JP3978532B2 - High specific heat composition - Google Patents

Description

【Technical field】
[0001]
The present invention is, for example, a liquid main material applied to uses such as engine coolant, transformer coolant, grinding fluid, polishing fluid, floor heating heat medium, cool storage agent, heat storage agent, solar heat medium, or floor. The present invention relates to a high specific heat composition that can be applied as a gaseous main material used in applications such as a circulating fluid for heating, a fluid for a heat exchanger, a refrigerant for a domestic air conditioner, a building air conditioner, and a large freezer.
[Background]
[0002]
Conventionally, for example, in the field of automotive coolants and transformer coolants, water is often used as a liquid high specific heat substance, and freezing point depressants, corrosion inhibitors, stabilizers, pH adjusters, etc. are added to this. Has been.
[0003]
In addition, water is also frequently used as a high specific heat base material in fields such as a cold storage agent, a thermal storage agent, a grinding liquid, a polishing liquid, a floor heating circulating fluid, or a refrigerant. This is because water is the most specific heat (1 cal / K / g) among materials, and is easily available and stable, as expressed by the phrase “It is difficult to warm up but it is difficult to cool once it is warmed up”. It is because it is excellent in property.
[0004]
For this reason, for example, in each field such as automotive coolant, transformer coolant, cool storage agent, grinding fluid, polishing fluid, floor heating circulating fluid, heat storage agent, etc., performance evaluation and design have been made based on water. .
DISCLOSURE OF THE INVENTION
[Problems to be solved by the invention]
[0005]
The present invention aims to provide a high specific heat composition having a specific heat larger than the specific heat of water by breaking the chemical common sense that water has the highest specific heat .
[Means for Solving the Problems]
[0006]
In order to achieve the above object, the present invention provides ethylene glycol, propylene glycol, 1,3 butylene glycol, hexylene glycol, diethylene glycol, trimethylene glycol, butylene glycol, 1,1-dimethylethylene glycol, 1,2-dimethylethylene. A glycol selected from glycol, 1-methyltrimethylene glycol, 2-methyltrimethylene glycol, 2-propylethylene glycol, 2-butylethylene glycol, and 2,2-dimethyltrimethylene glycol, water, or a mixture thereof. In the substrate, an active ingredient composed of one or more selected from compounds having a benzophenone group that increases the amount of dipole moment in the substrate is 1 to 100 parts by weight of the substrate. 10 The high specific heat composition characterized in that it is blended at a ratio of parts by weight as its gist.
[0007]
The high specific heat composition of the present invention is a liquid main component that is applied to applications such as engine coolant, transformer coolant, grinding fluid, polishing fluid, floor heating heat medium, cool storage agent, heat storage agent, and solar heat medium. It can be applied as a material or as a gaseous main material that is applied to refrigerants such as circulating fluid for floor heating, fluid for heat exchangers, household air conditioners and air conditioners for buildings, and large freezers. Performances such as heat storage, cold storage and heating can be dramatically improved.
[0008]
Water, glycol , or a mixture thereof is used as the substrate. As glycols , ethylene glycol, propylene glycol, 1,3 butylene glycol, hexylene glycol, diethylene glycol, trimethylene glycol, butylene glycol, 1,1-dimethylethylene glycol, 1,2-dimethylethylene glycol, 1-methyltrimethylene Those selected from glycol, 2-methyltrimethylene glycol, 2-propylethylene glycol, 2-butylethylene glycol, and 2,2-dimethyltrimethylene glycol are used. Among these, ethylene glycol and propylene glycol are particularly preferable in terms of water solubility and corrosion prevention.
[0009]
When the high specific heat composition is applied to uses such as a circulating fluid for floor heating, a fluid for a heat exchanger, a home air conditioner, a building air conditioner, a large freezer, etc. (when the base material is a gas) A vapor obtained by mixing water vapor and water with glycols such as ethylene glycol and propylene glycol is used.
[0010]
In the base material, in addition to the above-mentioned components, for example, corrosion inhibitors, dyes, antioxidants, pH adjusters, antistatic agents, stabilizers, wetting agents, mica scale pieces, glass pieces, glass fibers, carbon Substances such as fiber, calcium carbonate, barite, and precipitated barium sulfate can be added as needed.
[0011]
The above-described base material is displaced in the dipole 12 existing in the base material 11 as shown in FIG. The phrase “displacement in the dipole 12” means that each dipole 12 inside the base material 11 rotates or the phase shifts.
It can be said that the arrangement state of the dipole 12 inside the base material 11 before energy is applied as shown in FIG. 1 is in a stable state. However, as shown in FIG. 2, when the dipole 12 existing inside the base material is displaced by applying energy, each dipole 12 inside the base material 11 is placed in an unstable state. Thus, each dipole 12 attempts to return to the stable state shown in FIG.
[0012]
At this time, energy consumption occurs. It is considered that a high specific heat effect that “it is difficult to warm up but is difficult to cool down once warmed up” is caused through the displacement of the dipole inside the base material and the energy consumption due to the restoring action of the dipole.
[0013]
When considering such a mechanism of energy consumption, it is understood that the amount of dipole moment in the base material 11 as shown in FIGS. 1 and 2 is greatly involved. That is, when the amount of the dipole moment inside the base material 11 is large, the energy consumption of the base material 11 becomes high.
[0014]
The amount of dipole moment in the substrate varies depending on the types of components constituting the substrate. Even if the same base material component is used, the amount of dipole moment generated in the base material changes depending on the temperature when energy is applied. Also, the amount of dipole moment varies depending on the amount of energy applied to the substrate. For this reason, it is desirable to appropriately select and use the base material component that gives the largest amount of dipole moment in consideration of the temperature and energy level when applied as a high specific heat composition.
[0015]
However, when selecting the base material component, not only the amount of dipole moment in the base material, but also the handleability, moldability, availability, temperature, depending on the application and use form of the high specific heat composition. It is desirable to consider performance (heat resistance and cold resistance), weather resistance, price, and the like.
[0016]
This base material is mixed with an active ingredient that increases the amount of dipole moment in the base material. An active component is a component that dramatically increases the amount of dipole moment in the base material. The active component itself has a large dipole moment amount, or the active component itself has a small dipole moment amount. By blending an active ingredient, it refers to a component that can dramatically increase the amount of dipole moment in the substrate.
[0017]
For example, the amount of the dipole moment generated in the base material 11 when the predetermined temperature condition and the magnitude of energy are combined with the active ingredient is tripled under the same condition as shown in FIG. It will increase to 10 times that amount. Along with this, the energy consumption due to the restoring action of the dipole when the above-mentioned energy is applied will increase dramatically, and it is considered that a high specific heat effect far exceeding the prediction will occur.
[0018]
Examples of active ingredients that lead to such effects include compounds having a benzophenone group such as 2-hydroxy-4-methoxybenzophenone (HMBP) and 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid (HMBPS). One or more selected from among them can be mentioned.
[0019]
The amount of dipole moment in the active component varies depending on the type of the active component as well as the amount of dipole moment in the base material. Even if the same active ingredient is used, the amount of dipole moment generated in the substrate also changes depending on the temperature when energy is applied. Also, the amount of dipole moment varies depending on the amount of energy applied to the substrate. For this reason, it is desirable to select and use the active component that gives the greatest amount of dipole moment in consideration of the temperature and the magnitude of energy when applied as a high specific heat composition.
[0020]
In addition, when applying the high specific heat composition to a circulating fluid for floor heating, a fluid for a heat exchanger, a home air conditioner, a building air conditioner, a refrigerant used in a large freezer, etc. (when the substrate is a gas) It is desirable to select and use an active ingredient having a boiling point close to that of the substrate.
BEST MODE FOR CARRYING OUT THE INVENTION
[0021]
Hereinafter, the high specific heat composition of the present invention will be described in detail. First, the form at the time of applying the high specific heat composition of this invention to the engine coolant for motor vehicles is demonstrated. In this engine coolant, the active ingredient is contained in the base material at a ratio of 3 to 100 parts by weight with respect to 100 parts by weight of the base material.
[0022]
As the substrate, glycols such as ethylene glycol, propylene glycol, 1,3 butylene glycol, hexylene glycol, diethylene glycol and glycerin are preferable. Among these, ethylene glycol and propylene glycol are particularly preferable from the viewpoints of water solubility and corrosion prevention.
[0023]
Examples of the active ingredient include one or more selected from compounds having a benzophenone group such as HMBP and HMBPS.
[0024]
In this engine coolant, in order to prevent metal corrosion, phosphoric acid alkali metal salt or amine salt, C ₆ -C ₁₂ aliphatic monobasic acid, alkali metal salt, ammonium salt, amine salt, C _6- aliphatic dibasic acids C _12, their alkali metal salts, ammonium salts, aliphatic carboxylates such as amine salts, benzoic acid, alkali metal salts, ammonium salts, amine salts of the general formula R-C ₆ H ₄ - COOH (R is C ₁ -C alkyl group ₅₎ alkyl benzoate having the structure, the alkali metal salts, ammonium salts, amine salts of the general formula _{RO-C 6 H 4 -COOH (} R is C ₁ -C ₅ alkoxy benzoic acid having the structure of the alkyl group), its alkali metal salts, ammonium salts, amine salts, the general formula _{RO-C 6 H 4 -CH =} COOH (R or an alkyl group C ₁ -C ₅ From cinnamic acid, alkylcinnamic acid, alkoxycinnamic acid, alkali metal salt, ammonium salt, amine salt, molybdate, tungsdenic acid, vanadate One type or two or more types selected, corrosion inhibitors such as alkali metal nitrates, alkali metal salts of silicic acid, alkali metal salts of nitrous acid, other antifoaming agents, colorants and the like can be added.
[0025]
Next, the form at the time of applying the composition of this invention to a machine tool temperature control medium liquid is demonstrated. This medium solution uses water as a base material, and the active ingredient is contained in the base material at a ratio of 1 to 100 parts by weight with respect to 100 parts by weight of the base material.
[0026]
The active ingredient is one or more selected from compounds having a benzophenone group, such as HMBP and HMBPS, as in the engine coolant described above.
[0027]
In addition, as viscosity modifiers, alcohols such as methyl alcohol and ethyl alcohol, glycols such as ethylene glycol and propylene glycol, etc., pH adjusters, aliphatic amines such as methylamine and triethylamine, rust inhibitors, capric acid, Fatty acids such as lauric acid, antifoaming agents such as silicone, pour point depressants such as polymethacrylate and polyisobutylene, and the like can be appropriately blended.
[Brief description of the drawings]
[0028]
FIG. 1 is a schematic diagram showing a dipole in a substrate.
FIG. 2 is a schematic diagram showing a state of a dipole in the base material when energy is applied.
FIG. 3 is a schematic diagram showing the state of the dipole in the base material when the active ingredient is blended .

Claims (6)

  Ethylene glycol, propylene glycol, 1,3 butylene glycol, hexylene glycol, diethylene glycol, trimethylene glycol, butylene glycol, 1,1-dimethylethylene glycol, 1,2-dimethylethylene glycol, 1-methyltrimethylene glycol, 2- A dipole in the base material in a base material made of glycol selected from methyl trimethylene glycol, 2-propylethylene glycol, 2-butylethylene glycol, and 2,2-dimethyltrimethylene glycol, water, or a mixture thereof. One or more active ingredients selected from compounds having a benzophenone group that increases the moment amount are blended in an amount of 1 to 100 parts by weight with respect to 100 parts by weight of the base material. High specific heat composition characterized.   The high specific heat composition according to claim 1, wherein the base material is glycol and the active ingredient is blended in an amount of 3 to 100 parts by weight with respect to 100 parts by weight of the base material.   The high specific heat composition according to claim 1, wherein the substrate is a gas. The high specific heat composition according to claim 3, wherein the substrate is water vapor.   The high specific heat composition according to claim 1, wherein the compound having a benzophenone group is 2-hydroxy-4-methoxybenzophenone.   The high specific heat composition according to claim 1, wherein the compound having a benzophenone group is 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid.

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