JP6674419B2 - Stripper stock solution, concrete stripper using the same, method of manufacturing the stripper stock solution, and method of manufacturing the concrete stripper - Google Patents

Description

    The present invention relates to a concrete molding technique, and in particular, manufactures a concrete release agent that can be applied to a concrete molding form to improve the releasability of concrete after molding and the finish of concrete surface. , From the field of providing and selling the equipment and instruments necessary for transport, storage, assembly and installation, as well as the fields provided, from the materials required for those materials, machinery and components, such as wood , Stone materials, various fibers, plastics, various metal materials, etc., electronic components incorporated in them, control-related equipment integrated with them, various measuring instruments, power equipment that moves the equipment and instruments Fields generally referred to as industrial machinery, such as the field of electricity, the source of electricity and the source of electricity, oil, and more. Testing and researching these facilities and equipment, and the fields related to their display, sale, import and export, general and the garbage generated as a result of their use and the operation of the facilities and equipment for making them There are almost no technical fields that are not related to the fields related to the collection and transportation of waste, the recycling field that efficiently reuses such waste, and new fields that cannot be expected at the moment.

(Points of interest)
The formwork for concrete molding is filled with ready-mixed concrete, preventing the concrete molding surface hardened by curing from sticking and making mold release difficult, and adjusting the finish of the concrete molding surface to a smooth surface. Further, in order to prevent scale (concrete residue) from remaining on the mold after release, a concrete release agent is generally used, and the concrete release agent is mainly oil-based. Things and water-based things are widely spread, and water-based things are heavy fog when spray painted, so unnecessary scattering to the surroundings can be suppressed, the color tone of the concrete finished surface is whiter than oily things, It has the advantage of less surface bubbles, more beautiful finish, and friendly to the natural environment, but on the other hand, the components of the release agent are easily separated, and during the application work to the mold, it is released. In order to avoid liquid separation, the coating operation must be carried out while maintaining the stirring state using a stirrer or circulation pump.If applied excessively, oil stain or poor curing may occur. Poor performance, heavy burden of mold release work, scale easily remains on mold after mold release, scale attached to mold is difficult to remove, it takes a lot of effort to remove the scale, and it is below freezing point It is easy to freeze under the environment and it is easy to freeze in winter, so it is necessary to keep the temperature appropriately.Therefore, there is a drawback that the work load is large, and the oily one is generally superior in releasability than the aqueous one, Scale is less likely to remain on the mold after release, and it is excellent in that it can be easily removed even if scale is attached, but on the other hand, if the viscosity is too high to apply it, heat it. To lower the viscosity Alternatively, it is necessary to consider a release agent with a lower viscosity, and if the concentration is erroneously applied at an extremely high magnification, the concrete may be hardened poorly, and the color tone of the finished surface of the concrete becomes dark. It is easy to cause oil stains and stains, deterioration and discoloration of the concrete molding surface due to the influence of ultraviolet rays, and there is a risk of oil components leaking out of the formwork if applied excessively, and the load on the natural environment is large. However, due to the heavy use of oils and fats, they become more expensive than aqueous ones, and if they are not dried over a certain period of time after being applied to a mold, there is a problem that a sufficient releasing effect cannot be obtained. there were.

(Conventional technology)
Proposals that reflect this situation and offer a breakthrough are not uncommon.
For example, as represented by the following Patent Document 1 (1), a monomethyl ester, a monoethyl ester or a monoisopropyl ester of an alkenyl succinic acid having an alkenyl group of C9 to C20 is contained. It is characterized by. In addition, the production method according to the present invention is characterized in that the unreacted oil generated when producing alkenyl succinic anhydride from monoolefin (C6 to C20) and maleic anhydride is washed with water, The unwashed unreacted oil (containing 1 to 40% by weight of alkenyl succinic anhydride) from which the alkenyl succinic anhydride has been removed is used as a raw material, and 10 to 100% by volume of methanol is added thereto, followed by stirring. The acid anhydride is extracted and separated in a methanol tank, and the methanol is distilled off, resulting in excellent solubility in base oils such as mineral oil, excellent reactivity with alkalis, and excellent performance as a surfactant. Satisfies required physical properties, excellent peelability, good finish of concrete surface, smoothness, hue, etc. Release agent for concrete form oil, its production method, and unsaturated C10-C22 unsaturated compound having one or two OH groups in a liquid water-repellent substance as disclosed in Patent Document 1 (2). Fatty acid or its organic salt and non-ionic surfactant are blended, it is excellent in aesthetics and peeling property by reducing surface bubbles, it is possible to save labor required for surface repair and mold cleaning, and quality is improved. Expected concrete mold release agents are found.

However, the release agent for concrete form oil as shown in the former patent document 1 (1) exhibits excellent release properties, finish property of the concrete surface, smoothness, hue, and the like. Kerosene, light oil, lubricating oil, or a mixture thereof is used as the base oil when used as a base oil, and the use of newly supplied oil as a raw material is indispensable. However, there is a drawback that the distribution price of petroleum may have a great effect, and the mold release agent for concrete shown in the latter Patent Document 1 (2) is also used for the concrete form oil of the former Patent Document 1 (1). Similar to the release agent, it has excellent properties such as releasability and concrete finish, but it uses machine oil and white spindle oil as the main components, and it also Since the use of petroleum, which is distribution and sale in the market has become necessary in, there was a shake is difficult drawback is to reduce the load on the production cost of savings and the natural environment.
(1) Japanese Patent Application Laid-Open No. H6-158859 (2) Japanese Patent No. 2951796

(Awareness of problems)
As described above, various types of concrete mold oil release agents that have been proposed up to now have a high viscosity because of the use of refined new oil in the case of oily ones, and the mixing amount of surface active components is naturally limited. Because it tends to occur and has poor emulsification stability, for example, if it is left overnight in a diluted state for spraying, the oil component separates from other components and cannot be used as it is. In addition to the drawbacks, any concrete form oil release agent, etc. will use a refined new oil product sold in the market as a major component, so it will not have to rely on oil products newly supplied to the market. In this situation, the applicant must always produce under the influence of the price of crude oil and the amount of crude oil supplied. , Which can exhibit more peeling performance, significantly improve the quality and appearance of the concrete finished surface, and can significantly improve the efficiency of release agent application work and mold release work, formwork cleaning work, etc., We are keenly aware of the need to develop and commercialize a completely new concrete release agent technology that can be produced and supplied stably at a low price without being affected by changes in the world situation or the market supply of petroleum products. It has been reached.

(Object of the invention)
Therefore, the present invention enables excellent releasability, remarkable improvement in the quality of the finished surface of the concrete, and recycling of petroleum resources, is friendly to the natural environment, and is inexpensive without being affected by the price of crude oil supply. Judging that it was not possible to develop a new concrete release agent technology that could provide a stable supply, we started development and research quickly and repeated trial and error over a long period of time and many trial productions and experiments. Finally, we have succeeded in realizing a new stock release agent solution, a new concrete release agent using the same, a method for producing the new stock solution, and a new production method for the concrete release agent. In the following, the configuration will be described in detail together with an embodiment representative of the present invention shown in the drawings.

(Structure of the invention)
As can be clearly understood from the embodiments of the present invention shown in the drawings, the stripper stock solution for the concrete stripper of the present invention basically has the following configuration.
That is, the high acid value wax (A) is 4 % by weight , the oiliness improver (B) is 1.5 % by weight , the emulsifier (C) is 4 to 5 % by weight , and the electric insulating oil (D) is 90.5 % or less . This is a stock solution for a concrete release agent, which has a constitution that is mixed at a ratio of 89.5 % by weight .

The stripper stock solution for a concrete stripper having this basic structure is more specifically described as a high acid value wax (A) containing 50% to 60% of maleated wax and 40% of paraffin wax. 4 % by weight of a 50% mixture, 1.5 % by weight of a condensed hydroxy fatty acid and its ester as an oiliness improver (B), 4 to 5 % by weight of a nonionic surfactant as an emulsifier (C), and electrical insulation It is a stripper stock solution for a concrete stripper having a configuration in which the waste electric insulating oil (D) as the oil (D) is mixed at a ratio of 90.5 to 89.5 % by weight .

More specifically, 4 % by weight of a mixture of 50% to 60% of a maleated wax as the high acid value wax (A) and 40% to 50% of the paraffin wax, and a neutralization value of 29 as the oiliness improver (B) 1.5 to 3% by weight of a condensed hydroxy fatty acid and its ester, 4 to 5 % by weight of a nonionic surfactant as an emulsifier (C), and 90 to 90 % of a waste electric insulating oil as an electric insulating oil (D). It is a stock solution for a concrete release agent having a structure mixed at a ratio of 5 to 89.5 % by weight .

(Related invention 1)
The present invention relates to the above-mentioned stock solution of stripping agent, and also includes a concrete stripping agent using the stock solution of stripping agent.
That is, water as a diluting solvent is mixed with the stripping agent stock solution forming the basis of the present invention in any one of the above-mentioned manners in a mixing ratio of the volume of the diluting solvent to the volume of the stripping agent stock solution of 1: 2 to 1 The concrete stripper according to any one of the above, wherein the mixture is a mixture of any one of the following:

    More concretely, the concrete release agent of the present invention is characterized in that water as a diluting solvent has a volume of the release agent stock solution with respect to the release agent stock solution forming the basis of the present invention described in any one of the above. The undiluted stripping agent which forms the basis of the present invention as described in any one of the above, wherein the mixture is mixed so that the mixing ratio of the volume of the diluting solvent with respect to the volume is any one of 1: 2 to 1: 8. It can be called a concrete release agent.

    In other words, in any one of the above, the diluting solvent for mixing water and alcohol with respect to the stripping agent stock solution forming the basis of the present invention is a mixing ratio of the volume of the diluting solvent to the volume of the stripping agent stock solution. Is mixed so as to be any one of 1: 2 to 1: 6, and the mixing amount of the alcohol is 5% of the whole mixture of the stripper stock solution and the diluting solvent. A concrete release agent using a stock solution of a release agent that forms the basis of the present invention as described in one aspect can be provided.

    In other words, in any one of the above, the diluent solvent of water and alcohol mixed with the stripper stock solution forming the basis of the present invention is the volume of the diluent solvent with respect to the volume of the stripper stock solution. The mixing ratio is 1: 2 to 1: 6, and the mixing amount of the alcohol is 15% of the total mixture of the stripper stock solution and the diluting solvent. Further, it is possible to provide a concrete release agent using the undiluted release agent solution according to any one of the above, which is the basis of the present invention.

(Related invention 2)
In connection with the above-mentioned stripper stock solution, the present invention also includes a method for producing the stripper stock solution.
That is, 4% by weight of the high acid value wax (A), 1.5% by weight of the oiliness improver (B), and a partly appropriate amount of the total amount of the electric insulating oil (D) were mixed, and the mixture was mixed at 70 ° C. After heating and melting to 95 ° C to obtain a main agent mixture (E), the main agent mixture (E) is radiated to 40 ° C, and an emulsifier (C) is added to the main agent mixture (E). 4 to 5% by weight are mixed to obtain a main agent mixed emulsion (F), and the total amount of the electric insulating oil (D) heated to 40 ° C. with respect to the main agent mixed emulsion (F) The method for producing a stock solution for stripping agent according to any one of the above, wherein

(Related invention 3)
The present invention relates to the above-mentioned stock solution for stripping agent and a concrete stripping agent using the same, and the present invention also includes a method for producing a concrete stripping agent using stock solution for stripping agent.
That is, the stripping agent stock solution according to any one of the above is gradually mixed at a ratio of 1: 1 with a diluting solvent heated to 70 ° C. to 95 ° C. to obtain a stripping agent dilution preparation source solution. Immediately before, with respect to the stripping agent dilution preparation stock solution, water as a diluting solvent at 0 ° C. to room temperature is added to the stripping agent dilution preparation stock solution, and the volume of the stripping agent stock solution is 1. The method for producing a concrete release agent using the stock solution for release agent according to any one of the above, wherein the dilution solvent is mixed so as to have a volume ratio of any one of 2 to 8.

    More specifically, hot water as a diluting solvent heated to 70 ° C. to 95 ° C. is gradually mixed with the stock solution of any one of the above at a ratio of 1: 1 to prepare a stripping agent dilution. After obtaining an undiluted solution for use, a water / alcohol mixture at 0 ° C. to room temperature as a diluting solvent is contained in the undiluted solution for diluent preparation just before use, with respect to the undiluted solution for diluent preparation. The stripper stock solution according to any one of the above, wherein the volume of the stripper stock solution is 1 and the volume of the diluting solvent is 2 to 6 in any one of 2 to 6. It is a method of manufacturing a concrete release agent used.

    As described above, according to the stripper stock solution for concrete stripper of the present invention, unlike the conventional ones, it is aqueous by being diluted with a diluting solvent from the unique characteristic configuration as described above. However, it is possible to achieve the same peeling effect as an oil-based concrete peeling agent, and because it is water-based, it does not generate stains or stains than oil-based concrete, and a beautiful concrete finished surface can be obtained. Since the raw material contains the electric insulating oil (D), the fluidity and the emulsification stability are particularly excellent, and the concrete release agent obtained by diluting the stock solution of the release agent with a diluting solvent. Can maintain its emulsified state for a longer period of time than conventional products. The workability of painting on the frame has been remarkably excellent, the concrete molding surface is finished in white color, bubbles are hardly generated, the mold release workability is good, and the scale (scum) is hardly left on the mold. In particular, those that effectively use waste electrical insulating oil (D), which is disposed of by electric power companies, as a raw material, need to significantly reduce industrial waste emissions and procure petroleum products for distribution to the market. The oil is no longer affected by the price of crude oil and can be produced with a stable supply, not only improving the performance of the concrete release agent, but also being friendly to the natural environment and significantly It can be produced economically, and in the case of conventional products, it was not possible to obtain a sufficient release effect unless it was dried for a certain amount of time after being applied to a concrete formwork. , Type Problem in peeling effect by pouring concrete immediately after application to is not, is to exert a special effect that those very helpful in shortening the production process and production time.

    In addition, concrete mixed with water as a diluting solvent in the stripping agent stock solution such that the mixing ratio of the volume of the diluting solvent to the volume of the stripping agent stock solution is 1: 2 to 1: 8. The release agent exhibits excellent release performance, and in particular, the mixing ratio of the diluting solvent in the mixture of water and alcohol to the volume of the diluting solvent stock solution is 1: 2 to 1: 6. The concrete stripping agent, which is mixed so as to be the same as the above, and in which the mixing amount of the alcohol is 5% of the whole of the stripping agent stock solution / diluting solvent mixture, is used as a concrete stripping agent for spring, summer and autumn. Achieving further excellent emulsion stability, it is possible to almost completely eliminate the adhesion of concrete to the formwork, and the mixing amount of the alcohol is 15% of the total amount of the stripper stock solution / diluting solvent mixture. Thus, by using a concrete release agent that is intended to be used at a temperature below the freezing point, it is possible to reduce the amount of alcohol mixed, as compared with a concrete release agent having an amount of alcohol exceeding 15%, and to manufacture more economically. In addition, even under sub-freezing conditions, it will exhibit significantly superior concrete peeling performance.

    By using the high acid value wax (A), a strong metal soap film can be formed by the acid of the high acid value wax (A) and the cement (alkali) in the concrete. Later, since a hydrophobic wax effect is also obtained, a more excellent releasing effect is exhibited, and the oiliness improver (B) has a synergistic effect with the high acid value wax (A), and a release effect equal to or higher than oiliness, Furthermore, a rust-preventing effect is obtained, and the use of an oiliness improver (B) having a neutralization value of 29 to 33 makes the formation of a metal soap film more effective. With liquids, it can be manufactured economically with a reduced amount of alcohol used, and succeeded in completing an aqueous release agent that does not freeze even at the freezing point in winter, which is not available in conventional products. Fear temperature changes throughout In addition, concrete molding and release operations can be performed, and if the concrete release agent is dried after being applied to a concrete formwork, a high magnification (for example, 1: 2 to 1:10) Even if the thickness is reduced to any one, a special effect that an excellent peeling effect can be obtained can be obtained.

    Further, according to the method for producing a stock solution of a stripping agent of the present invention, compared to the conventional method of manufacturing a concrete stripping agent, it is possible to make the manufacturing process much easier, and the manufacturing cost can be reduced simply by appropriately controlling the temperature in the manufacturing process. In addition to the above, the method for producing a concrete release agent of the present invention makes it possible to greatly reduce the volume of the stock solution of the release agent to 1 in any one of 2 to 8 for the spring / summer fall type. By mixing the solvent for dilution and the solvent for dilution so as to have a volume ratio of any one of 2 to 6 as a winter type, so that emulsification is outstanding as not seen in conventional products. Stability can be obtained, and the emulsified state can be maintained easily and for a long time without any special management even under various control conditions in a concrete factory or a concrete casting site. It features is obtained that can, can be reduced more economic burden.

In carrying out the present invention having the above-described configuration, the best or desirable mode will be described.
(Stripping agent stock solution and its manufacturing method)
The release agent stock solution serves as a base of the stock solution for release agent dilution preparation, and constitutes the most important component of the concrete release agent of the present invention. The high acid value wax (A) is 4 % by weight , oil-based. improver (B) is 1.5 wt%, unless as an emulsifier (C) is 4-5 wt% and an electrical insulating oil (D) is composed are mixed in a ratio of 89.5 percent by weight 90.5 Instead, it should be produced in a well-controlled environment such as a factory, such as dustproof, temperature-controlled, and ventilated.

The method for producing the stock solution of the release agent is as follows: 4 % by weight of high acid value wax (A), 1.5 % by weight of oiliness improver (B), 4 to 5 % by weight of emulsifier (C) and electric insulating oil (D) Must be mixed as homogeneously as possible in an amount of from 90.5 to 89.5 % by weight. the a) 4 wt%, oiliness improver (B) 1.5 wt%, and the electrical insulating oil (with mixing some appropriate amount in the mixed total amount of D), heated and dissolved to to 95 ° C. without 70 ° C. After obtaining the main agent mixture (E), the main agent mixture (E) is radiated to 40 ° C., and 4 to 5 % by weight of the emulsifier (C) is mixed with the main agent mixture (E). And a main agent mixed emulsion (F), and the main mixture was heated to 40 ° C. It is desirable to mix the remainder of the total amount of gas-insulating oil (D).

    A partly appropriate amount of the entire mixture of the electric insulating oil (D) is obtained by heating the main agent mixture (E) heated to 70 ° C. to 95 ° C. in the initial stage of the production process of the stock solution for the stripping agent and the emulsifier (C) in the next step In order to mix the emulsifier (C) with the main agent mixture (E), the necessary minimum amount of the emulsifier (C) can be efficiently mixed with the main agent mixture (E) for the purpose of improving the efficiency of the work by radiating the heat to 40 ° C. It can be said that the amount of the electric insulating oil (D) or an amount slightly larger than that, and as shown in the examples described later, 1/10 to 1/1 of the total amount of the electric insulating oil (D) mixed. It is desirable to mix a suitable amount, which is any one of the two, and the total remaining amount in the total mixing amount of the electric insulating oil (D) is the remaining amount.

The main agent mixture (E) is produced at a stage before the emulsifier (C) is added in the process of producing the stock solution of the release agent, and comprises a high acid value wax (A), an oiliness improver (B) and an electric insulating oil. (D) is efficiently and evenly mixed, and contains 4 % by weight of a high acid value wax (A), 1.5 % by weight of an oiliness improver (B), and 1.5 % by weight of an electric insulating oil (D). An intermediate product obtained by mixing an appropriate amount of the whole mixture and heating and dissolving it at 70 ° C. to 95 ° C., and adding an emulsifier to the main agent mixture (E) as the intermediate product. (C) was mixed at 4 to 5 % by weight to obtain a main agent mixed emulsion (F), which is another emulsified intermediate product, and heated to 40 ° C with respect to the main agent mixed emulsion (F). The basic of the present invention is to mix the entire remaining amount in the total mixing amount of the electric insulating oil (D). It is possible to obtain the eluant stock.

The high acid value wax (A) has a function of enhancing the release performance of the concrete release agent, and is mainly used for the main agent mixture emulsion (F) and the main agent mixture (E) as the release agent stock solution and its intermediate product. It is one of the raw materials, it is light-colored and odorless, has good pigment dispersibility, especially good carbon dispersibility, and can be said to be a wax having a low melt viscosity. Melting point 65-71 ° C Specific gravity about 0.8, acid value 69~99mgKOH / g high acid value waxes (a) is 3% to 5% by weight release agent stock solution, desirably it should be those containing 4 wt%, from 50% to maleinized wax 60 % And a paraffin wax of 40% to 50%. As shown in Examples described later, MP-WAX H-10 (manufactured by Chukyo Yushi Co., Ltd.) or an equivalent thereof Is good

The oiliness improver (B) has the function of further increasing the performance of the concrete release agent to reduce the friction between the formwork and the concrete surface. Specifically, the oiliness improver (B) has a high lubricating property for vegetable oils and fats such as castor oil. utilizing the sex, which share the ability to enhance the release function, it is desirable to condensation hydroxy fatty acids and their esters, 0.5 wt% to the release agent stock solution to 5% by weight, preferably from 1.5 weight %, And when the amount exceeds 1.5 % by weight , the emulsification deteriorates. At least 1.5 % by weight , the emulsification deteriorates. As shown, Minerazole R-335 (manufactured by Ito Oil Co., Ltd.) or an equivalent thereof is preferred.

The emulsifier (C) has a function of emulsifying the oily component contained in the concrete stripping agent and allowing the oily component to be uniformly dispersed. More specifically, the emulsifier (C) is generated during the process of producing a stock solution of the stripping agent. It is added to the main agent mixture (E) and has the function of changing from the main agent mixture (E) to the main agent mixture emulsion (F). More specifically, it should be a surfactant. It can be at least one of polyoxyethylene alkyl ether and polyoxyethylene alkyl phenol ether, HLB = 10-11 is suitable, and 2 % to 6 % by weight , preferably 4 % by weight in the stripper stock solution. good to to that contained 5 wt%, when mixed with the primary mixture (E) and the main agent mixed emulsion in the manufacturing process of the release agent stock solution (F), the major It is desirable that the temperature of the emulsifier mixture (E), the emulsifier (F) mixed with the main agent, and the emulsifier (C) itself be set to about 40 ° C. or 40 ° C. or less, which does not impair the emulsion stability. As shown in Examples described later, the specific gravity of the nonionic surfactant (manufactured by NOF CORPORATION) is preferably 1.04 or equivalent.

    The electric insulating oil (D) has a function of improving the peeling performance of the concrete release agent and the emulsification stability of the stock solution of the release agent, and may be referred to as oils and fats having properties that can be used as the electric insulating oil (D). It should be possible to use industrial oils with low viscosity, high flash point, low freezing point, electrical and chemical stability, excellent heat stability, oxidation stability, low oiliness, It is good to satisfy the property of being a low pour point, mineral oil, synthetic oil, and desirably at least one such as a mixed oil of mineral oil and synthetic oil, more specifically, for example, Additive-free high-refined oils, silicon synthetic oils, mixed oils of alkylbenzene and mineral oils, and, in other words, insulating oils widely used in electrical equipment such as transformers, capacitors, and cables (D) As shown in Examples described later, at least one of Class A1 to Class 7, Class B1 Class IEC to Class 6 IEC of Japanese Industrial Standard JIS C 2320 electrical insulating oil (D), or equivalent thereto. In consideration of the protection of the natural environment and economics, waste transformer oil and waste condenser oil are discharged as waste from electric power companies and must be properly managed, disposed or recycled. It is preferable to use a waste electric insulating oil (D) typified by the above.

The main agent mixture emulsion (F) is obtained by, after obtaining the main agent mixture (E) in the process of producing a stock solution for the stripping agent, radiating the main agent mixture (E) to 40 ° C. (E) is a mixture of 4 to 5 % by weight of an emulsifier (C), and is a pre-stage of a step of mixing the entire remaining amount in the total amount of the electric insulating oil (D) heated to 40 ° C. The intermediate product at about 40 ° C. is mixed with the remaining total amount of the mixture of the electric insulating oil (D) heated to 40 ° C. It is possible to obtain a stock solution of the stripping agent which is the basis of the invention.

(Concrete stripping agent and its manufacturing method)
The concrete release agent is a release agent stock solution, which is diluted to a concentration that can be easily applied by spraying, applying, or the like to a concrete molding frame. The mixture must be mixed so that the mixing ratio of the volume of the diluting solvent to the volume is any one of the volume ratios of 1: 2 to 1:10. Dilute the stock solution and maintain the mixed state of the stripper stock solution and the solvent for dilution in an extremely stable state for a long period of time, and at a place where facilities such as a concrete formwork installation site outside the factory are not well-equipped. Even if it passes through a stock solution for release agent dilution preparation, which is an intermediate product, diluted to a concentration that enables easy and homogeneous mixing work to a concentration that can sufficiently enhance workability such as spraying and coating. It is possible to make, as shown in the examples below, water as a diluent solvent for the stripper stock solution, the dilution solvent with respect to the volume of the stripper stock solution. The mixing ratio of the volumes may be any one of 1: 2 to 1: 8. In addition to the release agent stock solution, the diluting solvent of water and alcohol is mixed with the stock solution of the stripping agent. , 1: 2 to 1: 6, and the alcohol is mixed at 5% of the total volume of the stripper stock solution / diluent solvent mixture, When the mixing amount of the alcohol is less than 5% of the whole stripper stock solution / diluting solvent mixture, it is possible to obtain a particularly excellent emulsion stability by mixing the alcohol. Difficult, alcohol mixed over 5% It is ones, when used as intended for the spring summer and autumn, the effect of enhancing the emulsion stability was substantially equal to that emulsion stability despite alcohol was mixed for 5%. Further, the mixing amount of the alcohol may be 15% of the entire mixture of the stripper stock solution and the diluting solvent, and the alcohol may be used for subzero temperatures. The alcohol may be methanol (industrial alcohol, At least one of melting point-97.6.degree. C.) or ethanol (melting point-114.degree. C.) is used, and methanol is preferably used in terms of cost and emulsion stability.

    The method for producing a concrete stripping agent is as follows: the diluting solvent is mixed with the stripping agent stock solution, and the mixing ratio of the diluting solvent volume to the stripping agent stock solution is any one of 1: 2 to 1:10. As shown in Examples described later, a solvent for dilution heated to 70 ° C. to 95 ° C. is added to a stock solution for stripping agent (stock solution for stripping agent: solvent for dilution). = 1: 1: 1 to obtain a stripping agent dilution preparation source solution, and immediately before use, the stripping agent dilution preparation stock solution was mixed with water at 0 ° C. to room temperature or One of the diluting solvents of water / alcohol mixture at 0 ° C. to room temperature is mixed with the volume of the diluting agent stock solution contained in the diluting agent diluting preparation stock solution is 1 and the volume of the diluting solvent is 2 volumes. So that it will be mixed in any one of volume ratios It is possible to assume was.

As a concrete method for producing a concrete release agent, more specifically, a solvent for dilution heated to 70 ° C. to 95 ° C. is gradually mixed with a stock solution of the release agent at a ratio of 1: 1. After obtaining the diluent preparation source solution, immediately before use, water as a diluent solvent at 0 ° C. to room temperature is contained in the stripper diluent preparation stock solution. In addition to the volume of the stripping agent stock solution, the volume of the diluting solvent can be any one of 2 to 8 so as to be mixed with the volume of the stripping agent stock solution. Hot water as a diluting solvent heated to 70 ° C. to 95 ° C. was gradually mixed at a ratio of 1: 1 to obtain a stock solution for preparing a stripping agent dilution. Water / alcohol at 0 ° C to room temperature as a diluting solvent The mixed solution is mixed so that the volume of the diluent solvent contained in the undiluted preparation solution for diluent is 1 and the volume of the diluting solvent is any one of 2 to 6. It can be done.
In the following, the structure of the present invention will be described in detail, together with the embodiment shown in the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The drawing shows a typical embodiment which embodies the technical idea of the stripper stock solution of the present invention, a concrete stripper using the same, a method of manufacturing a stripper stock solution, and a method of manufacturing a concrete stripper. It is shown.
It is a conceptual diagram which shows the initial state of the manufacturing process of a stripper stock solution. It is a conceptual diagram which shows the middle stage state of the manufacturing process of a stripper stock solution. It is a conceptual diagram which shows the late state of the manufacturing process of a stripper stock solution. FIG. It is a conceptual diagram which shows the initial state of the manufacturing process of a concrete peeling agent. It is a conceptual diagram which shows the late stage of the manufacturing process of a concrete peeling agent.

1 to 3 show the case where the high acid value wax (A) is 4% by weight , the oiliness improver (B) is 1.5 % by weight , the emulsifier (C) is 4 to 5 % by weight, and the electric insulating oil ( D) is a mixture of 90.5 to 89.5 % by weight , and a typical method of producing a stock solution of a stripping agent for a concrete stripping agent, which is the basis of the present invention, is shown in the order of the steps. This is one embodiment.
The stripper stock solution for concrete stripper of the present invention is a mixture of a high acid value wax (A) containing 4 % by weight as a raw material, maleic wax 50% to 60% and paraffin wax 40% to 50%. Yes, more specifically, MP-WAX H-10 (manufactured by Chukyo Yushi Co., Ltd.) having a melting point of 65 to 71 ° C., a specific gravity of about 0.8, an acid value of 69 to 99 mg KOH / g, and as an oiliness improver (B) 1.5 % by weight is a condensed hydroxy fatty acid and its ester, which is Minerazole R-335 (manufactured by Ito Oil Co., Ltd.), and the electric insulating oil (D) is Japanese Industrial Standard JIS C 2320 electric insulating oil. (D) At least one of Class A1 to Class 7 and Class B1 Class IEC to Class 6 IEC, especially discharged from electric power companies as industrial waste and properly managed It must be processed, and the waste electric insulating oil, such as waste transformer oil (D), also being mixed 4-5 wt% as an emulsifier (C) is the HLB = 10 to 11, polyoxyethylene alkyl ethers Or a polyoxyethylene alkylphenol ether, which is a so-called surfactant, and has a nonionic surfactant (manufactured by NOF Corporation) having a specific gravity of 1.04.

As can be clearly understood from each of FIGS. 1 to 3, the release agent stock solution contains 4 % by weight of high acid value wax (A), 1.5 % by weight of oiliness improver (B), and electric insulating oil. (D) A suitable amount of any one of 1/10 to 1/2 of the total amount of the mixture (D) is mixed, and the mixture is heated and melted to 70 to 95 ° C (around 80 ° C) to form a mixture of the main agent ( After obtaining E), the main agent mixture (E) is radiated to 40 ° C., and then the emulsifier (C) is mixed with the main agent mixture (E) in an amount of 4 to 5 % by weight, and the mixture is thoroughly stirred. Mixing the electric insulating oil (D) heated to 40 ° C. with the main agent mixed emulsion (F) maintained at 0 to 40 ° C., preferably 40 ° C. It is manufactured by mixing the remaining whole amount which is any one of 9/10 to 1/2 of the whole amount.

    As shown in FIGS. 4 and 5, the stripper stock solution produced as described above is prepared by adding a diluting solvent heated to 70 ° C. to 95 ° C., preferably to 80, with respect to the stripper stock solution (the stripper stock solution). : Solvent for dilution) = 1: 1 to obtain a stripper diluent preparation source solution and mix it with the stripper diluent preparation stock solution at 0 ° C to room temperature immediately before use. Either water or a solvent mixture of water and alcohol at a temperature of 0 ° C. to room temperature is added to the stock solution for diluent preparation for diluting with respect to 1 for the volume of the stock solution for stripping agent dilution. The volume of the solvent can be 2 to 10, preferably 2 to 8, and the most preferable volume ratio is, for example, 1: 3, and the concrete release agent is mixed. Complete.

When the diluting solvent is a water / alcohol mixture, the alcohol contained in the water / alcohol mixture is improved in emulsification stability for spring / summer fall and economic considerations. It may be about 5 % by weight of the entire release agent, for example, methanol (industrial alcohol) may be used. Further, in consideration of the antifreezing performance and economy, the entire concrete release agent may be used. About 15 % by weight , for example, methanol (industrial alcohol) can be used.

(Operation and Effect of First Embodiment)
As shown in FIGS. 1 to 3, the stripper stock solution for a concrete stripper of the present invention having the above-described structure comprises a high acid value wax (A), an oiliness improver (B), and an electrical insulating oil. A main agent mixture (E) is produced by mixing a suitable amount of the total amount of (D) while heating and dissolving it at 70 ° C. to 95 ° C. to prepare a main agent mixture (E). After radiating heat to the main agent mixture (E), the emulsifier (C) was mixed with the main agent mixture (E) to obtain a main agent mixture emulsion (F). Since the entire remaining amount of the heated electric insulating oil (D) is mixed, the main agent mixture (E) can be more efficiently heated to 70 to 95 ° C., Excellent mixing workability, more homogeneous mixing, and mixing of the main agent mixed emulsion (F) The release agent stock solution produced by the above-mentioned operation is not easily separated from the mixed components even if it is stored for a long period of time. Since the electric insulating oil (D) is used, an excellent characteristic that industrial waste can be reduced and manufactured at a lower cost can be obtained.

    The use of the electric insulating oil (D) can contribute to the reuse of industrial oil waste oil and resource saving, and the electric insulating oil (D) has a low density and excellent fluidity. Due to the properties, it is possible to take in more additives that exert a peeling effect, and since the purity is inferior to refined new oil, the property as an oil is weakened, so if a small amount of surfactant is mixed Has excellent emulsification stability, can be diluted 2 to 10 times with water (3 to 9 times depending on conditions such as temperature), has no ignition problem, and has a much lower environmental load than oily ones. Less product.

    The concrete release agent of the present invention is prepared by gradually mixing a solvent for dilution heated to 70 ° C. to 95 ° C. with a stock solution of release agent at a ratio of (stock solution for diluent: solvent for dilution) = 1: 1. After obtaining the diluent preparation source solution, immediately before use, the stripper diluent preparation stock solution is either 0 ° C. to room temperature water or 0 ° C. to room temperature water / alcohol mixture. One of the diluting solvents was mixed such that the volume of the diluent solvent contained in the diluent diluent preparation stock solution was 1, and the volume of the diluent solvent was 3 by volume. Excellent emulsification stability that is not seen in conventional products is obtained.In conventional products, the solvent for dilution in the concrete release agent is separated from the undiluted solution component of the release agent overnight, and is stirred each time it is used. It was necessary, but this was resolved, and the concrete release agent Even after one week from the production, it will be maintained in a stable emulsified state. Particularly, when the diluting solvent is a water / alcohol mixture, the mixing amount of the alcohol is the release agent stock solution / diluting solvent. The amount of 5% of the total mixture can be used as a concrete release agent for spring, summer, and autumn, which can achieve remarkably excellent emulsification stability. 15% of the total liquid is an aqueous release agent that does not freeze even in the mid-zero winter, significantly improving the workability of concrete molding and formwork removal work in winter, and greatly improving the quality of concrete molding surfaces. Can be enhanced.

As shown in Tables 1 and 2 below, a concrete release agent having a mixing ratio of a stock solution of release agent to a dilution solvent of 1: 3 was spray-coated on a steel mold having a size of 400 mm × 400 mm × 60 mm, and the volume ratio was adjusted. Cement: sand: gravel = 1: 2: 3 concrete poured in and natural curing (natural curing is a more severe condition because the reaction time between the mold release agent and concrete is longer than steam curing.) After 72 hours, an experiment was conducted to check the demolding, finished product, and the state of adhesion to the formwork. As a result of trial production and experiment for each sample of (1) to (10), the results of (1) and (8) were high. The acid value wax (A) is mixed at a ratio of 4 % by weight , the oiliness improver (B) is mixed at a ratio of 1.5 % by weight , the emulsifier (C) is mixed at a ratio of 4 % by weight, and the electric insulating oil (D) is mixed at a ratio of 90.5 % by weight. Concentrates using stripper stock solution Over preparative release agent, (the solvent for dilution water) spring summer and autumn type), and, winter type (diluent solvent, any of water-alcohol mixed solution) to obtain a conclusion that the best.

    The winter type experiment focuses on the fact that in the severe cold winter season, the interior of the casting room is below freezing, and even if the ready-mixed concrete is cold-resistant, the aqueous release agent can be used without freezing. The mold was removed after 72 hours of natural curing under severe cold conditions, but the same good results as the spring / summer fall concrete release agent were obtained.

(Conclusion)
As described above, the stripper stock solution of the present invention, a concrete stripper using the same, a method of manufacturing a stock solution of the stripper, and a method of manufacturing a concrete stripper can achieve the intended purpose with a novel structure. It is also easy to manufacture, and compared with the conventional technology of concrete release agent, the series of operations such as concrete molding and use of concrete formwork, mold release, maintenance and storage have been greatly improved, In addition to significantly improving the quality of the concrete molding surface, the effective use of oil and fat industrial waste has reduced the environmental burden, and the concrete release agent and the concrete molding cost using it have been significantly reduced. Until now, the quality of the concrete molding surface, especially the effects of winter climate and temperature, can be economical. In addition to concrete and construction industries that have been trying to improve various technologies such as mold release workability after concrete molding, general consumers who want to provide low-cost, high-quality concrete molding technology, It is highly evaluated by companies and organizations, and is expected to be widely used and spread.

High acid value wax (A)
Oiliness improver (B)
Emulsifier (C)
Waste electrical insulating oil (electric insulating oil) (D)
Main agent mixture (E)
Main agent mixed emulsion (F)

Claims (10)

    High acid value wax (A) is 4% by weight, oiliness improver (B) is 1.5% by weight, emulsifier (C) is 4 to 5% by weight, and electric insulating oil (D) is 90.5 to 89.5. A stripper stock solution for a concrete stripper, characterized by being mixed at a ratio of weight%.     4% by weight of a mixture of 50% to 60% of a maleated wax and 40% to 50% of a paraffin wax as a high acid value wax (A), and 1.5% of a condensed hydroxy fatty acid and an ester thereof as an oiliness improver (B). %, 4 to 5% by weight of a nonionic surfactant as an emulsifier (C), and 90.5 to 89.5% by weight of a waste electric insulating oil as an electric insulating oil (D). A stripper stock solution for a concrete stripper, characterized in that:     4% by weight of a mixture of 50% to 60% of a maleated wax as a high acid value wax (A) and 40% to 50% of a paraffin wax, and a condensed hydroxy fatty acid having a neutralization value of 29 to 33 as an oiliness improver (B) And 1.5% by weight of an ester thereof, 4 to 5% by weight of a nonionic surfactant as an emulsifier (C), and 90.5 to 89.5% by weight of a waste electric insulating oil as an electric insulating oil (D). (1) A stripper stock solution for a concrete stripper, characterized by being mixed at a ratio of:     4. The mixing ratio of the volume of the diluting solvent to the volume of the stripping agent stock solution is 1: 2 to 1:10 with respect to the stripping agent stock solution according to any one of claims 1 to 3. 4. A concrete stripping agent using the stock solution of stripping agent according to any one of claims 1 to 3, wherein the stripping agent is mixed to be one.     4. The mixing ratio of the volume of the diluting solvent to the volume of the stripping agent stock solution is 1: 2 to 1: 8 with respect to the stripping agent stock solution according to any one of claims 1 to 3. 4. A concrete stripping agent using the stock solution of stripping agent according to any one of claims 1 to 3, wherein the stripping agent is mixed to be one.     4. The stripping agent stock solution according to claim 1, wherein the mixing ratio of the diluting solvent of water and alcohol mixed to the volume of the stripping agent stock solution is 1: 2 to 1: 6. The stripping agent stock solution according to any one of claims 1 to 3, wherein the alcohol is mixed such that the mixing amount of the alcohol is 5% of the entire stripping agent stock solution / diluting solvent mixture solution. Concrete release agent used.     4. The solvent for diluting water and alcohol mixed with the stripping agent stock solution according to any one of claims 1 to 3, wherein the mixing ratio of the volume of the diluting solvent to the volume of the stock solution is 1: 2 to 1: 6. The mixture according to any one of claims 1 to 3, wherein the alcohol is mixed so as to be any one of them, and the mixed amount of the alcohol is 15% of the entire mixture of the stripping agent stock solution and the diluting solvent, and is used for subzero temperatures. A concrete release agent using the undiluted solution of the release agent according to one of the above.     The diluent solvent heated to 70 ° C. to 95 ° C. is gradually mixed with the stripper stock solution according to any one of claims 1 to 3 at a ratio of 1: 1 to obtain a stripper preparation solution. Immediately before use, either one of water as a diluting solvent at 0 ° C. to room temperature or a mixture of water and alcohol is added to the stripping agent dilution preparation stock solution just before use. 4. The method according to claim 1, wherein the volume of the diluting solvent is 2 to 10 and the volume of the diluting solvent is 2 to 10 with respect to 1. A method for producing a concrete release agent using the stock solution for release agent according to any one of the above.     The diluent solvent heated to 70 ° C. to 95 ° C. is gradually mixed with the stripper stock solution according to any one of claims 1 to 3 at a ratio of 1: 1 to obtain a stripper preparation solution. Immediately before use, water as a diluting solvent at 0 ° C. to room temperature is added to the undiluted solution for diluting preparation before the use to reduce the volume of the undiluted diluting solution to 1 to 1 A concrete release agent using the stock solution for release agent according to any one of claims 1 to 3, wherein the solvent for dilution is mixed so as to have a volume ratio of any one of 2 to 8. Manufacturing method. 4. A stock solution for preparing a stripping agent dilution is prepared by gradually mixing hot water as a diluting solvent heated to 70 ° C. to 95 ° C. in a ratio of 1: 1 with the stock solution of any one of claims 1 to 3. And a water-alcohol mixture at 0 ° C. to room temperature as a diluting solvent was added to the stripping agent dilution preparation stock solution immediately before use. The stripping agent according to any one of claims 1 to 3, wherein the stock solution is mixed so that the volume of the diluting solvent is one of 2 to 6 with respect to the volume of the stock solution. A method for producing a concrete stripper using a stock solution.

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