JP2509878B2 - Composite of charcoal and polymer and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention improves the strength and machinability of charcoal by immobilizing the charcoal particles on the surface and inside of charcoal with a polymer, and can be used as a new and useful processing material. The present invention relates to a composite of charcoal and a polymer, and a method for producing the same.

[0002]

2. Description of the Related Art Charcoal has been widely and easily used in places where it has been used. For example, it is used as a fuel for domestic cooking, boiling water, roasting, heating, drying, etc., and is also used as a filter and deodorant for drinking water by utilizing its adsorptivity. It is used in various fields such as painting materials.

However, since the physical properties of charcoal are generally weak in physical strength, they have a peculiar structure that they are easily broken and cracked, so that their original form in civil engineering, architecture, art, etc. It was impossible to use as a material.

[0004]

DISCLOSURE OF THE INVENTION The present invention dramatically improves the physical strength of charcoal and provides it as a processing material for civil engineering, construction, arts, processed products, etc. while maintaining the characteristics of the charcoal. The present invention is intended to obtain a charcoal-polymer composite and a method for producing the same.

[0005]

The present invention has been made in view of the above-mentioned viewpoints, and is a composite of charcoal and a polymer, wherein a continuous layer of a cured polymer is formed in the void of the charcoal, and The air in the void inside the charcoal is sucked by the depressurization-pressurization method, the monomer liquid or the polymer liquid is injected into the depressurized void, and the solvent is then released. Another object of the present invention is to provide a method for producing a composite of charcoal and a polymer, which is produced by forming a continuous layer of a cured polymer.

[0006]

OPERATION AND EXAMPLES Hereinafter, the present invention will be specifically described based on examples. Example 1 About 1 mmHg to 20 mmH of charcoal was prepared by the depressurization-pressurization method.
g under reduced pressure for about 0.5 to 2 hours to suck air in the voids inside the charcoal, and subsequently, under normal pressure, about 0.5% of a polymerization initiator such as benzoyl peroxide (BPO). ) -Containing acrylic monomer is immersed in a solvent, for example, a solution prepared by dissolving 90% methyl alcohol (MMA) in methyl alcohol for about 2 to 20 hours to inject the solution into the void of charcoal. . After that, the solvent is diffused and removed in advance in the atmosphere in accordance with a conventional method to prevent danger. After that, it is wrapped with an aluminum foil or a metal plate so that the solution injected inside is not lost. It was heated at about 70 ° C. or higher for about 5 to 10 hours to form and cure a continuous layer of polymethylmethacrylate polymer in charcoal to obtain a charcoal-polymer composite. The polymer content is usually about 50% to 30%, but the content can be appropriately selected. The longitudinal compressive strength of the composite thus produced was about 20 times that of charcoal.

Example 2 Charcoal was applied to a pressure of about 1 mmHg to 20 mmH by a pressure-pressurization method.
g under reduced pressure for about 0.5 to 2 hours to suck air in the voids inside the charcoal, and subsequently, under normal pressure, a polyester, epoxy resin or regenerated containing about 10% to 20% of a curing agent. A polymer resin or the like is dipped in a solvent, for example, a solution of 90% methyl alcohol solution of methyl methacrylate (MMA) dissolved in the solution for about 2 to 20 hours, and the solution is injected into the voids of the charcoal. After that, the solvent is diffused and removed in advance in the atmosphere in accordance with a conventional method to prevent danger. After that, it is wrapped with an aluminum foil or a metal plate so that the solution injected inside is not lost. About 9
The polymer was resinified in the charcoal by heating and curing at 0 ° C. for about 1 to 5 hours to form a continuous layer of the cured polymer to obtain a charcoal-polymer composite. The polymer content is usually about 50% to 30%, but the content can be appropriately selected. The longitudinal compressive strength of the composite thus produced was about 20 times that of charcoal.

[0008]

As is apparent from the above description, according to the present invention, it is possible to improve the strength and cutting workability of charcoal while keeping the original shape of charcoal, and thus the raw material thereof. The wood grain can be used as it is, and the charcoal characteristics such as black body radiation, electromagnetic wave shielding and high durability can be retained, and it can be effectively used as a processing material for civil engineering, architecture, art, processed products, etc. .

Claims (2)

(57) [Claims] 1. A charcoal-polymer composite comprising a continuous layer of hardened polymer formed within the voids of the charcoal. 2. A vacuum-pressurization method is used to suck air in the voids inside the charcoal, and a monomer liquid or a polymer liquid is injected into the vacuum voids to diffuse the solvent, and the solvent is lapped and polymerized by heating. The method for producing a composite of charcoal and a polymer is characterized by forming a continuous layer of a cured polymer in the voids.