KR20230153862A - Finishing panel for the construction structure - Google Patents

Abstract

This invention relates to finishing panels for building structures.
For this purpose, this invention relates to a finishing panel for building structures in which an inner coupling part is provided on one side of a rectangular panel body and an outer coupling part is provided on the other side, and a functional sound insulation sheet of a certain thickness is provided on the bottom of the panel body. is provided, and the inner coupling part has a first web part by bending one end of the panel body upward, and has a first flange part by bending the end of the first web part inward. It is formed in a shape, and the outer coupling part is provided with a second web portion by bending the other end of the panel body upward, and the end of the second web portion is bent outward to provide a second flange, and the second flange is provided. The end of the branch is bent downward to provide a third web portion. It is characterized by being provided in a form.
Therefore, this invention is designed to reduce raindrop noise generated during rainy weather, prevent annual loss due to temperature changes, and prevent water droplets from forming by preventing condensation.

Description

Finishing panel for building structures {FINISHING PANEL FOR THE CONSTRUCTION STRUCTURE}

This invention relates to a finishing panel for building structures, and in particular, to a finishing panel for building structures that can reduce noise caused by rain during rainy weather by providing a functional sound insulation sheet on the bottom of the panel body.

In general, building structures are constructed by repeating the process of constructing slabs and walls on the frame, and the exterior walls are finished by attaching stone panels or metal panels, which are separate finishing materials.

In the case where the finishing member was a stone panel, the inconvenience of caulking was incidental, the difficulty in working during caulking, and the sealing leaking out of the gap after caulking caused the aesthetics to be unappealing.

In the case where the finishing member is a metal panel, each metal sheet is cut and bent to an appropriate size before construction in a process that involves repeating the process of cutting the metal sheet on site, bending it 2 or 3 times, and fixing the cut parts together. In addition to the problem of taking a long time to work depending on the order, there was a problem of heat loss occurring while raindrop noise was generated due to the thin single layer, and heat loss due to temperature changes.

Meanwhile, heat loss and noise were reduced through conventional technology using metal panels according to Patent Registration No. 10-1521626 (May 13, 2015), but the work time was reduced due to construction using anchor bolt connectors, fixing pieces, and clips. There was a problem that it took a lot of time and the cost increased.

Patent Registration Publication No. 10-1521626 (May 13, 2015)

This invention is designed to maintain high smoothness while reducing noise generated during rainy weather, and to prevent condensation while preventing heat loss due to temperature changes.

This invention relates to a finishing panel (A) for a building structure in which an inner coupling portion (20) is provided on one side of a panel body (10) having a rectangular shape and an outer coupling portion (30) is provided on the other side, A functional sound insulation sheet 40 of a certain thickness is provided on the bottom of the panel body 10, and the inner coupling portion 20 is formed by bending one end of the panel body 10 upward to form a first web portion 210. The end of the first web portion 210 is bent inward to provide a first flange portion 220. It is formed in a shape, and the outer coupling part 30 is provided with a second web part 310 by bending the other end of the panel body 10 upward, and the end of the second web part 310 is bent outward. It is bent to provide a second flange 320, and the end of the second flange portion 320 is bent downward to provide a third web portion 330. It is characterized by being provided in a form.

In addition, the first web portion 210 of the panel body 10 and the inner coupling portion 20 and the second web portion 310 of the outer coupling portion 30 are characterized in that they are provided with either a flat plate or a corrugated corrugated plate. do.

In addition, the functional sound insulation sheet 40 is characterized by being made of an eco-friendly rubber insulating material having a predetermined thickness and area.

In addition, the functional sound insulation sheet 40 contains 35 to 72 parts by weight of filler, 17 to 55 parts by weight of oil, 13 to 25 parts by weight of plasticizer, 4 to 12 parts by weight of foaming agent, and 1 to 5 parts by weight of flame retardant, based on 100 parts by weight of NBR rubber. It is characterized in that it is obtained by foaming a foaming composition containing 4 to 10 parts by weight of a heat stabilizer and 0.1 to 2 parts by weight of a vulcanizing agent.

In addition, an adhesive layer 410 is provided on the upper surface of the functional sound insulation sheet 40 and is adhesively fixed to the bottom surface of the panel body 10.

In addition, the panel body 10 is characterized by being provided with reinforcing step portions 110 bent upward and outward at both ends of the panel body 10, respectively.

In addition, the functional sound insulation sheet 40 is characterized in that micropores 420 are provided inside the functional sound insulation sheet 40.

In addition, the end of the first flange 220 of the inner coupling portion 20 is characterized in that a reinforcing liner 221 is provided overlapping and bent in a ⊃ shape toward the upper outer side.

This invention has the effect of reducing noise caused by raindrops generated during rainy weather by providing a functional sound insulation sheet on the bottom of the panel body.

In addition, this can achieve the effect of maintaining high smoothness.

In addition, since the functional sound insulation sheet is made of eco-friendly rubber insulation, it is possible to prevent heat loss due to temperature changes.

In addition, this can prevent condensation due to temperature changes and prevent water droplets from forming.

In addition, this invention can achieve the effect of facilitating construction by providing recessed joints and iron joints on both sides of the panel body.

Figure 1 is a perspective view showing a state in which one side of the finishing panel and the other side of the finishing panel for a building structure according to the present invention are combined.
Figure 2 is a perspective view showing the inside and outside of the finishing panel for building structures according to the present invention cut away.
Figure 3 is a longitudinal cross-sectional view showing a state in which one side of the finishing panel and the other side of the finishing panel for a building structure according to the present invention are combined.
Figure 4 is a perspective view showing another embodiment of the finishing panel for building structures according to the present invention.
Figure 5 is a longitudinal cross-sectional view showing a state in which one side of the finishing panel and the other side of the finishing panel of another embodiment of the finishing panel for a building structure according to the present invention are combined.
Figure 6 is a perspective view showing the inside and outside cut away in another embodiment of the finishing panel for building structures according to the present invention.
Figure 7 is a perspective view showing another embodiment of the finishing panel for building structures according to the present invention.
Figure 8 is a graph showing the change in thermal conductivity over time in Experimental Example 4.

An embodiment of this invention will be described with reference to the attached drawings as follows.

Figure 1 is a perspective view showing a state in which one side of the finishing panel and the other side of the finishing panel for a building structure according to the present invention are combined, and Figure 2 is a perspective view showing the inside and outside of the finishing panel for a building structure according to the present invention. It is a perspective view cut away, and Figure 3 is a longitudinal cross-sectional view showing a state in which one side of the finishing panel and the other side of the finishing panel for a building structure according to the present invention are combined.

The finishing panel (A) for building structures according to this invention reduces raindrop noise generated during rainy weather, prevents heat loss due to temperature changes, and also prevents condensation, preventing water droplets from forming. As shown in Figures 1 to 3, it is provided to prevent the panel body 10, the inner coupling part 20, and the outer coupling part 30.

Here, the panel body 10 is made of aluminum with a predetermined thickness, which reduces weight and increases corrosion resistance to prevent corrosion after construction, thereby extending the lifespan.

When a coating layer having a predetermined thickness is formed on the surface of the panel body 10, corrosion is further prevented, and when the coating layer has a specific color or pattern, the characteristics of the structure can be improved. You will be able to achieve greater harmony with your surroundings.

The panel body 10 is provided to have a rectangular shape, but it is preferable to use one that is long in the longitudinal direction and cut to suit the characteristics or length of the structure.

The inner coupling portion 20 allows the finishing panel A and another finishing panel A to be easily coupled in the width direction, and one end of the panel body 10 is bent upward to form a first web portion 210. ) is provided, and the end of the first web portion 210 is bent inward to provide a first flange portion 220, so that the overall It is provided to have a shape.

The outer coupling portion 30 is provided so that the inner coupling portion 20 can be inserted and surrounded in the process of easily coupling the finishing panel (A) with another finishing panel (A) in the width direction. The other end of the body 10 is bent upward to provide a second web portion 310, and the end of the second web portion 310 is bent outward to provide a second flange 320, and the second flange 320 is provided. The end of the branch 320 is bent downward to provide the third web portion 330, so that the overall It is provided to have a shape.

The third web portion 330 of the outer coupling portion 30 is bent inward when the first flange portion 220 of the lumbar coupling portion 30 is inserted, thereby forming the first flange portion 220. The lower part of the outer end can remain wrapped.

The first web portion 210 of the panel body 10 and the inner coupling portion 20 and the second web portion 310 of the outer coupling portion 30 are provided to have a flat shape, making manufacturing easy and simple. This can be provided.

Meanwhile, a functional sound insulation sheet 40 having a certain thickness is provided on the bottom of the panel body 10, thereby providing sound insulation, insulation, and preventing condensation.

For this purpose, the functional sound insulation sheet 40 is made of an eco-friendly rubber insulating material with a predetermined thickness and area, and is provided with an adhesive layer 410 on the upper surface, so that it is adhered to the bottom surface of the panel body 10 and remains fixed. As a result, it is possible to prevent lifting over time after construction.

The functional sound insulation sheet 40 may have a filled form, but in addition to this form, it is preferable to have a foam structure with micropores 420 therein. In this case, by providing an air layer through the micropores 420, heat conduction and noise transmission can be reduced as much as possible to achieve the effect of heat insulation and sound insulation, and the condensation phenomenon caused by the temperature difference between the inside and outside of the building being constructed can be effectively prevented. It has the advantage of being preventable.

The functional sound insulation sheet 40 has flame retardant and waterproof effects in addition to the above-described heat insulation, sound insulation, and condensation prevention effects. These effects are due to the characteristics of the components that make up the functional sound insulating sheet 40. Specifically, the functional sound insulating sheet 40 has these effects because it is obtained by foaming a foam composition that has waterproof and flame retardant effects.

The functional sound insulation sheet 40 can be obtained by foaming a foam composition containing NBR rubber (acrylonitrile-butadiene rubber), filler, oil, plasticizer, foaming agent, flame retardant, heat stabilizer, and vulcanizing agent.

Specifically, a composition manufacturing step of putting raw materials in a mixer and stirring them to prepare a foamed composition including NBR rubber, filler, oil, plasticizer, foaming agent, flame retardant, heat stabilizer, and vulcanizing agent; A sheet manufacturing step of molding the foam composition into a sheet shape; A foaming step of foaming the sheet; and a post-processing step.

The composition manufacturing step is a step of preparing a foaming composition containing NBR rubber, filler, oil, plasticizer, foaming agent, flame retardant, heat stabilizer, and vulcanizing agent by putting raw materials in a mixer and stirring them.

The foam composition contains 35 to 72 parts by weight of filler, 17 to 55 parts by weight of oil, 13 to 25 parts by weight of plasticizer, 4 to 12 parts by weight of foaming agent, 1 to 5 parts by weight of flame retardant, and 4 parts by weight of heat stabilizer, based on 100 parts by weight of NBR rubber. It may include ~10 parts by weight and 0.1 to 2 parts by weight of a vulcanizing agent.

The NBR rubber has excellent elasticity and has particularly excellent mechanical properties and wear resistance compared to other rubbers, preventing damage to the functional sound insulation sheet 40 and extending its lifespan. In addition, since water resistance and oil resistance are superior to other rubbers, waterproofing performance can be provided, and as a result, even if the panel body 10 is damaged, durability due to the functional sound insulation sheet 40 layer can be maintained.

The filler is added to improve the physical strength of the functional sound insulation sheet 40, stabilize its dimensions, and prevent thermal deformation by increasing resistance to heat. Particulate materials such as talc, diatomaceous earth, glass beads, calcium carbonate, alumina, zirconia, ceramic beads, etc. may be used as such fillers.

The equivalent diameter of the filler is preferably 0.1 to 5㎛, and when it has this particle size, it can be uniformly dispersed within the foam composition to ensure constant physical properties over the entire area, and prevent problems such as particle separation or unevenness. Therefore, it is preferable to use a filler having the above-described particle size.

The filler can be used in an amount ranging from 35 to 72 parts by weight per 100 parts by weight of NBR rubber. If it is included in less than 35 parts by weight, it is difficult to secure sufficient strength, and if it is included in more than 72 parts by weight, it may be damaged due to lack of adhesion. Problems such as filler detachment may occur, so it is preferable that the weight be included within the above-mentioned weight range.

The oil is a substance added to lower the viscosity of the foaming composition and uniformly disperse and mix the components included in the foaming composition, and is a group consisting of mineral oil, paraffinic oil, naphthenic oil, aromatic oil, and process oil. At least one or more selected from may be used.

Oil may be included in an amount of 17 to 55 parts by weight based on 100 parts by weight of NBR rubber. If it is included in less than 17 parts by weight, the viscosity of the foam composition is too high, so each component cannot be mixed uniformly, and foaming efficiency is reduced. . On the other hand, if it exceeds 55 parts by weight, the viscosity of the foaming composition is so low that the particles cannot be mixed uniformly and layer separation occurs. As a result, the foaming agent is present only in some areas, which may cause non-uniform foaming, so the above-mentioned weight It is desirable to include it within the scope.

The plasticizer is a substance added to increase the compatibility of NBR rubber and mix the foam composition more uniformly. In the present invention, the plasticizer is at least one of dioctyl terephthalate, epoxidized soybean oil, and acetylated monoglyceride. More than one may be used. Unlike the commonly used dioctyl phthalate, diisononyl phthalate, and diisodecyl phthalate, these materials are safe materials that are not harmful to the human body or the environment and have the advantage of being environmentally friendly.

The plasticizer may be included in an amount of 13 to 25 parts by weight based on 100 parts by weight of NBR rubber. If it is included in less than 13 parts by weight, plasticizing efficiency is reduced, and if it is included in more than 25 parts by weight, the amount of each component is reduced due to excessive reduction in viscosity. Since dispersibility may decrease, it is preferable that it is contained within the above-mentioned weight range.

The foaming agent is an ingredient added to generate gas within the foam composition and form numerous bubbles within the foam composition, thereby changing the foam form and greatly improving elasticity. Various types of commonly used foaming agents may be used as the foaming agent, but azodicarbonamide may be preferably used.

The foaming agent can be used in an amount of 4 to 12 parts by weight based on 100 parts by weight of NBR rubber. If it is included in less than 4 parts by weight, sufficient foam formation is not achieved, making it difficult to obtain sufficient heat insulation, sound insulation, and condensation prevention effects. If it is included in excess, it is difficult to secure uniform physical properties in the entire area of the functional sound insulating sheet 40 due to the excessive amount of foam, it is difficult to form it to the desired size and density, and the functional sound insulating sheet (40) is difficult to form due to excessive heat generated during the foaming process. 40) may be damaged or have poor physical properties, so it is preferable that it be contained within the above-mentioned content range.

The flame retardant is a component added to provide fire resistance to the functional sound insulation sheet 40, and at least one of a phosphorus-based flame retardant, an inorganic hydroxyl-based flame retardant, a boric acid-based flame retardant, a silicic acid-based flame retardant, and a carbonate-based flame retardant may be used.

Phosphorus-based flame retardants function to prevent the spread of fire, and phosphorus-based flame retardants include phosphorus, phosphate, phosphine oxide, phosphine oxide diol, phosphite, and phosphonate. Inorganic hydroxide-based flame retardants provide fire resistance by releasing water molecules through heat and providing a cooling effect. For example, aluminum hydroxide, magnesium hydroxide, etc. may be used. Borate, ammonium borate, etc. can be used as boric acid-based flame retardants, potassium silicate, magnesium silicate, etc. can be used as silicate-based flame retardants, and potassium carbonate, calcium carbonate, etc. can be used as carbonic acid-based flame retardants.

As such a flame retardant, it is preferable to use a phosphorus-based flame retardant, which has a particularly excellent flame retardant effect. In order to provide a sufficient flame retardant effect and not impair the physical properties of the functional sound insulation sheet 40, it is used in an amount of 1 to 5 parts by weight based on 100 parts by weight of NBR rubber. It is desirable to include it.

The heat stabilizer is an ingredient added to improve the heat resistance of the functional sound insulating sheet 40, and prevents damage to the functional sound insulating sheet 40 due to heat generated during the manufacturing process or heat generated during long-term exposure to sunlight or high temperatures during use. It is added to do this.

The heat stabilizer may include, but is limited to, at least one selected from the group consisting of benzotriazole, phenol antioxidant, alkylated monophenol, alkylthiomethylphenol, hydroquinone, alkylated hydroquinone, hydroxybenzyl, and triazine. It is not possible, and in order to ensure sufficient physical strength, heat resistance, weather resistance and durability, it is preferably included in an amount of 4 to 10 parts by weight based on 100 parts by weight of NBR rubber.

The vulcanizing agent is added to cross-cure the NBR rubber particles to form a skeleton with improved physical strength. This vulcanizing agent may be included in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of NBR rubber. When included in this weight range, the effect of improving physical strength through the vulcanization reaction is sufficiently obtained, and the effect of reducing elasticity or other physical properties due to excessive curing reaction is obtained. Deterioration can be minimized.

Sulfur-based vulcanizing agents may be used as vulcanizing agents, for example, inorganic vulcanizing agents such as powdered sulfur, insoluble sulfur, precipitated sulfur, and colloidal sulfur, tetramethylthiuram disulfide, tetraethylthiuram disulfide, and dithiodimorpholine. Other sulfur vulcanizing agents such as organic vulcanizing agents, elemental sulfur, amine disulfide, and polymeric sulfur may be used, but are not limited thereto.

The foam composition may further include 0.5 to 2.4 parts by weight of a reaction regulator based on 100 parts by weight of NBR rubber. The reaction regulator is a component added to control the foaming function of the foam composition and improve the durability of the finally produced functional sound insulation sheet 40. As the reaction regulator is added, the foam stability is improved when the foam composition is foamed, thereby controlling the amount of heat generated, and the size of the foamed bubbles is made constant to form a uniform distribution of voids in the functional sound insulation sheet 40, thereby improving sound insulation and heat insulation effects. It can be improved, and the durability of the functional sound insulation sheet 40 is improved so that these sound insulation and heat insulation effects are stably expressed even after hardening over a long period of time.

As such a reaction regulator, a mixture of 4-hydroxylauric acid anilide and 1,3-bis(3-aminopropyl)-tetramethyldisiloxane at a weight ratio of 1:0.2 to 0.8 can be used, and the reaction regulator can be used to foam. If it is included in the composition in less than 0.5 parts by weight, the above-described effect cannot be obtained, and if it exceeds 2.4 parts by weight, the foaming performance is reduced and the vulcanization reaction occurs unstable, thereby significantly deteriorating the function of the functional sound insulation sheet 40. Since problems arise, it is desirable that the weight be contained within the above-mentioned weight range.

If the weight ratio of each component included in the reaction regulator is outside the above range, the above-described effect due to the reaction regulator may not be sufficiently achieved, or side effects may occur. Therefore, it is preferable to use a reaction regulator mixed in the above-mentioned weight ratio.

These raw ingredients are mixed and stirred in a mixer to form a foaming composition. Since molding has not yet occurred at this stage, it can be stirred at room temperature (15~38℃) to prevent foaming, and the stirring is carried out for 20~20℃. It is desirable to carry out 120 minutes.

The sheet manufacturing step is a step of molding the foam composition into a sheet shape, and may be a step of passing the foam composition between rollers spaced at predetermined intervals or compressing the foam composition into a sheet shape. Preferably, the sheet is manufactured by strongly compressing the foam composition with a roller, and the sheet can be formed by providing a cooling means at the rear end to cool the heat generated by the compression. In this case, the production process is shortened, which has the advantage of increasing production volume.

The foaming step may be a step of foaming the sheet by applying heat to the sheet, and may be a step of foaming the sheet by heating the sheet to 170-280°C. This step can be performed by passing the sheet through a heated chamber, or by cutting the sheet into a predetermined shape and then putting it into an extrusion molding machine and heating it. Through this step, the sheet is molded into the form of a foam sheet.

The post-processing step is a step of manufacturing the functional sound insulation sheet 40 by cooling the foam sheet obtained through the foaming step and cutting it into a predetermined shape. In this step, the foam sheet is cut into a shape identical to or similar to the shape of the bottom of the panel body 10, and the functional sound insulation sheet 40 can be obtained through this step.

An adhesive layer 410 can be formed on the upper surface of the functional sound insulation sheet 40 obtained through this step, and it can be firmly adhered to the panel body 10 through this adhesive layer 410. The adhesive layer 410 may be formed by attaching a double-sided adhesive film or applying an adhesive, and the adhesive material used here may be a conventional adhesive material having adhesive properties.

Figure 4 is a perspective view showing another embodiment of the finishing panel for building structures according to the present invention, and Figure 5 is a finishing panel on one side and the other finishing panel of another embodiment of the finishing panel for building structures according to the present invention. This is a vertical cross-sectional view showing the combined state.

In this invention, the first flange portion 220 provided in the panel body 10 and the inner coupling portion 20 is designed to have a flat shape, but other than this shape, as shown in Figure 4, the inner coupling portion The end of the first flange 220 of (20) may be further provided with a sound insulation reinforcement liner 221 that is bent to overlap in a ⊃ shape toward the upper outer side.

In this case, since the sound insulation reinforcement liner 221 is bent in two layers, it is possible to block rainwater from entering from the outside while maintaining strength.

Figure 6 is a perspective view showing the inside and outside cut away in another embodiment of the finishing panel for building structures according to the present invention.

In this invention, the first web portion 210 of the panel body 10 and the inner coupling portion 20 and the second web portion 310 of the outer coupling portion 30 are made to have a flat shape, but in addition to this shape, Figure 6 And as shown in Figure 7, it is preferable to be provided with a corrugated plate.

This is to increase the strength of the panel body 10 by repeatedly bending it in a wave shape compared to when the panel body 10 has a flat shape, and to obtain a high aesthetic sense through a unique appearance. am. This panel body (100) can have various shapes other than the shape of a corrugated plate.

In addition, the panel body 10 located between the inner coupling part 20 and the outer coupling part 30 was changed from a flat shape in the width direction to a wavy corrugated plate. However, in addition to this shape, as shown in Figure 7. , Reinforcement step portions 110 bent upward and bent outward may be provided at both ends of the panel body 10, respectively.

In this case, while the strength of the inner part of the inner coupling part 20 and the inner part of the outer coupling part 30 can be further increased by the reinforcing step part 110, rainwater sometimes flows into the first and second web parts ( 210) It is possible to prevent it from flowing into the interior along the inner wall of (320).

Hereinafter, the specific actions and effects of the present invention will be explained through an embodiment of the present invention. However, this is presented as a preferred example of the present invention, and the scope of the present invention is not limited by the examples.

[Manufacturing example]

First, 440g of NBR rubber, 210g of filler calcium carbonate (equivalent diameter 0.5~2㎛), 94g of paraffin oil, 47g of process oil, 80g of dioctyl terephthalate plasticizer, 40g of azodicarbonamide foaming agent, 15g of phosphine oxide flame retardant, alkylated hydrochloride. 28g of quinone heat stabilizer, 3g of sulfur vulcanizing agent, and 4g of reaction regulator were added to a mixer and mixed for 40 minutes at room temperature (22±2°C) to prepare a foaming composition. At this time, a mixture of 4-hydroxylauric acid anilide and 1,3-bis(3-aminopropyl)-tetramethyldisiloxane in a ratio of 1:0.5 was used as a reaction regulator.

Next, the foam composition was molded into a sheet with a thickness of 0.2 mm, heated to 200° C. to foam the sheet, then cooled and cut to prepare a functional sound insulation sheet (40) with a thickness of about 10 mm.

[Experimental Example 1]

In order to confirm the basic quality of the functional sound insulation sheet 40 manufactured in the manufacturing example, the physical and chemical properties were measured according to the standard KS M 6962:2012 and the standard KS M ISO 4589-2:2016, and the results are shown in Table 1. indicated.

Test Items unit Based on KS M 6962 Test result Formaldehyde emission amount mg/L 0.3 or less Not detected oxygen index LOI 28 and above 38.7 Apparent density g/cm ³ 0.040 or higher 0.041 thermal conductivity W/(m·K) 0.035 or less 0.034 absorption amount g/100cm ² 1.0 or less 0.12 Dimensional stability (horizontal) % 7.0 and below 0.52 Dimensional stability (vertical) % 7.0 and below 0.32 Compression strain rate % 3.0 or lower 13 water vapor permeability coefficient ng/ ^m2sPa 6.0 and below 2

Referring to the results in Table 1 above, it can be confirmed that the functional sound insulation sheet 40 of the present invention satisfies the KS M 6962 standard and is of excellent quality. Specifically, it can be confirmed that it is environmentally friendly as it does not emit formaldehyde, has excellent flame retardancy due to its high oxygen index, and has excellent insulation due to its low thermal conductivity. In addition, it has excellent insulation maintenance ability due to low water absorption, excellent heat resistance and durability due to low dimensional stability and compression set rate, and low moisture vapor permeability coefficient, so it can be seen that the insulation maintenance performance is also excellent.

[Experimental Example 2]

A functional sound insulation sheet (40) with a thickness of about 13 mm was manufactured in the same manner as in the manufacturing example, and a flame spread test was conducted on three specimens in accordance with the standard ISO 5658-2:2006/Amd.1:2011 to confirm its fire resistance. After performing, the average value of the experimental results for each specimen is shown in Table 2.

division average thickness 13.7mm total exam time 633s ignition time 2s flame stopping time 32s flame propagation length 70mm Critical heat flux CFE during fire extinguishment 47.0 kw/ ^m2 Sustained combustion heat Qsb 0.14 MJ/ ^m2 Total heat released Qt 0.1 MJ Highest heat release rate Qp 0.2kW

Referring to the results in Table 2, it can be seen that the functional sound insulation sheet 40 of the present invention has excellent fire resistance.

[Experimental Example 3]

The functional sound insulating sheet 40 was manufactured using the same method as in the manufacturing example, but the functional sound insulating sheet was manufactured by varying the content of the heat stabilizer included therein as shown in Table 3, and the tensile strength of each functional sound insulating sheet was and elongation were measured according to the IEC-60811-1-1 standard, and dimensional stability was measured in the same manner as in Example 1, and the results are shown in Table 3. In Table 3, the content of the heat stabilizer refers to the weight ratio based on 100 parts by weight of NBR rubber.

Psalm No. Heat stabilizer content
(part by weight) tensile strength
(kgf/ ^cm3 ) elongation
(%) Dimensional stability
(width, %) Dimensional stability
(length, %) One - 55.8 423 0.68 0.44 2 3.1 69.4 459 0.62 0.42 3 4.5 81.8 520 0.55 0.35 4 6.4 82.5 552 0.52 0.32 5 8.9 82.9 564 0.53 0.30 6 10.7 83.0 569 0.53 0.29

Referring to the results in Table 3, it can be seen that as the heat stabilizer content increases, the tensile strength and elongation improve, strengthening the strength, and the dimensional stability decreases, resulting in excellent durability. However, as in specimens No. 1 and 2, If the heat stabilizer is not included or its content is insufficient, it can be confirmed that the tensile strength and elongation are significantly reduced, making it difficult to secure strength, and the dimensional stability measurement results are rapidly increased, confirming that dimensional deformation easily occurs. This problem is believed to have occurred because the basic structural damage caused by heat applied during the manufacturing process of the functional sound insulation sheet 40 was not sufficiently protected due to a lack of heat stabilizer content.

Therefore, as a result of this experiment, it was confirmed that the content of the heat stabilizer added when manufacturing the functional sound insulation sheet 40 is preferably 4 parts by weight or more based on 100 parts by weight of NBR rubber.

In addition, if more than 10 parts by weight of the heat stabilizer is included, no additional strength improvement or dimensional stability is achieved, so for economic efficiency and to prevent problems caused by excessive heat stabilizer, the amount is 4 to 10 parts by weight per 100 parts by weight of NBR rubber. It can be confirmed that it is more desirable to include it.

[Experimental Example 4]

The functional sound insulating sheet of Example 1 was manufactured in the same manner as in the Preparation Example, and a functional sound insulating sheet (40) with a thickness of 25 mm was manufactured after foaming using the same method as in the Preparation Example, but the reaction regulator was not included in Example 2. The functional sound insulating sheet of Comparative Example 1 and the functional sound insulating sheet of Comparative Example 1 were manufactured in which 80 g of glass fiber was added as an additional heat insulator instead of the reaction modifier and foaming agent, and the thermal conductivity of each of these sound insulating sheets over time was measured, and the results are shown in Figure 8. Shown. Specifically, each sound insulation sheet was stored under the same conditions for 10 months, and the thermal conductivity was measured at 2-month intervals for 10 months to measure the change in thermal conductivity over time.

This experiment is an experiment to evaluate the insulation maintenance ability over time. Referring to the results of FIG. 8, the insulation performance of Examples 1 and 2 using foam is basically better than that of sound insulation sheets using glass fiber as an insulation agent. It was confirmed that better expression was achieved over a long period of time.

In particular, in the case of Example 1, the initial insulation performance and long-term insulation durability were significantly superior to those of Example 2. This is because the foaming and vulcanization reactions are controlled by adding a reaction regulator, so that bubbles of a certain size are uniformly dispersed in the foam. This is believed to be the result because the basic skeleton was formed to have a stable and highly durable structure.

Therefore, from the results of this experiment, it was confirmed that it is preferable to add a reaction regulator when manufacturing the functional sound insulation sheet 40.

[Experimental Example 5]

A functional sound insulation sheet (40) was prepared using the same method as in the production example, except that 4-hydroxylauric acid anilide (A) and 1,3-bis (3-aminopropyl) -tetramethyldi, which are used as reaction regulators, were used. It was manufactured by varying the weight ratio of siloxane (B), and the tensile strength and elongation of each functional sound insulation sheet were measured in the same manner as Example 3, and the absorption amount and thermal conductivity were measured, and the results are listed in Table 4.

A:B
(weight ratio) tensile strength
(kgf/ ^cm3 ) elongation
(%) absorption amount
(g/100cm ² ) thermal conductivity
(W/(m·K)) Example 3 1:0 78.6 540 0.43 0.042 Example 4 1 : 0.2 80.4 546 0.11 0.033 Example 5 1:0.5 82.5 552 0.12 0.034 Example 6 1:0.8 85.4 566 0.14 0.035 Example 7 1:1.1 62.5 363 0.25 0.038 Example 8 0:1 60.1 355 0.28 0.040

Referring to the results in Table 4, Examples 4 to 6 showed superior tensile strength and elongation characteristics than other examples, and significantly lower water absorption and heat conductivity. Specifically, in the case of Example 3, the absorption and thermal conductivity characteristics were poorer than those of these examples, resulting in poor insulation characteristics. In particular, in the case of thermal conductivity, there was a problem of exceeding the standard value of 0.035 W/(m·K). On the other hand, in the case of Examples 7 and 8, the tensile and elongation characteristics were significantly lower than those of Examples 4 to 6, and the thermal conductivity also had a problem of exceeding the standard value. From these experimental results, the weight ratio of each component included in the reaction regulator was determined. It was confirmed that the reaction control performance varies depending on the weight ratio, and that if it is outside the specific weight ratio range, it causes a more unstable reaction and reduces the strength and insulation properties of the functional sound insulation sheet.

Therefore, as a result of this experiment, a reaction regulator was added when manufacturing the functional sound insulation sheet 40 to improve performance such as strength, durability, insulation, and sound insulation by controlling the foaming and crosslinking reactions, but 4-hydroxylase, which is used as a reaction regulator, was added. It was confirmed that it is preferable to use a mixture of uric acid anilide and 1,3-bis(3-aminopropyl)-tetramethyldisiloxane at a weight ratio of 1:0.2 to 0.8.

This invention is not limited to the specific embodiments and descriptions described above, and various modifications may be made by anyone skilled in the art without departing from the gist of the invention as claimed in the claims. is possible, and such modifications fall within the scope of protection of this invention.

10: Panel body 20: Inner joint
30: Outer joint 40: Functional sound insulation sheet
110: Reinforcement step part 210: First web part
220: 1st flange part 310: 2nd web part
320: 2nd flange 330: 3rd web part
410: Adhesive layer 420: Micropores

Claims (5)

In the finishing panel (A) for building structures, which is provided with an inner coupling part 20 on one side of the panel body 10 having a rectangular shape and an outer coupling part 30 on the other side,
A functional sound insulation sheet 40 of a certain thickness is provided on the bottom of the panel body 10, and the inner coupling portion 20 is formed by bending one end of the panel body 10 upward to form a first web portion 210. is provided, and the end of the first web portion 210 is bent inward to provide a first flange portion 220. It is formed in a shape, and the outer coupling part 30 is provided with a second web part 310 by bending the other end of the panel body 10 upward, and the end of the second web part 310 is bent outward. It is bent to provide a second flange 320, and the end of the second flange portion 320 is bent downward to provide a third web portion 330. A finishing panel for building structures characterized by being provided in a shape.
According to paragraph 1,
A construction characterized in that the first web portion 210 of the panel body 10 and the inner coupling portion 20 and the second web portion 310 of the outer coupling portion 30 are provided with either a flat plate or a corrugated plate. Finishing panel for structures.
According to paragraph 2,
The functional sound insulation sheet (40) is a finishing panel for building structures, characterized in that it is made of an eco-friendly rubber insulating material having a predetermined thickness and area.
According to paragraph 3,
The functional sound insulation sheet (40) contains 35 to 72 parts by weight of filler, 17 to 55 parts by weight of oil, 13 to 25 parts by weight of plasticizer, 4 to 12 parts by weight of foaming agent, 1 to 5 parts by weight of flame retardant, based on 100 parts by weight of NBR rubber. A finishing panel for building structures, which is obtained by foaming a foaming composition containing 4 to 10 parts by weight of a heat stabilizer and 0.1 to 2 parts by weight of a vulcanizing agent.
According to paragraph 1,
A finishing panel for a building structure, characterized in that an adhesive layer (410) is provided on the upper surface of the functional sound insulation sheet (40) and is adhesively fixed to the bottom surface of the panel body (10).

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