KR20090095991A - Panels or blocks for interior or exterior construction and a method of manufacturing the same - Google Patents

Abstract

An internal and external panel or block for the construction and a manufacturing method thereof is provided to show excellent insulation effect, fire-retardant and sound transmission loss to be used for an internal wall, an exterior wall, a building layer and a partition. A manufacturing method of an internal and external panel or block for the construction comprises following steps. The material mixture is made by mixing fine chaff of 20~90 weight% with loess, hard charcoal powder or the mixture of 10~80 weight. The incombustible adhesive mixture is made of sodium silicate solution, aluminum hydroxide, and micronized silica at the weight ratio of 6~8 : 1~3 : 1~2. The incombustible adhesive mixture of 20~100 weight% based on the weight of the material mixture is added and injected into a mold and then it is compressed and dried without heating.

Description

Panels or blocks for interior or exterior construction and a method of manufacturing the same

The present invention relates to a building interior and exterior panels or blocks, and to a method of manufacturing the same, and more specifically, as an environmentally friendly natural material, using chaff and ocher having excellent fire retardant and soundproofing as main ingredients, and using an adhesive that is harmless to the environment. Of course, the interior and exterior panels or blocks for building and manufacturing methods that can be widely used in interior and exterior walls, intergenerational walls, partition walls of buildings as well as excellent fire and sound insulation performance as well as easy and economical construction. In addition, the present invention relates to providing a building interior and exterior panels and blocks that can achieve aromatherapy effect by mixing a natural fragrance in a certain ratio.

The materials that have been used to construct exterior walls, interior walls, and inter-walls of buildings in the past include styrofoam sandwich panels, concrete blocks, concrete panels, wooden plywood, medium density fiber board (MDF), gypsum board, and the like. Most of them do not provide structural strength and insulation effect, so most of them are made of glass wool, rock wool, etc., built with external panels such as metal, stone, glass, or styrofoam between wall panels for insulation. Or it has been used by fixing the gypsum board on the outer surface of the styrofoam after fixing using an adhesive on the panel surface.

However, the construction of separate reinforcement and insulation for strength reinforcement and insulation was cumbersome and uneconomical, and these conventional panels had the problem of causing environmental pollution at the manufacturing stage and disposal, especially in the case of styrofoam, lightweight and inexpensive. However, there is a problem in that it is difficult to extinguish the fire due to the flammable gas generated in the fire.

Therefore, instead of using styrofoam on the ceiling or wall of an apartment or building, it forms a urethane layer by foaming rigid urethane and finishes it with gypsum board, panel, or ocher layer. Although the construction method for heat insulation, waterproofing and soundproofing is disclosed in Korean Patent Laid-Open Publication No. 2003-45890 (published on June 12, 2003), in this case, the surface of the foamed urethane layer is uneven, and thus the space between the finishing layer It is difficult to maintain the airtightness of the thermal insulation and waterproof structure due to the gaps generated in the gap, and even when the surface layer evenly, there was a problem of poor workability.

In addition, urethane panels are used for the insulation and waterproof effect, or glass fiber panels which do not burn as a mineral material and do not generate toxic gases in the fire are used, but these are not preferable in terms of economics.

Therefore, there has been a demand for a building panel utilizing natural resources that overcomes the problems of the conventional building panel and not only cause environmental pollution during manufacturing or disposal, but also can promote economics. Patent No. 186715 (registered Dec. 29, 1998) is a composition for preparing insulating materials containing chaff or rice straw, which contains 35-80% by weight of chaff, rice straw or a mixture thereof and polyvinyl chloride, polyvinylacetate, polyacrylamide and the like. A composition consisting of 20-65% by weight of selected binders is disclosed, and Korean Patent No. 231351 (registered on August 28, 1999) discloses a "building insulation that utilizes waste resources such as stems, husks, sawdust and waste paper of grains. A sound-absorbing flame retardant panel and a method of manufacturing the same ", wherein the weight ratio of chaff, straw, rice straw, barley straw, mixture of one or more of one or more of sawdust, adhesive 1, ammonium phosphate 1, and ocher or sato 1-2 Disclosed is a panel obtained by placing the blended formulation in a press and hot pressing at 100 ° C. for 5 minutes in a compressed state, and a method of manufacturing the same.

However, the former insulation lining material has the limitation that it may cause environmental problems by using a flame retardant but relatively toxic polyvinyl chloride as a binder and disadvantage in terms of cost. The latter panel is a glue, urea or Although melamine resin was used, the adhesive had to use a large amount of more than the same amount as the natural material in order to firmly combine natural materials such as rice husk, straw, sawdust, it is not only uneconomical, but also can cause the overall effect of the panel.

In addition, Korean Patent No. 557705 (registered on Feb. 27, 2006) adds a mixture (A) in which sodium silicate is added to a mixed container and carboxymethyl cellulose is added at a temperature of 80 to 90 ° C. Chaff obtained by mixing methyl cellulose and ocher with the mixture (B) mixed at 80-90 ° C., and then injecting it at a high pressure into the mold and drying in a drying furnace at 150-220 ° C. and 100-120 ° C. for 2 to 3 hours. The soundproof and non-combustible built-in board using straw was disclosed, but according to this, heat must be continuously applied in the raw material mixing step and the drying step, and high pressure is required in the molding step, which is cumbersome in the process execution and uneconomical in terms of manufacturing cost.

Therefore, if a wall panel or block can be easily installed on the wall and can be constructed with non-combustible, soundproof, insulated, and eco-friendly materials, wall construction and environmental protection would be highly desirable. I'm looking forward to it.

The present invention is an environmentally friendly natural material, the main raw material of chaff and ocher, excellent in non-combustible and soundproofing effect, using an adhesive that is harmless to the environment, as well as excellent thermal insulation and fireproof and soundproof performance as well as easy construction and economical An object of the present invention is to provide an interior / exterior panel or block for building that can be widely used for interior and exterior walls, intergenerational walls, partition walls, and manufacturing methods thereof.

It is also an object of the present invention to provide a very economical method for producing a building interior or exterior panel or block having excellent strength and adhesion without heating the raw material mixture using a nonflammable adhesive.

It is another object of the present invention to provide an interior and exterior panel and block for building that can also achieve aromatherapy effect to revitalize tired and tired mind and body by mixing a natural fragrance when mixing raw materials.

Building interior and exterior panels or blocks of the present invention for achieving the above object is a liquid silicic acid in a raw material mixture of 20 to 90% by weight of crushed chaff and 10 to 80% by weight of ocher, charcoal powder or a mixture thereof The non-flammable adhesive mixture containing sodium, aluminum hydroxide, and fine powder silica in a weight ratio of 6 to 8: 1 to 3: 1 to 2 was added to the mold by adding 20 to 100% by weight based on the weight of the raw material mixture. It is obtained by pressing and drying without heating.

The panel or block of the present invention is characterized in that it further comprises 2 to 10% by weight of natural fragrance, based on the total weight of the raw material mixture and the adhesive mixture, the natural fragrance is rosemary, lavender, peppermint, cypress, cypress Leaves or stems, mugwort, pine needles, chrysanthemum, fennel, etc. include various herbs and tree scents known to relieve fatigue of the human body, clear the mind, improve concentration and memory, and vitalize the mind and body.

In the above, chaff is used to crush the size of 1/5 to 1/2, and when the chaff is carbonized by direct carbonization at a temperature of 100 ~ 300 ℃ and crushed when used, the structure of the panel or block is more dense and the strength is also increased desirable.

The panel of the present invention can be used as interior or exterior building materials or insulation, tiles, etc., can be finished by applying a known exterior panel or coating paint or wallpaper over the panel of the present invention.

In addition, the manufacturing method of the building interior and exterior panels or blocks of the present invention

A raw material mixture is prepared by mixing 20 to 90% by weight of chaff ground to 1/5 to 1/2 size with 10 to 80% by weight of ocher, charcoal powder or a mixture thereof.

A non-flammable adhesive mixture obtained by mixing liquid sodium silicate, aluminum hydroxide and fine powder silica in a weight ratio of 6 to 8: 1 to 3: 1 to 2 is added by mixing 20 to 100% by weight based on the weight of the raw material mixture,

After the mixture of the raw material mixture and the adhesive mixture is put into a panel or block-shaped molding die and pressed without heating,

It consists of drying the crimped panel or block.

The method of the present invention is also characterized in that it further comprises 2 to 10% by weight of natural fragrance, based on the weight of the total mixture in the step of adding and mixing the adhesive mixture to the raw material mixture, the natural flavor as rosemary , Lavender, peppermint, cypress, cypress leaves or stems, wormwood, pine needles, chrysanthemums, fennel, etc., which are known to relieve fatigue and clear the mind, improve concentration and memory, and revitalize the mind and body. Herbal and tree flavors.

The manufacturing method of the present invention will be described in detail for each step as follows.

First, the first step is to prepare a raw material mixture by mixing the chaff crushed to 1/5 to 1/2 the size with ocher and charcoal powder.

Chaff has been used mainly as a raw material for compost or feed as rice husk, but the present inventors pay attention to the fact that chaff contains a silicon component and is an environmentally friendly natural material having excellent flame retardancy or nonflammability and excellent sound absorption and insulation effect due to voids. Thus, chaff was used as a main raw material in the manufacture of the panel or the block of the present invention.

In the present invention, chaff is used to grind the chaff to 1/5 to 1/2 size, which is because when the chaff is used without grinding the chaff, there is a problem in that the adhesion efficiency is lowered, and when the grinding is smaller than the size range, the pores are crushed. It becomes so fine that it is not preferable in terms of sound absorption and adiabatic effect.

Ocher serves as an adhesive to help the binding of the raw material mixture, and does not burn at high temperatures, so there is no problem such as the generation of toxic gases in the fire, and emits far infrared rays and has a beneficial effect on the human body. In addition, it has a beneficial effect such as heat radiation, thermal insulation, antibacterial, antifungal, as well as far infrared radiation.

In addition, the charcoal has the effect of adsorbing harmful gases in the building and emits far infrared rays, in the present invention, it is preferable to use the pulverized to 1 ~ 5mm size.

The mixing ratio of the chaff, ocher and charcoal powder is to optimize the ratio of the ocher and charcoal while maximizing the content of the chaff, which has excellent thermal insulation and sound absorption effect and economic efficiency, to optimize the bonding strength of the entire mixture and the function as interior and exterior materials for construction.

In the second step of the present invention, 20 to 100% by weight of the non-flammable adhesive mixture containing the liquid sodium silicate, aluminum hydroxide and fine powder silica in a weight ratio of 6 to 8: 1 to 3: 1 to 2 is added based on the weight of the raw material mixture. By mixing.

The liquid sodium silicate (Na ₂ O · nSiO ₂ · αH ₂ O) is a colorless, non-toxic transparent liquid, has excellent binding properties, heat resistance, film formation and adsorption properties, and is a non-flammable material that does not generate toxic gases in the event of a fire. It serves as an adhesive and a nonflammable material to bind the raw material mixture made in the process.

Aluminum hydroxide is a non-toxic material having excellent adhesion and heat resistance, and serves to further enhance the incombustibility of sodium silicate.

In addition, micronized silica is a non-toxic material that stably binds solvents, and has heat resistance, film formation, and adsorption property, and is combined with liquid sodium silicate and aluminum hydroxide to form voids in the adhesive mixture structure to have sound absorption and heat insulating properties. It also helps to increase incombustibility.

The present invention does not burn the panel or block even when a fire occurs due to the adhesive mixture, only the molten crystalline remains on the surface of the panel (see the picture of Figures 2 to 4).

In the case of using only sodium silicate powder according to the prior art (domestic patent 557705), it is necessary to continuously heat or pressurize the raw material during mixing and molding, but according to the present invention, liquid sodium silicate is mixed with aluminum hydroxide and fine powder silica. When used as a mixture, a panel or block having excellent strength and adhesion can be obtained without applying heat in the raw material mixing step and the forming step for manufacturing the panel or block. In addition, even if a fire occurs when using the adhesive mixture of the present invention it is possible to obtain a less smoke advantage.

The adhesive mixture is mixed by adding 20 to 100% by weight based on the weight of the raw material mixture, the blending ratio of the adhesive mixture is preferably added to about 20 to 50% by weight of the raw material mixture in the case of a block, In the case of 50 to 100% by weight is preferably added to mix.

After mixing the raw material mixture and the adhesive mixture as described above, the third step of compressing the mixture without putting the mixture into the mold is heated, and it is enough to press the mixture for about 3 to 15 minutes, during which the adhesive mixture is The raw material mixture is firmly bound.

The molding thus obtained is sent to a warm air drying chamber at 40 to 60 ° C. to be dried, and after the drying process, a panel or block for building interior and exterior of the present invention is obtained.

According to the present invention, as an environmentally friendly natural material, the main raw material is chaff and ocher, which have excellent non-combustible and soundproofing effects, and use an adhesive that is harmless to the environment. It will be possible to provide interior and exterior panels and blocks for construction.

In addition, according to the present invention it is possible to provide an environmentally friendly building interior and exterior panels and blocks that can be widely used in the interior and exterior walls of buildings, intergenerational walls, partition walls.

In addition, according to the present invention, by mixing a certain amount of natural fragrance when blending raw materials, it is possible to achieve aromatherapy (aroma therapy) effect.

Embodiments of the present invention are as follows, it will be apparent to those skilled in the art that the scope of the present invention is not limited thereto.

Example 1

First, 7.0 kg of dried rice husk was crushed to a size of about 1/4 in a grinder to prepare chaff powder, and 2.0 kg of ocher and 1.0 kg of crushed charcoal powder, which was ground to a size of about 3 mm, were weighed and mixed with the chaff powder to prepare a raw material mixture. Ready.

To this, an adhesive mixture obtained by mixing 7.0 kg of liquid sodium silicate, 2.0 kg of aluminum hydroxide and 1.0 kg of fine powder silica was added and mixed evenly in a mixer.

Then, it was put into a panel-shaped mold and pressed for 3 minutes without heating.

Thereafter, the molded article pressed in the form of a panel was dried in a hot air drying chamber at 50 ° C., whereby the panel of the present invention was obtained as shown in FIG. 1.

In order to test the incombustibility of the panel thus obtained, a torch flame of about 1000 ° C. was applied to the panel surface as shown in FIG. 2 and heated for about 20 minutes.

As a result, as shown in Figures 3 and 4 it can be confirmed that only crystalline sodium silicate is vitrified on the surface, the panel itself was not burned and no toxic gas was generated.

The size and shape of the panel of the present invention shown in the accompanying drawings is only one embodiment of the present invention, the shape and size, thickness and the like can be arbitrarily adjusted.

Example 2

In the same manner as in Example 1, 9.0kg of dried chaff crushed to about 1/4 size in a grinder to prepare chaff powder, 1.0kg of crushed charcoal powder of about 3mm size was measured and mixed with the chaff powder Was used as the raw material mixture.

As a result of the test for incombustibility, the same result as in Example 1 was obtained.

Example 3

In the same manner as in Example 1, 1.0 kg of charcoal chaff obtained by direct firing with a fire of 150 ° C. in a heating chamber, and then burning and then carbonizing by cutting off air, together with 8.0 kg of dried chaff as in Example 1, 1.0 kg of ocher powder It was mixed with and used as a raw material mixture.

As a result of the test for incombustibility, the same result as in Example 1 was obtained, and the tissue was more dense and the strength was increased.

Example 4

7.0 kg of dried rice husk was ground to a size of about 1/4 in a mill to prepare chaff powder, and 7.0 kg of ocher was weighed and mixed with the rice husk powder to prepare a raw material mixture 14.0 kg.

To this, 6.0 kg of the adhesive mixture obtained by mixing 4.0 kg of liquid sodium silicate, 1.5 kg of aluminum hydroxide and 0.5 kg of fine powder silica were added and mixed evenly in a mixer.

Then, it was put into a mold in the form of a block and pressed for 3 minutes without heating.

The compressed blocks were then dried in a hot drying chamber at 50 ° C. to obtain a block of the present invention.

The blocks thus obtained are suitable for use for partitions, and the test results for the incombustibility of the blocks yielded the same results as in Example 1.

Example 5

In the same manner as in Example 4, 24.0 kg of the raw material mixture of 4.8 kg of dried chaff and 19.2 kg of ocher was evenly mixed with 6.0 kg of the adhesive mixture.

The blocks thus obtained are suitable for use for exterior walls, and the test results for the incombustibility of the blocks yielded the same results as in Example 1.

Example 6

The same procedure as in Example 1 was conducted except that 1.0 kg of fennel was ground finely before mixing the raw material mixture and the adhesive mixture in a mixer.

The panels thus obtained were installed on one wall of a 10-square-meter room, and 10 men and 10 women were closed and rested for 1 hour in the room. The result was that we could experience a clearing change.

1 is a photograph showing an embodiment of the interior and exterior panels for building construction of the present invention.

Figure 2 is a photograph showing a state of heating the panel surface of the present invention with a torch.

3 and 4 are photographs showing the state after heating the panel surface of the present invention with a torch.

Claims (4)

To a raw material mixture of 20 to 90% by weight of crushed rice hulls and 10 to 80% by weight of ocher, charcoal powder or a mixture thereof, liquid sodium silicate, aluminum hydroxide and fine powder silica are added in a range of 6 to 8: 1 to 3: 1 to 2 A non-flammable adhesive mixture mixed in a weight ratio of 20 to 100% by weight based on the weight of the raw material mixture is added to a panel or block-shaped molding die, and then obtained by pressing and drying without heating, the interior and exterior panels or blocks for construction. The building interior and exterior panels or blocks of claim 1, further comprising 2 to 10% by weight of natural fragrance, based on the total weight of the raw material mixture and the adhesive mixture. The interior and exterior panels for building according to claim 1 or 2, wherein the chaff is partially or entirely pulverized after being carbonized by direct fire at a temperature of 100 to 300 ° C. A raw material mixture is prepared by mixing 20 to 90% by weight of chaff ground to 1/5 to 1/2 size with 10 to 80% by weight of ocher, charcoal powder or a mixture thereof. A non-flammable adhesive mixture obtained by mixing liquid sodium silicate, aluminum hydroxide and fine powder silica in a weight ratio of 6 to 8: 1 to 3: 1 to 2 is added by mixing 20 to 100% by weight based on the weight of the raw material mixture, After the mixture of the raw material mixture and the adhesive mixture is put into a panel or block-shaped molding die and pressed without heating, Method for manufacturing a building interior and exterior panels or blocks consisting of drying the crimped panel or block.

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