WO2014189312A1

WO2014189312A1 - Spray-type incombustible heat insulator composition, preparation method therefor, and coating method thereof

Info

Publication number: WO2014189312A1
Application number: PCT/KR2014/004596
Authority: WO
Inventors: 박기홍
Original assignee: 주식회사 에코인프라홀딩스
Priority date: 2013-05-23
Filing date: 2014-05-23
Publication date: 2014-11-27
Also published as: KR101306632B1

Abstract

The present invention provides: an incombustible heat insulator composition comprising 50-70 wt% of an inorganic binder, 5-10 wt% of a silica aerogel, 4-7 wt% of an inorganic fiber, 20-30 wt% of an inorganic hollow sphere, and 1-3 wt% of a silane compound; a molded product obtained by curing the same; a method for preparing the composition; and a method for coating the same.

Description

Incombustible insulating material composition of spray method, manufacturing method and coating method thereof

The present invention relates to a non-flammable insulating material composition of the spray method, a manufacturing method and a coating method thereof.

Insulation is a structure that prevents the flow from moving from high to low heat, it effectively blocks heat loss and heat gain, saves energy, and prevents surface condensation caused by surface temperature drop. .

In general, the insulation is widely used in factories, apartments, houses, offices, low-temperature warehouses, containers, and other buildings, and is divided into organic insulation and inorganic insulation according to the components constituting the insulation.

The organic insulation is mainly composed of expanded polystyrene (EPS) and polyurethane foam (polyurethane form). Inorganic insulation includes glass wool, mineral wool, asbestos, and pearlite. It is coming true. In addition, insulation products made of polymers used for insulation and insulation for block and board-type insulation and various pipe applications are also used. In addition, recently applied to be used as a heat insulating filler, a heat insulating finish, etc., Republic of Korea Patent Publication No. 10-2011-0004690 discloses a coating type heat insulating finish composition using an acrylic emulsion resin, aluminum silicate and additives.

In the domestic insulation market, organic insulation accounts for 71%, of which polystyrene foam is 55%, compression board 6%, and polyurethane foam 29%. Organic thermal insulation products have been used for a long time as a heat insulating material because of low thermal conductivity. In the case of inorganic insulation, glass wool, rock wool, asbestos and pearlite account for 29% of the overall insulation market.

However, organic thermal insulation products, which have been widely used, have a higher flame spreading rate and higher heat generation rate than general materials in case of fire, and have a problem of causing fatal loss of lives and property loss due to large amount of toxic gas emission. have.

In addition, inorganic insulating materials formed using asbestos powder, glass fiber and dark lead as non-flammable materials are nonflammable and have excellent thermal insulation performance, but are increasingly prohibited from use because they are harmful substances that cause cancer when they are inhaled or inhaled by the human body. to be. In addition, the inorganic heat insulating material formed using the foam glass as a subject is excellent in insulation, but the strength is weak, so its use is extremely limited, and the use of the conventional inorganic heat insulating material has a large weight and high manufacturing cost compared to the organic heat insulating material in the industrial field because It is not widely used.

In addition, in the field construction, buildings with a certain standard such as apartments, villas, tenement houses, high-rise buildings, factory buildings, etc. are required to standardize and assemble materials, light weight, and flame retardant. There is a hassle to do.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Republic of Korea Patent Publication No. 10-2011-0004690 (2011.01.14)

The present invention has been made to solve the conventional problems as described above, the object of the present invention is easy to handle and work by applying a spray coating to the area that needs to be insulated, after use, heat shield, flame retardant and fireproof function Not only is this excellent but also to provide an environment-friendly ultra-light non-combustible insulation material composition does not generate any toxic gas.

In addition, another object of the present invention to provide a method for producing the non-combustible insulating material composition.

In addition, another object of the present invention to provide a spray coating method of the heat insulating material using the non-combustible insulating material composition.

The non-combustible heat insulating material composition according to the present invention for achieving the above object is 50 to 70% by weight inorganic binder, 5 to 10% by weight silica airgel, 4 to 7% by weight inorganic fiber, 20 to 30% by weight inorganic hollow body and silane compound It contains 1-3 weight%.

In addition, the inorganic binder is 50 to 80% by weight liquid sodium silicate, 5 to 10% by weight aqueous hydrochloric acid solution, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate and zinc chloride based on 100% by weight of the inorganic binder. It may be characterized by containing 5 to 10% by weight of the aqueous solution.

The inorganic binder further includes 3 parts by weight or less of hard calcium carbonate or an inorganic water repellent based on 100 parts by weight of the inorganic binder including the liquid sodium silicate, aqueous hydrochloric acid, aqueous citric acid, aqueous aluminum hydrogen phosphate and aqueous zinc chloride. It can be characterized by.

In addition, the inorganic fiber may be characterized in that the silica-based inorganic fibers.

In addition, the inorganic hollow body includes one or more selected from the group consisting of vermiculite, diatomaceous earth, kaolin, bentonite, bauxite, ball clay, onyxel, attapulgite, quartz, glass bubble, coresyl and microporous It can be characterized.

In addition, the silane compound is characterized in that it comprises at least one selected from the group consisting of alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane You can do

In addition, the non-combustible insulating material composition further comprises at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifying agents. can do.

The present invention includes a molded article obtained by curing the non-combustible heat insulating material composition.

In addition, the molded article may have a thermal conductivity of 0.01 to 0.04 W / mK as measured according to ASTM C518.

In addition, the molded article may be characterized by including a specific gravity of 0.1 to 0.3.

In addition, the molded article may be characterized in that it comprises an adhesive strength of 0.5 to 2.0 N / mm ² .

Nonflammable insulating material composition production method of the present invention comprises the steps of (a) preparing an inorganic binder; (b) mixing 5 to 10 wt% of the silica airgel with 50 to 70 wt% of the inorganic binder; (c) mixing 4-7% by weight of inorganic fibers; (d) mixing 20 to 30% by weight of the porous inorganic hollow body; And (e) mixing 1 to 3 weight percent of the silane compound.

In addition, the method for producing a non-combustible insulating material composition is (f) mixing at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, thermal stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifying agents. It may further comprise a step.

Spray coating method of the thermal insulation material of the present invention comprises the steps of (a) thermo-deposited coating an inorganic binder on the surface of the subject to be insulated; (b) applying a non-combustible insulating material composition prepared by the method of manufacturing a non-combustible insulating material composition according to the present invention by a spray method; (c) curing the applied non-combustible heat insulating material composition; (d) coating with a silane compound.

In addition, the thermal evaporation coating may be characterized in that the surface temperature of the subject is 80 ~ 120 ℃.

In addition, the spray coating may be characterized in that the non-flammable insulating material composition prepared by the method for producing a non-flammable insulating material composition according to the present invention is applied to a thickness of 3 to 7mm.

The non-combustible insulating material composition according to the present invention exhibits excellent heat shielding, flame retardancy and fire resistance. Therefore, the non-combustible heat insulating material composition according to the present invention can implement the properties of the heat insulating material and the refractory material at the same time. In addition, the non-combustible heat insulating material composition according to the present invention can be compressed and stored and carried, and can be easily coated by spraying the sprayed coating on the desired coating material, so that not only an excellent heat insulating effect but also convenience of construction, excellent construction quality and Economical.

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

In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to intention or precedent of a user or an operator, and thus, the meaning of each term should be interpreted based on the contents throughout the present specification. will be.

As described above, the non-combustible insulating material composition according to the present invention comprises (A) an inorganic binder, (B) silica airgel, (C) inorganic fibers, (D) inorganic hollow bodies and (E) silane compounds, and more specifically 50 to 70% by weight of the inorganic binder, 5 to 10% by weight of the silica airgel, 4 to 7% by weight of the inorganic fibers, 20 to 30% by weight of the inorganic hollow body, and 1 to 3% by weight of the silane compound. F) may further comprise an additive.

The compositions according to the invention may take the form of dry mixtures, solutions, dispersions, suspensions, slurries, pastes, dried or cured products, multilayered composites and the like. In addition, the compositions according to the invention can be molded into various articles, applied onto various articles or incorporated into various articles. The molded article may be used as a heat insulating material for factories, apartments, houses, offices, low-temperature warehouses, containers, and other buildings. Moreover, also the said shaping | molding method can use the method normally used in the said field | area.

Hereinafter, each component constituting the non-combustible heat insulating material composition of the present invention will be described in detail.

(A) inorganic binder

The inorganic binder included in the non-combustible insulating material composition of the present invention serves to combine the components of the composition and improve mechanical properties.

The inorganic binder may be selected from the group consisting of silicate materials such as sodium silicate and potassium silicate. In addition, an additive may be included to prevent the applied and dried silicate from re-melting by reacting with moisture or water in the air. In this case, the additive may include acids such as sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, and alkaline earth metals such as calcium carbonate, calcium nitrate, magnesium chloride, magnesium sulfate, and calcium hydroxide. In addition, zeolite, perlite, carbon and the like may be included as necessary.

The inorganic binder may include a liquid sodium silicate, an aqueous hydrochloric acid solution, an aqueous citric acid solution, an aqueous aluminum hydrogen phosphate solution, and an aqueous zinc chloride solution. Preferably, the inorganic binder is 50 to 80% by weight of liquid sodium silicate, an aqueous solution of hydrochloric acid 5 It is good to comprise in the range of -10 weight%, 5-15 weight% of citric-acid aqueous solution, 5-15 weight% of aqueous aluminum hydrogen phosphate, and 5-10 weight% of zinc chloride aqueous solution.

The inorganic binder may include 3 parts by weight or less of hard calcium carbonate and / or an inorganic water repellent based on 100 parts by weight of the inorganic binder including the liquid sodium silicate, aqueous hydrochloric acid solution, aqueous citric acid solution, aqueous aluminum hydrogen phosphate solution and zinc chloride solution. can do.

The inorganic binder is preferably contained in 50 to 70% by weight can express the physical properties required in the present invention.

(B) silica airgel

Silica airgel included in the non-combustible insulating material composition of the present invention serves to improve the fire resistance and heat insulation based on the diffused pores.

Aerogel is a transparent ultra-low density material with a porosity of 90% or more and a specific surface area of several hundred to 1500 m ² / g. Such porous aerogels can be applied in the fields of ultra low dielectric, catalysts, electrode materials, soundproofing materials, and the like. Especially, silica aerogels have high light transmittance and low thermal conductivity. It is a very efficient super insulation that can be used in automobiles, aircraft, and the like. Silica airgel can be obtained by drying the structure of the wet gel as it is, and is a material having a large specific surface area having a porosity of 80 to 99.87% and a pore size of 1 to 50 nm.

However, silica airgel has a problem in that the silica airgel having permanent hydrophobicity is produced by hydrophobizing the surface because the gel structural properties and physical properties are degraded when water is absorbed. Hydrophobic airgel is made of powder, granular and the like, the aerogel itself is hydrophobic, strong adhesion is not possible with the general adhesive can be used as a method of forming a space and filling the airgel into the space or a member impregnated with powder.

The silica airgel used in the present invention may include both silica airgel commonly prepared and used in the art to which the present invention belongs, and may preferably include sodium silicate. In addition, silane may be further included to enhance hydrophobicity and surface strength.

The silica airgel is preferably contained in 5 to 10% by weight can express the physical properties required in the present invention.

(C) inorganic fiber

Inorganic fibers included in the non-combustible insulating material composition of the present invention serves to seat the silica airgel.

Inorganic fibers include glass fibers, rock wool, slag fibers, metal fibers, etc., and are widely used in heat, heat dissipation, and soundproofing materials due to their high heat resistance compared to ordinary organic fibers.

In the present invention, ceramic fibers having excellent heat resistance such as alumina, zirconia, silicon carbide, carbon, and functional inorganic fibers such as metal fibers, carbon fibers, silicate fibers (glass fibers, rock fibers, silica fibers, ceramic fibers) and potassium titanate fibers may be used. It is preferable that it is a silica type inorganic fiber.

The inorganic fiber is preferably contained in 4 to 7% by weight can express the physical properties required in the present invention.

(D) inorganic hollow bodies

The inorganic hollow body included in the non-combustible heat insulating material composition of the present invention forms a shell portion in which silica airgel and inorganic fibers are combined to serve to construct a porous three-dimensional composition.

Inorganic hollow bodies according to an aspect of the present invention are hollow particles having an empty inside, and the term "hollow" as used herein may be understood to mean an empty space inside surrounded by an inorganic composite forming a shell. have.

The inorganic hollow body is vermiculite, diatomite, kaolin, bentonite, bauxite, ball clay, onyxell, attapulgite ), Quartz, glass bubble, koresil and microporous may be used, but is not limited thereto.

The inorganic hollow body is preferably contained in 20 to 30% by weight can express the physical properties required in the present invention, it is preferable that the porous of 50 to 60㎛ unit.

(E) Silane Compound

The silane compound included in the non-combustible insulating material composition of the present invention serves to bond and coat fine particles such as silica airgel and silica-based inorganic fibers.

Silane is the simplest silicone monomer, and has the organic functional group and the hydrolyzable group that can react with the organic material and the organic material in the same molecule can combine the organic material and the inorganic material. Through this, the quality improvement of mechanical strength, water resistance, adhesiveness, etc. of the non-combustible heat insulating material composition of the present invention, and the wear resistance and toughness through the surface coating increases, it is possible to improve the electrical properties and physical strength.

In the present invention, the silane compound includes, but is not limited to, alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane.

The silane compound is preferably contained in 1 to 3% by weight can express the physical properties required in the present invention.

(F) additive

The non-combustible heat insulating material composition according to the present invention may include additives such as impact modifiers, antibacterial agents, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifiers, and the like. There is no limitation on the amount used, but may be 0.01 to 10% by weight, preferably 0.05 to 10% by weight.

Hereinafter will be described a method for producing a non-combustible insulating material composition according to the present invention.

The present invention comprises the steps of (a) preparing an inorganic binder; (b) mixing 5 to 10 wt% of the silica airgel with 50 to 70 wt% of the inorganic binder; (c) mixing 4-7% by weight of inorganic fibers; (d) mixing 20 to 30% by weight of the porous inorganic hollow body; (e) mixing 1 to 3 weight percent of the silane compound; And (f) mixing at least one additive selected from the group consisting of impact modifiers, fungicides, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifiers. It provides a manufacturing method.

(a) In the step of preparing the inorganic binder, 5 to 10% by weight aqueous solution of hydrochloric acid, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate, and zinc chloride based on 50 to 80% by weight of liquid sodium silicate It is preferable to mix and react with 5-10 weight% of aqueous solutions, and 3 weight part or less of hard is added with respect to 100 weight part of inorganic binders containing the said liquid sodium silicate, aqueous hydrochloric acid solution, aqueous citric acid solution, aluminum hydrogen phosphate aqueous solution, and zinc chloride aqueous solution. Calcium carbonate and / or inorganic water repellent may be added. Accordingly, it is possible to produce an inorganic binder having strong water resistance, not burning even at a high temperature of 1,100 ° C. or more, and having a relatively short curing time and enhanced productivity.

In step (b), it is preferable to mix and react 5 to 10% by weight of the silica airgel with 50 to 70% by weight of the inorganic binder prepared in step (a). In this case, as the silica airgel, sodium silicate may be used as a raw material, and silane may be added for surface modification such as surface strength improvement and hydrophobic maintenance. In order to maintain pores in the sol form, high-speed mixing may be performed and atmospheric pressure drying may be performed to obtain a silica airgel in which solid and gas layers having uniform pore sizes are separated. The silica airgel obtained as described above may be mixed with the inorganic binder to improve the hydrophobicity and heat insulation of the inorganic binder.

In the step (c), it is preferable to mix and react 4 to 7% by weight of the inorganic fiber to the inorganic binder. More preferably, it is efficient to disperse by mixing at high speed for about 5 minutes at 1000 rpm level. In this case, the mixed inorganic fibers serve to seat an airgel that is difficult to adsorb to pores, and more preferably, silica-based inorganic fibers are used.

In step (d), it is preferable to mix and react 20 to 30% by weight of the porous inorganic hollow body with 50 to 70% by weight of the prepared inorganic binder. The inorganic hollow body plays an important role in forming a porous three-dimensional composition by forming a shell portion in which silica airgel and inorganic fibers are blended. Therefore, in order to achieve smooth adhesion without changing physical properties, it is preferable to proceed at room temperature, but is not limited thereto.

In step (e), it is preferable to mix and react 1 to 3% by weight of the silane compound with 50 to 70% by weight of the prepared inorganic binder. In the present invention, the silane compound includes, but is not limited to, alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane. The non-combustible heat insulating material composition thus formed may be utilized as a heat insulating material in the form of a spray.

In step (f), the mixture may further include an impact modifier, an antibacterial agent, a mold release agent, a heat stabilizer, an antioxidant, a light stabilizer, a colorant, a stabilizer, a pigment, a dye, an opaque agent, and the like for easy mixing and melting of the composition. It does not restrict | limit these components and addition amount.

On the other hand, the present invention provides a molded article obtained by curing the non-combustible heat insulating material composition.

The non-combustible insulating material composition and / or its molded article of the present invention prepared as described above has a thermal conductivity of 0.01 to 0.04 W / mK, and preferably a thermal conductivity of 0.01 to 0.03 W / mK when measured according to ASTM C518. Further, the adhesive strength is 0.5 to 2.0 N / mm ² , preferably 1.0 to 2.0 N / mm ² . In addition, the specific gravity may vary depending on the additive, but is generally 0.1 to 0.8, preferably 0.1 to 0.3, more preferably 0.1 to 0.2. The composition is easy to carry as it is possible to efficiently compress and store, and exhibits convenience of construction, excellent construction quality and economy as well as insulation effect by simple spray-type construction during construction.

Hereinafter, a method of coating a heat insulating material using a non-combustible heat insulating material composition according to the present invention will be described.

The present invention comprises the steps of (a) thermo-deposited coating the inorganic binder on the surface of the subject to be insulated; (b) applying the non-combustible insulating material composition prepared by the method for producing a non-combustible insulating material composition according to the present invention by a spray method; (c) curing the applied non-combustible heat insulating material composition; And (d) provides a spray coating method of the insulating method comprising the step of coating with a silane compound.

In the step (a), the inorganic binder is thermally evaporated and coated at a temperature of 70 to 400 ° C. in a state in which the plant operation for thermal insulation is continuously maintained on the surface of the subject to be insulated. It is preferable that the surface temperature of the said to-be-contained body is 70-200 degreeC, More preferably, it is 80-120 degreeC. The inorganic binder may be a mixture of not only an inorganic binder but also silica-based inorganic fibers, and each may be used alone. The inorganic binder firmly adheres to the subject and serves to sufficiently adhere the insulating material so that the insulating material does not fall off from the subject requiring insulation.

In the step (b), the non-combustible insulating material composition prepared by the method for producing a non-combustible insulating material composition according to the present invention is applied by spraying on the surface of the inorganic binder-heat-deposited coating. In the spray method, the non-combustible heat insulating material composition may be applied to a thickness of 1 to 10 mm. Since the non-flammable insulation material of the spray method increases the insulation effect according to the coating thickness, the thickness can be adjusted according to the construction conditions. In consideration of the volume increase amount and heat insulation effect of the available conductor in the construction, the coating thickness of the non-combustible heat insulating material is preferably 3-7mm, more preferably 3-5mm.

In step (c), the applied non-combustible heat insulating material composition is cured. Since the chemical reaction proceeds until the applied non-combustible heat insulating material composition reaches the final compressive strength, it is preferable to avoid direct sunlight, cold, and rainy weather. Curing of the applied non-combustible insulating material composition can be cured by natural drying and insulation without special measures. The period of curing may be half day to 3 days, preferably 1 day to 2 days.

In step (d), the cured non-combustible insulating material composition is coated with a silane compound. Through the silane compound coating, the surface of the nonflammable insulating material composition is smooth and smooth without being sticky. The silane compound coating is preferably an organic silane, but is not limited thereto.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following examples are only examples of the present invention and the present invention is not necessarily limited thereto.

Example

In order to evaluate the performance of the non-combustible insulating material composition of the present invention, the compositions of Examples 1 to 5 were prepared at the blending ratios shown in Table 1 below, and the thermal conductivity, specific gravity, and adhesive strength test according to the blending ratios of the respective compositions were performed. The results are shown in Table 2 below.

Table 1

TABLE 2

From the results of Table 2, the molded article made by curing the insulating material composition according to Examples 1 to 5 has a thermal conductivity of 0.01 to 0.04 W / mK, specific gravity of 0.1 to 0.2, and adhesive strength of 0.5 to 2.0 N / mm ² It can be seen that the excellent physical properties of.

In addition, in order to more specifically evaluate the performance of heat insulating material, flame resistance and fire resistance of the heat insulating material composition according to the present invention, the composition according to Example 1 is spray-coated to a predetermined thickness on a heated pipe, and then applied. Insulation effect, heat resistance, toxic gas presence, and sound insulation effect test according to the pipe temperature before and after was shown in Table 3 below.

TABLE 3

From the results of Table 3, when the coating thickness of the non-combustible heat insulating material composition is 3mm or more, it showed a very good heat insulation effect, heat resistance, sound insulation effect, no toxic gas is generated. However, in consideration of the volume increase amount and heat insulation effect of the subject, the coating thickness of the non-combustible heat insulating material composition according to the present invention is preferably 3 to 7mm, more preferably 3 to 5mm.

As described above, the non-combustible heat insulating material composition according to the present invention can realize the properties of the heat insulating material and the refractory material at the same time, and can be easily coated by spray-spraying coating the desired heat-insulating material, so not only an excellent heat insulating effect but also convenience of construction, Excellent construction quality and economy.

In the above, the present invention has been described with reference to the above embodiments, which are only examples, and the present invention will be described below in various modifications and equivalents which are obvious to those skilled in the art. It should be understood that it can be carried out within the scope of the appended claims.

Claims

A non-combustible heat insulating material composition comprising 50 to 70% by weight of an inorganic binder, 5 to 10% by weight of silica airgel, 4 to 7% by weight of inorganic fibers, 20 to 30% by weight of an inorganic hollow body, and 1 to 3% by weight of a silane compound.
The method of claim 1,

The inorganic binder is 50 to 80% by weight of liquid sodium silicate, 5 to 10% by weight aqueous hydrochloric acid solution, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate solution and aqueous zinc chloride solution 5 to 100% by weight inorganic binder. Non-combustible heat insulating material composition comprising ~ 10% by weight.
The method of claim 2,

The inorganic binder further comprises 3 parts by weight or less of hard calcium carbonate or an inorganic water repellent based on 100 parts by weight of the inorganic binder including the liquid sodium silicate, aqueous hydrochloric acid solution, aqueous citric acid solution, aqueous aluminum hydrogen phosphate solution and zinc chloride solution. Incombustible insulating material composition characterized in.
The method according to claim 1 or 2,

The inorganic fiber is a non-flammable insulating material composition, characterized in that the silica-based inorganic fibers.
The method according to claim 1 or 2,

The inorganic hollow body may include at least one selected from the group consisting of vermiculite, diatomaceous earth, kaolin, bentonite, bauxite, ball clay, onyxel, attapulgite, quartz, glass bubble, coresyl and microporous. Non-combustible heat insulating material composition.
The method according to claim 1 or 2,

The silane compound is characterized in that it comprises at least one selected from the group consisting of alkoxy silane, amino silane, epoxy silane, acrylic silane, mercapto silane, fluorine silane, methoxy silane, vinyl silane, chloro silane and silazane Incombustible insulation material composition.
The method according to claim 1 or 2,

The non-combustible insulating material composition is non-combustible, characterized in that it further comprises at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, heat stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifying agents Insulation material composition.
The molded article obtained by hardening | curing the nonflammable heat insulation material composition of Claim 1 or 2.
The method of claim 8,

Molded articles with a thermal conductivity of 0.01 to 0.04 W / mK as measured according to ASTM C518.
The method of claim 8,

Molded products with a specific gravity of 0.1 to 0.3.
The method of claim 8,

Molded product with adhesive strength of 1.0 ~ 2.0N / mm 2 .
(a) preparing an inorganic binder;

(b) mixing 5 to 10 wt% of the silica airgel with 50 to 70 wt% of the inorganic binder;

(c) mixing 4-7% by weight of inorganic fibers;

(d) mixing 20 to 30% by weight of the porous inorganic hollow body; And

(e) mixing 1 to 3% by weight of the silane compound

Non-combustible insulating material composition manufacturing method comprising a.
The method of claim 12,

The inorganic binder is 50 to 80% by weight of liquid sodium silicate, 5 to 10% by weight aqueous hydrochloric acid solution, 5 to 15% by weight aqueous citric acid solution, 5 to 15% by weight aqueous aluminum hydrogen phosphate solution and aqueous zinc chloride solution 5 to 100% by weight inorganic binder. Non-combustible insulating material composition manufacturing method comprising a ~ 10% by weight.
The method of claim 12,

(f) mixing at least one additive selected from the group consisting of impact modifiers, antibacterial agents, mold release agents, thermal stabilizers, antioxidants, light stabilizers, colorants, stabilizers, pigments, dyes and opacifiers Method for producing a non-combustible insulating material composition.
On the surface of the object requiring insulation

(a) thermodepositing the inorganic binder;

(b) applying a non-flammable insulating material composition prepared according to any one of claims 12 to 14 by a spray method;

(c) curing the applied non-combustible heat insulating material composition; And

(d) coating with a silane compound

Spray coating method of the heat insulating material comprising a.
The method of claim 15,

The thermal evaporation coating is a spray coating method of the heat insulating material, characterized in that the surface temperature of the object is 80 ~ 120 ℃.
The method of claim 15,

The spray coating method is a spray coating method of the heat insulating material, characterized in that for coating the non-combustible heat insulating material composition to a thickness of 3 to 7mm.