JPH11302565A - Coating for coating film power generation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating used for forming coating films for protection and beautiful decoration which are the original use purposes of the coating and further used for obtaining electricity from the coating films. SOLUTION: When different heats are added to both the sides of a joined conductor or semi-conductor comprising different kinds of conductor or semi-conductor members, an electric current called a thermocurrent flows in the circuit. Namely, a thermal power generation called a Seebeck effect is generated. When heat is large, the conductor or semiconductor combined with a synthetic resin allows electricity to easily flow, and when temperature is low, electric resistance is increased, but metals exhibit reverse phenomena. Thereby, the metals are convenient in summer and winter. When the material for the thermoelectric generating coating is used in an amount of 1-50 wt.% based on the solid content of the synthetic resin solution, a proper thermoelectric power is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The paint of the present invention is intended to obtain electricity from a paint film in addition to a paint film for protection and aesthetics which is the purpose of use of the paint.

In the case of an object to be coated such as a metal roof or a metal construction aluminum, a metal can be used as one electrode and can be used as an electrode terminal for taking out electricity. When painting, it is necessary to paint an electrode terminal for extracting electricity with a wire mesh or electric wire in the center of the coating film.

A description will be given of a mechanism of power generation of a paint film. When different heat is applied to both sides of different types of joined conductors or semiconductors, electricity called thermal current flows through the circuit, that is, thermoelectric generation occurs. This is called the Seebeck effect.
In a conductor or semiconductor combined with a synthetic resin, electricity moves slowly when heat is increased, and electric resistance is increased when temperature is low, but the opposite is true for metals, so that it is convenient in summer and winter.

The material of the thermoelectric coating material and the synthetic resin liquid are one-pack resins such as polyethylene and polypropylene, and two-pack resins such as polyisocyanate / polyol and epoxy resin.
Either polyamide or polyester / peroxide can be used. As the material of the thermoelectric coating material, carbon powder, granular carbon powder, short carbon fiber, long carbon fiber, metal powder, magnetic powder, iron carbide powder, and the like can be used. The ratio of the thermoelectric paint material to the solid content of the synthetic resin solution is 1 to
An appropriate thermoelectric power generation with a 50% weight ratio is obtained. The usage rate is
It depends on the type of synthetic resin solution to be used and the type of thermoelectric material to be used. For example, when carbon fiber is used, it is possible even at a small usage ratio. Further, the amount of thermal power generation can be adjusted by increasing or decreasing the usage ratio, and the performance as a predetermined power generator can be maintained.

[0005]

[Industrial applications] Metal structures such as the sides and piers of iron bridges and road bridges, the inside and outside of noise barriers on expressways, building materials, and buildings that are painted using iron or metal are considered as application fields. However, any place where solar heat can be secured in a paintable place with a large area will be able to generate electricity. In addition, special places where cold heat or warm heat is waste heat for some reason are also targeted, for example, waste heat use in hot water drains of nuclear power plants and garbage incineration plants in prefectural towns and villages It is conceivable to use the waste heat of the circulating cooling water that comes out, and to use the waste heat of the hot water drainage ditch at natural hot springs in various places.

[0006]

SUMMARY OF THE INVENTION The problem of realizing power generation in a place that has never been considered before, and power generation in an environment that does not generate industrial waste such as noise or garbage.

[0007] Originally, due to the nature of the paint, it deteriorates steadily after the paint is applied, so that it is necessary to repaint the paint.

The issue of whether a constant output can be obtained for a long time.

Power generation paints are ranked high as dream paints in industry questionnaire surveys, etc., but the problem is whether they can be marketed early.

The present inventor has sought to solve these problems.

[0010]

Means for Solving the Problems The paint of the present invention is applied to absorb solar heat and generate electric power when the temperature difference between the front and back sides increases.

It is always necessary to repaint the paint of the present invention, but if the top coat alone is regularly repainted, a system that can be repaired only for the semi-coated part and the under-coated part of the semiconductor without repainting is required. I would like to work on research to make a design that can withstand use for as long as possible.

[0012] The efficiency of thermoelectric power generation, which is generated by heating or cooling the surface, is slightly lower than that of solar cells. There is an advantage that a constant output can be obtained for a long time.

In the present invention, paint technology has been developed since paints have been used in fields where paints have been conventionally used, that is, the only way to maintain structures and buildings that are the social capital of modern society for a long time is to apply paints. Painting technology has been developed,
As a result, long-term preservation of buildings and buildings has become practically possible. Since paint is regularly applied to the structures and buildings, it is socially necessary to pursue more advanced paint technology and use paint films with many functions. It is a paint that is less polluting and more comfortable for people's lives and helps create an environment.

[0014]

BACKGROUND OF THE INVENTION Paints are used for the purpose of dressing and protection. If any other purpose is given, it is called a functional paint, for example, rust preventive paint, electrical insulating paint, heat-resistant paint, thermal paint, waterproof paint, etc. There were no productive thinking paints, no functional paints with positive active action or purpose.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described based on examples.

[0016]

Example 1 One-part coating power generation paint, 25 parts of Pliolite S-5 manufactured by Goodyear. Tricresyl phthalate
10 parts. 25 parts of acetic ester. 14 parts of toluene. After dissolution with stirring, 15 parts of nichrome powder. Granular carbon powder 10 parts. 1 part of carbon fiber carbon fiber. Was added and mixed and dispersed using a disper to obtain a uniform coating for power generation.

[0017]

Example 2 Two-component reaction-curable coating film Power generation coating material, polyether diol resin, hydroxyl equivalent 100039 parts. 1 part of a 20% lead octate solution. Sacsan ethyl ester 24 parts.
15 parts of phthalsandioctyl ester. After mixing and dissolving,
20 parts of granular acetylene black. Was added and dispersed by a roll mill, and 1 part of milled fiber short fiber was added thereto. The mixture was mixed to produce a uniform coating substrate A liquid. At the time of enforcement, substrate A liquid 10
0 to 10 parts of polyisocyanate containing NCO group
10.721 parts. Add, knead and spread.

[0018]

Example 3 Test pieces were prepared using the paint described in Example 2. The size of the iron plate is 20cm in height, 30cm in width, 0.2mm in thickness.
5 cm, width of about 16 cm, first film thickness of about 3 mm, a thin copper net on top of the second about 2 mm, 2 times as described above
A test piece was prepared using a liquid reaction-curable coating for power generation.

[0019]

Example 4 A power generation test was started using the test piece prepared above. As a heat source for measurement, 1 L of boiling water was placed in an Erlenmeyer flask and placed on the coating film. Start, hot water temperature 98 ° C, iron plate back surface temperature 23 ° C, ammeter 150μA, 5 minutes elapsed, hot water temperature 95 ° C, iron plate back surface temperature 23 ° C, ammeter 150μA, 10 minutes elapsed, hot water temperature 85 ° C, back side of iron plate Temperature 23 ° C, ammeter 150μA, 15 minutes passed, hot water temperature 80 ° C, iron plate back temperature 22 ° C, ammeter 120μA, 25 minutes passed, hot water temperature 75 ° C, iron plate back temperature 22 ° C, ammeter 100μA, 35 minutes Elapsed time, hot water temperature 71 ° C, iron plate back temperature 21 ° C, ammeter 90μA, 45 minutes elapsed, hot water temperature 68 ° C, iron plate back temperature 21 ° C, ammeter 75μA, 55 minutes elapsed, hot water temperature 65 ° C, iron plate back surface Temperature 21 ° C, ammeter 50μA, 65 minutes elapsed, hot water temperature 63 ° C, iron plate back surface temperature 21 ° C, ammeter 50μA. After 8 hours, the temperature of the hot water was room temperature, but the ammeter showed around 20μA. What I was wearing That power generation has been carried out to have been demonstrated from the above record.

[0020]

Since the present invention is configured as described above, it has the following effects.

What can be understood from the table of the fourth embodiment is as follows.
It is called the Seebeck effect that we expected from the results. When different heat is applied to both sides of different types of bonded conductors or semiconductors, electricity called thermal current flows through the circuit, that is, not only the action of generating thermoelectric power but also the Peltier effect. The heat absorbed on the other side is released on one side, that is, the heat conduction and radiation effect is obtained. For example, when the painting site is a long and tall building, the solar heat is applied only to the upper part.For the case of a long and narrow roof painting, the area where the solar heat is applied is not uniform and the temperature given to the whole is not constant. We hear that heat or heat absorption and heat conduction / radiation effect occur due to the fact. It can be considered from this result that a phenomenon called a Thomson effect is involved.

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[Procedure amendment]

[Submission date] April 26, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

[0016]

Example 1 "Example of a one-pack type paint for power generation" 25 parts of Goodyear Priolite S-5. 10 parts of tricresyl phthalate. 25 parts of acetic ester. 1 tool
4 parts. After stirring and dissolving, 15 parts of nichrome powder was added. 10 parts of granular carbon powder. 1 part of carbon fiber carbon fiber. Was added and mixed and dispersed using a disper to obtain a uniform coating for power generation.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

[0017]

Example 2 "Example of a two-component reaction-curable coating film for power generation", a polyether diol resin having a hydroxyl equivalent of 1,000
9 parts. 1 part of a 20% solution of lead octate. 24 parts of ethyl acetate. 15 parts of dioctyl phthalate. After mixing and dissolving, 20 parts of granular acetylene black was added. Was added and dispersed by a roll mill, and 1 part of milled fiber short fiber was added thereto. The mixture was mixed to produce a uniform coating base A liquid. At the time of application, curing agent B liquid polyisocyanate NCO group-containing (10,0 to 10.7) was added to 21 parts of paint base A liquid at 21 parts.
%. Add, knead and spread.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction contents]

What can be understood from the table of the fourth embodiment is as follows.
From the results, when different heat is applied to both sides of different types of joined conductors or semiconductors called the Seebeck effect, which is expected from the result, a current called a thermal current flows through the circuit,
In other words, not only the action that thermoelectric power generation occurs, but also that the heat absorbed on the opposite side, called the Peltier effect, is released on one side, that is, the heat conduction and radiation action is obtained, When the site is a long and thin building, the solar heat only hits the upper part,
The results show that this phenomenon is related to the phenomenon called the Thomson effect, which causes heat generation, heat absorption, and heat conduction and heat dissipation due to the fact that the area exposed to solar heat is not uniform and the temperature applied to the whole is not constant, such as in the case of a long and narrow roof coating. Can be considered from.

Claims (1)

[Claims] 1. A coating for power generation in a coated film obtained by mixing and dispersing a thermoelectric material in a synthetic resin solution.