KR20060009396A - The refrigerant development made by the super absorbent resin and method for preparing the same - Google Patents

Abstract

    The present invention relates to a new material refrigerant agent using a high absorbent resin and a method for manufacturing the same, wherein the refrigerant agent comprises: forming a first mixture obtained by stirring a diol compound having a hydrophilic hydroxyl group as a main raw material; Forming a second mixture obtained by stirring the composition having a mixture of two or more compounds such as a monomer having two or more hydroxyl functional groups and an antifreeze or a refrigerant as a main raw material; And to prepare a new refrigerant comprising a step formed by mixing the first mixture and the second mixture respectively.

Refrigerant, Diol compound, hydrophilic, super absorbent polymer, monomer, hydroxyl group, AERO SOL

Description

     New material refrigerant made of high-absorbent resin and its manufacturing method {THE REFRIGERANT DEVELOPMENT MADE BY THE SUPER ABSORBENT RESIN AND METHOD FOR PREPARING THE SAME}

The present invention relates to a new material refrigerant using a high absorbent resin and a method for producing the same. More particularly, the present invention relates to a preparation of a new refrigerant and a method for preparing the same, including the step of mixing a high absorbent resin with a hydrophilic hydroxyl functional monomer, an antifreeze, and a refrigerant or two or more additives.

 In a similar design, the application number 20-1999-0010464 is the name of the ice pack, the design is to improve the appearance of the entire flat surface, so that the polymer material is expanded evenly inside the container to freeze the entire inside evenly frozen, etc. It relates to an ice pack to improve the freezing effect, to maximize the use efficiency by extending the melting time in the frozen state during use, and to increase the contact area during beauty or cold pack.

 Patent No. 10-2000-0044949 is a patent for the use of ice packs, the name of the application is a cooling helmet using a heat transfer semiconductor, the present invention relates to a control helmet (anti-static), in particular, the heat transfer effect of the heat transfer semiconductor The present invention relates to a cooling helmet for use. The conventional control helmet lowers the temperature of the air by inserting a solid ice pack into the upper part of the helmet and then forcibly inhaling the air by using a fan motor installed at the rear of the helmet through the space of the solid ice pack. As a supply to the face of the operator, there was a problem that the cooling state can not be maintained.

 The invention has been devised to solve the above problems, the heat transfer of the heat conducting conductor, characterized in that the heat-conducting conductor and the heat dissipation plate, the heat dissipation fin and the fan motor, a filter mounted on the helmet for control, using the control means of the heat conducting conductor It relates to a cooling helmet of the cooling method using the effect.

In general, the refrigerant refers to a general term for a medium that transfers heat to a low temperature object by taking heat from a high temperature object as a working fluid or medium of a refrigeration cycle (CYCLE).

 Types of refrigerants currently used include vaporized fluorinated carbon chloride refrigerants (freons), liquid organic refrigerants, air mixed refrigerants, chloromethyl (CHLOROMETHYL) refrigerants, ammonia, polyacrylamides, and the like. In consideration of the efficient refrigeration effect of the refrigerant, it is possible to maximize the refrigerating effect by selecting the appropriate refrigerant for each characteristic according to the capacity of the freezer or freezer, the type of compressor (compressor), and the purpose of the product to be refrigerant. . There are some products on the market which are similar to the development product made using refrigerant. These similar products serve to keep the refrigerant at a constant temperature for its intended use. To maintain this temperature means the temperature of people or things. In humans, the degree of hot or cold is called sensational temperature. Therefore, we would like to reveal that this product we are trying to develop is closely related to the sensory temperature for the purpose of use.

      The haptic temperature depends on the heat exchange state of the surface of the object, which is determined by the combination of weather factors such as wind speed, humidity, and solar radiation. However, in addition to this rate of change, it also varies depending on the state of mind, dwelling, and psychology. Several methods of estimating haptic temperatures have been devised, including the effective temperature of Jaglo. For example, in recent years, the discomfort index has been widely used, which is a kind of haptic temperature that combines temperature and humidity. In addition, the haptic temperature may be determined in consideration of wind speed and solar radiation.

 For example, the diminishing temperature of Rilke is expressed by the following equation.

    (TF: Diminished temperature, T: Temperature, V: Wind speed, I: Radiation received by the earth's surface (The intensity of insolation received per minute per cm 2)

 In addition, a wet bulb thermometer, a katyrometer, and a cooling power meter may be used to indicate the sensed temperature. The body temperature of these people is usually about 25 ℃ at maximum and 10 ℃ minimum. And in the case of an object, the temperature of the product used is determined by the object's characteristics as it is affected by the object.

      In the present invention, a method of inserting and cooling a diol compound of water or a hydrophilic group through an inlet of a wrapping paper was used as a conventional method, but on the other hand, there was a disadvantage of disposable and in this form, the disadvantage of disposable could not be compensated. In order to make up for these shortcomings and to produce a product that can be used semi-permanently, it came to such an invention.

Currently, products that are sold and registered on the market using this similar development product include various products such as vests, cushions, mufflers, belts, boxes, and mats. These products have been marketed in the pursuit of diversity and expansion in the fields used by refrigerants. We have developed these refrigerants in order to achieve high growth of fast growing commercial products. Therefore, the present invention has been completed by discovering that the refrigerants commonly used in all of these products can be developed to better and lower cost, high quality, high efficiency, improved workability, and mass production.

      Accordingly, it is an object of the present invention to provide a new refrigerant preparation and a method for preparing the same, including the step of forming a mixture of a high absorbent resin and a hydrophilic hydroxyl functional monomer, an antifreeze and a refrigerant or two or more additives.

In order to achieve the above object, the present invention has been classified according to each use.

The reason for this is that the haptic temperature varies depending on the respective applications, and the manufacturing method varies depending on the temperature. If you want to complete the development product attached to the human body, the external surface of the product is hard and it will be inconvenient to use for its use, and there is a case that a product opposite to the above is required. It can also be an important factor.

For example, in the case of neck scarf type, the size of the human neck should be individual and there should be no problem for practical use, and it will be able to move freely and comfortably when the product is completed to solve the various types of problems. It should be made in the form or shape that can be used and there should be no problems derived from it. In order to correct these various problems, the present invention was progressed while changing the compounding ratio of the diol having a hydroxyl group in the super absorbent polymer.

The present invention is composed of 2% by weight or less of one or more high-absorbency resins selected from the group consisting of POLYACRYLAMIDE-based resin, AEROSOL, SOL-GEL, AERO GEL, 88 to 98% by weight in a water-containing state, stirring at room temperature conditions A first mixture sufficiently stirred below 50 (RPM); The main ingredient is a mixture of diol (DIOL) having two hydroxyl groups ((ETHYLENE GLYCOL (EG), DIETHYLENE GLYCOL (DEG), POLYETHYLENE GLYCOL (PEG), POLYTETRAMETHYLENETHER GLYCOL (PTMEG), POLYPROPYLENE GLYCOL (PPG)) It is formed by the composition of the second mixture obtained by stirring at 5% by weight and sufficiently stirred at a stirring speed of 50 (RPM) or less under room temperature conditions; the shape of the refrigerant developed by mixing the two mixtures obtained as a composition is HARDNESS. It is classified as SHAPE, and its use is mainly used as a main raw material such as a box, a vest, a belt, etc. The mixtures are different but coexist to form additional properties.

Hereinafter, the present invention will be described in more detail.

As a component of the refrigerant according to the present invention, it consists of a first mixture and a second mixture.

The 1st mixture which becomes the most basic of a refrigerant | coolant agent can use what is named and marketed as a high water absorbing resin.

The second mixture aims to improve the mechanical properties, long-term reliability of the refrigerant and the best thermal stability at low temperatures. However, these basic physical properties may cause coercive losses due to external pressure or other factors. Therefore, in order to improve the adaptability to these external factors, the following items are shown.

1. Adopt a gradual DROP injection method to prevent reaction due to mixing of two or more compositions with hydroxyl functional groups.

2. Due to environmental factors, it reacts with humidity below 40% and temperature below 25 ℃.

Under the above conditions, the primary reaction should be terminated.

The first component of the resin composition according to the present invention, the high absorbent resin has a water absorption capacity of 600 to 800% and has a VISCOSITY 500 ± 200 (CPS). It was found that FREE ABSORBENCE (g / g) was high in the step of applying a high absorbent resin to the present product. The composition ratio (%) consisted of 1 / 30-1 / 60.

Other elements are also referred to as diols (DIOL) when they have two or more hydroxyl groups as monomers, and generically refer to dihydric alcohols represented by the general formula R (OH) 2. The two hydroxyl groups each have the properties of alcohol and take the form of primary alcohol, secondary alcohol or tertiary alcohol. The common name is glycol followed by the hydrocarbon name from which two hydroxyl groups have been removed, but in the IUPAC nomenclature, a diol is added to the parent of the parent hydrocarbon name and the position of the hydroxyl group is indicated by the number. For example, CH3CH (OH) CH2OH is called propylene glycol or 1, 2-propanediol. Glycol is obtained by reacting acetic acid or alkali acetate with a halogen compound to make a diacetic acid ester, which is hydrolyzed. Reduction of ketones results in tertiary glycols in two molecules of ketones, in addition to monohydric alcohols. These glycols are generally referred to as pinacol. Usually a sweet, sticky colorless liquid. Pinacol has a higher boiling point than monohydric alcohol. It has the properties of alcohol in general, and it is often soluble in water and alcohol, but insoluble in ether. Industrially important glycols include ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, hexylene glycol, butylene glycol, among which the simplest ethylene glycol is sometimes referred to as glycol. Therefore, it is preferable that the hydroxyl group which is a functional group uses two or more monomers.

On the other hand, if a monomer having one hydroxyl group is defined and analyzed, it is defined as follows.

A substance that dissociates in aqueous solution to form hydroxide ions and neutralizes acid to produce salt and water is called a base.

Sodium hydroxide or ammonia, for example,

It is a base because the reaction produces OH (-). The base is called BOH, and it is called strong base that the ratio of dissociation into B (+) and OH (-) in aqueous solution is large. The hydroxides of alkali metals and barium, except lithium, act as strong bases. The use of such a monomer having a monovalent hydroxyl group has a dangerous property of decomposing organic substances or melting aluminum. However, they can also penetrate clogged sewers, and dilute solutions to remove stains from cloth. This is because the hydroxyl group OH (-) comes out when the base is dissolved in water. Therefore, when a monomer having a monovalent hydroxyl group is used, it is not suitable for use because it dissolves in water of the absorbed first mixture and presents a risk.

Test example

<Example 1>

The initial temperature (T₁) and the temperature (T2) after 10 seconds of melting were investigated with the refrigerant prepared by the above method.

TABLE 1

Example Super Absorbent Resin (P) One 2 3 Initial temperature (℃)  -5.4  -4.7  -3.2 Temperature after 10 seconds (℃)  2.3  2.9  4.0

1: 0.4% by weight superabsorbent resin, 2: 0.6% by weight superabsorbent resin

3: 0.8% by weight superabsorbent polymer, P: superabsorbent polymer compound containing water

As can be seen in Table 1, when the weight percent of the high absorbent resin is increased, it can be seen that the temperature gradually increases. In other words, this means that the proportion of water decreases as the high water-absorbent resin increases, and decreasing the weight percentage of water affects the freezing temperature. The more resins, the higher the freezing point. Therefore, as the superabsorbent polymer absorbs the water molecules, the superabsorbent polymer interacts with the water molecules that affect the temperature. In other words, the above results enable the temperature correction by using the weight percent of the high absorbent resin to help the development of a refrigerant for a purpose. In addition, if the weight percentage of the super absorbent polymer increases so much that it exceeds the predetermined weight percentage, it will not be involved in the temperature above. This is because water molecules do not play a role in the amount of the resin beyond the absorption amount. Can not do it. Therefore, development of a suitable application should be preceded by appropriate weight percent first. As can be seen from the above table, when the water absorption rate of the high absorbent resin is 600% or more, it is not appropriate that the weight percentage exceeds 20% by weight.

TABLE 2

Example DP EP FP One 2 3 One 2 3 One 2 3 Initial temperature (℃)  -3.2  -2.4  -2.1  -4.6  -5.7  -9.0  -3.5  -1.1  -1.2 Temperature after 10 seconds (℃)  0.1  1.0  0.8  -0.9  -1.3  -2.9  -0.9  1.0  0.9

1, 2, 3: 4% by weight superabsorbent polymer, AP: ETHYLENE GLYCOL

, BP: DIETHYLENE GLYCOL, CP: ETHYLENE GLYCOL + DIETHYLENE GLYCOL

Table 2 examines the initial temperature and temperature stability by changing the weight percent of the diol compound by constantly grabbing the weight percent of the high absorbent resin. As can be seen in Table 2 above, the initial temperature stability is increased by a change in the weight% of the diol compound in a predetermined amount of the high absorbent resin, and the symptoms vary depending on the type of the diol. For this reason, the most prominent EP GRADE is showing a good tendency. At this time, it is good to use high HARDNESS of each grade. However, it may vary depending on the application. In addition, as the weight percentage of the diol increases, HARDNESS is lowered and its fluidity is increased. Therefore, it is undesirable that the weight percentage of diol exceed 10 weight%.

TABLE 3

Example AP BP CP One 2 3 One 2 3 One 2 3 Initial temperature (℃)  -1.7  -3.9  -5.6  -7.0  -4.9  -5.1  -3.2  -2.4  -2.1 Temperature after 10 seconds (℃)  0.6  -0.7  -0.5  -1.9  -1.5  -1.3  -2.2  -2.2  -1.6

          1, 2, 3: 0.2-4% by weight of super absorbent polymer, AP: ETHYLENE GLYCOL,

       BP: DIETHYLENE GLYCOL, CP: ETHYLENE GLYCOL + DIETHYLENE GLYCOL

As can be seen in Table 3, as a result of the classification into three by the ratio of the super absorbent polymer 1, 2, 3 as the weight of the superabsorbent resin increases as the weight of the superabsorbent resin increases It can be seen that it affects the temperature. In the case of using ETHYLENE GLYCOL as monomer, the temperature was very low as the amount of superabsorbent polymer increased, and the temperature was almost similar when measured after 10 seconds. This indicates the difference in the water absorption rate of the water molecules and as shown in the above table, it can be seen the effect on the temperature of the water molecules. This may change depending on the intended use of the field, but under current circumstances. In addition, the initial temperature stability can be seen by varying the type of diol in AP, BP, CP. Therefore, BP GRADE is the one that seems most feasible. At this time, it is good to use high HARDNESS of each grade.

In other words, the temperature decreases as the weight percentage of the diol compound and the super absorbent polymer increases.

Thus, the composition of the refrigerant according to the present invention provides an excellent product at low cost while having basic physical properties and initial temperature stability. This makes it possible for mass production and a wide range of applications by using refrigerants with appropriate requirements in many areas.

Claims (6)

A polyacrylamide-based resin of the first mixture, AEROSOL, SOL-GEL, AERO GEL, at least one high-absorbent resin selected from the group consisting of 0.01 to 1.0% by weight of water absorption of 500 to 1000 (%); Refrigerant mixture was mixed using 0.5 to 5.0% by weight of the EG (ETHYLENE GLYCOL) alone and 5.0 to 10.0% by weight of the organic acid in the second mixture. The refrigerant agent according to claim 1, having an absorption rate of 600 to 800 (%) or more and mixed by using DEG (DIETHYLENE GLYCOL) alone in an amount of 0.5 to 5.0% by weight and 5 to 10% by weight of an organic acid in the second resin mixture composition. The method of claim 1, wherein the water absorption rate is 600 to 800 (%) or more, 0.1 to 5.0% by weight of PEG (POLYETHYLENE GLYCOL, molecular weight (MW) 100 to 400) alone and 5.0 to 10.0% by weight of the organic acid in the second resin mixture composition Refrigerant mixed using%. The method of claim 1, wherein the water absorption is 600 to 800 (%) or more, 0.1 to 2.0% by weight of the molecular weight of the diol alone (molecular weight, MW = 1000 or less) alone and 5.0 to 10.0% of the organic acid in the second resin mixture composition Refrigerant mixed using%. The method of claim 1, wherein the water absorption rate is 600 to 800 (%) or more, 0.1 to 2.0% by weight of the diol molecular weight 2000 or less (molecular weight, MW = 2000 or less) alone and 5.0 to 10.0% by weight of the organic acid in the second mixed resin composition Refrigerant mixed using. The diol having two hydroxyl groups in the second mixed resin composition according to claim 1, wherein the water absorption is selected from 600 to 800 (%), about 800 (%), and 500 to 1000 (%). Refrigerant mixed with 0.1 to 8.0% by weight and 5 to 10% by weight of organic acid.