KR102591767B1 - Inflammable panel having thermal and sound insulation prooerties - Google Patents

Abstract

The present invention relates to a non-combustible sound-absorbing and heat-insulating panel, and more specifically, to a base panel manufactured including foamed glass granules and an inorganic binder, wherein the inorganic binder includes an organic binder, cellulose, a thickener, and an inorganic binder. It is characterized by: According to the present invention, there are advantages in that it is excellent in light weight, sound absorption, insulation, fire resistance and eco-friendliness, does not generate toxic gases in case of fire, has a low manufacturing cost, and improves the damage rate due to high hardness.

Description

Non-combustible sound absorption and insulation panels {INFLAMMABLE PANEL HAVING THERMAL AND SOUND INSULATION PROOERTIES}

The present invention relates to a non-combustible sound-absorbing and insulating panel, and more specifically, to a non-combustible sound-absorbing and insulating panel that contains foam glass granules and an inorganic binder and is therefore eco-friendly, lightweight, fire-resistant, heat-insulating, sound-absorbing and processable. will be.

The demand for soundproofing and insulation materials is rapidly increasing to improve residential environments. Styrofoam, which is used for building insulation or soundproofing, is light and has good insulation and soundproofing effects, but has the disadvantage of being weak in durability, easily igniting and igniting, and generating toxic gas in the event of a fire, resulting in significant casualties. Recently, its Use is restricted.

In addition, glass fiber, which is widely used as building insulation and soundproofing material, is safe from risks such as fire, but when exposed to the air, the scattering of glass fiber may generate bed dust that is harmful to the human body. There is concern that harmful dust may be generated during construction, which may have a negative impact on the health of workers during the construction process, and as it has been proven that dust generated by aging materials is harmful to the human body, its use is gradually decreasing.

In addition, wood made from waste wood has the advantage of being environmentally friendly, but it is vulnerable to fire, and above all, it has the problem of poor performance as a sound absorbing or insulating material, and there are difficulties in smooth supply and demand of waste wood.

In addition, there are cases where cement concrete material is applied as a sound absorbing material, but the specific gravity of cement concrete sound absorbing material is large, so the product is heavy, constructability is poor, and it is difficult to secure the opening ratio and porous structure, so there are problems with insufficient sound absorbing performance.

Previously, US Patent No. 9,018,139 proposed a method of manufacturing a panel by mixing waste glass and a hydrate of sodium silicate and molding it at a high temperature of 750~1000℃. These panels have a high hardness and have a high breakage rate even under small impacts. The disadvantage was that it was high and there was a lot of damage due to thermal expansion depending on temperature.

Meanwhile, panels molded using inorganic binders such as cement have also been proposed, but there are problems in that the products are not lightweight and are easily damaged by small impacts.

KR 10-1519864 B1 KR 10-1541081 B1 US 9,018,139 B2

Therefore, the purpose of the present invention is to improve lightness, sound absorption, insulation, and fire resistance by using foamed glass granules and an inorganic binder, while being excellent in eco-friendliness and improving the breakage rate due to high hardness without a high-temperature molding process. The goal is to provide non-combustible sound-absorbing and insulating panels.

The non-combustible sound-absorbing and heat-insulating panel according to the present invention includes a base panel manufactured including foamed glass granules and an inorganic binder, wherein the inorganic binder includes an organic binder, cellulose, a thickener, and an inorganic binder. .

The inorganic binder is characterized in that it contains 30 to 40% by weight of an organic binder, 5 to 8% by weight of cellulose, 3 to 6% by weight of a thickener, and the balance of the inorganic binder.

The inorganic binder is at least one selected from Portland cement, calcined lime, and gypsum, the organic binder is at least one selected from acrylic copolymer, vinyl acetate-ethylene copolymer, and polyvinyl alcohol, and the cellulose is hydropropyl methyl cellulose (HPMC). ), HEMC (hydroethyl methyl cellulose), PMC (propyl methyl cellulose), and EMC (ethyl methyl cellulose), and the thickener is characterized as an inorganic thickener.

The base panel further includes one or more of bamboo fiber, microfiber, mulberry powder, and corn cob powder.

Characterized in that it further includes; an inorganic board laminated on one surface of the base panel.

The inorganic board is characterized in that it is one type of wool cement board, glass wool board, and rock wool board.

It is characterized in that it further includes; another base panel interposed between the base panel and the inorganic board.

According to the non-combustible sound-absorbing and heat-insulating panel of the present invention, it is excellent in light weight, sound absorption, insulation, fire resistance and eco-friendliness, does not generate toxic gases in case of fire, has a low manufacturing cost, and has an improved damage rate due to high hardness. There is an advantage.

Hereinafter, the present invention will be described in detail.

The non-combustible sound-absorbing and heat-insulating panel of the present invention contains foamed glass granules and an inorganic binder, so it has excellent sound absorption, insulation, light weight and fire resistance, is environmentally friendly, and is resistant to damage due to the high hardness of conventional thermoformed bonded products and inorganic binder molded products. The biggest characteristic is that it solves the problem of high rates.

The non-combustible sound-absorbing and heat-insulating panel of the present invention includes a base panel manufactured including foamed glass granules and an inorganic binder, wherein the inorganic binder includes an organic binder, cellulose, a thickener, and an inorganic binder. .

First, foamed glass is a material that foams homogeneous pores in glass so that it has both the physical properties of the glass itself and the physical properties resulting from the structure. In addition, since the foamed glass is made from discarded glass, etc., it is an eco-friendly material that can be recycled as waste resources and after disposal. The foamed glass has high lightness due to homogeneous bubbles, has high absorption/sound insulation properties to block and absorb noise and vibration, and also has cold and warm insulation properties, high fire resistance and incombustibility, strong acid resistance, and strong corrosion resistance. It has the advantage of being easy to process.

The foamed glass granules used in the present invention refer to foamed glass having a diameter of 0.2 to 20 mm, and the foamed glass granules can be any of the conventionally sold products.

The inorganic binder has excellent fire resistance, does not emit toxic gases in the event of a fire, and is a material that effectively binds foam glass granules.

It is preferable to use an inorganic binder containing an organic binder, cellulose, a thickener, and an inorganic binder, because the inorganic binder of this composition can significantly reduce the breakage rate due to the high hardness of the non-combustible sound-absorbing and insulating panel. That is, in the case of conventional inorganic, non-combustible sound-absorbing and insulating panels with high hardness, there were disadvantages such as high breakage rate, high unit cost, and poor constructability and transportability, but the present invention overcomes the above-described disadvantages by using such an inorganic binder. is to improve everything.

At this time, the organic binder may be one or more selected from acrylic copolymer, vinyl acetate-ethylene copolymer, and polyvinyl alcohol. The organic binder increases adhesion between foam glass granules.

The inorganic binder can be one or more of Portland cement, calcined lime, and gypsum, and not only increases cohesive strength, but also improves fire resistance and helps reduce the breakage rate due to high hardness.

The cellulose can be one or more of HPMC (hydropropyl methyl cellulose), HEMC (hydroethyl methyl cellulose), PMC (propyl methyl cellulose), and EMC (ethyl methyl cellulose), which helps form open cells between foam glass granules. It provides improved sound absorption and insulation performance, and reduces the breakage rate due to high hardness.

The thickener is made to be stable against fire by using an inorganic thickener. For example, magnesium alumino silicate, etc. can be used, but this is not limited.

At this time, the composition ratio of the inorganic binder is 30 to 40% by weight of organic binder, 5 to 8% by weight of cellulose, 3 to 6% by weight of thickener, and the balance of inorganic binder. If this composition ratio is exceeded, excellent fire resistance, heat insulation, sound absorption, etc. This is because there is a problem that not only cannot be maintained, but the damage rate cannot be lowered.

In addition, in the present invention, the base panel contains 10 to 50 parts by weight of the inorganic binder based on 100 parts by weight of the foamed glass granules. If the content of the inorganic binder is too low, the adhesion between the foamed glass granules is poor, and if the content is too low, the adhesion between the foamed glass granules is poor. This is because there is a disadvantage in that lightness and sound absorption are reduced.

Additionally, the base panel of the present invention is not limited in its thickness. In addition, when manufacturing the base panel, additional water is mixed, appropriately compressed, molded, and then dried, so it is natural that a small amount of water may be added.

As described above, the base panel constituting the non-combustible sound-absorbing and heat-insulating panel of the present invention configured as described above is excellent in sound-absorbing, heat-insulating, lightweight and fire-resistant, and is environmentally friendly through the use of an inorganic binder of the above-described composition. It has the advantage of lowering the breakage rate due to high hardness.

In addition, the base panel of the present invention preferably further contains bamboo fiber.

The bamboo fiber not only reduces the damage rate of the panel, but also maintains lightness, further improves sound absorption, and helps improve overall physical properties.

The bamboo fiber was manufactured by cutting bamboo, putting it in a roller press, injecting steam into it, and heating and pressurizing it at a temperature of 156 to 160°C at a pressure of 5 atmospheres for 1 to 6 hours to dry it. Afterwards, it is sufficient to cut it to a length of 0.1 to 10 mm and use it, and it is natural that any form available on the market can be purchased and used.

The bamboo fiber is preferably included in an amount of 5 to 10 parts by weight based on 100 parts by weight of the foamed glass granules.

In addition, the base panel of the present invention preferably further includes microfibers in order to increase the adhesive surface between foam glass granules.

The type of microfiber is not limited, and any commercially available microfiber can be applied.

The microfibers are preferably included in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the foamed glass granules.

The base panel of the present invention preferably further contains mulberry powder.

The mulberry powder is made by drying the inner bark and cob of mulberry trees and pulverizing them to about 50 to 100 mesh, which increases the strength by increasing the adhesion between foam glass granules. In addition, the mulberry powder contains a large amount of kazinol, an anti-atopic substance, and plays a role in improving the indoor environment by preventing the activation of substances that cause dermatitis.

At this time, the mulberry powder is preferably included in an amount of 5 to 10 parts by weight based on 100 parts by weight of the foamed glass granules.

The base panel of the present invention preferably further includes corn cob powder.

The corn cob powder is made by drying corn cobs and pulverizing them to about 50 to 100 mesh, which increases the strength by increasing the adhesion between foam glass granules.

At this time, the corn cob powder is preferably included in an amount of 5 to 10 parts by weight based on 100 parts by weight of the foamed glass granules.

The non-combustible sound-absorbing and insulating panel of the present invention includes the above-described base panel, so it has excellent sound-absorbing and insulating properties and can be applied to various fields as a sound-absorbing or insulating material. It can be used as a sound-absorbing material made of concrete or a sound-absorbing material made of glass fiber. Unlike this, it has the effect of greatly improving convenience during the construction process. In addition, compared to existing sound-absorbing materials, it has the advantage of being more environmentally friendly, having a lower manufacturing cost, being significantly lighter, and also improving various physical properties, thereby lowering the breakage rate.

On the other hand, the non-combustible sound-absorbing and heat-insulating panel according to the present invention may be composed of only the base panel as described above, and in order to further increase the sound-absorbing and heat-insulating properties, it further includes an inorganic board laminated on one side of the base panel. It may be configured.

At this time, it is natural that one of the inorganic boards, which are conventionally used as general sound absorbing materials, such as wool cement board, glass wool board, and rock wool board, can be used.

When additional inorganic boards are included, the incombustibility and sound absorption performance can be further improved with only a minimal increase in weight.

In addition, the non-combustible sound-absorbing insulation panel according to the present invention may further include another base panel interposed between the base panel and the inorganic board, and its further implementation is not limited.

Hereinafter, the method of manufacturing a non-combustible sound-absorbing and heat-insulating panel according to the present invention will be briefly described.

First, the raw materials foam glass granules and inorganic binder are mixed. And mix more water. At this time, the mixing ratio may be about 10 to 50 parts by weight of the inorganic binder and 50 to 150 parts by weight of water based on 100 parts by weight of the foamed glass granules, but this is not necessarily limited.

In addition, if necessary, one or more of the auxiliary materials such as bamboo fiber, microfiber, mulberry tree powder, and corn cob powder are further mixed.

Then, the mixed mixture is injected into a mold and molded into the desired shape. At this time, the molding may be in the form of a panel, and the thickness may be 3 to 50 mm, but this is not limited.

Next, the molded product is sufficiently dried at 20 to 80° C. to complete the manufacture of the base panel.

Then, it can be used as a non-combustible sound-absorbing insulation panel, or, if necessary, an additional inorganic board can be laminated on one side of the base panel, or after two or more base panels have been laminated, an inorganic board can be laminated on one side again to provide non-combustible sound absorption and insulation. The manufacturing of the insulation panel is completed.

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

(Example 1)

After preparing raw materials by mixing 100 parts by weight of foamed glass granules (0.2 to 20 mm in diameter), 30 parts by weight of inorganic binder, and 100 parts by weight of water, the raw materials are injected into a mold and molded into panels with a thickness of 25 mm and 50 mm, and heated at 60°C. It was dried for 24 hours.

At this time, the inorganic binder was used as an organic binder consisting of 35% by weight of PVA, 5% by weight of cellulose HPMC, 5% by weight of magnesium aluminosilicate as an inorganic thickener, and the balance of Portland cement.

(Example 2)

The same procedure as in Example 1 was carried out, but when preparing the raw materials, 5 parts by weight of bamboo fiber, 5 parts by weight of mulberry powder, and 5 parts by weight of corn cob powder were further mixed.

(Example 3)

The same procedure as in Example 1 was carried out, but 1 part by weight of microfiber (Avocell pwc500) was additionally mixed when preparing the raw materials.

(Test Example 1)

The incombustibility of the sample (50 mm thick) was tested. The test analysis method was based on KS F ISO 1182. And the results are shown in Table 1 below.

Test Example 1 Results division
Example 1 Example 2 Example 3 standard Non-flammability test
(20 minutes) Difference between the highest temperature in the furnace and the final equilibrium temperature (K) -0.2 0.1 1.2 Should not rise above 20K Mass reduction rate (%) 17.72 18.26 17.37 30% or less

As shown in Table 1, it was confirmed that Examples 1 to 3 of the present invention were all excellent in incombustibility.

(Test Example 2)

The thermal conductivity, water absorption, compressive strength, and density of the sample (50 mm thick) were tested. The test analysis method was based on GR L 2002-2016 and KS L ISO 679. And the results are shown in Table 2 below.

Test Example 2 Results division Example 1 Example 2 Example 3 Test analysis method Thermal conductivity (W/m·K) 0.054 0.052 0.054 GR L 2002-2016 Absorption rate (%) 0.22 0.23 0.22 GR L 2002-2016 Compressive strength (N/㎟) 1.5 1.6 1.6 KS L ISO 679 Density (kg/㎥) 287.36 285.25 286.84 GR L 2002-2016

As shown in Table 2, Examples 1 to 3 of the present invention were all excellent in physical properties such as thermal conductivity, water absorption, compressive strength, and density, and were confirmed to be suitable for use as sound absorption and insulation panels.

(Test Example 3)

The sound absorption coefficient of the sample (thickness 25 mm) was measured in the range of 100 to 5000 Hz, and the results are shown in Table 3 below. The test method was in accordance with KS F 2805;2014.

Test Example 3 Results (Sound Absorption Coefficient) Frequency (Hz) 100 125 160 200 250 315 400 500 630 Example 1 0.04 0.04 0.04 0.07 0.08 0.12 0.14 0.19 0.27 Example 2 0.04 0.04 0.04 0.08 0.08 0.13 0.15 0.20 0.29 Example 3 0.04 0.04 0.04 0.07 0.08 0.12 0.15 0.19 0.27 Frequency (Hz) 800 1000 1250 1600 2000 2500 3150 4000 5000 Example 1 0.34 0.49 0.66 0.83 0.99 0.95 0.76 0.64 0.68 Example 2 0.36 0.52 0.70 0.89 0.99 0.99 0.81 0.70 0.72 Example 3 0.35 0.50 0.67 0.82 0.99 0.96 0.77 0.64. 0.67

As shown in Table 2, it was confirmed that Examples 1 to 3 of the present invention had excellent sound absorption characteristics.

Above, the present invention has been described in detail with preferred embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. This is possible.

Claims (7)

A base panel manufactured including foam glass granules and an inorganic binder;
The inorganic binder includes an organic binder, cellulose, a thickener, and an inorganic binder,
The inorganic binder is one or more of Portland cement, calcined lime, and gypsum,
The organic binder is one or more selected from acrylic copolymer, vinyl acetate-ethylene copolymer, and polyvinyl alcohol,
The cellulose is one or more of HPMC (hydropropyl methyl cellulose), HEMC (hydroethyl methyl cellulose), PMC (propyl methyl cellulose), and EMC (ethyl methyl cellulose),
The thickener is an inorganic thickener,
The base panel is,
It further contains one or more of microfiber, mulberry powder, and corncob powder to increase the strength by increasing the adhesion between foam glass granules,
It further includes an inorganic board laminated on one side of the base panel,
The inorganic board is a non-combustible sound-absorbing and heat-insulating panel, characterized in that it is one of wool cement board and rock wool board.
According to paragraph 1,
The inorganic binder is a non-combustible sound-absorbing and heat-insulating panel comprising 30 to 40% by weight of an organic binder, 5 to 8% by weight of cellulose, 3 to 6% by weight of a thickener, and the balance of the inorganic binder.
delete delete delete delete According to paragraph 1,
A non-combustible sound-absorbing and heat-insulating panel further comprising: another base panel interposed between the base panel and the inorganic board.