KR20050051191A - Soundproof and fire-resisting interior board using chaff and straw - Google Patents

Abstract

The present invention relates to a soundproof and non-flammable interior board using chaff and straw, the mixture (A) in which sodium silicate is added to a mixing vessel and carboxymethylcellulose added at a temperature of 80 ~ 90 ℃, chaff, straw, methyl It is added to the mixture of cellulose and ocher or ceramic powder (B), mixed, and then injected into a mold under high pressure and aged in a drying furnace, followed by demolding.

While conventional gypsum boards and other inorganic boards are harmful to health and cause pollution, the soundproofing and non-combustible interior boards using chaff and straw of the present invention add 10-30% by weight of chaff and straw, which are environmentally friendly materials, and other loess Or by using ceramic powder is effective to lead a healthier and safer life.

Description

SOUNDPROOF AND FIRE-RESISTING INTERIOR BOARD USING CHAFF AND STRAW}

The present invention relates to a soundproof and non-flammable interior board using chaff and straw, the mixture (A) in which sodium silicate is added to a mixing vessel and carboxymethylcellulose added at a temperature of 80 ~ 90 ℃, chaff, straw, methyl It is added to the mixture of cellulose and ocher or ceramic powder (B), mixed, and then injected into a mold under high pressure and aged in a drying furnace, followed by demolding.

While conventional gypsum boards and other inorganic boards are harmful to health and cause pollution, the soundproofing and non-combustible interior boards using chaff and straw of the present invention add 10-30% by weight of chaff and straw, which are environmentally friendly materials, and other loess Or by using ceramic powder is effective to lead a healthier and safer life.

Gypsum board or other inorganic boards are widely used for building interior materials, especially reinforcing materials, soundproofing materials, non-combustible or flame retardant materials.

The gypsum board is satisfied with the basic conditions such as strength and soundproofing, but the material itself is a material that can cause pollution is harmful to the human body, environmentally problematic interior materials.

Therefore, in recent years, as a material that can replace such interior materials, new materials using ocher, rice husk, rice straw, etc., which are environmentally friendly ingredients, have emerged.

For example, Patent No. 186715 (registered Dec. 29, 1998) discloses a composition for preparing insulation containing chaff or rice straw, comprising 35 to 80% by weight of chaff, rice straw or a mixture thereof, polyvinyl chloride, polyvinylacetate, The composition consisting of 20 to 60% by weight of a binder selected from polyacrylamide and the like has been disclosed, and exhibits superior bending strength and compressive strength than conventional expanded polystyrene.

In addition, Korean Patent Laid-Open Publication No. 2000-44964 (published on July 15, 2000) discloses a variety of rice hulls which are crushed to a certain size, mixed with an adhesive, stirred, filled into a mold, and heated and compression molded at a constant pressure. The manufacturing method is disclosed, and Utility Model Registration No. 325933 (registered on August 28, 2003) discloses a heat insulating material composed of chaff, mother-of-pearl, loess or kaolin, and a water-soluble binder. To get the effect of health.

However, the existing interior material using such chaff and ocher has a limitation in the selection of the binder or binder using only flame retardant but relatively toxic PVC as a binder, and the mixing environment between components does not fit each other No physical properties were obtained, and it was disadvantageous in terms of price compared to the existing interior materials, which was very limited in use.

Therefore, the present invention was made in view of the above-mentioned conventional problems, and mixed by adding a mixture of carboxymethyl cellulose and chaff, straw, methyl cellulose and ocher or ceramic powder to sodium silicate, and then high-pressure injection into a mold and aged in a drying furnace. After demolding and finishing,

While conventional gypsum boards and other inorganic boards are harmful to health and cause pollution, the purpose of the present invention is to provide soundproof and non-combustible interior boards using chaff and straw of a new shape that can lead to eco-friendly, healthier and safer life. .

Hereinafter, the configuration of the present invention in more detail.

Soundproof and non-flammable interior board using chaff and straw of the present invention, the mixture (A) in which sodium silicate was added to a mixing vessel and carboxymethylcellulose was added at a temperature of 80 to 90 ° C, separately prepared chaff, straw, methyl cellulose and The mixture is added to a mixture (B) of ocher or ceramic powder, mixed, and then injected into a mold under high pressure and aged in a drying furnace, followed by demolding.

Here, it is preferable that the composition ratio of each said component makes 10 to 30 weight% of the said rice hull and a straw used as a buffer material, and makes the whole remainder 70 to 90 weight%.

Here, when the content of the chaff and straw is less than 10% by weight, the effect of the addition is not small to obtain an environment-friendly product, on the contrary, when it exceeds 30% by weight, the combination of the remaining binders is not suitable, which makes the molding of the product difficult. Not good.

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

EXAMPLE

100 g of sodium silicate is added to a mixing vessel, the temperature is raised to a temperature of 80 to 90 ° C., and 4 to 7 g of carboxymethyl cellulose (CMC) are gradually added thereto to obtain a mixture (A).

In another separately prepared container, rice husk and straw (10-30% by weight) were put into a mixture (B) in which 3-6 g of methyl cellulose (MC) and 10-30 g of ocher or ceramic powder were mixed while maintaining 80-90 ° C. The mixture (A) is added and thoroughly mixed.

Subsequently, the prepared mold (Steel standard) is injected at high pressure to close the cover, aged in a drying furnace (150-220 ° C. × 1-2 hours), and then the product is recovered from the mold, followed by secondary drying (100-120). ℃ 1 hour) to obtain a final product.

At this time, the finished final product should be 60-65% (35-40% of distillate) of the total weight of the first input, and the specific gravity of the product at this time was 0.85 ± 0.5.

The soundproof and non-combustible interior board using the chaff and straw of the present invention thus obtained serves as a sound insulation insulation material, which is a basic feature of building interior materials, and does not ignite during an initial fire and does not generate toxic gas during the initial fire. In terms of cost reduction and cost, it is the same or more economical than the conventional one, and environmentally friendly materials are incorporated as constituent materials to be environmentally friendly, and to ensure a healthy life due to the emission of ocher and other far infrared rays.

As described above, according to the present invention, a mixture of carboxymethyl cellulose and chaff, straw, methyl cellulose and ocher or ceramic powder is added to sodium silicate, mixed, and then injected into a mold under high pressure, aged in a drying furnace, and then demolded to complete. by doing,

Whereas conventional gypsum boards and other inorganic boards are harmful to health and cause pollution, the present invention is easy to decompose in water when disposed of after use and does not cause sediment and fermentation like compost does not harm the soil. At the same time, it can lead to a healthier and safer life and is expected to be used and applied in related fields.

Claims (2)

Sodium silicate was added to a mixing vessel, and the mixture (A) added with carboxymethyl cellulose at a temperature of 80 to 90 ° C. was added to a mixture (B) of separately prepared chaff, straw, methyl cellulose and ocher or ceramic powder, and mixed. Soundproof and non-combustible interior board using chaff and straw, characterized in that obtained by high-pressure injection into the mold and aged in a drying furnace, followed by demolding. The method of claim 1, The chaff and straw to 10 to 30% by weight, the soundproof and non-combustible interior board using chaff and straw, characterized in that the rest of the binder as 70 to 90% by weight.