JP2019111819A - Release agent stock solution, concrete release agent using this, manufacturing method of release agent stock solution and manufacturing method of concrete release agent - Google Patents

Abstract

To provide a new concrete release agent technology with excellent release property, which has greatly improved the quality of the concrete finish surface, can make use of recycled oil resource, is environment friendly and can be supplied for low cost without being influenced by crude oil supply price.SOLUTION: The release agent stock solution for concrete release agent is made by mixing mixture at 4 weight/capacity % of maleated wax of 50% or 60% and paraffin wax 40% - 50% as high acid value wax (A), condensed hydroxy fatty acid and its ester as oiliness improver (B) at 1.5 weight/capacity %, nonionic surface active agent as emulsifier (C) at 4 or 5 weight/capacity % and trans-oil as electrical insulation oil (D) at 90.5 or 89.5 weight/capacity %.SELECTED DRAWING: Figure 3

Description

    The present invention relates to a concrete molding technique, and in particular, it is applied to a concrete molding form, and a concrete release agent capable of improving the releasability of concrete after molding and the finish of the concrete surface is manufactured. From the field of providing and selling the equipment and instruments necessary for transportation, storage, assembly and installation, as well as the fields of provision, materials required for such materials, machines and parts, for example, wood , Stones, various fibers, plastics, various metal materials, etc., electronic components incorporated in them, control related devices integrated with them, field of various measuring instruments, power equipment for moving the equipment, equipment The field generally referred to as industrial machinery generally, such as the field of electricity, the field of electricity, which is the energy source, and the field of the energy, and further Test and research on equipment, instruments, fields related to their display, sales, import / export, general, results of their use and equipment for making them, waste generated by operation of instruments, etc. There are no technical fields that are not related to fields other than fields related to waste collection, transportation, etc., recycling fields that efficiently reuse those wastes, and new fields that can not currently be envisioned.

(Point of attention)
The form for concrete molding is filled with fresh concrete, and the hardened concrete molding surface is fixed by curing and prevents mold release from becoming difficult, and the finish of the concrete molding surface is smoothened In addition, in order to prevent scale (concrete residue) from remaining in the mold after release, a concrete release agent is generally used, and the concrete release agent is mainly oil-based. Because water-based and water-based ones are widely used, and the water-based ones are spray-painted, the fog is heavy, so unnecessary scattering to the surroundings can be suppressed, and the color tone of the concrete finished surface is whiter than oil-based ones, It has the advantages of less surface air bubbles, more beautiful finish, and natural environment-friendly, but on the other hand, it is easy to separate the components of the mold release agent, and the mold release operation is performed during coating operation In order to prevent liquid separation, the coating operation must be continued while maintaining the stirring condition using a stirrer or a circulation pump, etc. If it is applied excessively, there is a risk of causing oil stain or curing failure. Poor performance, heavy burden on mold release operation, scale tends to remain in mold after release, scale attached to mold is hard to remove, removal of scale takes a lot of labor, and below freezing point Under environment, it is easy to freeze, and it is easy to freeze in winter, so it needs to be kept warm properly, etc., and there is a disadvantage that the operation is heavy, and oily ones generally have better releasability than aqueous ones, It is excellent in that scale does not remain in the mold after mold release and it can be easily removed even if the scale is attached, but on the other hand, if the viscosity is too high and coating is difficult, heating is possible. Adjust the viscosity low If it is necessary to consider a lower viscosity mold release agent and the concentration adjustment is applied by an extremely high ratio by mistake, there is a risk that the concrete will be cured poorly, and the color tone of the concrete finished surface becomes dark. It is easy to cause oil stains and stains, deterioration of the concrete molding surface due to the influence of ultraviolet light, discoloration etc. If it is applied excessively, there is a possibility that oil components may leak out of the mold, etc. Due to the use of many oils and fats, it becomes more expensive than water-based ones, and after it has been applied to a mold, it takes a certain amount of time to dry it before it can not obtain a sufficient mold release effect. there were.

(Prior art)
It is not uncommon to see some proposals that reflect such circumstances and serve as a solution.
For example, as represented by what is proposed in Patent Document 1 (1) below, containing monomethyl ester, monoethyl ester or monoisopropyl ester of alkenyl succinic acid having a C9 to C20 alkenyl group. It is characterized by Further, the method for producing the same according to the present invention comprises washing the unreacted oil generated when producing alkenyl succinic anhydride from mono-olefin (C6-C20) and maleic anhydride, and washing with maleic anhydride to wash away the unreacted oil. Using 10 to 100 vol% of methanol as a raw material, using the water-washed unreacted oil (containing 1 to 40 wt% of alkenyl succinic anhydride) from which 10 The acid anhydride is extracted and separated in a methanol tank and methanol is distilled away, so that the solubility in a base oil such as mineral oil is excellent, the reactivity to alkali, and the performance as a surfactant are excellent. Satisfyes the required physical properties and has excellent peelability, finish on concrete surface, smoothness, hue etc. Release agent for concrete formwork oil, and a method for producing the same, and a liquid water-repellent substance having one or two OH groups in the liquid water-repellent substance as disclosed in Patent Document 1 (2) Fatty acid or its organic salt and nonionic surfactant are blended, it is excellent in aesthetics and releasability by surface air bubble reduction, saving labor of man-hours required for surface repair and mold cleaning becomes possible, and improvement of quality is also possible. Expected release agents for concrete formwork are occasionally seen.

However, the release agent for concrete formwork oil as shown in the former patent document 1 (1) exhibits excellent peelability, finish of the surface of the concrete, smoothness, hue, etc. As kerosene, light oil, lubricating oil, or a mixture of these is used as a base oil in the case of using it as a raw material, the use of petroleum newly supplied to the market as a raw material becomes indispensable, so the production cost In the latter, the mold release agent for concrete shown in the latter patent document 1 (2) also has the disadvantage that the distribution price of oil may greatly affect the former oil for concrete form oil of the former patent document 1 (1). Similar to the release agent, although it has excellent properties such as peelability and finish of concrete, it uses machine oil, white spindle oil, etc. as its main compounding components, and it is also a raw material. 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. 6-158859 (2) Japanese Patent No. 2951796

(Awareness of problems)
As described above, the release agents for concrete formwork oils that have been proposed up to now use refined new oils in the case of oil-based ones, so the viscosity is high, and the mixing amount of the surfactant component is naturally limited. The oil component tends to separate from other components when left to stand overnight after being diluted for spray, for example, because it is poor in emulsion stability, and can not be used as it is. In addition to the disadvantages, since any concrete formwork oil release agent etc. will use the refined new oil product sold to the market as the main component, it is not possible to rely on the oil product newly supplied to the market In the situation where it is necessary to always produce under the influence of crude oil price and crude oil supply amount, in view of these circumstances, the applicant is equivalent to an oil-based one while being aqueous. It is possible to demonstrate further peeling performance, greatly improve the quality and appearance of the finished concrete surface, and significantly improve the efficiency of the release agent coating operation, mold release operation, mold cleaning operation, etc. We are keenly aware of the need to develop and use an entirely new concrete release agent technology that can be produced and supplied stably and inexpensively, without being affected by changes in the world situation or the market supply of petroleum products, etc. The result is

(Object of the Invention)
Therefore, the present invention enables excellent releasability, significantly improved quality of finished concrete surface, and recycle of petroleum resources, and is kind to the natural environment, inexpensive and not affected by crude oil supply price. From the judgment whether it is impossible to develop a new concrete exfoliation technology that enables stable supply, we started its development and research as quickly as possible, and as a result of repeating trial and error over a long period of time and many trials and experiments, Finally, a new stock removal agent solution, a new concrete release agent using it, a method for producing the new release agent stock solution, and a new production method for the concrete release agent have been successfully realized. In the following, the configuration will be described in detail along with an embodiment representative of the present invention shown in the drawings.

(Structure of the Invention)
As clearly understood from the representative examples of the present invention shown in the drawings, the remover stock solution for concrete remover of the present invention basically has the following constitution.
That is, 4% by weight of high acid value wax (A), 1.5% by weight of oil improver (B), 4 to 5% by weight of emulsifier (C), electrically insulating oil (D) The stripping agent stock solution according to the present invention is characterized in that the composition is mixed at a ratio of 90.5 to 89.5 volume / volume%.

    The release agent stock solution for concrete release agent having this basic constitution is, if it is shown more specifically, 50% to 60% of maleated wax as high acid value wax (A) and 40% of paraffin wax 4% by weight of a 50% mixture, 1.5% by weight of condensed hydroxy fatty acid and its ester as oil improver (B) and 4 to 5% by weight of nonionic surfactant as emulsifier (C) Peeling for concrete release agent comprising volume percentage and waste electrical insulating oil (D) as electrical insulating oil (D) mixed at a ratio of 90.5 to 89.5 volume / volume% It becomes an agent stock solution.

    More specifically, 4 wt / vol% of a mixture of 50% to 60% of maleated wax and 40% to 50% of paraffin wax as high acid value wax (A), neutralization as oil improver (B) Condensed hydroxy fatty acid having a valence of 29 to 33 and its ester at 1.5% by weight / vol.%, Nonionic surfactant as emulsifier (C) at 4 to 5% by weight / vol.%, And waste as electrical insulating oil (D) It becomes the stripping agent undiluted | stock solution for concrete stripping agents which comprises an electric-insulation oil mixed by a ratio of 90.5 to 89.5 volume / volume%.

(Related Invention 1)
The present invention also relates to the above-described release agent stock solution, and also includes a concrete release agent using the release agent stock solution.
That is, with respect to the release agent stock solution as a basis of the present invention described in any one of the above, water as a dilution solvent has a mixing ratio of the volume of the dilution solvent to the volume of the release agent stock solution of 1: 2 to 1 The concrete release agent according to any one of the above 1 to 10, which is mixed so as to be any one of 10: 10.

    The concrete release agent according to the present invention is, more specifically, shown in any one of the above-mentioned release agent stock solutions which are the basis of the present invention, water as a dilution solvent is the volume of the release agent stock solution. The stripping solution stock solution according to any one of the above-mentioned inventions according to any one of the above-mentioned, wherein the mixing ratio of the volume of the dilution solvent to the mixture is one of 1: 2 to 1: 8. Concrete release agent.

    In other words, the solvent for dilution of the mixture of water and alcohol with respect to the release agent stock solution based on the present invention described in any one of the above-mentioned, the mixing ratio of the volume of the dilution solvent to the volume of the release agent stock solution. And the mixing amount of the alcohol is 5% of the total of the stripping agent stock solution and dilution solvent mixture, It can be set as a concrete exfoliation agent using exfoliation agent undiluted | stock solution which is based on this invention of 1 description.

    In other words, the solvent for dilution of a mixture of water and alcohol with respect to the release agent stock solution of the present invention described in any one of the above-mentioned ones is the volume of the dilution solvent relative to the volume of the release agent stock solution The mixing ratio is 1: 2 to 1: 6, and the mixing amount of the alcohol is 15% of the entire stripping agent stock solution / diluting solvent mixture, and it is intended for the below-freezing point In addition, it is possible to use as the concrete exfoliation agent which utilizes the exfoliation stock solution which forms the basis of this invention of statement in either one of the above-mentioned ones.

(Related Invention 2)
In relation to the above-described release agent stock solution, the present invention also includes a method for producing the release agent stock solution.
That is, 4 wt / vol% of high acid value wax (A), 1.5 wt / vol% of oil improver (B), and a partial appropriate amount of the total mixing volume of electrical insulating oil (D) are mixed Together with heating to 70 ° C. to 95 ° C. to obtain a main agent mixture (E), the heat of the main agent mixture (E) is released to 40 ° C., and an emulsifier for the main agent mixture (E) is obtained. (C) is mixed with 4 to 5% by weight / volume to obtain a main agent mixed emulsion (F), and a mixture of the electrical insulating oil (D) heated to 40 ° C. with respect to the main agent mixed emulsion (F) It is a manufacturing method of the exfoliation agent undiluted | stock solution in any one of the said any 1 that it was made to mix the remainder whole quantity among whole quantity.

(Related Invention 3)
The present invention relates to the above-described release agent stock solution and a concrete release agent using the same, and the present invention also includes a method for producing a concrete release agent using the release agent stock solution.
That is, the diluting solvent heated to 70 ° C. to 95 ° C. is gradually mixed in a ratio of 1: 1 with the stripping agent stock solution described in any one of the above to obtain a stock solution for preparing stripping agent dilution, and used The volume of the release agent stock solution contained in the stock solution for preparation for dilution of the release agent is 1 with water as a dilution solvent for dilution from 0 ° C. to normal temperature with respect to the stock solution for preparation of preparation for dilution release just before It is a manufacturing method of the concrete release agent using the release agent undiluted | stock solution in any one of the said any ones which were mixed so that the volume of the solvent for dilution might be a volume ratio any one of 2 thru | or 8.

    More specifically, hot water as a dilution solvent heated to 70 ° C. to 95 ° C. is gradually mixed in a ratio of 1: 1 with the release agent stock solution described in any one of the above to prepare the release agent dilution. The stock solution for preparation of the release agent for dilution preparation is contained in the stock solution for preparation of the release agent for preparation of dilution solution for preparation of dilution agent for preparation of dilution solution for preparation of dilution agent, just before use. The stripping agent stock solution according to any one of the above, wherein the stock of the stripping agent stock solution is a mixture such that the volume ratio of the solvent for dilution is 1 to 2 with respect to the volume of 1 of the stripping agent stock solution. It becomes the manufacturing method of the concrete exfoliation agent used.

    As described above, according to the stripping agent stock solution for concrete stripping agent of the present invention, unlike the conventional ones, it is aqueous by diluting it with a dilution solvent from the inherent characteristic constitution as described above. However, it is possible to achieve the same peeling effect as oil-based concrete peeling agent, and because it is water-based, no stains or stains occur than oil-based ones, and a beautiful concrete finish can be obtained, Since the raw material contains an electrical insulating oil (D), the flowability and the emulsion stability are particularly excellent, and further, a concrete release agent obtained by diluting the release agent stock solution with a dilution solvent. Since the emulsified state can be maintained over a longer period of time than conventional products, it is excellent in handling workability and is suitable for concrete molding such as coating and spraying. The coating workability to the frame is extremely excellent, the concrete molding surface is finished white, no air bubbles are generated easily, the mold release workability is good, and the scale (scrubs) hardly remains in the mold. In particular, those that effectively use waste electrical insulating oil (D), which is disposed by power companies etc., as raw materials greatly reduce industrial waste emissions, and it is necessary to procure petroleum products distributed in the market It is possible to receive stable supply without being affected by crude oil price, and to be able to produce with stable supply, not only to improve the performance of concrete release agent, be kind to the natural environment, and to be remarkable. It can be economically produced, and in the case of conventional products, after applying to a concrete form, it takes some time to dry it and it can not obtain sufficient mold release effect. , 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 in which water as a dilution solvent is mixed with the release agent stock solution so that the mixing ratio of the volume of the dilution solvent to the volume of the release agent stock solution is 1: 2 to 1: 8. The release agent exhibits excellent release performance, and in particular, the dilution solvent for the mixture of water and alcohol has a mixing ratio of the volume of the dilution solvent to the volume of the release agent stock solution of 1: 2 to 1: 6. A concrete release agent which is mixed so as to be the same as one another and in which the mixing amount of the alcohol is 5% of the entire mixture of release agent stock solution and dilution solvent is used as a concrete release agent for spring, summer and autumn. While achieving further excellent emulsion stability, adhesion of concrete to the mold can be almost completely eliminated, and further, the mixing amount of the alcohol is 15% of the entire mixture of the stripping solution stock solution and the dilution solvent Can be manufactured more economically by suppressing the mixing amount of alcohol compared with the one in which the mixing amount of alcohol exceeds 15% by using a concrete exfoliation agent that is intended to correspond to the freezing point Even under sub-freezing conditions, the concrete exfoliation performance will be outstanding.

    And, 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, and further, the application for a while has elapsed After that, since a hydrophobic wax effect is also obtained, an even more excellent mold release effect is exhibited, and the oiliness improver (B) has a peeling effect equal to or more than oil, in synergy with the high acid value wax (A), Furthermore, the rust prevention effect is obtained, and the use of the oiliness improver (B) having a neutralization number of 29 to 33 makes the formation of the metal soap film more effective, and in particular, the dilution solvent is a mixture of water and alcohol. In the liquid form, it can be economically manufactured by suppressing the amount of alcohol used, and succeeds in completing an aqueous release agent which does not freeze even in the winter freezing point, which is not available in conventional products, Fear changes in temperature throughout Anyway, it is possible to carry out concrete molding and mold release work, and furthermore, after applying to a concrete form, if the concrete release agent is dry, high magnification (for example, 1: 2 to 1:10 It is possible to obtain a special effect that excellent exfoliation effect can be obtained even if it is diluted to any one).

    In addition, according to the method for producing the undiluted agent of the present invention, as compared with the conventional method for producing concrete exfoliant, it is possible to produce remarkably remarkably easily, and the production cost can be achieved only by appropriately controlling the temperature in the production process. According to the method for producing concrete release agent of the present invention, the volume ratio of the release agent stock solution is 1 to 2 and the volume ratio of 2 to 8 as spring-summer-fall type by the method of producing concrete release agent according to the present invention. By mixing the solvent for the solvent and mixing the solvent for dilution so as to have a volume ratio of 2 to 6 as a winter type, the emulsion of the present invention is outstandingly superior to that of the conventional product. Stability is obtained, and the emulsion state can be maintained simply and over a long period of time without any special management even under various management conditions in a concrete plant or a concrete placing site. It features is obtained that can, can be reduced more economic burden.

In the practice of the present invention having the constitution as described above, the description will be added on its best or desirable mode.
(Release agent stock solution and its manufacturing method)
The release agent stock solution has the function of being a component of the stock solution for dilution agent preparation, and constitutes the most important component of the concrete release agent of the present invention, and the high acid value wax (A) is 4% by weight / volume% Oiliness improver (B) at a ratio of 1.5% w / v, emulsifier (C) at 4 to 5% w / v and electrical insulating oil (D) at a ratio of 90.5 to 89.5% v / v It should be mixed, and it should be produced in a well-controlled environment such as dust control, temperature control, ventilation, etc., such as a factory.

    The method for producing the release agent stock solution comprises 4% by weight of high acid value wax (A), 1.5% by weight of oil improver (B), 4 to 5% by weight of emulsifier (C) and The electrical insulating oil (D) should be mixed as homogeneously as possible 90.5 to 89.5% by volume / vol., And produced more homogeneously and efficiently as shown in the examples described later. 4% w / v of high acid value wax (A), 1.5 w / v% of oil improver (B), and partially mixed with the total amount of electrical insulating oil (D) The mixture is heated and dissolved to 70 ° C. to 95 ° C. to obtain a main agent mixture (E), and then the main agent mixture (E) is dissipated to 40 ° C., and the main agent mixture (E) Emulsifier (C) is mixed at 4 to 5% w / v to make a main agent mixed emulsion (F), and the main agent mixed emulsification Relative to (F), it is desirable so as to mix the rest total amount in the mixture total amount of the electrical insulating oil heated to 40 ℃ (D).

    An appropriate amount of the total amount of the electrical insulating oil (D) mixed is the main agent mixture (E) heated to 70 ° C. to 95 ° C. in the initial stage of the production process of the release agent stock solution and the emulsifier (C) in the next step. In order to increase the number of steps required to dissipate heat to 40 ° C. and to improve efficiency through energy saving, the emulsifier (C) can be mixed efficiently with the main agent mixture (E). The amount of the electrically insulating oil (D) or slightly larger amount may be said, and as shown in the examples described later, 1/10 to 1/1 of the total amount of the electrically insulating oil (D) mixed. It is desirable to mix a suitable amount of a part which is any one of 2. It is desirable that the entire balance of the total mixture of electrical insulating oil (D) is the balance.

    The main agent mixture (E) is manufactured in the step before the addition of the emulsifier (C) in the process of producing the release agent stock solution, and the high acid value wax (A), the oil improver (B) and the electrical insulating oil An efficient and uniform mixture of (D), 4% by weight of high acid value wax (A), 1.5% by weight of oil improver (B), and electrically insulating oil An intermediate product obtained by mixing and heating a part of the total amount of the mixture of (D) to a temperature of 70 ° C. to 95 ° C., which is an intermediate product, to the main agent mixture (E) On the other hand, the emulsifier (C) is mixed at 4 to 5% w / v to give another emulsified intermediate product, ie, a main agent mixed emulsion (F), to the main agent mixed emulsion (F) In such a way as to mix the entire remaining portion of the total mixed amount of the electrical insulating oil (D) heated to 40 ° C. It is possible to obtain the underlying release agent stock solution bright.

    The high acid number wax (A) is responsible for enhancing the release performance of the concrete release agent, and the release agent stock solution and the main agent mixture emulsion (F) as its intermediate product, and the main agent mixture (E) It is one of the raw materials, and it can be said to be a wax that is light and odorless, has good pigment dispersibility, particularly good carbon dispersibility, and has a low melt viscosity, and has a melting point of 65 to 71 ° C and a specific gravity of about 0.8, acid value The high acid number wax (A) of 69 to 99 mg KOH / g should be contained in the release agent stock solution in an amount of 3% by weight to 5% by weight, preferably 4% by weight, And a mixture of 50% to 60% of paraffin wax and 40% to 50% of paraffin wax, and MP-WAX H-10 (manufactured by Chukyo Yushi Co., Ltd.), or this as shown in the examples described later Same as It is good for the goods.

    The oiliness improver (B) has the function of further enhancing the performance of the concrete release agent to reduce the friction between the mold and the concrete surface, and specifically, high oil content such as vegetable oil, such as castor oil It is desirable to share the function of enhancing the peeling function by making good use of it, and to use condensed hydroxy fatty acids and esters thereof, preferably in an amount of 0.5 to 5% by weight / volume, preferably in a stripping solution stock solution. It should be contained at 1.5% w / v%, and if it is more than 1.5% w / v, the emulsification becomes worse and at least the emulsification becomes worse than 1.5% w / v. It is good to have Minerasol R-335 (made by Ito Oil Co., Ltd.) or the equivalent as it has, and it also shows in the Example mentioned later.

    The emulsifier (C) has the function of emulsifying the oil component contained in the concrete release agent to enable the oil component to be homogeneously dispersed, and more specifically, it is produced during the process of producing the release agent stock solution It has a function to be added to the main agent mixture (E) to change the main agent mixture (E) to the main agent mixed emulsion (F), and more specifically, it should be a surfactant. And may be at least one of polyoxyethylene alkyl ether and polyoxyethylene alkyl phenol ether, and HLB = 10 to 11 is appropriate, and 2% by weight / volume to 6% by weight in the stripping solution stock solution , Desirably 4 to 5% w / v%, and mixed with the main agent mixture (E) or the main agent mixed emulsion (F) in the process of producing the release agent stock solution In addition, the temperature of the main agent mixture (E) or the main agent mixed emulsion (F) and the emulsifier (C) itself is set to about 40 ° C. or 40 ° C. or less which does not inhibit the emulsion stability. It is desirable to set, and although shown also in the examples described later, it is preferable to use a nonionic surfactant (manufactured by NOF Corporation) with a specific gravity of 1.04 or an equivalent thereof.

    Electric insulating oil (D) has the function of improving the peeling performance of concrete release agent and the emulsion stability of the release agent stock solution, and may be referred to as fats and oils having properties that can be used for electric insulating oil (D). It should be able to use an industrial oil that has low viscosity, high flash point, low freezing point, electrical and chemical stability, is excellent in thermal stability and oxidation stability, and has low oil viscosity, The property of low pour point should be satisfied, and it is desirable to use at least one of mineral oil, synthetic oil, and mixed oil of mineral oil and synthetic oil, and more specifically, for example, Insulating oil widely used in highly refined oil with no additive added, silicon synthetic oil, mixed oil of alkybenzene and mineral oil, and electrical equipment such as transformers, capacitors, cables etc. (D) As shown in the examples to be described later, at least one of or equivalent to at least one of Class A 1 to Class 7, Class B Class 1 IEC to Class 6 IEC of Japanese Industrial Standard JIS C 2320 electric insulating oil (D) It is desirable that the product be used as a product, and it should be discharged as industrial waste from a power company etc. in consideration of the protection of the natural environment and economy, and must be properly managed, disposed of or reclaimed, waste transformer oil, waste condenser oil It is good to use waste electrical insulating oil (D) represented by

    After the main agent mixture (E) is obtained in the middle of the step of producing the release agent stock solution, the main agent mixture emulsion (F) dissipates the main agent mixture (E) to 40 ° C., and the main agent mixture Emulsifier (C) is mixed with 4 to 5% by weight / vol.% Of (E), and the remaining whole portion of the total mixing amount of the electrical insulating oil (D) heated to 40 ° C. is mixed It can be said that it is an intermediate product up to the previous step, and the entire remaining part of the mixed total of electrical insulating oil (D) heated to 40 ° C. is mixed with the intermediate product at about 40 ° C. Thus, it is possible to obtain a release agent stock solution which is the basis of the present invention.

(Concrete release agent, and its manufacturing method)
The concrete release agent is obtained by diluting the release agent stock solution to a concentration that facilitates coating by spraying, coating, etc. on a concrete molding frame, and the dilution solvent is used for the release agent stock solution with respect to the release agent stock solution. The mixing ratio of the volume of the dilution solvent to the volume must be such that the volume ratio is 1: 2 to 1:10, and the release agent should be made as small as possible of the dilution solvent. The stock solution is diluted, and the mixed state of the stripping solution stock solution and the dilution solvent can be maintained in an extremely stable state for a long period of time, and in places where facilities such as concrete formwork installation sites outside the plant are not well prepared. Even if it is diluted to a concentration that can be mixed easily and uniformly to a concentration that can sufficiently enhance the workability of spraying, coating, etc., via an undiluted preparation solution for dilution agent which is an intermediate product Water can be used as a dilution solvent for the release agent stock solution, as shown in the examples described later. The solvent may be mixed so that the mixing ratio of the volume is one of 1: 2 to 1: 8, and the solvent for dilution of the water and alcohol mixture is the stripping solution stock solution. While mixing so that the volume ratio of any one of 1: 2 to 1: 6 is obtained, and the mixing amount of the alcohol becomes 5% of the entire stripping agent stock solution / dilution solvent mixture, for spring, summer and autumn If the mixing amount of the alcohol is less than 5% of the total of the stripping agent stock solution and dilution solvent mixture, it is possible to obtain particularly excellent emulsion stability by mixing the alcohol. Difficult, alcohol exceeds 5% Those engaged, 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%. In addition, the mixing amount of the alcohol is 15% of the entire stripping agent stock solution / diluting solvent mixture, which can be used for the below-freezing point, and the alcohol may be methanol (industrial alcohol, etc. It is preferable to use methanol if the cost and the emulsion stability are compared by using at least one of melting point-97.6 ° C) or ethanol (melting point-114 ° C).

    In the method of producing a concrete release agent, a solvent for dilution and a mixture ratio of the volume of the solvent for dilution to the volume of the solution for the release agent with respect to the solution for the release agent are any one volume ratio of 1: 2 to 1:10. The solvent for dilution, which is heated to 70 ° C. to 95 ° C. with respect to the release agent stock solution, as shown in the examples described later (release agent stock solution: dilution solvent) The mixture is gradually mixed at a ratio of 1: 1 to obtain a stock solution for preparation for stripping agent dilution, and immediately before use, water at 0 ° C. to normal temperature with respect to the stock solution for dilution agent stocking, or The solvent for dilution of any one of a water / alcohol mixed solution at 0 ° C. to normal temperature is contained in the stock solution for the stripping agent preparation, while the volume of the solvent for dilution is 2 Mix so that the volume ratio in any one of to 10 It is possible to assume that the.

In addition, the concrete release agent production method is, more specifically, as shown in the following, the release agent stock solution is gradually mixed with the dilution solvent heated to 70 ° C. to 95 ° C. at a ratio of 1: 1, and the release agent After obtaining the stock solution for dilution preparation, water immediately before use is contained in the stock solution for dilution agent preparation, as water for dilution at 0 ° C. to normal temperature with respect to the stock solution for dilution agent preparation. The stripping solution stock solution may be mixed such that the volume ratio of the diluting solvent is 1 to 2 and the volume ratio of the dilution solvent is 2 to 8. Besides, the stripping solution stock solution may be mixed with the stripping solution stock solution. Hot water as a dilution solvent heated to 70 ° C. to 95 ° C. was gradually mixed in a ratio of 1: 1 to obtain a stock solution for stripping agent dilution preparation, and for the stripping agent dilution preparation by just before use. For undiluted solutions, water or alcohol at 0 ° C to normal temperature as a dilution solvent The mixed solution is mixed so that the volume of the stripping solution stock solution contained in the stripping solution dilution preparation stock solution is 1 and the volume of the dilution solvent is any one of 2 to 6 in volume ratio It can be done.
In the following, the structure will be described in detail along with an embodiment representative of the present invention shown in the drawings.

The drawings are representative examples embodying the technical concept of the stripping solution stock solution of the present invention, a concrete stripping agent using the same, a method of producing the stripping agent stock solution, and a method of producing the concrete stripping agent. It is shown.
It is a conceptual diagram which shows the initial state of the manufacturing process of stripping agent undiluted | stock solution. It is a conceptual diagram which shows the middle stage of the manufacturing process of stripping agent undiluted | stock solution. It is a conceptual diagram which shows the late state of the manufacturing process of stripping agent undiluted | stock solution. It is a top view shown. It is a conceptual diagram which shows the initial state of the manufacturing process of a concrete exfoliation agent. It is a conceptual diagram which shows the late state of the manufacturing process of a concrete exfoliation agent.

In the case shown in FIGS. 1 to 3, 4% by weight of high acid value wax (A), 1.5% by weight of oil improver (B), and 4 to 5% by weight of emulsifier (C) The method of producing the stock solution for the release agent for concrete release agent which is the basis of the present invention, wherein the composition is mixed at a ratio of 90.5 to 89.5 volume / volume% of electric insulating oil (D) It is a typical example shown sequentially after the procedure.
The release agent stock solution for concrete release agent according to the present invention comprises 50% to 60% of maleated wax and 40% to 50% of paraffin wax of high acid value wax (A) containing 4% by weight / volume% as its raw material It is a mixture, more specifically, MP-WAX H-10 (manufactured by Chukyo Yushi Co., Ltd.) melting point 65 to 71 ° C., specific gravity about 0.8, acid value 69 to 99 mg KOH / g, oiliness improver (B And 1.5% by weight / vol.% Are condensed hydroxy fatty acids and esters thereof, and Minerazole R-335 (manufactured by Ito Oil Co., Ltd.) is used as the electrical insulating oil (D) according to Japanese Industrial Standard JIS C 2320 Electrical insulating oil (D) at least one of A1 to 7 and B1 or IEC6, and discharged as industrial waste from a power company etc. Properly managed and treated, waste electrical insulating oil (D) such as waste transformer oil, and 4 to 5 weight / volume% mixed as emulsifier (C), HLB = 10 to 11 A polyoxyethylene alkyl ether or a polyoxyethylene alkyl phenol ether, which is a so-called surfactant, and has a nonionic surfactant (manufactured by NOF Corporation) with a specific gravity of 1.04.

    As clearly understood from each of FIGS. 1 to 3, the stripping solution stock solution contains 4% by weight of high acid value wax (A) and 1.5% by weight of oil improver (B), Mixed with a part of the mixed total of electrical insulation oil (D) which is 1/10 to 1/2 and heating to 70 ° C to 95 ° C (around 80 ° C) After the main agent mixture (E) is obtained, the main agent mixture (E) is discharged to 40 ° C., and then the emulsifier (C) is mixed with 4 to 5% by weight / volume of the main agent mixture (E), The electrical insulation is heated to 40 ° C. with respect to the main agent mixed emulsion (F) while being sufficiently stirred to obtain a main agent mixed emulsion (F) and maintained at 0 to 40 ° C., preferably 40 ° C. Made by mixing the whole remaining amount which is any one of 9/10 to 1/2 of the total mixing amount of oil (D) To.

    As shown in FIG. 4 and FIG. 5, the stripping solution stock solution produced as described above is heated to 70 ° C. to 95 ° C., preferably 80 ° C., preferably 80 wt. : Diluted solvent was gradually mixed at a ratio of 1: 1 to obtain a stock solution for preparation for stripping agent dilution, and immediately before use, it was 0 ° C to normal temperature with respect to the stock solution for stripping agent dilution preparation. The solvent for dilution of either water or a water / alcohol mixed solution at 0 ° C. to normal temperature is used for the dilution agent to the volume of the release agent stock solution contained in the stock solution for dilution agent preparation is 1. The volume of the solvent may be 2 to 10, preferably 2 to 8, and the most desirable volume ratio is, for example, a 1: 3 volume ratio and mixed with a concrete release agent. Complete.

    When the solvent for dilution is a water / alcohol mixed liquid, the alcohol contained in the water / alcohol mixed liquid is a concrete in consideration of the improvement of the emulsion stability as for spring, summer, autumn, and economy. It is possible to make it about 5% of the whole of the release agent, for example, using methanol (industrial alcohol), and also, in consideration of the antifreeze performance and economics, about the entire concrete release agent It can be 15%, for example, methanol (a commercial alcohol) can be used.

(Operation and effect of Example 1)
The stripping agent stock solution for concrete stripping agent according to the present invention, which has the constitution as described above, has a high acid value wax (A), an oiliness improver (B), and an electrical insulating oil, as shown in FIGS. After preparing the main agent mixture (E) by mixing a part of the total amount of the mixture (D) while heating and dissolving at 70 ° C. to 95 ° C., the main agent mixture (E) is heated to 40 ° C. The mixture is allowed to dissipate heat, and the main agent mixture (E) is mixed with an emulsifying agent (C) to form a main agent mixed emulsion (F), and the temperature of the main agent mixed emulsion (F) is 40 ° C. By mixing the entire remaining portion of the total mixture of the heated electrical insulating oil (D), the main agent mixture (E) can be heated more efficiently to 70 ° C. to 95 ° C., Excellent mixing workability, more homogeneous mixing, and mixing of main agent mixture (F) The stability of the release agent is extremely excellent, and the undiluted release agent solution produced by the above operation does not easily separate the mixed components even when stored for a long period of time, and waste electrical transformer oil etc. as electrical insulating oil (D) Since the electrical insulating oil (D) is used, it is possible to reduce industrial waste and obtain an excellent feature of being able to be manufactured at a lower price.

    The use of the electrical insulating oil (D) can contribute to the reuse and resource saving of waste oil which is an industrial waste, and the electrical insulating oil (D) has a low density and is excellent in fluidity. Depending on the properties, it is possible to incorporate more additives that exert the peeling effect, and since the purity as oil is inferior to that of the purified new oil, when the property as an oil is weakened, when a small amount of surfactant is mixed. Also, the emulsion stability is extremely good, can be diluted to 2 to 10 times with water (3 to 9 times depending on conditions such as temperature), and there is no problem of ignition, and the environmental load is much better than oil-based ones. It is a product with little

    The concrete release agent of the present invention is prepared by gradually mixing the solvent for dilution heated to 70 ° C. to 95 ° C. with the release agent stock solution in the ratio of (release agent stock solution: dilution solvent) = 1: 1, and removing the release agent After obtaining the stock solution for dilution preparation, either immediately after use, the stock solution for dilution agent preparation is either water at 0 ° C. to normal temperature or a water / alcohol mixed liquid at 0 ° C. to normal temperature. One of the dilution solvents is mixed so that the volume of the release agent stock solution contained in the release agent dilution preparation stock solution is 1 and the volume of the dilution solvent is 3. Excellent emulsion stability not obtained in conventional products is obtained, and in conventional products, the dilution solvent in the concrete release agent separates from the release agent stock solution component overnight, and it is stirred each time it is used Although it was necessary, this was eliminated and the said concrete exfoliation agent was The emulsion is maintained in a stable emulsion state even after one week from the preparation, and in particular, when the water-alcohol mixture is used as the dilution solvent, the mixing amount of the alcohol is the release agent stock solution-dilution solvent. The content of 5% of the whole mixed solution can achieve extremely excellent emulsion stability as a concrete release agent for spring, summer and autumn, and the mixing amount of the alcohol is a mixture of a release agent stock solution and a dilution solvent 15% of the total solution becomes an aqueous release agent that does not freeze even in the subzero freezing winter, dramatically improving the workability of winter concrete molding and formwork peeling work, as well as significantly improving the quality of the concrete molding surface It can be enhanced.

As shown in Table 1 and Table 2 below, a concrete release agent with a mixing ratio of 1: 3 of the stock solution of the release agent: dilution solvent was spray-coated on a steel form having dimensions of 400 mm × 400 mm × 60 mm, and the volume ratio was Cement: Sand: Gravel = 1: 2: 3 poured concrete poured in, natural curing (natural curing is more severe conditions because the reaction time between mold release agent and concrete than steam curing, it can be said that more severe conditions) After 72 hours, the experiment of removing the mold, the finish of the product, and the adhesion state to the mold was conducted, and the results of trial manufacture and experiment for each sample of (1) to (10) were as follows. 4 weight / volume% of acid value wax (A), 1.5 weight / volume% of oil improver (B), 4 weight / volume% of emulsifier (C) and 90.5 volume of electric insulating oil (D) Peeling to be mixed at a rate of% by volume It was concluded that the concrete release agent using the stock solution is the best for spring / summer / fall (water for dilution) and winter (water / alcohol mixture for dilution). The

    In the case of the winter-type experiment, in the case of the extremely cold season of midwinter, the pouring room is below freezing point, and even if the fresh concrete is cold resistant, the main focus is on that the aqueous release agent can be used without freezing. It was demolded after 72 hours of natural curing under severe cold conditions, but the same good results were obtained as with the spring, summer, and autumn concrete release agents.

(Result)
As described above, the undiluted release agent solution of the present invention, the concrete exfoliant using it, the method of producing the undiluted agent stock solution, and the method of producing the concrete exfoliant can achieve the intended purpose uniformly by their novel constitution. Compared to traditional concrete release agent technology, it greatly streamlines the series of operations such as concrete molding and use of concrete formwork, mold release, maintenance and storage, and The quality of the concrete molding surface is greatly improved, and industrial wastes of fat and oil are effectively used to reduce the environmental load, and the concrete stripping agent and the concrete molding cost using it are significantly reduced, and far Until now, the quality of the finished concrete surface, especially the effects of winter climate and temperature, can be made economical. In addition to the concrete industry and construction industry that have attempted to improve various technologies, such as mold release workability after concrete molding, as well as general consumers who want to provide low-cost, high-quality concrete molding technology. It is also highly valued by companies and organizations, and is expected to be widely used and disseminated.

High acid number 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 (11)

    4% by weight of high acid value wax (A), 1.5% by weight of oil improver (B), 4 to 5% by weight of emulsifier (C) and 90% of electrically insulating oil (D) A stripping agent stock solution for concrete stripping agent, which is mixed at a ratio of 5 to 89.5 volume / volume%.     4% by weight of a mixture of 50% to 60% of maleated wax and 40% to 50% of paraffin wax as high acid value wax (A), condensed hydroxy fatty acid and its ester as oil improver (B) 1 .5 wt / vol%, 4 to 5 wt / vol% of nonionic surfactant as emulsifier (C), and 90.5 to 89.5 vol / vol of waste electrical insulating oil as electrical insulating oil (D) A stripping agent stock solution for concrete stripping agent, which is to be mixed at a ratio of 10%.     A mixture of 50% to 60% of maleated wax and 40% to 50% of paraffin wax as high acid value wax (A) is 4% by weight / vol.%, And a condensation value of neutralization number 29 to 33 as oil improver (B) Hydroxy fatty acid and its ester 1.5% by weight / vol.%, Nonionic surfactant as emulsifier (C) 4 to 5% by weight / vol.%, And waste electrical insulating oil as electric insulating oil (D) 90.5 A stripping agent stock solution for concrete stripping agent, characterized in that it is mixed at a ratio of 89.5 vol / vol%.     The release agent stock solution according to any one of claims 1 to 3, wherein water as a dilution solvent has a mixing ratio of the volume of the dilution solvent to the volume of the release agent stock solution of 1: 2 to 1:10. The concrete stripping agent using the stripping agent undiluted | stock solution in any one of the said 1 thru | or 3 which was mixed so that it may become one.     The release agent stock solution according to any one of claims 1 to 3, wherein water as a dilution solvent has a mixing ratio of the volume of the dilution solvent to the volume of the release agent stock solution in any of 1: 2 to 1: 8. The concrete stripping agent using the stripping agent undiluted | stock solution in any one of the said 1 thru | or 3 which was mixed so that it may become one.     The stripping solution stock solution according to any one of claims 1 to 3, wherein the dilution solvent for mixing water and alcohol has a mixing ratio of the volume of the dilution solvent to the volume of the stripping agent stock solution of 1: 2 to 1: 6. The stripping solution stock solution according to any one of claims 1 to 3, wherein the mixing amount of the alcohol is 5% of the total of the stripping agent stock solution and dilution solvent mixed solution. Concrete release agent used.     The stripping solution stock solution according to any one of claims 1 to 3, wherein the dilution solvent for mixing water and alcohol has a mixing ratio of the volume of the dilution solvent to the volume of the stripping agent stock solution of 1: 2 to 1: 6. 4. The composition according to any one of claims 1 to 3, wherein the alcohol is mixed so as to be any one, and the mixing amount of the alcohol is 15% of the entire stripping agent stock solution / diluting solvent mixture, and is intended for subzero temperature. Concrete release agent using release agent undiluted | stock solution of 1 description.     4 wt / vol% of high acid value wax (A), 1.5 wt / vol% of oil improver (B), and a suitable amount of the total mixing volume of electrical insulating oil (D) while mixing After heating and dissolving to 70 ° C. to 95 ° C. to obtain the main agent mixture (E), the main agent mixture (E) is dissipated to 40 ° C. and an emulsifier (C) is added to the main agent mixture (E). 4) to 5% by weight / vol.% To make the main agent mixed emulsion (F), and the total mixed amount of the electrical insulating oil (D) heated to 40 ° C. with respect to the main agent mixed emulsion (F) The method for producing a stripping agent stock solution according to any one of claims 1 to 3, wherein the whole of the remainder is mixed.     A solvent for dilution heated to 70 ° C. to 95 ° C. was gradually mixed with the release agent stock solution according to any one of claims 1 to 3 at a ratio of 1: 1 to obtain a source solution for preparation for release agent dilution. Above, until just before use, either the water as a dilution solvent for dilution from 0 ° C. to normal temperature or the water / alcohol mixed solution with respect to the stock solution for dilution agent preparation is the dilution agent dilution preparation. 4. The method according to any one of claims 1 to 3, wherein the stripping solution stock solution contained in the stock solution is mixed such that the volume ratio of the dilution solvent is 1 to 2 relative to 1 volume of the stripping solution stock solution. The manufacturing method of the concrete release agent using the release agent undiluted | stock solution in any one statement.     A solvent for dilution heated to 70 ° C. to 95 ° C. was gradually mixed with the release agent stock solution according to any one of claims 1 to 3 at a ratio of 1: 1 to obtain a source solution for preparation for release agent dilution. Above, just before use, the volume of the release agent stock solution contained in the stock solution for the release agent dilution preparation is 1 as a dilution solvent for dilution preparation from 0 ° C. to normal temperature with respect to the stock solution for the release agent dilution preparation. The concrete remover using the stock remover solution 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. The stripping solution stock solution according to any one of claims 1 to 3 is gradually mixed with hot water as a dilution solvent heated to 70 ° C to 95 ° C at a ratio of 1: 1 to prepare a stripping solution dilution preparation stock solution. Of the stock solution for preparing the stripping agent for preparing the stripping agent, and the water / alcohol mixed solution of 0 ° C. to normal temperature as a solvent for dilution contained in the stock solution for preparing the stripping agent. The release agent according to any one of claims 1 to 3, wherein the mixture is mixed so that the volume ratio of the agent stock solution is 1 and the volume ratio of the dilution solvent is any one of 2 to 6. A method of producing a concrete release agent using a stock solution.

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