JP2009046375A - Surface-treated powdery carbon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that powdery carbon has such a property that it stains other things, in particular, such a property that when it is mixed with cement, hydration reaction is inhibited and the resulting cement exhibits no strength although the cement solidifies. <P>SOLUTION: Surface treated powdery carbon having strength and hardly staining other things is obtained by coating a vinyl-based resin or a starch paste on the surface of powdery carbon so as to convert the properties of the surface of the powdery carbon into the properties of the resin or starch. A cement formed article having a high powdery carbon content can be obtained by using, especially, the powdery carbon coated with the vinyl-based resin, because the powdery carbon coated with the vinyl-based resin has affinity with cement, and does not inhibit hydration reaction and decrease strength even when it is mixed in cement. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

Dirty pulverized coal production method and surface-treated pulverized coal capable of increasing the pulverized coal content in cement molding

Although there is a technique of mixing pulverized coal into cement as in Japanese Patent Application No. 2000-070612, when the amount of pulverized coal is increased, normal hydration reaction does not occur and the strength decreases.
For this reason, in the case of using pulverized coal, the blending ratio is limited to 3% and desirably up to 1%.

References

  Japanese Patent Application 2000-070612

Challenges to be solved

The inventor has already confirmed through tests that when charcoal is brought close to the body, red blood cells change into a smooth state and blood flow is improved, and cells are activated to increase body surface temperature.

In addition, although it has no effect on tomatoes and kiwifruits when brought close to the fruit, the inventors have confirmed through tests that it can maintain the freshness and improve sugar content of peaches, strawberries, melons and many other fruits. .

However, in order to use charcoal for the body and food, it is necessary to obtain charcoal that is not dirty. In particular, pulverized coal was unusable because it became dirty, and could not be easily used around us.

However, since the powdered charcoal does not feel strange to the skin, such as pellets, it becomes a comfortable bedding and the cost is low if the powdered charcoal is enclosed in a non-woven fabric and used for sheets.
Moreover, since it can be freely bent when encapsulated in a nonwoven fabric, it can be easily used as a low-cost material for maintaining the freshness of food and improving the sugar content of fruits.

If a cement molding containing a certain amount or more of pulverized coal can be produced, it can be used to maintain freshness, improve sugar content, and maintain health, and can easily make waterways and walls at low cost to purify water and improve indoor space.

However, when pulverized coal is mixed into cement, the hydration reaction is hindered, and the strength of the concrete decreases. For this reason, the mixing ratio of pulverized coal is limited to about 1 to 3 percent by weight.

Means for solving the problem

In claim 1, by mixing and kneading pulverized coal, an adhesive, and water so that the adhesive adheres evenly to the surface of the pulverized coal, and drying and adhering the resin to the surface of the pulverized coal, the property of the surface is changed from the charcoal to the vinyl resin. Instead, it is characterized in that it is made of vinyl-based resin-coated pulverized coal that is not easily soiled or crushed.

The adhesive to be used is preferably an inexpensive one or a plurality of adhesives selected from the group consisting of an emulsion vinyl acetate resin adhesive, an emulsion vinyl urethane resin adhesive, and a polyvinyl alcohol water-soluble adhesive.

When an emulsion vinyl acetate resin adhesive or an emulsion vinyl urethane resin adhesive is used, a crosslinking agent isocyanate may be mixed in the adhesive and used.

In claim 2, the powdered coal and the starch-based adhesive are attached so that one or more starch-based adhesives selected from the group consisting of starch-based adhesives such as wheat flour, corn starch, tapioca, potato starch and rice flour are evenly adhered to the surface of the powdered coal. It is characterized in that water is mixed and kneaded and then dried to adhere starch to the surface of the coal, thereby changing the surface properties to starch and making it a starch-coating coal that is not easily soiled or crushed.

Vinyl resin-coated pulverized coal and starch-coated pulverized coal are called surface-treated pulverized coal.

In claim 3, a vinyl resin-coated powdery coal having the property of a vinyl resin having a surface compatible with cement obtained by claim 1 and cement are mixed to form a molded product.

Although pulverized coal hinders the hydration reaction of cement, the surface of vinyl resin coated pulverized coal is the property of vinyl resin. Since it does not decrease, the vinyl-based resin-coated pulverized coal content can be prepared according to the application.

In addition, if coarse aggregate and fine aggregate are added to make charcoal-containing concrete, it can be easily used in rivers and buildings, and it has far-infrared emission function, water purification effect by adsorption function, comfortable space creation, health effect. It is possible to obtain.

In claim 4, in order to form the vinyl resin-coated coal powder or starch-coated coal powder of claim 1 or claim 2 into a layer having a uniform thickness, the nonwoven fabric sheet is covered with the nonwoven fabric sheet after being uniformly arranged as shown in FIG. And enclose with a heat seal.

Nonwoven sheets with coated powdered coal are used for bedding such as sheets and pillows, clothes, and thermal pads.

Moreover, although it uses for the packaging material of a foodstuff and a flower bud, and the packaging material which wraps food and a flower bud directly, it can also stick and use on the wall surface inside a foodstuff and a flower shed storage.

When the non-woven sheet with coated powdered coal is brought close, the sugar content of many fruits such as strawberries, peaches and melons will increase in addition to the effect of maintaining freshness.

The inventor has found that the sugar content is improved by 3 or more in parallel with keeping the freshness when some fruits are kept close to a non-woven sheet containing pulverized coal for 9 days or less after fruit picking.

The value of such high-quality fruits increases with an increase in sugar content, so that a large economic effect is produced by using a non-woven sheet containing coated pulverized coal.

When the non-woven sheet containing coated powdery coal is brought close to the body, the viscosity of red blood cells is lowered and the blood flow is improved.

Furthermore, when the charcoal-containing non-woven sheet is brought close to a part of the body, the body surface temperature is high for 1 hour or more after the cell activity of the whole body is activated and the charcoal-containing non-woven sheet is removed. This is because the cells are activated and helps maintain health.

Even if the conventional charcoal is encased in a fine non-woven fabric, the powder will come out on the surface and become dirty. However, the surface-treated charcoal with the surface coated with starch or vinyl resin adheres to hands, paper or cloth. It is difficult to crush, so it is not soiled just by enclosing it directly in the nonwoven fabric.

Charcoal-containing cement moldings and charcoal-containing concrete mixed with vinyl-based resin-coated pulverized coal also create a healthy space that emits far-infrared rays and activates animal cells. In addition, it has the action of activating water by the action of adsorption and the action of far-infrared rays to convert it into clean water, making it a suitable material for waterways.

The pulverized coal used in the present invention is most desirable because hard materials such as Bincho charcoal and activated carbon are less likely to be crushed, and bamboo charcoal and hardwood charcoal are desirable, but organic charcoal and coal can also be used.
The size of the pulverized coal is 0.1 mm to 2 mm, preferably 0.5 mm to 1.0 mm.

As shown in Fig. 1, the emulsion-based vinyl acetate resin adhesive or the emulsion-based vinyl acetate resin adhesive diluted with water to 1.2-2.0 wt. Vinyl-based resin-coated pulverized coal obtained by uniformly bonding a vinyl-based resin and drying it. At this time, when 0.1 weight of isocyanate is added, water resistance and adhesive strength are further improved.

When the blending ratio of the emulsion-based vinyl acetate resin adhesive is large, dust is hardly generated but the adsorption performance is lowered. Therefore, the blending ratio is made appropriate according to the use.

As shown in Figure 2, for example, starch-based flour paste and pulverized coal are quickly mixed and stirred with a mixer such as a ribbon mixer or a concrete mixer, and the surface of the pulverized coal is covered with starch paste and then dried. Starch coated pulverized coal.

Starch flour paste is, for example, dissolved in a ratio of 5 to 12 weight of water to 1 weight of flour and then gelatinized by adding 1 to 2 weight of 20% sodium hydroxide solution or gelatinized by heating to 80 degrees It is a thing.

The mixing ratio is 3 to 10 weights of pulverized coal per 1 weight of starch wheat flour paste, preferably 4 to 6 weights. The starch paste raw material is wheat flour, corn starch, rice flour, potato starch, tapioca and the like, and any raw material may be used as long as it is gelatinized.

Since the surface-treated pulverized coal does not generate dust and is not soiled like pulverized coal, it can be enclosed in a non-woven fabric and used for a wide range of applications. As shown in FIG. 4, vinyl-based resin-coated pulverized coal or starch-coated pulverized coal was divided into a non-woven fabric sheet, divided and sealed into a non-woven fabric sheet containing pulverized coal. By dividing and enclosing, the movement of the surface-treated pulverized coal is limited to the inside of the partition and is kept at a constant thickness.

The nonwoven fabric has heat sealability, and the mesh is preferably about 1 micron or less.

The invention's effect

Although charcoal has an excellent function, it has few uses because it becomes dirty. In particular, pulverized coal has a limited use because it is dirty and dirty.

The surface-treated pulverized coal with resin or starch bonded to the surface of the present invention is the property of the material with the surface bonded, and it is hard to get dirty and has high strength and is inexpensive, so it can be used in many industrial fields. It is.

Furthermore, it has been difficult to produce concrete containing 3% by weight or more of pulverized coal in the past, but vinyl-based resin-coated pulverized coal does not inhibit the hydration reaction because the surface properties change to vinyl-based resin, and 70% or more The concrete which has the function of charcoal can be constructed in various places.

Industrial application fields

Charcoal molded products including concrete having deodorant, health, freshness retention, sugar content improvement, air purification, water purification, and materials thereof.

Bedding and personal items to maintain health using non-woven sheets containing pulverized coal, containers for maintaining freshness and improving sugar content with non-woven sheets containing pulverized coal inside containers, deodorant-related products using non-woven sheets containing pulverized coal, non-woven fabric containing pulverized coal It can be used for humidity control products using sheets.

  Production process diagram of vinyl-based resin coated pulverized coal   Manufacturing process diagram of starch paste coated pulverized coal   Manufacturing process diagram of cement molding containing vinyl resin coating pulverized coal   Plan view and sectional view of non-woven fabric sheet divided and encapsulated with pulverized coal

Explanation of symbols

1 Surface-treated pulverized coal 2 Non-woven fabric 3 Sealed part

Claims (4)

Emulsion vinyl acetate resin adhesive, emulsion vinyl urethane resin adhesive, polyvinyl alcohol water-soluble adhesive selected from the group consisting of a single or a plurality of adhesives and water, after mixing and kneading with pulverized coal, A vinyl resin-coated pulverized coal, the surface of which is obtained by unconsolidation and drying, and has the properties of a vinyl resin. After kneading with pulverized coal, obtained by adding one or more adhesives selected from the group consisting of starch-based adhesives such as wheat flour, corn starch, tapioca, potato starch, and rice flour and water, and then drying them unconsolidated In addition, starch-coating coal with the surface having the property of starch. A cement molded product containing pulverized coal obtained by mixing cement with the vinyl resin-coated pulverized coal according to claim 1. A nonwoven fabric sheet in which the vinyl-based resin coated pulverized coal of claim 1 or the starch coated pulverized coal of claim 2 is enclosed in a nonwoven fabric partitioned into small chambers.

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