MXPA99007124A

MXPA99007124A - Coating material for radiation surfaces to produce electromagnetic waves and a method for manufacturing said material

Info

Publication number: MXPA99007124A
Application number: MXPA/A/1999/007124A
Authority: MX
Inventors: Reichelt Helmut
Original assignee: Reichelt Helmut Dr 01069 Dresden De
Priority date: 1997-04-28
Filing date: 1999-08-02
Publication date: 2000-05-01

Abstract

The invention relates to a coating material for radiation surfaces to produce electromagnetic waves and a method for manufacturing of said material. The coating material consists of a bonding agent, an insulating agent, a dispersing agent, water and graphite which are mixed together. According to the invention, the coating material is made up of a 55 to 60%mole fraction of a base substance consisting of a bonding agent, insulating agent, dispersing agent and distilled water in addition to a 35 to 40%mole fraction of graphite. The bonding agent consists of distilled water, sulfated oil, phenolene or benzisothiazolinone, casein, urea, alkali diluent and caprolactam. According to the inventive method which is designed to produce said coating material, a bonding agent is produced in a first step. In a second step, the base substance is produced. In a third step, the base substance is mixed with the graphite. This results in a coating material with a plurality of dipoles which are formed by the graphite, the insulating agent and the bonding agent. Electromagnetic waves with a high degree of radiation are obtained in a state of excitation.

Description

COATING MATERIALS FOR AREAS OF IRRADIATION INTENDED FOR THE GENERATION OF WAVES ELECTROMAGNETIC, AND PROCEDURE FOR PREPARATION The invention relates to coating materials for irradiation areas intended for the generation of electromagnetic waves, according to the preamble of claim 1, and also relates to a process for the preparation of said coating material, according to the preamble of the invention. Claim 9. The coating materials of this type are applied to irradiation areas of radiant sources that are used in the energy technology, especially in the refrigeration and air-conditioning technology. The electromagnetic waves generated by the irradiation source in cooperation with the coating material serve, for example, for cooling and heating a material that has been placed in the irradiation field of the radiation source. Document DD-208 029 already discloses a coating material for the irradiation areas intended for the generation of electromagnetic waves, as well as a process for the preparation of said coating materials. The coating material is a mixture of binding agents, insulating agents, dispersing agents, water and graphite. As the binding agent, a polyvinyl acetate and / or a polyacrylate and / or a polypeptide are used, while an insulating soot is used as an insulating agent. The graphite, soot and bonding agent form electrical dipoles in the coating material, which dipoles, in the excited state, emit electromagnetic waves. The process for the preparation of this coating material essentially involves the mixing of these substances by means of a stirring device and the application of pressure for the comminution of the soot and graphite particles. Said document merely provides global indications about the fundamental composition of a coating material, of which indications do not reveal any specific composition of the coating material with a good effectiveness as regards the irradiation of electromagnetic waves. Therefore, the object of the present invention is to propose a coating material with a specific composition, by which an effective irradiation of electromagnetic waves is achieved, as well as to make available a method for the preparation of said material. coating. Said object is achieved, as far as the coating material is concerned, thanks to the features of claim 1, and as far as the process for the preparation of a coating material is concerned, thanks to the features of claim 9. According to claim 1, the binder is composed of: - distilled water, in quantities of 64 to 79 percent of the total of the components; - sulfated oil, in quantities of 4 to 6 percent of the total of the components; - phenols, in amounts of 0.16 to 0.24 percent of the total components, or benzisothiazolinone, in an amount of 0.05 to 0.5 percent of the total components; - casein, in quantities of 15 to 19 percent of the total components; - urea, in amounts of 0.8 to 1, 2 percent of the total of the components; - alkaline dilution agents, in quantities of 2 to 3 percent of the total of the components; and - caprolactam, in amounts of 2.5 to 3.5 percent of the total components. The coating material itself is composed of 55 to 65 percent of the total of the components, by a fundamental substance, and from 35 to 45 percent of the total of the components, by graphite, the basic substance consisting of a mixture of to 49 percent of the total components, by binding agents; from 18 to 23 percent of the total of the components, by an insulating agent; from 18 to 24 percent of the total of the components, by dispersing agents; and from 12 to 16 percent of the total of the components, for distilled water. With this composition, the coating material forms a plurality of very small, uniformly distributed electrical dipoles, which are formed by the insulating agent, the graphite and the binding agents. In this case, the binding agents comprise, as a main component, distilled water, which provides the binding agents, depending on the amount added, a consistency that allows at least a viscous runoff. By means of the same it is possible to mix the individual components of the binding agent very well. The sulfated oil and optionally an eluting agent serve as dilution promoters and ensure a uniform and stable distribution of the individual materials in the binding agents, as well as the formation of a good film from the coating material, on a carrier material. Phenols or benzisothiazolinone, contained in the binding agents, already favor, when applied in small quantities, the accumulation of the particles. Casein has to be considered as a binding agent in the binding agents, and ensures the accumulation of the individual components within the binding agents. Urea is also used as a promoter of the dilution in the binding agents, that is, it favors the uniform distribution of the individual components in the binding agents. Additionally, the binding agents contain a diluting agent that serves for homogenization, such as caprolactam as a synthetic material. The basic substance includes, as its main component, the binding agents, in which the particles of the insulating agents accumulate as a part of the electric dipole. In this case, the dispersing agents facilitate the dispersion and with it the uniform distribution of the binding agents together with the particles of the insulating agents in the basic substance. The distilled water mixed together with the fundamental substance, serves to confer fluidity to the fundamental substance. The graphite, added within the operation of the mixing of the coating material, also finally accumulates in the form of its individual particles to the binding agents that are already bound to the insulating agents, and forms together with the insulating agents a plurality of very small dipoles electrical, which are evenly distributed in the coating material. Already in a ground state, the graphite can be added with a very fine granulometry. In this way, a uniform distribution of the graphite in the coating material is favored and, in addition, the configuration of a plurality of electrical dipoles. In this way, thanks to this coating material a high degree of irradiation is achieved in terms of the generation and emission of electromagnetic radiation. An irradiation area coated with such a coating material, when subjected to a high-frequency excitation, irradiates an electromagnetic radiation with a corresponding high frequency. For this purpose it is preferable that the coating material has a consistency after its preparation that allows it to have a viscous flow and that it is applicable by brush, which is dried after being applied as a coating to the irradiation area, it being preferable that this in order to obtain a continuous surface free of cracks. As the sulfated oil, for example, sulphated olive oil, sulfated sesame oil or sulfated palm oil can be used. If, however, and in accordance with claim 2, it is preferable that the sulphurated oil is sulfated castor oil, known as sulforicinoleate as turkish red oil. Said sulfated castor oil is very suitable due especially to its surfactant properties. It is preferable, according to claim 3, that the phenols are carbonized phenols obtained by cracking, which have a special aptitude for the accumulation of particles. Instead of the phenols, benzisothiazolinone can be used preferably. According to claim 4, the dilution agent is an aromatic base and / or alcoholic and / or ester based and / or ketone base solvent, for example, terpene. As insulating agents, a variety of known insulators can be used. However, and in accordance with claim 5, it is preferable that the insulating agent is an insulating carbon black. Said carbon black is preferably added already in milled form, its particles having a very fine granulometry. This promotes a uniform distribution of the carbon black in the basic substance and therefore together the configuration of a plurality of electrical dipoles in the coating material. According to claim 6, the dispersing agent promoting the dispersion and hence the uniform distribution of the binder together with the particles of the insulating agent in the ground substance, is a monomeric and / or polymeric organic substance. According to claim 7, in a preferred embodiment the coating material contains a thixotropic agent. Said thixotropic agent has the effect that the coating material has a thick fluid consistency, that is to say it can be easily applied over an area of irradiation by brush, but that in the state of rest is so viscous that no drops can form on the surface no tears. In this way it is possible to apply the coating material over an irradiation area, following the contours thereof. In a preferred embodiment, the coating material is applied according to claim 8, on an irradiation area of a radiation source, which can radiate electromagnetic radiation with a frequency that is located in the order of magnitude of the molecular frequency of an intraducible material in the field of irradiation of the radiant source, for its heating or cooling. Said radiant source is configured with a large area and is delimited by two flows or pipes, arranged parallel to each other, and separated from one another by a distance corresponding to an integral multiple of the wavelength irradiated by the radiation source. By means of said radiation source, a frequency can be obtained in the environment of the molecular frequency of the material to be heated, or to be cooled, as well as a corresponding frequency suitable for a fluid or gasiform medium additionally disposed in the space. This means that this medium can also be used in the process of changing the temperature. Due to the interaction between the radiation source and the material to be heated or cooled in the environment of the resonance frequency thereof with the own molecular frequencies, a greater degree of effectiveness is achieved. In this case, the coating material according to the present invention, with its plurality of dipoles, contributes to making available a system of irradiation, otherwise effective, of electromagnetic waves, with a high degree of irradiation. According to claim 9, in a first step of the process, for the preparation of the binding agent, they are mixed together: - distilled water, in quantities of 64 to 79 percent of the total of the components; - sulfated oil, in quantities of 4 to 6 percent of the total of the components; - phenols, in amounts of 0.16 to 0.24 percent of the total components, or benzisothiazolinone, in quantities of 0.05 to 0.5 percent of the total components; - casein, in quantities of 15 to 19 percent of the total components; - urea, in amounts of 0.8 to 1, 2 percent of the total of the components; - alkaline dilution agents, in quantities of 2 to 3 percent of the total of the components; and - caprolactam, in amounts of 2.5 to 3.5 percent of the total components. In a second step of the process, in order to prepare a fundamental substance, the following are mixed together: - from 39 to 49 percent of the total of the components, of the binder agent prepared in the first step of the process; - from 18 to 23 percent of the total components, of the insulating agent; - from 18 to 24 percent of the total components, of the dispersing agent; and - from 12 to 16 percent of the total components, of distilled water. Then proceed to mix together, in a third step of the procedure for the preparation of the coating material, from 55 to 65 percent of the total of the components, of this fundamental substance, and from 35 to 45 percent of the total of the graphite components, the insulating agent, the graphite and the binding agent forming a plurality of electric dipoles for the emission of electromagnetic waves. The substances are mixed in the individual steps of the process, by means of mixing and / or kneading tools, for example, in snail-type mixers, roller mixers, centrifugal mixers, which ensure especially intensive intimate mixing. Said mixers also ensure at the same time a comminution of the added particles, in particular of the particles of the insulating agent added in the second step of the process, and of the particles of the graphite added in the third step of the process. Thus, said particles will be fine and in particular, they will also be uniformly distributed in the coating material and will configure a plurality of very small electric dipoles for the generation of electromagnetic waves with a high degree of irradiation. In this way it is possible to prepare the coating material in a simple and therefore economical manner. In a preferred embodiment, according to claim 10, of the process for the preparation, sulfated castor oil, which is especially suitable due to its surface-active properties, is preferably used as the sulphated oil in the binder. As phenols in the binder, carbonized phenols obtained by cracking or benzisothiazolinone are preferably used. On the other hand, solvent-based solvents based on aromatics and / or alcohols and / or esters and / or ketones are used in the binder as the diluting agent. In the basic substance, an insulating carbon black is preferably used as the insulating agent, it being advantageous if it is added in the ground state in the form of very small particles. In this way, the uniform distribution of the carbon black in the ground substance is favored and thus together the configuration of a plurality of electrical dipoles in the coating material. On the other hand, monomeric or polymeric, inorganic and / or organic substances are used as the dispersing agent facilitating the dispersion and thus the uniform distribution of the binder together with the particles of the insulating agent in the basic substance.

According to claim 11, a thixotropic agent is mixed together with the coating material. Said thixotropic agent ensures that the coating material is easily applied by brush over the irradiation area, but that in a state of rest is so viscous that no drops can form on the surface. According to claim 12, the coating material suitable for being applied is applied with a drill bit over an irradiation area of a radiation source by means of a spraying, painting or spatula method and allowed to dry in said area. The amount to be applied is chosen such that a dry layer, for example capable of 60 to 80 microns in thickness, originates. By means of the radiation source it will then be possible to irradiate an electromagnetic radiation with a frequency that is located in the order of magnitude of the molecular frequency of an intraducible material in the field of irradiation of the radiation source, for its heating or cooling . A preferred composition for the coating material is shown below, by means of a specific example: In a first step of the process, a binding agent is prepared by the joint mixing of: - distilled water, in quantities of 71, 4 percent of the total of the components; - sulphated castor oil in quantities of 5.0 percent of the total components; - carbonized phenols obtained by cracking, in a quantity of 0.2% of the total of the components; - casein, in quantities of 16.9 percent of the total components; - urea, in quantities of 1, 0 percent of the total of the components; - dilution agents, in quantities of 2.5 percent of the total of the components; and - caprolactam, in amounts of 3.0 percent of the total of the components. Next, in a second step of the process, a fundamental substance is prepared by the joint mixing of: - 44.2 percent of the total of the components, of the binding agent; - 20.7 percent of the total components, of an insulating carbon black; - 21, 0 percent of the total components, of dispersing agents; and - 14, 1 percent of the total components, of distilled water. Then proceed to mix together, in a third step of the procedure to prepare the coating material, the following: 60 percent of the total of the components, the fundamental substance, and 40 percent of the total components, graphite , as an electron-pi system.

Said coating material was applied to an irradiation area of a radiation source, dried in air, and then the source of radiation was excited. In this case, the measured electromagnetic irradiation showed a high degree of irradiation. For the preparation of the binding agent, the individual components were mixed in a concrete sequence process in a mixer of for example 2000 rpm for 10 to 20 minutes. In the second step of the process, it was also mixed at a rate of, for example, 2000 rpm for 10 to 20 minutes, in which pressures on the basic substance in the order of 6 to 18 MPa could also be applied, which would have the effect of dividing of soot particles up to a size of less than 40 microns. In the third step of the process, the substances were also mixed at for example 2000 rpm for 10 to 20 minutes, in which pressures in the order of magnitude of 6 to 18 MPa on the material could also be applied additionally and at intervals. of coating, the consequence of which is the appearance of cutting forces that favor an extended arrangement of the dipoles in the coating material. Furthermore, for the preferential dispersion of the individual components, the technique of ultra-sound dispersion can be used, which ensures an especially fine distribution of the particles and thus of the dipoles.

Claims

CLAIMS 1.- Coating material for irradiation areas, for the generation of electromagnetic waves, consist of binding agents, insulating agents, dispersion agent, water and graphite, characterized in that the coating material is composed of: a.- of 55 to 65% of the total of the components, of a fundamental substance consisting of:. from 39 to 4% of the total of the components, by binding agents; . from 18 to 23% of the total of the components, by insulating agents; . from 18 to 24% of the total of the components, by dispersing agents; . from 12 to 16% of the total of the components, of distilled water; and b.- from 35 to 45% of the total of the components, by graphite, consisting of the binding agents, of - distilled water, in quantities of 64 to 79 percent of the total of the components; - sulfated oil, in quantities of 4 to 6 percent of the total of the components; - phenols, in quantities of 0.16 to 0.24 percent of the total component, or benzisothiazolinone, in amounts of 0.05 to 0.5 percent of the total components; - casein, in quantities of 15 to 19 percent of the total components; - urea, in amounts of 0.8 to 1, 2 percent of the total of the components; - alkaline dilution agent, in quantities of 2 to 3 percent of the total of the components; and - caprolactam, in quantities of 2.5 to 3.5 percent of the total of the components, forming the isolation agent, graphite and the binding agents, electric dipoles for the emission of electromagnetic waves.
2. Coating material according to claim 1, characterized in that the sulphurated oil is preferably sulfated castor oil.
3. Coating material according to claim 1 or 2, characterized in that the phenols are carbonized phenols obtained by cracking, or preferably benzisothiazolinone.
4. Coating material according to any one of claims 1 to 3, characterized in that the dilution agent is a solvent based on aromatics and / or alcohols and / or esters and / or ketones.
5. Coating material according to any one of claims 1 to 4, characterized in that the insulating agent is an insulating carbon black.
6. Coating material according to any one of claims 1 to 5, characterized in that the dispersing agents are monomeric or polymeric, inorganic and / or organic substances.
7. Coating material according to any one of claims 1 to 6, characterized in that the coating material contains a thixotropic agent.
8. - Coating material according to any one of claims 1 to 7, characterized in that the coating material is applied over an irradiation area of a radiation source in such a way that electromagnetic radiation can be emitted with a frequency located in the order of magnitude of the molecular frequency of a material that can be introduced into the irradiation field of the radiation source for heating or cooling.
9.- Procedure for the preparation of a coating material for irradiation areas for the generation of electromagnetic waves, in which the binding agents, isolation agents, dispersing agents, water and graphite are mixed together, characterized in that in the first step of the process, for the preparation of the binding agents, the following are mixed: - distilled water, in quantities of 64 to 79% of the total of the components; - sulphated oil, in quantities of 4 to 6% of the total of the components; - phenols, in quantities of 0.16 to 0.24% of the total components, or benzisothiazolinone, in amounts of 0.05 to 0.5% of the total components; - Casein, in quantities of 15 to 19% of the total of the components; - urea, in quantities of 0.8 to 1, 2% of the total components; - alkaline dilution agents, in quantities of 2 to 3% of the total of the components; and - caprolactam, in amounts of 2.5 to 3.5% of the total of the components; and in a second step of the process, for the preparation of a fundamental substance, the following are mixed: - from 39 to 49% of the total of the components, of binding agents; - from 18 to 23% of the total components, of insulating agents; - from 18 to 24% of the total of the components, of dispersing agents; and - from 12 to 16% of the total components, of distilled water; and in a third step of the process, for the preparation of the coating material, we proceed to mix each other: from 55 to 65% of the total of the components, of the fundamental substance, and from 35 to 45% of the total of the components , of graphite, configuring the insulating agents, the graphite and the binding agents, electric dipoles for the emission of electromagnetic waves.
10. Process for the preparation of a coating material according to claim 9, characterized in that sulfated castor oil is preferably used in the binder as sulphurated oil, because in the binding agents, as phenols, they preferably use carbonized phenols obtained by cracking, or benzisothiazolinone, because in the binders, solvent based solvents and / or alcohols and / or esters and / or ketones are used as dilution agents, because in the basic substance As insulating agent an insulating carbon black is used, and because in the basic substance, a monomeric and / or polymeric, inorganic and / or organic substance is used as the dispersing agent. 1. Process for the preparation of a coating material according to claim 9 or 10, characterized in that a thixotropic agent is added to the coating material. 12. Process for the preparation of a coating material according to any one of claims 9 to 11, characterized in that after its preparation, the coating material, applicable by brush, is applied over an irradiation area of a radiant source by means of spraying, painting or spatula procedures, and solidifies there after a drying process, irradiating it by means of the electromagnetic irradiation source with a frequency that is located in the order of magnitude of the molecular frequency of a material intraducibie in the field of irradiation of the radiant source, for heating or cooling. R E S U M N N The invention relates to a coating material for irradiation areas for the generation of electromagnetic waves, and also relates to a process for the preparation of said material. The coating material consists of a binder, an insulating agent, a dispersing agent, water and graphite, which are all mixed together. According to the invention, the coating material is composed of 55 to 65% of all the components, by a fundamental substance consisting of binding agent, isolation agent, dispersing agent and distilled water, and from 35 to 45% of all the components, by graphite, the binder consisting of: distilled water, sulfated oil, phenols or benzisothiazolinone, casein, urea, alkaline dilution agent and caprolactam. In the process according to the invention for the preparation of this coating material, in a first step of the process the binder is prepared, then, in a second step of the process, the basic substance is prepared, and subsequently, in a third step. step of the procedure proceeds to mix the fundamental substance with the graphite. This results in a coating material having a plurality of dipoles which are formed by the graphite, the isolation agent and the binding agent, and which in the excited state emit electromagnetic waves with a high degree of irradiation.