KR101316786B1 - A production method of non-flammable and semi-fireproof composite using the non-flammable - Google Patents

Abstract

The method of manufacturing a non-combustible composite material according to the present invention and a semi-combustible material using the non-combustible composite material prepared therefrom comprises mixing an inorganic material, an inorganic binder, and water (H ₂ O) to form a non-combustible mixture, and semi-drying the non-combustible mixture. And it relates to a non-combustible composite material manufacturing method comprising a step of producing a non-combustible material to dry-molded by putting the semi-dry non-combustible mixture into a predetermined mold and a semi-combustible material using a non-combustible composite material prepared therefrom.

Description

Non-combustible composite material manufacturing method and semi-combustible material using the non-combustible composite material produced therefrom {A PRODUCTION METHOD OF NON-FLAMMABLE AND SEMI-FIREPROOF COMPOSITE USING THE NON-FLAMMABLE}

The present invention is a conventional foamed polymer is very vulnerable to fire, in order to solve the problem that a large amount of toxic gas is generated from the foamed polymer in the early stage of the fire to cause a lot of life damage, by treating the foamed polymer with a flame retardant material and by mixing the non-flammable material The present invention relates to a method of manufacturing a nonflammable composite material having low flammability to a direct flame and having a high thermal insulation effect, and a quasi-combustible material using a nonflammable composite material prepared therefrom.

Recently, the global warming caused by greenhouse gas is accelerated and the cost of fossil fuel is increased to increase the cooling and heating efficiency. Therefore, many new technologies are being researched and developed to suppress the generation of carbon dioxide.

Residential, commercial spaces and indoor spaces where production activities are carried out are carried out by winter heating using fossil fuels and electricity and summer cooling using air conditioners.Increasing the cooling and heating efficiency of these indoor spaces can be achieved through insulation, Insulation construction using various insulation materials is being made, and the construction of the insulation is further strengthened to minimize the heat transfer caused by the recent increase in fuel costs.

Representative examples of the various thermal insulation materials used in the thermal insulation construction, the polymer series such as styrofoam, foamed polyurethane, foamed polyethylene, foam rubber, and inorganic systems such as glass wool, rock wool, silica, etc. are mainly predominant. Because it is nonflammable, it is used in the place where temperature difference is big or high temperature. In particular, the silica series is the best in terms of thermal conductivity and non-combustible performance, but is used only for special purposes due to the price problem.

For this reason, foaming polymers are generally used as insulation materials for general building insulation construction, and among them, polyurethane-based foams have the most excellent thermal conductivity properties. I'm using it as an alternative. It is excellent in foam insulation and can reduce the thickness of the wall, so the cost is high, but it is used to secure the inner area.

However, in the case of foamed polyurethane, which has been widely used as a heat insulating material for building insulation and building structures in recent years, there is a problem in use because of the high flammability during the fire and a large amount of toxic gas generated in the early stage of the fire. In order to solve this problem, in the present invention, to provide a non-combustible material consisting of inorganic and organic materials, the non-combustible material can be used alone, can be used as a polymer foam insulation and laminated to form a semi-combustible and improve the thermal insulation effect In the event of fire, loss of life can be minimized.

In addition, the application of this material is made through the air intake and exhaust through the duct during the air circulation used in large-sized big air and air conditioners, and equipped with a facility to increase the energy efficiency of the intake and exhaust air by using a heat exchanger in consideration of thermal efficiency. Also do. Previously, ducts were regarded as simple air passages, but cooling and heating energy savings were also achieved through heat exchange of intake and exhaust, and condensation also occurs due to temperature differences. Therefore, it can be used as a material that can achieve the insulation of the duct.

In the existing general method, the insulation of the duct is made by installing a tin or stainless steel duct for insulation, and then using the glass surface on the outside, but this method increases the construction cost and It causes a problem of dust generation due to leakage, and there is also a problem of causing discomfort and pain due to the needle-like structure of the glass surface dust. However, using the present invention to produce a product with a non-combustible and non-combustible function having a construction convenience and excellent thermal insulation effect and improved fire vulnerability.

In order to solve the above problems, the present invention has a heat insulating property, the main composition is a nonflammable material and a method of manufacturing a nonflammable composite material of a mixed form of an organic material added during some molding process,

By combining the non-combustible composite material produced by the above manufacturing method with other heat insulating material and integrating it into a laminated structure, various non-combustible grades, quasi-non-combustible materials, quasi-non-combustible materials that can be used as materials for preventing noise, sound absorption and sound insulation materials It is an object of the invention to provide.

In order to achieve the above object,

The present invention comprises the steps of mixing an inorganic material, inorganic binder, water (H ₂ O) to form a non-combustible mixture,

Semi-drying the incombustible mixture;

A non-combustible composite material manufacturing method comprising the step of manufacturing a non-combustible material by drying the semi-dry non-combustible mixture into a predetermined mold;

The non-combustible composite material prepared from the above production method is expanded polyurea, expanded urethane, urethane foam, expanded polyisocyanurate, expanded polystyrene, bead expanded foamed styrene, extrusion expanded foamed styrene, expanded styrofoam, expanded ethylene, foam The main technical configuration is a semi-combustible material having a laminated structure by adhering any one or two or more polymer-based heat insulating materials selected from propylene with an adhesive.

As described above, the non-combustible material prepared by the manufacturing method of the present invention has the low thermal conductivity, lightweight foamed polymer insulation material properties of the existing expanded polyurethane, styropol, expanded polystyrene, expanded propylene, and at the same time, non-combustible Therefore, it has the advantage that it can be used by replacing the insulation product in the fire hazard area, and it has very excellent insulation performance and quasi-non-combustible performance by using it as a laminate with the existing material. In addition, by treating the outer surface of the material with a metal, the heat insulating effect and absorbency due to heat reflection is low, there is no generation of dust and the like, and has antibacterial properties.

As described above,

Non-combustible composite material according to the present invention comprises the steps of mixing an inorganic material, inorganic binder, water (H ₂ O) to form a non-combustible mixture,

Semi-drying the incombustible mixture;

The semi-dried non-combustible mixture is manufactured through a non-combustible material manufacturing step of drying the mold into a predetermined mold.

Hereinafter, the above description will be made in detail.

The non-combustible mixture is prepared by mixing 1 to 60 parts by weight of the inorganic binder and 20 to 200 parts by weight of water (H ₂ O) based on 100 parts by weight of the inorganic material.

The inorganic material is used to impart heat insulation, and may be any one or two or more selected from inorganic calcium, magnesium, zinc, silicon, iron, phosphorus-containing compounds, talc, vermiculite, pearlite, talc, and natural silica. use.

The inorganic binder may be any one or two or more selected from liquid water glass and sulfur compounds and hydroxide compounds such as aluminum, magnesium, calcium, zinc, iron, potassium, sodium, and the like when the amount is less than 1 part by weight. If it is not made properly, and exceeds 60 parts by weight, there is a problem that the heat insulating performance is poor, it is preferable to limit the amount of the inorganic binder to be used in the range of 1 to 60 parts by weight based on 100 parts by weight of the inorganic material.

When the amount of water used is less than 20 parts by weight, the molding is not performed properly. When the amount of water is used in excess of 200 parts by weight, the slurry is diluted so that molding is difficult and the drying process is long. It is preferable to limit in 20-200 weight part with respect to a part.

After the composition of the non-combustible mixture is prepared in the form of a semi-dry slurry at 25 ~ 500 ℃ and undergo a non-combustible material manufacturing process.

The non-combustible material manufacturing process is a process of drying by injecting a non-flammable mixture having a slurry form in a semi-dry to a predetermined mold.

The non-combustible material manufacturing step may be used as a non-combustible composite material by dry molding a non-flammable mixture in the form of a slurry,

In addition to the non-woven fabric immersed in the slurry non-combustible mixture after the compression drying may be used as a non-combustible composite material.

That is, after completely immersing the non-woven fabric of 1 ~ 20mm thickness in the semi-dry non-flammable mixture, take out, and compression-drying at a temperature of 50 ~ 500 ℃ and pressure conditions of 0.1 ~ 5kg _f / ㎠ to prepare a non-combustible composite material.

In this case, when the thickness of the nonwoven fabric is less than 1 mm, the content of the nonflammable mixture applied to the nonwoven fabric is too small to sufficiently perform the nonflammable function. When the thickness exceeds 20 mm, the content of the nonflammable mixture applied to the nonwoven fabric is increased so that the nonflammable function is improved. Since there is a disadvantage in that it is uneconomical because there is no large change in, it is preferable that the thickness of the nonwoven fabric is maintained in the range of 1 to 20 mm.

When the temperature of the compression drying is less than 50 ° C., sufficient drying may not occur. When the temperature of the compression drying exceeds 500 ° C., excessive drying and deformation of the nonwoven fabric may occur, so that the temperature of the compression drying may be maintained within a range of 50 to 500 ° C. Is preferred,

When the pressure of the crimping and drying is less than 0.1kg _f / ㎠, the crimping is not performed properly, and the drying is not performed properly, and when the pressure exceeds 5kg _f / ㎠ and the problem of power waste due to excessive crimping and non-woven fabric Since thermal conductivity due to excessive compression is increased, it is difficult to achieve the intended purpose of the present invention. Therefore, it is preferable to limit the pressure condition of the compression drying within the range of 0.1 to 5 kg _f / cm 2.

In order to further improve non-combustibility and thermal insulation, the non-combustible composite material prepared through the above process is applied by excessively by completely immersing the non-combustible material prepared through the non-combustible material manufacturing step in the non-combustibles and then taking it out and temporarily staying in the upper portion of the container containing the non-combustibles. The resulting non-combustibles can be naturally separated by gravity, and then compressed again to remove the finally applied non-combustibles, dried at 50 to 800 ° C, and then foamed by adding a foaming agent to produce a non-combustible composite material. have.

The incombustibles may be specifically used water glass and mixed with an inorganic binder. The water glass can be used all from No. 1 to No. 4, but in case of No. 4, the concentration is low, it is preferable to use No. 4 water glass because the coating speed is fast and uniform coating is possible because of the low viscosity.

Quality standards of the water glass No. 1 to No. 4 are shown in Table 1 below.

No. 1 No. 2 No. 3 No. 4 Exterior  Colorless or slightly colored liquid with starch syrup Specific gravity (15, Be ') - 54 or more 40 or more 30 or more SiO ₂ (wt%) 35 to 38 34 to 36 28 to 30 20-25 Na ₂ O (wt%) 17 to 19 14-15 9 to 10 6 to 7 Fe (ferric oxide, wt%) 0.05 or less 0.05 or less 0.03 or less 0.03 or less Water insoluble (wt%) 0.2 or less 0.2 or less 0.2 or less 0.2 or less

Specific examples of the blowing agent used in the foaming process include any one or two selected from isocyanate, cyclopentane, sodium bicarbonate, ammonium carbonate, amyl acetate, aluminum sulfate, sodium bicarbonate, water, nitrogen, and carbon dioxide. Use more than one species.

At this time, the amount of the blowing agent is used 2 to 50 parts by weight based on 100 parts by weight of the non-flammable material is applied, if the amount is less than 2 parts by weight is not sufficient foaming, if exceeding 50 parts by weight of the organic system after foaming Since the substance may remain to reduce the incombustibility, it is preferable to limit the amount of the blowing agent to be in the range of 2 to 50 parts by weight based on 100 parts by weight of the nonflammable material coated with the nonflammable.

As the inorganic binder used with the blowing agent, liquid water glass and any one or two or more selected from sulfur compounds and hydroxide compounds such as aluminum, magnesium, calcium, zinc, iron, potassium, sodium, and the like may be used. It is 5 parts by weight.

And foaming temperature shall be in the range of 25-500 degreeC.

The non-combustible composite material produced through the above manufacturing process can be used as a non-combustible material having heat insulation and light weight as its difference, and is applied to a laminated structure by bonding with a polymer-based heat insulating material to obtain an insulation effect and a quasi-non-combustible effect. It can be used as a semi-nonflammable material.

The quasi-non-combustible material has a laminated structure with the polymer-based heat insulating material prepared before, the non-combustible composite material to be bonded by using an adhesive to have an integral configuration.

At this time, the adhesion is made by applying the adhesive to 0.05 ~ 10 parts by weight with respect to 100 parts by weight of the heat insulating material and then applying the non-combustible composite material to the adhesive coating surface.

The polymer-based insulating material is any one selected from foamed polyurea, foamed urethane, urethane foam, foamed polyisocyanurate, foamed polystyrene, bead method foamed styrene, extrusion method foamed styrene, foamed styrofoam, foamed ethylene, foamed propylene Use 1 type, or 2 or more types.

The adhesive may be a silicone adhesive, a modified silicone adhesive, an acrylic resin adhesive, a mixed adhesive of urethane acrylate and an epoxy acrylate, an acrylic resin narrow adhesive, an acrylic resin emulsion adhesive, a-olefin adhesive, a urethane resin adhesive, an ether-based cellulose adhesive. , Ethylene-vinyl acetate resin adhesive, epoxy resin adhesive, chloroprene rubber adhesive, cyanoacrylate adhesive, aqueous polymer-isocyanate adhesive, styrene-butadiene rubber solution adhesive, styrene-butadiene rubber latex adhesive, nitrocellulose adhesive, phenolic resin adhesive , Polyamide adhesive, polyolefin resin hot melt adhesive, polyvinyl acetate resin solution adhesive, polystyrene resin solvent adhesive, polyvinyl butyral resin adhesive, polybenzimidazole adhesive, polymethacrylate resin solution adhesive, melamine resin Any 1 type (s) or 2 or more types chosen from an adhesive agent, a urea resin adhesive agent, and a resorcinor adhesive agent are used.

Let us look at the details of the above technical configuration through the embodiment in more detail.

Nonflammable Composite Material Manufacturing

It is a manufacturing process of nonflammable composite material of basic form,

To 100 parts by weight of calcined talc having a particle size of 5 mm, 100 parts by weight of water, 10 parts by weight of magnesium sulfate, and 20 parts by weight of water glass are mixed. At this point, mix thoroughly to allow complete mixing and dissolution of the water-soluble components.

Then, the non-combustible mixture formed by mixing and drying the slurry is semi-dried and poured into a mold made of stainless steel of 900mm × 900mm × 10mm size to complete the non-combustible material. Incombustible materials themselves are used here as noncombustible composites.

This embodiment is to produce a non-combustible composite material by incorporating a nonwoven fabric in the non-combustible mixture prepared in Example 1,

To 100 parts by weight of calcined talc having a particle size of 5 mm, 100 parts by weight of water, 10 parts by weight of magnesium sulfate, and 20 parts by weight of water glass are mixed. At this point, mix thoroughly to allow complete mixing and dissolution of the water-soluble components.

Then, the non-woven fabric having a thickness of 20 mm is completely immersed in the mixed non-combustible mixture, taken out, and pressed and dried at a temperature of 500 ° C. and a pressure of 5 kg _f / cm 2 to complete the non-combustible material. Incombustible materials themselves are used here as noncombustible composites.

In this embodiment, the non-combustible material prepared through the step of manufacturing the non-combustible material prepared in Example 1 was completely immersed in No. 4 water glass, which is a non-combustible material, was taken out, dried at 100 ° C., and then the non-combustible material was immersed in a 5% sodium hydrogen carbonate solution with a blowing agent. It is added to 10 parts by weight with respect to 100 parts by weight of the non-flammable material and then foamed. After foaming and drying for 1 hour at 200 ℃ to complete the non-combustible composite material.

This embodiment is the same as in Example 3 except that the non-combustible material prepared from Example 2 is used in selecting the non-combustible material.

In addition, the semi-combustible material according to the present invention is selected from the non-combustible composite materials prepared from Examples 1 to 4 foamed polyurea, foamed urethane, urethane foam, foamed polyisocyanurate (polyisocyanurate), foamed polystyrene It is completed by integrating a laminated structure using any one or two or more types of polymer-based insulating materials and adhesives selected from bead method expanded styrene, extrusion method expanded styrene, expanded styrofoam, expanded ethylene and expanded propylene.

The non-combustible composite material produced according to the present invention has the heat insulating property and the light weight of the existing heat insulating material, and at the same time it is a non-combustible material, so it can be used to replace the existing heat insulating material, and to prevent the noise between the floors of the apartment house as an additional use place. It can be used as a material that meets the noticed noise prevention standard for apartment floors.

Claims (6)

Mixing an inorganic material, an inorganic binder, and water (H ₂ O) to form a nonflammable mixture,
Semi-drying the incombustible mixture;
In the method comprising the step of manufacturing a non-combustible material to dry molding the semi-dried non-combustible mixture in a predetermined frame,
The non-combustible material manufacturing step is to put the semi-dry non-combustible mixture into a frame made of stainless steel of 900mm × 900mm × 10mm size and then completely immersed the non-woven fabric of 1 ~ 20mm thickness in the non-combustible mixture and take out the temperature of 50 ~ 500 ℃ and Press-drying under pressure conditions of 0.1 ~ 5kg _f / ㎠,
Specific gravity (15, Be ') 30, SiO ₂ 20-25 wt%, Na ₂ O 6-7 wt%, Fe (ferric oxide) 0.03wt%, water insoluble Completely immersed in water glass No. 4 with 0.2 wt% of min and then taken out and dried at 50-800 ° C., followed by foaming at 25-500 ° C. by adding a blowing agent to produce a non-combustible composite material.
The blowing agent is used together with an inorganic binder, and isocyanate, cyclopentane, sodium bicarbonate, ammonium carbonate, amyl acetate, aluminum sulfate, sodium bicarbonate, and water based on 100 parts by weight of the nonflammable material on which the nonflammable is coated. 2 to 50 parts by weight of any one or two or more selected from among nitrogen, carbon dioxide, and a blending ratio of 1 to 5 parts by weight of liquid water glass as an inorganic binder.



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