KR970070342A - Organic / inorganic composite board for double floorboards and manufacturing method thereof - Google Patents

Abstract

The novolac phenol resin, which is a fine powder containing no moisture and a hardener added thereto, is dry-mixed with a paper sludge sufficiently dehydrated, dried and pulverized, and the mixture is preliminarily pressed in a plate form using a preliminary press The organic / inorganic hybrid board for double floorboards manufactured by heating and pressing using a high pressure hot press has excellent strength, flame retardancy, processability and water resistance as compared with products using particle boards. It is lightweight , Which is superior in workability, strength, heat insulation and dustiness, is lighter than steel products, has excellent strength and workability, and is made of natural wood textures derived from wood fiber contained in paper sludge and cement concrete Not only does it offer a consistent product reduction, but it also manufactures waste by recycling it Other manufacturing the double flooring products cheaper than the possible.

Description

Organic / inorganic composite board for double floorboards and manufacturing method thereof

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Claims (9)

Dry blending the paper sludge sufficiently dry, pulverized, and novolak phenol resin, which is a fine powder containing no moisture and added with a curing agent, using a mixer; Pre-pressurizing the mixture into a plate using a pre-press press; Molding by heating and pressing using a high-pressure hot press; Inorganic composite board for a double floorboard. The method according to claim 1, further comprising a step of adding a reinforcing agent to reinforce the strength of the paper sludge sufficiently dehydrated, dried and pulverized as described above. The method of claim 1, wherein the heating and pressing step is performed while alternately pressing and depressurizing the thermoforming process at a curing temperature of 160 to 200 占 폚 and a pressure of 0 to 70 kgf / cm2, Wherein the inorganic filler is formed while allowing the inorganic filler to be mixed with the inorganic filler. The method of claim 1, wherein the organic-inorganic hybrid board for a double floorboard comprises a substrate having a density of 1.1 to 1.8 g / cm 3 so as to be used as a substrate for a double floor board. The organic / inorganic composite board for a double floorboard according to claim 1, wherein the organic / inorganic hybrid board for a double floor board comprises 48 to 83% by weight of the paper sludge, 15 to 40% by weight of a novolak phenol resin of the fine powder, and 0.5 to 3.0% Method for manufacturing organic / inorganic composite board for floorboards. The method of claim 1, wherein the organic / inorganic composite board for a double floorboard comprises 48 to 83% by weight of the paper sludge, 15 to 40% by weight of a novolak phenol resin as the fine powder, 0.5 to 3.0% by weight of the curing agent, By weight to 10% by weight based on the total weight of the mixed board. The method according to claim 1, wherein the paper sludge is dried and pulverized to a moisture content of 2 to 5% by weight and a particle size of 0.5 mm, comprising 5 to 40% by weight of ash, 60 to 95% (EN) METHOD FOR MANUFACTURING ORGANIC - The method for manufacturing a composite board for organic / inorganic composite substrate for a double floorboard according to claim 1, wherein the curing agent is selected from the group consisting of sodium hydroxide, hexamethylenetetramine, potassium hydroxide, and mixtures thereof. The reinforcing material according to claim 2, wherein the reinforcing material is selected from the group consisting of a polymer fiber, a cellulose fiber, a glass fiber, a glass fiber net, and a mixture thereof, and the amount thereof is 0.5 to 10 wt% Wherein the board is inserted within one to three sheets per one board. ※ Note: It is disclosed by the contents of the first application.