in the role of maximizing the peeling effect and providing the oily effect, and may include 1 to 5 wt% of the total weight of the water-soluble release agent. When the oil content is less than 1% by weight, the peeling effect and oily effect may be significantly deteriorated. If the oil content is more than 5% by weight, It may cause stains or scratches on the wall surface.

According to one embodiment of the present invention, the water-soluble release agent may comprise Tall Oil or Tall Oil Fatty Acid.

Tall oil is a by-product of alkaline or sulfuric acid pearling of wood containing a large amount of resin, and is mainly composed of resin acid and fatty acid, which are small amount of main substance, and is light yellow or yellowish brown oily substance. In the case of tall oil, when the content of resin acid in an oily liquid is high, the resin acid is solidified and precipitates in the lower layer. Generally, the lower the content of resin acid, the more pale color develops. Tall oil can be used as an adhesive, an asphalt emulsion, a wetting agent, a binder, a cement additive, a plasticizer and the like.

Tall oil fatty acid (TOFA, Tall Oil Fatty Acid) is a fatty acid component separated from tall oil. It exhibits properties similar to tall oil. The water-soluble release agent according to an embodiment of the present invention includes at least one component selected from tall oil or tall oil fatty acid .

The water-soluble releasing agent can basically use a surfactant so that oil components such as oil and wax can be easily dispersed in water. The water-soluble releasing agent according to the present invention can be obtained by using tall oil or tall oil fatty acid, The emulsification property of water can be facilitated.

According to an embodiment of the present invention, tallow oil or tall oil fatty acid may be contained in a total amount of 1 to 5 wt%, and when the content of tall oil or tall oil fatty acid is less than 1 wt% , And if it is contained in an amount exceeding 5% by weight, the coating property of the releasing agent may be deteriorated.

Diethanolamine (DEA) is a colorless transparent viscous liquid with a formula C ₄ H ₁₁ NO ₂ and a molar mass of 105 g / mol at room temperature, but becomes a white crystalline solid when cooled. Diethanolamine is soluble in water or alcohol and can react with various acids to form esters, amides and salts. Such diethanolamine can be used as a raw material for a neutralizer or a foam stabilizer and can be used as a synthetic preparation and can be used as an emulsifier, a cosmetic of cosmetics, a surfactant wax, an additive such as pesticide, cutting oil or lubricant, a rust inhibitor additive, , A neutralizing agent, and the like.

In the water-soluble release agent according to the embodiment of the present invention, the diethanolamine serves as a surfactant, a rust inhibitor and a pH adjuster, and may be contained in an amount of 0.5 to 3% by weight based on the total weight of the water-soluble release agent. When the amount of the diethanolamine is less than 0.5% by weight, the peeling effect is remarkably reduced to complete the production of the concrete structure, and it may be difficult to demold the form from the product. If the amount exceeds 3% by weight, The surface of the concrete structure may be stained.

In some embodiments, the water-soluble release agent may include an aging agent, an antirust agent, and an endoplasmic reticulum as an additive.

Bentonite is a clay mainly containing montmorillonite, which is a minerals belonging to monoclinic which has a crystal structure such as mica that has been altered in volcanic ash and tuff. Bentonite is a white or pale yellow fine powder that does not dissolve in water, but swells when added to water, resulting in a volume about 10 times larger. Such bentonite can be used as a binder for use in metal hardware, as a mixing agent for powder soap, as a chelating agent to prevent foaming, and the like.

In some embodiments, the water-soluble release agent may be bentonite as an increasing agent for preventing the release agent from flowing down when applying the release agent to the form, and for example, Bentone 34 (manufactured by: Elementis Specialties) may be used.

The water-soluble excipient according to an embodiment of the present invention may contain an aging agent in an amount of 0.1 to 1% by weight. When the content of the thickening agent is less than 0.1% by weight, the function as the thickening agent may not be realized properly. When the content of the thickening agent is more than 1% by weight, coating difficulties may occur when using the releasing agent.

 The water-soluble exfoliating agent according to an embodiment of the present invention may further contain 0.05 to 0.5% by weight of rust preventive agent to prevent rust from forming due to the addition of a relatively large amount of water.

The rust preventive is not particularly limited as long as it is added to a water-soluble release agent to provide a rust preventive effect. For example, 6,6 ', 6 "- (1,3,5-triazine-2,4,6-tri (6,6 ', 6 "- (1,3,5-Triazine-2,4,6-triyltriimino) trihexanoic acid) can be used.

When the water-soluble releasing agent according to the present invention contains less than 0.05% by weight of the rust-inhibiting agent, the amount of the rust-inhibiting agent is too small to prevent the rust-preventive function from appearing and foreign matter or rust may be formed on the form. The applicability of the releasing agent may be deteriorated.

The rust inhibitor may be, for example, a water-soluble powder, and may be separately dissolved in water in order to improve the ease of mixing with other components added to the water-soluble release agent.

In some embodiments, the water soluble release agent may comprise from 0.05 to 0.5% by weight of the endoplasmic reticulum. The endoplasmic reticulum is used for inhibiting or eliminating the occurrence of bubbles in the production of foods and fine chemical products, and can be used without any particular limitations as long as it can be used in a water-soluble release agent. For example, an emulsion of a silicone- Soluble) to water-soluble can be used. In addition, when the endoplasmic reticulum is included in the above content range, it can stabilize the bubbles generated by the surfactant added to the water-soluble release agent.

According to one embodiment of the present invention, water may be added as a solvent capable of providing sufficient solubility for the above-mentioned components. The content of water may be included in the amount of the water-soluble releasing agent according to the present invention, excluding the lubricating oil, lard oil, tall oil or tall oil fatty acid, diethanolamine and other additives, as long as the object of the present invention can be achieved.

Hereinafter, a method for preparing a water-soluble release agent according to an embodiment of the present invention will be described.

The method of manufacturing a water-soluble stripper according to an embodiment of the present invention comprises firstly adding 1 to 5% by weight of a lubricant oil, 1 to 5% by weight of a lubricant oil, 1 to 5% by weight of tall oil or tall oil- And 40 to 50% by weight of water are sequentially added and stirred for 1 hour or more to prepare a homogeneously mixed primary mixture. Thereafter, the remaining amount of water is added to the primary mixture and the mixture is stirred for 30 minutes or more until the mixture is completely homogenized to prepare the final mixture.

The stirring temperature for preparing the primary mixture and the final mixture may be 40 to 50 캜, and stirring at this temperature range may improve the homogeneity of the mixtures.

In some embodiments, the primary mixture may be prepared by further adding 0.1-1 wt% of an incremental agent, 0.05-0.5 wt% of an antirust agent, and 0.05-0.5 wt% of an endoplasmic reticulum in the step of preparing the primary mixture.

If necessary, in the step of producing the primary mixture, the rustproofing agent is separately dissolved in water and added when 0.1 to 1% by weight of the incrementing agent, 0.05 to 0.5% by weight of rust inhibitor and 0.05 to 0.05% by weight of the elastomer are further added .

The water-soluble exfoliating agent produced by the above-mentioned production method can be commercialized after inspection of the product.

Hereinafter, exemplary embodiments of the present invention will be described in order to facilitate understanding of the present invention. However, the present invention is not limited to the following claims, It will be apparent to those skilled in the art that various changes and modifications can be made in the embodiment within the scope of the category and the scope of the invention, and such variations and modifications are within the scope of the appended claims.

Example  And Comparative Example

Example  One

50 wt% of water was added to the tank and 3 wt% of lubricating oil (P-8), 3 wt% of lard oil, 3 wt% of tall oil fatty acid, 1.3 wt% of diethanolamine, 0.5 wt% of aging agent, 0.25 wt% And 0.1% by weight of a silicone-based elastomer were sequentially added, and the mixture was stirred for 1 hour. Thereafter, the remaining amount of water was further added and stirred for 30 minutes to prepare a water-soluble releasing agent.

Comparative Example  1 to 5

The water-soluble exfoliants of Comparative Examples 1 to 5 were prepared in the same manner as in Table 1, except that the water-soluble exfoliant was prepared in the same manner as in Example 1 (unit: wt%).

division Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 P-8 3 - 3 3 3 8 Lad u 3 3 - 3 3 8 Tall oil fatty acid 3 3 3 - 3 8 Diethanolamine 1.3 1.3 1.3 1.3 - 5 Increasing agent (Benton 34) 0.5 0.5 0.5 0.5 0.5 3 Anti-rust agent (DS106) 0.25 0.25 0.25 0.25 0.25 2.5 Silicone-based elastomer 0.1 0.1 0.1 0.1 0.1 2.5 water Balance Balance Balance Balance Balance Balance

Experimental Example

The water-soluble release agent prepared in the above Examples and Comparative Examples was peeled by the following test method, and the results are shown in Table 2 below.

The mold for molding the test specimen was KS L 5105 (Test Method of Hydraulic Cement Mortar Compressive Strength) 3.4. Each of the release agents prepared in Examples and Comparative Examples was spread evenly on the wall of each mold, and then the ordinary Portland cement specified in KS L 5201 (Portland cement) and the sand and water specified in KS L ISO 679 were mixed at a ratio of 1: 2.45 : 0.48, and put into a mold. KS L 5105 10. The specimen was molded according to the molding method of the test specimen, and then cured for 48 hours at normal temperature and normal humidity.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Concrete peeling condition No attachment Above Above clear clear clear Concrete Foam Condition clear Above Above clear clear Above Concrete surface condition clear Above Above Above Above clear Air bubble condition clear clear clear Above Above clear Solubility clear clear clear Above Above Above Rustproof performance No rust clear clear clear clear clear Pour Point (℃) 0 0 0 0 0 0

As can be seen from the above Table 2, the water-soluble release agent of the Example shows excellent peeling effect, and it can be confirmed that there is no stain or scratch on the concrete surface after demoulding.

On the other hand, the comparative examples were significantly lower than those of the examples in terms of the peeling effect.

Claims (7)

1 to 5% by weight of a base oil, 1 to 5% by weight of a lubricant oil, 1 to 5% by weight of tall oil or tall oil fatty acid (TOFA), 0.5 to 3% by weight of diethanolamine, ≪ / RTI > The water-soluble stripper according to claim 1, further comprising 0.1 to 1% by weight of the increment, 0.05 to 0.5% by weight of rust inhibitor, and 0.05 to 0.5% by weight of the elastomer. The water-soluble release agent according to claim 2, wherein the thickener is bentonite. [6] The antitheft agent according to claim 2, wherein the rust inhibitor is 6,6 ', 6 "- (1,3,5-triazine-2,4,6-triyltrimino) trihexanoic acid '- (1,3,5-Triazine-2,4,6-triyltriimino) trihexanoic acid). The water-soluble release agent according to claim 2, wherein the elastomer is a silicon-based elastomer. 1 to 5% by weight of a lubricating oil, 1 to 5% by weight of a lubricant oil, 1 to 5% by weight of tall oil or tall oil-repellent acid, 0.5 to 3% by weight of diethanolamine and 40 to 50% by weight of water, To produce a first mixture; And
Adding the remaining amount of water to the primary mixture and homogeneously stirring for 30 minutes or longer to prepare a final mixture; ≪ / RTI > 7. A method according to claim 6, wherein 0.1 to 1% by weight of the incrementing agent, 0.05 to 0.5% by weight of an antirust agent and 0.05 to 0.5% by weight of an endoplasmic reticulum are further added in the step of preparing the primary mixture.