KR101812111B1 - Eco-friendly building materials using perlite and the manufacturing method thereof - Google Patents

Abstract

The present invention relates to an eco-friendly building material using perlite manufactured by mixing a silicate-based adhesive including liquid sodium silicate to an inorganic material including perlite. The eco-friendly building material has an insulation effect, is light and durable and has less toxicity, thereby being capable of forming a pleasant indoor environment without emission of harmful environment materials.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eco-friendly building material using perlite,

The present invention relates to a building material mainly used as an interior finishing material. More particularly, the present invention relates to an inorganic material including pearlite, a silicate-based adhesive containing liquid sodium silicate and a functional mixture for emitting anion and far- The present invention relates to an eco-friendly building material using pearlite, which is effective, lightweight, durable and low in toxicity, and capable of providing a pleasant indoor environment without emission of harmful environmental substances, and a manufacturing method thereof.

In general, a board refers to a gypsum board used as a wall material and a text board used as a ceiling material, and is a building interior material mostly used in houses including apartments and general offices.

Conventionally, boards used as finishing materials for various buildings include cement board, gypsum board, and magnesium board. At this time, the cement board and the gypsum board are manufactured by mixing wood powder, sawdust, and a small amount of adhesive into cement and gypsum having adhesive properties. Since the cement board and the gypsum board contain a large amount of unsanitary components, The cement board and the gypsum board are being rejected.

In other words, the gypsum board and the text board are becoming the main cause of the indoor environmental pollution due to the indoor air pollution and the harmful gas generation, and recently, new diseases such as the sick house syndrome have appeared.

In recent years, there is a growing demand for eco-friendly building materials that can use environmentally friendly materials to pursue pleasant living spaces.

SUMMARY OF THE INVENTION The object of the present invention is to provide a silicate-based adhesive containing liquid sodium silicate in an inorganic material containing pearlite and a functional mixture which emits anion and far-infrared rays, Which is capable of forming a pleasant indoor environment without the emission of harmful environmental substances, and a method for manufacturing the environmentally friendly building material using pearlite.

According to the present invention, there is provided an eco-friendly building material using pearlite comprising 5 to 10% by weight of vermiculite having a particle size of 0.1 to 1 mm, 60 to 65% by weight of the pearlite having a particle size of 0.5 to 8 mm, An inorganic material comprising 5 to 10% by weight of an inorganic fiber comprising a mixture of fibers, mineral fibers and metal fibers; 1 to 3% by weight of activated diatomaceous earth having a particle size of 365 mesh or more, 1 to 2% by weight of a zeolite-based deodorant having a hydrophobically modified surface, 5 to 15% by weight of liquid sodium silicate, 2 to 4% 1 to 2% by weight of a mixed powder comprising at least one of the following materials: a starch, a starch, a starch, 1 to 2% by weight of solid minerals containing a solid mineral including bentonite, bentonite, calcium carbonate and talc and having a hydrophobic or hydrophilic property depending on the addition ratio of the constituents Based adhesive; A mineral ground powder including tourmaline, monazite, zeolite, and tungsten, which are minerals that generate anions, and an active loess powder that is activated by heating at 600 to 900 DEG C and then quenching at high temperature, 1 to 2% by weight of a functional mixture of flour and wood vinegar; And a magnesium reinforcing material for reinforcing the strength, wherein the inorganic material is formed by mixing the silicate-based adhesive, the functional mixture, and the magnesium reinforcement. The magnesium reinforcement is obtained by mixing the magnesium powder with the nano- And water, wherein the binder powder is at least one selected from the group consisting of loess, charcoal, tourmaline and fibrous materials, or a mixture thereof.

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According to another aspect of the present invention, there is provided a method of manufacturing an eco-friendly building material using pearlite, comprising the steps of: 5 to 10% by weight of vermiculite having a particle size of 0.1 to 1 mm, 60 to 65% by weight of pearlite having a particle size of 0.5 to 8 mm %, And an inorganic material comprising 5 to 10% by weight of an inorganic fiber comprising a mixture of glass fiber, mineral fiber and metal fiber; Wherein the inorganic material comprises 6 to 15 wt% of liquid sodium silicate, 2 to 4 wt% of silica sol, 1 to 3 wt% of activated diatomaceous earth having a particle size of 365 mesh or more, 1 to 2 wt% of a zeolite- 1 to 2% by weight of a mixed powder comprising at least one of water, charcoal, tourmaline and fiber material, yeast composition, 1 to 2% by weight of a mixture of natural rubber latex and aqueous starch solution, sericite, tourmaline, amethyst Based adhesive comprising 1 to 2% by weight of a functional mineral solids comprising Amethyst, Quartzite, Bentonite, Calcium Carbonate and Talc. ; A mineral powder containing minerals including tourmaline, monazite, zeolite, and male ceramics as a mixture of the inorganic material and the silicate-based adhesive; and pure ground yellow earth by heating at 600 to 900 DEG C, followed by quenching at high temperature A functional mixture mixing step of mixing 1 to 2% by weight of a functional mixture consisting of an active loess powder which is activated by a process and emits far-infrared rays and a wood vinegar; A magnesium powder and a binder powder mixing the magnesium powder and the nano-sized binder powder; and a press-molding step of press-molding a mixture of the inorganic material, the silicate-based adhesive, the functional mixture, and the magnesium powder and the binder powder, .

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According to the eco-friendly building material using perlite according to the present invention and the manufacturing method thereof, an eco-friendly silicate-based adhesive agent and a functional mixture for emitting anion and far-infrared rays are mixed with an inorganic material including porous pearlite, By producing the building material, it is possible to create a pleasant indoor environment without discharging harmful environmental substances.

1 is a flowchart illustrating a method of manufacturing an eco-friendly building material using pearlite according to an embodiment of the present invention.
2 is a flowchart illustrating a method of manufacturing an eco-friendly building material using pearlite according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The eco-friendly building material using pearlite according to the present invention comprises an inorganic material including pearlite, a silicate-based adhesive containing liquid sodium silicate and mixed with the inorganic material, and a functional mixture for emitting anion and far-infrared rays.

Wherein the inorganic material comprises 5 to 10% by weight of vermiculite having a particle size of 0.1 to 1 mm, 60 to 65% by weight of the pearlite having a particle size of 0.5 to 8 mm and an inorganic fiber 5 comprising a mixture of glass fiber, By weight to 10% by weight.

The vermiculite is composed of SiO ₂ , Al ₂ O ₃ , K ₂ O, Fe ₂ O ₃ , MgO, CaO, water and other minor constituents, and is usually called mica stone. When the vermiculite is rapidly heated to a high temperature of 300 ° C and then foamed, the moisture in the crystal lattice is vaporized and transformed into steam to form pores. The lattice layer swells and expands, and the water vapor escapes to the outside to form airways Thereby forming a porous vermiculite material.

The foamed vermiculite is a non-combustible material that does not ignite because it is an inorganic mineral. Therefore, it does not generate toxic gas in case of fire. It is a porous material and emits far infrared rays and negative ions which are excellent in sound absorption, deodorization, Is known to be superior.

 The pH of the vermiculite is about 7 and is a sterile material of metallic luster. It has excellent water retention, bobbing and cation exchange ability and is used for construction and industrial materials due to its light and useful properties. In addition, it is used in various applications such as fire-proof incombustible paste, coating material and filler in powder form.

On the other hand, pearlite is composed of SiO ₂ , Al ₂ O ₃ , K ₂ O, Na ₂ O and other trace elements. It is produced by foaming at high temperature a mineral called obsidian which is formed when volcanic rock is rapidly cooled. vermiculite) is similar in structure, properties and uses. Particularly, the water contained in pearlite evaporates and swells when heated to high temperature, resulting in fine porous white mineral, acidity neutral, and little nutrient content.

The pollution-free pearlite and vermiculite are three-layer structured type mica mineral which contains moisture between the layers and dehydration occurs between the layers when heated. As a result, it becomes peeled and expanded, and plays a role of numerous porous insulation insulating minerals.

The pearlite has a porosity of about 48% and a specific surface area of 1.1005 m ² / g, which is excellent in insulation and absorption effect by porosity. Particularly, pearlite has a specific gravity of 0.15 to 0.25, so that the board can be made lighter. It is preferable that the pearlite has a particle size of 0.5 to 8 mm and a tensile strength of 0.15 to 0.18 kg / 100 ??

In the present invention, a mixture in which the weight percentage of pearlite, vermiculite and inorganic fibers is adjusted is used as an inorganic material.

At this time, it is preferable to use 70 to 90% by weight of pearlite and 5 to 20% by weight of vermiculite.

The inorganic fiber composed of a mixture of glass fiber, mineral fiber and metal fiber has the effect of strengthening the tensile strength of the building material and preventing it from being broken easily. It is preferable to use inorganic fibers as short fibers in a cut state so as to be approximately 1 to 6 cm.

If such an inorganic fiber is contained in an amount of less than 5% by weight, the effect of imparting resistance to vertical drag, horizontal drag or the like will be insufficient. If it exceeds 10% by weight, 5 to 10% by weight.

On the other hand, the eco-friendly building material using pearlite according to the present invention is characterized in that it is manufactured by mixing a silicate-based adhesive to an inorganic material which is a mixture in which the weight percentage of vermiculite, pearlite and inorganic fiber is adjusted.

The silicate-based adhesive comprises 5 to 15 wt% of liquid sodium silicate, 2 to 4 wt% of silica sol, 1 to 3 wt% of activated diatomaceous earth having a particle size of 365 mesh or more, 1 to 2 wt% of a zeolite- 1 to 2% by weight of a mixture of a mixture of a yeast composition, a natural rubber latex and an aqueous starch solution, 1 to 2% by weight of a mixed powder comprising at least one of charcoal, tourmaline, fiber material and anionic material, sericite, Tourmaline, And 1 to 2% by weight of solid minerals including amethyst, elvanite, bentonite, calcium carbonate and talc.

The silicate-based adhesive used for eco-friendly building materials using pearlite according to the present invention is a natural adhesive mainly composed of a sodium silicate compound based on a mixture of liquid sodium silicate (Na ₂ O.nSiO ₂ .xH ₂ O) and silica sol do.

The liquid sodium silicate (Na ₂ O.nSiO ₂ .xH ₂ O), which is used as the basic constituent of the silicate-based adhesive, is also called water glass and is a transparent solution showing the alkalinity of the viscous property. KSM1415 classifies Na ₂ O And SiO _{2 in} the molar ratio of 1: 2.064 to 4.300.

Silica sol is a viscous liquid material in which silicon dioxide (SiO ₂ ), which is called silica, forms a colloid state of anions in water. The silica sol is a mixture of sodium silicate (Na ₂ O.nSiO ₂ .xH ₂ O) (Na ₂ O.nSiO ₂ .xH ₂ O) with a very large amount of components of silicon dioxide, the liquid silica silicate (Na ₂ O.nSiO ₂ .xH ₂ O) is mixed with water to control the adhesiveness.

Liquid sodium silicate (Na ₂ O.nSiO ₂ .xH ₂ O) is used as an inorganic adhesive since it is solidified when water evaporates and has adhesiveness. However, sodium ion reacts with water or water in the air to generate sodium hydroxide So that the strength is drastically weakened.

That is, the silicate-based adhesive mainly composed of liquid sodium silicate (Na ₂ O.nSiO ₂ .xH ₂ O) is hydrophobic or hydrophilic depending on the proportion of the added material, and the hydrophobic silicate-based adhesive is used where waterproofing is required, The adhesive can be used where waterproofing is not required.

The silicate-based adhesive according to the present invention comprising a liquid sodium silicate compound as a main component comprises water as a solvent and has a heat resistance of 800 ° C, a pH of 11 to 12, a specific gravity of 1.3, a solid content of 32% , Boiling point of 100 to 110 캜, and freezing point of 0 캜.

The silicate-based adhesive according to the present invention is colorless, odorless and non-toxic, has the ability to restore the acidic soil to alkali, can be sealed for long-term storage, and has no change in physical properties upon freezing.

The silicate-based adhesive according to the present invention is a light brownish liquid which is dried at room temperature but thermally cures to a temperature of 180 ° C or higher to ensure water resistance. After curing, the silicate-

The silicate-based adhesive according to the present invention is a one-part type water-soluble environmentally friendly inorganic low-temperature firing ceramic resin, which is traditionally referred to as an inorganic-modified silicate ceramic resin and belongs to the silicate compound group.

The silicate-based adhesive according to the present invention is mainly composed of a silicate compound (CAS NO: 1344-09-8) and water (CAS NO: 7723-18-5), and reports serious adverse effects when exposed or inhaled or ingested Friendly adhesive that has no carcinogenicity.

It is also non-flammable, free of fire and explosion hazard, and non-volatile liquid. It is stable at room temperature and normal pressure, does not cause a polymerization reaction, and its environmental impact on the environment is extremely small due to the environmentally friendly physical properties of the inorganic compound.

If necessary, the silicate-based adhesive may further contain ingredients such as corn powder or wheat flour to improve the adhesive strength.

On the other hand, the functional mixture is a mixture of a mineral powder composed of minerals that generate anions and a loess powder that emits far infrared rays, or a powder mixture for functional purposes, which is a mixture of these, mixed with wood vinegar.

That is, the powdery material for the functionalities is preferably mixed with the mineral powder and the loess powder at a ratio of 2: 1, and the functional powder material and the vinegar solution are mixed at a ratio of about 3: 2.

The mineral powder is mixed in a weight ratio, and the tourmaline, monazite, zeolite, and male ceramics are mixed in a weight ratio of 3: 1 to 1: 3, and the mineral powder is used as a mineral which generates a large amount of anions, such as tolmalin, monazite, zeolite, 3: 1: 2 is preferable and it is more preferable to grind in a grinding apparatus and to have an average particle size of 100 to 200 mesh through a sieve.

The activated ocher powder is used as the ocher powder. The method of activating the ocher powder is a method in which pure ocher is heated at a high temperature of 600 ° C to 900 ° C and then sintered at high temperature, followed by quenching with water or air, It is preferable to have a particle size of 100 to 300 mesh. As described above, when the loess is heated at a high temperature, the microorganisms existing in the loess can be removed, and the effect of emitting far-infrared rays can be enhanced.

Wood vinegar refers to the removal of toxic and harmful substances by collecting smoke from the process of making charcoal from wood and aging it for 6 months or more.

 Generally, when a mineral such as pearlite is pulverized and foamed and mixed with a silicate-based adhesive, the weight may be reduced, but the strength may be weakened.

Accordingly, the eco-friendly building material using pearlite according to the present invention may further include a magnesium reinforcement for reinforcing the strength of the building material.

The magnesium reinforcement according to the present invention is prepared by mixing magnesium powder and magnesium powder in a ratio of 3: 2 to provide a binding property to the magnesium powder to enable firm bonding, and mixing the mixture with water.

When the ratio of magnesium powder is low, the strength is low and when the ratio of magnesium powder is high, the bonding property is low and it is not suitable for use as a building material such as a board.

Magnesium powder is a flame retardant material and has fire resistance, heat resistance and warming property, so it has a great effect of insulation, besides it has excellent strength and excellent thermal conductivity, so that excellent heating effect can be expected.

However, magnesium has a hardness of 2.6, which means that the binder is poor in adhesiveness, and a binder powder capable of compensating for such bonding is needed. At this time, it is preferable to use any one of yellow soil, charcoal, tourmaline, fiber material, and anion material or a mixture thereof as the binder powder.

Among the materials used as binding materials, far-infrared rays emitted from yellow clay in the case of yellow clay act to physiological action of cells, generate heat energy, release harmful substances, and smooth out metabolism.

On the other hand, tourmaline is purified in the best condition to the human body in a weak alkaline state at around pH 7.4 and emits anions having the same effect as natural ion water, and thus has a bioactive activity, a thermal effect, blood circulation, deodorization and antibacterial effect.

The fiber material in the binder is mineral fiber or vegetable fiber. It is rich in hygroscopicity and is stronger in wetting than when it is dry. It is suitable for use as a finishing material of a building. Effect.

In addition, a variety of anionic materials that generate far infrared rays or anions and have binding properties may be used as the binding material.

When the binder powder is filtered by using a mesh sieve, the particle size of the powder is too large and the bonding strength with the magnesium powder is decreased. Therefore, it is preferable to use the binder powder by pulverizing into nano-sized particles.

On the other hand, water is mixed in a weight ratio of 4: 6 to 6: 4 to the mixture of the magnesium powder and the binder powder. When the weight ratio of water is less than 4 or more than 6, the binding property of the binder is remarkably decreased. Therefore, the weight ratio of the mixture of magnesium powder and binder powder to water is preferably 5: 5.

FIG. 1 is a flowchart illustrating a method of manufacturing an eco-friendly building material using pearlite according to an embodiment of the present invention, and FIG. 2 is a flowchart illustrating a method of manufacturing eco-friendly building material using pearlite according to another embodiment of the present invention.

As shown in FIG. 1, the method of manufacturing an eco-friendly building material using perlite according to the present invention comprises the steps of mixing an inorganic material (S100), a silicate based adhesive (S200), a functional mixture (S300) Step S400.

In the inorganic material mixing step (SlOO), 5 to 10 wt% of vermiculite having a particle size of 0.1 to 1 mm, 60 to 65 wt% of the pearlite having a particle size of 0.5 to 8 mm and a mixture of glass fiber, mineral fiber and metal fiber And 5 to 10% by weight of the inorganic fibers are mixed.

Subsequently, in the silicate-based adhesive mixing step (S200), 6 to 15 wt% of liquid sodium silicate, 2 to 4 wt% of silica sol, 1 to 3 wt% of activated diatomaceous earth having a particle size of 365 mesh or more, 1 to 2% by weight of a mixture of a yeast composition, a natural rubber latex and an aqueous starch solution, 1 to 2% by weight of a zeolite deodorant, 1 to 2% by weight of a mixed powder containing at least one of loess, charcoal, tourmaline, 1 to 2% by weight of functional mineral solids, including sericite, Tourmaline, Amethyst, Quartzite, Bentonite, Calcium Carbonate and Talc, Based silicate-based adhesive.

In the functional mixture mixing step (S300), a mixture of the inorganic material and the silicate-based adhesive is mixed with a mineral powder comprising minerals that generate anions including tourmaline, monazite, zeolite, and male ceramics, and pure ocher at 600 to 900 占 폚 The functional mixture is mixed with 1 to 2% by weight of the functional mixture comprising the active loess powder and the wood vinegar, which are activated by heating, high-temperature firing and quenching.

 In the heating and press forming step S400, a mixture of the inorganic material, the silicate-based adhesive, and the functional mixture is placed in a metal mold and heated and pressure-molded to produce an eco-friendly building material according to the present invention.

Meanwhile, as shown in FIG. 2, after mixing the functional mixture (S300), a magnesium powder and a binder powder (S310) may be further mixed to mix the magnesium powder and the nano-sized binder powder.

[Example 1]

10 kg of liquid crystalline silicate, 2 kg of silica sol, 1 kg of activated diatomaceous earth having a particle size of 365 mesh or more, and a zeolite system having a surface modified by hydrophobic treatment were placed in a mixer, and the inorganic material including 10 kg of vermiculite vermiculite, 60 kg of pearlite, 2 kg of deodorant, 2 kg of loess powder, 1 kg of a mixture of yeast composition, natural rubber latex and aqueous starch solution, Sericite, Tourmaline, Amethyst, Bentonite, Calcium Carbonate) and talc (Talc) into 20 kg of water to mix the silicate-based adhesive.

0.5 kg of mineral powder including tourmaline, monazite, zeolite and decanter, and 0.5 kg of active loess powder were mixed homogeneously with 0.3 kg of wood vinegar, and then mixed in a mold. The mixture was heated at 300 ° C. and 150 kgf / Lt; / RTI > and pressure.

The eco-friendly building material using pearlite prepared according to the present invention has a far infrared ray emissivity of 0.9 and a far infrared ray radiation energy of 3.8 W / m 2 as measured at a temperature of 40 ° C. and a wavelength of 10 μm to 30 μm . On the other hand, the eco-friendly building material using the pearlite according to the present invention produced by the above method exhibits a compressive strength of 25 kg / cm 2 or more, indicating that the durability is enhanced.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

Claims (6)

5 to 10% by weight of vermiculite having a particle size of 0.1 to 1 mm, 60 to 65% by weight of pearlite having a particle size of 0.5 to 8 mm and 5 to 10% by weight of inorganic fibers comprising a mixture of glass fiber, An inorganic material comprising;
1 to 3% by weight of activated diatomaceous earth having a particle size of 365 mesh or more, 1 to 2% by weight of a zeolite-based deodorant having a hydrophobically modified surface, 5 to 15% by weight of liquid sodium silicate, 2 to 4% 1 to 2% by weight of a mixed powder comprising at least one of the following materials: a starch, a starch, a starch, 1 to 2% by weight of solid minerals containing solid hydrocarbons, talc, bentonite, calcium carbonate and talc, and having a hydrophobic or hydrophilic property depending on the addition ratio of the components glue; And
A mineral ground powder including tourmaline, monazite, zeolite, and tungsten, which are minerals that generate anions, and an active loess powder that is activated by heating at 600 to 900 DEG C and then quenching at high temperature, 1 to 2% by weight of a functional mixture of flour and wood vinegar; And
And a magnesium reinforcing material reinforcing the strength
Wherein the inorganic material is formed by mixing the silicate-based adhesive, the functional mixture, and the magnesium reinforcement,
The magnesium reinforcement
Magnesium powder is mixed with a binder powder having a size of 500 nm to 1200 nm and then water is mixed,
Wherein the binder powder is at least one selected from the group consisting of loess, charcoal, tourmaline and fibrous materials, or a mixture thereof. delete delete delete 5 to 10% by weight of vermiculite having a particle size of 0.1 to 1 mm, 60 to 65% by weight of pearlite having a particle size of 0.5 to 8 mm and 5 to 10% by weight of inorganic fibers comprising a mixture of glass fiber, An inorganic material mixing step of mixing the inorganic material containing the inorganic material;
Wherein the inorganic material comprises 6 to 15 wt% of liquid sodium silicate, 2 to 4 wt% of silica sol, 1 to 3 wt% of activated diatomaceous earth having a particle size of 365 mesh or more, 1 to 2 wt% of a zeolite- 1 to 2% by weight of a mixed powder comprising at least one of water, charcoal, tourmaline and fiber material, yeast composition, 1 to 2% by weight of a mixture of natural rubber latex and aqueous starch solution, sericite, tourmaline, amethyst Based adhesive comprising 1 to 2% by weight of a functional mineral solids comprising Amethyst, Quartzite, Bentonite, Calcium Carbonate and Talc. ;
A mineral powder containing minerals including tourmaline, monazite, zeolite, and male ceramics as a mixture of the inorganic material and the silicate-based adhesive; and pure ground yellow earth by heating at 600 to 900 DEG C, followed by quenching at high temperature A functional mixture mixing step of mixing 1 to 2% by weight of a functional mixture consisting of an active loess powder which is activated by a process and emits far-infrared rays and a wood vinegar;
Mixing the magnesium powder and the binder powder to mix the magnesium powder and the nanoscale binder powder; And
And heating and press-molding the mixture of the inorganic material, the silicate-based adhesive, the functional mixture, the magnesium powder, and the binder powder, and heating and press-molding the pellet. delete

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