KR102625264B1 - Flame retardant ceiling panel using waste fiber - Google Patents

Abstract

The present invention relates to flame-retardant wall and ceiling panels using waste fibers, and for this purpose, a flame-retardant board made of paper and impregnation composition manufactured using a fiber material containing waste fibers; and a structure attached to the other side of the flame-retardant board. Sound-absorbing sheets that cancel out noise transmitted from; and an HPM board attached to the exposed surface of the flame retardant board to increase rigidity, wherein the flame retardant board includes a first noise inducing hole that introduces noise, and the noise introduced through the first noise inducing hole is offset by diffuse reflection. It further includes a second noise-inducing hole whose size is expanded through a tapered surface formed between the first noise-inducing hole, and the impregnation composition contains 20 to 30% by weight of triphenyl phosphate (TPP) and aluminum hydroxide (Al ( OH)3) A flame retardant consisting of 50 to 60% by weight and 10 to 20% by weight of decabromodiphenylethane (DBDPE) and 10 to 20% by weight of polybutylacrylate and 80 to 90% by weight of polymethyl methacrylate. It is made of silica surface-treated by mixing 80 to 90 mol% of copolymer (poly(n-butylacrylate)-b-poly(methylmethacrylate), PBA-PMMA) and 10 to 20 mol% of silica particles, and the surface of the HPM board It is characterized in that an antibacterial paint layer is applied.

Description

Flame retardant wall and ceiling panels using waste fiber {FLAME RETARDANT CEILING PANEL USING WASTE FIBER}

The present invention relates to flame-retardant walls and ceiling panels using waste fibers. More specifically, flame retardancy is strengthened through a flame-retardant board using waste fibers and a sound-absorbing sheet impregnated with a melamine-based flame retardant aqueous solution, and in addition, the sound-absorbing sheet and the flame-retardant board are Not only can noise be canceled out in multiple stages through the formed noise induction hole, but the rigidity is increased through the HPM board attached to the flame retardant board, and various bacteria and fungi can be suppressed through the antibacterial paint layer applied to the HPM board. This relates to flame-retardant wall and ceiling panels using waste fiber.

In general, in the case of apartments or multi-family houses, which are residential spaces consisting of two floors, various sounds from the lower floor are transmitted to the upper floor, or impact sounds from the upper floor are transmitted to the lower floor, causing disruption to sleep and activities in the residential space.

To solve these obstacles, the floor surface of a reinforced concrete building is basically covered with lightweight foam concrete on a reinforced concrete slab and then finished with cement mortar or artificial stone mortar.

However, although the lightweight foam concrete built on the upper surface of the reinforced concrete slab is responsible for attenuating noise, the noise attenuation effect of lightweight foam concrete has a problem in that it does not properly remove noise caused by light and heavy impacts.

To solve this problem, various types of sound-absorbing means installed on the ceiling have been developed, but these can only simply absorb the generated noise, but cannot block the noise, so the generated noise is actually transmitted to residents in the space. It is impossible to prevent it from being transmitted as is.

In order to solve the above-mentioned problems, Korea Public Utility Model No. 20-2011-0004627 and Korea Patent Publication No. 10-2011-0092422 disclose a sound-absorbing panel with perforations and a ceiling finishing panel with sound-absorbing holes, respectively.

However, these conventional documents were produced with a focus on noise, so they were very vulnerable to fire.

Therefore, there is a demand for ceiling panels that absorb noise and have enhanced flame retardancy.

Republic of Korea Public Utility Model No. 20-2011-0004627 Republic of Korea Patent Publication No. 10-2011-0092422

The present invention was developed in consideration of the above problems, and the first purpose of the present invention is to strengthen flame retardancy through a flame retardant board using waste fiber and a sound-absorbing sheet impregnated with a melamine-based flame retardant aqueous solution, and to provide sound-absorbing sheets and flame retardants. The aim is to provide flame-retardant wall and ceiling panels using waste fiber that can cancel out noise in multiple stages through noise inducing holes formed in the board.

The second object of the present invention is to provide a flame retardant wall using waste fiber that increases rigidity through an HPM board attached to a flame retardant board and also suppresses various bacteria and fungi with an antibacterial paint layer applied to the HPM board. Providing ceiling panels.

According to the features for achieving the above-described object, the first invention relates to flame-retardant walls and ceiling panels using waste fibers, and for this purpose, papermaking and impregnation compositions manufactured using fiber materials containing waste fibers are used. A flame retardant board made of; And, a sound-absorbing sheet attached to the other side of the flame retardant board to offset noise transmitted from the structure; and an HPM board attached to the exposed surface of the flame retardant board to increase rigidity, wherein the flame retardant board is composed of a plurality of stacked pieces, and the sound wave guide hole of the flame retardant board disposed at the bottom is larger than the sound wave guide hole disposed at the top. has an expanded structure, and the impregnating composition contains 20 to 30% by weight of triphenyl phosphate (TPP), 50 to 60% by weight of aluminum hydroxide (Al(OH)3), and 10 to 20% by weight of decabromodiphenylethane (DBDPE). A flame retardant consisting of and a copolymer composed of 10 to 20% by weight of polybutylacrylate and 80 to 90% by weight of polymethyl methacrylate (poly(n-buthylacrylate)-b-poly(methylmethacrylate), PBA-PMMA) 80 to 80%. It is made of surface-treated silica mixed with 90 mol% and 10 to 20 mol% of silica particles, and an antibacterial paint layer is applied to the surface of the HPM board.

The second invention, in the first invention, is characterized in that the fiber material is made of a fiber material polished through a beating process, and the flame retardant board is manufactured by impregnating the paper paper with the impregnating composition and then heat-pressing it.

In the third invention, in the first invention, the antibacterial paint layer is made by mixing 10 to 20 parts by weight of copper oxide with 100 to 200 parts by weight of resin, and 2 to 3 parts by weight of polyisocyanate is used as a curing agent, but dioctyl phthalate is used. It is characterized in that it is composed of 3 to 4 parts by weight of additives including (DOP) and dibutyl phthalate (DBP).

The fourth invention, in the first invention, is characterized in that 5 to 10 parts by weight of perlite and 2 to 5 parts by weight of vermiculite powder are further mixed into the papermaking paper based on 100 parts by weight of the papermaking.

In the fifth invention, in the first invention, the sound-absorbing sheet includes the steps of impregnating the nonwoven fabric in an aqueous solution containing tetraorthosilicate (TEOS) and 1N hydrochloric acid as an acid catalyst, and the impregnated nonwoven fabric so that silica particles are distributed within the fiber tissue. A drying step, impregnating the dried nonwoven fabric again with a melamine-based flame retardant aqueous solution so that the silica and flame retardant are distributed to the nonwoven fabric, then taking out and drying the nonwoven fabric, and stacking three or more pieces of the dried nonwoven fabric to form a sheet. It is characterized by being manufactured.

According to the flame-retardant wall and ceiling panel using waste fiber of the present invention, flame retardancy against fire can be strengthened through a flame-retardant board using waste fiber and a sound-absorbing sheet impregnated with an aqueous melamine-based flame retardant solution.

In addition, it has the effect of minimizing noise through noise-inducing holes formed in the sound-absorbing sheet and flame retardant board.

In addition, the rigidity is increased through the HPM board attached to the flame retardant board, and the antibacterial paint layer applied to the HPM board is effective in suppressing various bacteria and fungi.

Figure 1 is a perspective view of a flame-retardant wall and ceiling panel using waste fiber according to the present invention;
Figure 2 is a perspective view showing the flame retardant board extracted from Figure 1 and a bottom perspective view showing the bottom;
Figure 3 is a configuration diagram showing the sound wave guidance hole of various embodiments;
Figure 4 is a conceptual diagram showing noise cancellation according to a cross-sectional view;
Figure 5 is a configuration diagram showing the connection state between flame-retardant walls and ceiling panels using waste fiber according to the present invention;
Figure 6 is a photograph showing the results of a direct combustion test on a test specimen manufactured using a membrane panel (a), a flame retardant board (b) of the present invention, and a wood panel (c).

The following objects, other objects, features and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosure will be thorough and complete and so that the spirit of the invention can be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, 'comprise' and/or 'comprising' do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing specific embodiments below, various specific details have been written to explain the invention in more detail and to aid understanding. However, a reader who has sufficient knowledge in the field to understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known but are not significantly related to the invention are not described in order to prevent confusion in describing the invention.

Hereinafter, the flame-retardant wall and ceiling panel using waste fiber according to the present invention will be described in detail along with the attached drawings.

Figure 1 is a perspective view of a flame-retardant wall and ceiling panel using waste fiber according to the present invention, Figure 2 is a perspective view showing the flame retardant board extracted from Figure 1 and a bottom perspective view showing the bottom, Figure 3 is a sound wave guided hole of various embodiments. FIG. 4 is a conceptual diagram showing noise cancellation according to a cross-sectional view, FIG. 5 is a configuration diagram showing the connection state between a flame-retardant wall and a ceiling panel using waste fiber according to the present invention, and FIG. 6 is a membrane panel. (a), a photograph showing the results of a direct fire combustion test on a test specimen manufactured using the flame retardant board (b) and wood panel (c) of the present invention.

As shown in Figures 1 to 5, the present invention enhances flame retardancy through a flame retardant board made of a papermaking and impregnation composition containing waste fibers, and can cancel noise in multiple stages as well as have antibacterial properties. It relates to a flame-retardant wall and ceiling panel (100) using waste fiber that can suppress various bacteria and fungi.

The flame-retardant wall and ceiling panel 100 using waste fiber of the present invention is largely composed of three parts, which may be composed of a sound-absorbing sheet 20, a flame retardant board 10, and an HPM board 30.

The sound-absorbing sheet 20 is attached to the other side of the flame retardant board 10 through heat bonding or adhesive and is in close contact with the ceiling of the structure.

The sound-absorbing sheet 20 may be made by laminating non-woven fabric impregnated with a melamine-based flame retardant aqueous solution to enhance flame retardant performance.

More specifically, a step of impregnating a nonwoven fabric in an aqueous solution containing tetraorthosilicate (TEOS) and 1N hydrochloric acid as an acid catalyst, drying the impregnated nonwoven fabric so that silica particles are distributed within the fiber tissue, and adding silica and It can be manufactured by impregnating the dried nonwoven fabric again with a melamine-based flame retardant aqueous solution so that the flame retardant is distributed, then taking it out and drying it, and laminating three or more sheets of the dried nonwoven fabric and forming them into a sheet.

The sound-absorbing sheet 20 manufactured in this way is not only flame retardant, but also functions to cancel out noise using the pores of the non-woven fabric.

It is a structure in which a plurality of sound wave induction holes 11 are formed to guide sound waves of the flame retardant board 10.

At this time, the flame retardant board 10 is composed of a plurality of stacks, and the sound wave induction hole 11 of the flame retardant board disposed at the lower portion has a larger size than the acoustic wave induction hole 11 disposed at the upper portion.

As shown in FIG. 4, the flame retardant boards 10 stacked together in this way have different sizes of the sound wave induction holes 11. This is a structure in which an internal space 12 in the form of unevenness with steps formed as in " is formed.

Therefore, when sound waves flow in through the small sound wave induction hole 11, irregular diffuse reflection occurs in the step-shaped internal space 12 in the form of steel, which is converted into heat energy, thereby canceling out the sound waves.

In addition, as shown in FIG. 3, the shape of the sound wave induction hole 11 formed in the flame retardant board 10 is square, but in other embodiments, it may be composed of any one of triangular, pentagonal, hexagonal, heptagonal, octagonal, and circular shapes. Of course.

In addition, the flame retardant board 10 can be provided with structural features that can increase mechanical properties, bending fracture strength, and durability through the sound wave induction hole 11.

The HPM (High Pressure Melamine) board 30 is attached to the exposed surface of the flame retardant board 10, and is made by impregnating and laminating resin on a pattern-printed paper or fibrous substrate and compression molding it through a press. It is resistant to heat and scratches. It has very strong characteristics.

Through this, the rigidity of the wall and ceiling panel 100 can be increased and a sense of luxury can be added.

At this time, an antibacterial paint layer 40 is applied to the surface of the HPM board 30, and the antibacterial paint layer 40 functions to sterilize and prevent the growth of bacteria and mold.

Here, the antibacterial paint layer 40 is made by mixing 10 to 20 parts by weight of copper oxide with 100 to 200 parts by weight of resin, and 2 to 3 parts by weight of polyisocyanate is used as a hardener, but dioctyl phthalate (DOP) and dibutyl phthalate are used. (DBP) is composed of 3 to 4 parts by weight of additives mixed together.

Here, dioctyl phthalate (DOP) and dibutyl phthalate (DBP) function to provide flexibility, adhesion, cold resistance, and impact resistance to a coating film formed using an antibacterial paint.

As shown in FIG. 5, the flame-retardant wall and ceiling panels 100 using waste fiber of the present invention can be easily connected to each other by forming fitting protrusions 50 on the edges so that they can be connected to each other.

Below, the physical properties of the flame retardant board will be described in detail.

The flame retardant board 10 is made of a papermaking and impregnation composition manufactured using a fiber material containing waste fibers, and can also function as a flame retardant.

The flame retardant board 10 of the present invention has a technical feature in that the flame retardant component is highly dispersed in the flame retardant board to improve flame retardancy by optimizing the components of the impregnation composition.

The flame retardant contained in the impregnation composition is a flame retardant composed of three components: triphenyl phosphate, aluminum hydroxide, and decabromodiphenylethane. The combination of the above flame retardants can improve the flame retardant performance of the flame retardant board. appear.

In particular, mixing each component of the flame retardant in an appropriate ratio can increase compatibility with the components constituting the papermaking composition. Therefore, even if the content of the flame retardant is increased, the impregnation process appears to be carried out smoothly. Compared to the general impregnation process, the impregnation process appears to be smooth. It has been shown that it can be impregnated with flame retardants.

The flame retardant constituting the impregnating composition is specifically a flame retardant consisting of 20 to 30% by weight of triphenyl phosphate, 50 to 60% by weight of aluminum hydroxide, and 10 to 20% by weight of decabromodiphenylethane, through which the phosphorus-based flame retardant, tri Good dispersibility can be secured during the impregnation process without agglomeration occurring due to phenyl phosphate or decabromodiphenylethane, a brominated flame retardant.

In addition, aluminum hydroxide, which constitutes the flame retardant, not only has a flame retardant effect, but also improves bonding strength by increasing the hydrophilicity of the fiber material making up the paper.

It is preferable to use each component constituting the flame retardant by classifying it into a particle size of 50 to 150㎛. This is taken into consideration the dispersibility within the fiber material constituting the papermaking, and if the particle size is too small, it may be contained within the fiber material during the impregnation process. Since the amount of unreacted powder that is not dispersed increases and sufficient impregnation is not achieved even if it is too large, it is preferable to classify and use it so that it falls within the above size range.

In addition, the impregnation composition contains silica. In particular, the dispersibility and moldability of the flame retardant are improved by using silica surface-treated with a copolymer of polybutylacrylate and polymethyl methacrylate. The polymethyl methacrylate copolymer is graft-copolymerized with silica particles to form surface-treated silica particles.

These surface-treated silica particles act as a kind of dispersant, and due to the hydrophilic nature of silica bonded to the end of the copolymer, it has been shown that the flame retardant is quickly dispersed within the fiber material that makes up the paper and promotes adsorption.

Copolymers of polybutylacrylate and polymethyl methacrylate are used as coating agents in the case of copolymers containing butylacrylate and methyl methacrylate in a weight ratio of 1:1, and when the butylacrylate content is more than 90% by weight. It is known that it can be used as an adhesive. That is, the physical properties of the copolymer may vary depending on the composition ratio of the copolymer.

In the present invention, as a copolymer of polybutylacrylate and polymethyl methacrylate, a copolymer composed of 10 to 20% by weight of polybutylacrylate and 80 to 90% by weight of polymethyl methacrylate is used. In addition, in order to form a graft copolymer by adding silica to the copolymer, 10 to 20 mol% of 01 to 05㎛ silica particles are added to 80 to 90 mol% of the copolymer of polybutylacrylate and polymethyl methacrylate. Surface-treated silica can be produced by mixing the copolymer and silica particles as much as possible and grafting the copolymer.

That is, the impregnation composition includes the steps of preparing a copolymer of polybutylacrylate and polymethyl methacrylate, mixing silica particles into the copolymer to prepare surface-treated silica, and mixing a flame retardant into the silica. It can be manufactured including.

In addition, the impregnation composition consists of 30 to 40 parts by weight of polybutylacrylate and polymethyl methacrylate copolymer, 10 to 20 parts by weight of surface-treated silica, and 50 to 60 parts by weight of a flame retardant, and 50 to 60 parts by weight of water for smooth impregnation. It is used by adding 200 parts by weight to form an aqueous solution. Additionally, in order to impart color to the flame retardant board, an inorganic pigment may be added during the process of manufacturing the impregnation composition.

The surface-treated silica particles are prepared by reacting polybutylacrylate and silica particles in the presence of copper bromide (CuBr2) and ascorbic acid to prepare silica particles surface-treated with polybutylacrylate, and methyl methacrylic is added to the silica particles again. By adding a rate and reacting in the presence of copper bromide, silica in the form of polybutylacrylate and polymethyl methacrylate copolymer surface-treated silica particles can be obtained.

Thereafter, a flame retardant is added to the prepared silica and stirred to obtain an impregnation composition.

Papermaking is impregnated with the impregnating composition obtained as described above. The papermaking can be obtained by applying a normal papermaking process using a fiber material containing waste fibers, and the papermaking has 5 parts by weight per 100 parts by weight of the papermaking. It may be composed by further mixing 10 to 10 parts by weight of perlite and 2 to 5 parts by weight of vermiculite powder.

Here, the vermiculite and perlite are minerals with numerous pores formed inside, and can provide a sound-absorbing effect as well as an insulating effect to the flame retardant board 10.

In Korean Patent Publication No. 10-2018-0107524, papermaking is made by mixing a papermaking composition containing a flame retardant with a fiber material in the papermaking process to produce a semi-incombustible papermaking fiberboard, and the produced paper is again impregnated with a flame retardant. A process of impregnating the composition is applied. Although it is possible to increase the content of the flame retardant inside the papermaking process by introducing the flame retardant twice, there is a problem in that if the flame retardant is included in the papermaking process, the durability of the papermaking itself decreases, resulting in process defects.

The present invention, unlike the process of the prior art, manufactures paper through a normal papermaking process and then introduces a flame retardant into the papermaking fibers only through an impregnation process. In addition, the ingredients and content of the impregnation composition for the impregnation process are being optimized so that sufficient flame retardant effect can be achieved through this process alone.

The fiber material uses waste fibers. The waste fibers may be natural fibers or synthetic fibers selected from cotton, pulp, polyester, and polypropylene, or may be used as mixed fibers. Additionally, waste fibers and regular fibers can be mixed and used.

Additionally, prior to performing a papermaking process using the fiber material, the fiber material may be polished through a beating process. In the beating process, the fiber material is ground into a fine powder, placed in a water bath, and polished for 2 to 3 hours.

In this way, papermaking is made using the polished fiber material, which is a process of dehydrating and drying the fiber material, and normal papermaking processes such as stratum formation, compression dehydration, drying, and surface treatment can be applied. In other words, the fiber material ejected from the head box is introduced into the wire section to form paper, then goes through a pressing and dehydration process in the pressing section, the remaining moisture is evaporated in the drying section, and then the thickness of the paper is adjusted in the calendar to complete the paper making process. .

The paper can be manufactured to have a thickness of 1 to 5 mm. If the thickness of the paper is too thick, impregnation of the flame retardant in the subsequent impregnation process will not be smooth, and if the thickness is too thin, damage to the paper may occur in the subsequent process, so it is preferable to manufacture it so that it falls within the above thickness range.

The impregnation process involves putting the paper into an impregnation tank containing the impregnation composition, impregnating it while passing through a compression guide roller installed in the impregnation tank, and then pressurizing it with a steel compression roller to proceed with the impregnation process while reducing the moisture content of the paper. . In addition, so that the components of the impregnating composition can penetrate into the fibers constituting the papermaking, it can be impregnated while pressing using a roller made of engraving and embossing as the guide roller, and the flame-retardant flame retardant board (10) obtained after the impregnation process ) can be performed.

Additionally, the flame retardant board 10 can be thermocompressed and molded using a thermocompressor. The thermocompression molding is a flat thermocompression molding, through which the smoothness and stability of the fibers that make up the papermaking can be maintained. When performing the thermal compression molding process, a mold may be attached to the top of the thermal compression machine to form various patterns on the surface of the flame retardant board 10.

It can be manufactured in the form of a laminated sheet or board by performing such thermocompression molding or performing a lamination process in which two or more dried flame retardant boards 10 are laminated. The upper layer lamination process can be performed by stacking 2 to 6 sheets depending on the purpose of the flame retardant board. In addition, for the above lamination process, adhesive can be applied to the surface of the flame-retardant papermaking panel to be laminated and then laminated to adhere. If the lamination process is performed in this way, the thickness can be adjusted to 2 to 30 mm, so it can be used as a material for various architectural ceiling panels.

The effect of the flame retardant board of the present invention will be explained.

[Example]

To manufacture the flame retardant board 10, waste cotton fibers with an average length of 40 mm were pulverized, then 100 parts by weight of the pulverized material was put into a water tank and a beating process was performed for 2 hours.

The obtained waste fibers were put into a headbox, and the waste fibers ejected from the headbox formed a stratum in the wire portion. This was pressed and dehydrated in the pressing section, the remaining moisture was evaporated in the drying section, and then passed through a calendar to produce paper with a width of 1,000 mm, a length of 2,500 mm, and a thickness of 2 to 25 mm.

The paper was put into an impregnation tank where the impregnation composition was stored, and pressurized with a steel compression roller through a guide roller installed in the impregnation tank to produce a flame-retardant board and first dried. The first dried flame retardant board was heat-compressed at 180°C and a temperature and pressure of 200 kg/cm2 for 3 minutes to obtain a flame retardant board with a thickness of 2 mm.

At this time, the impregnation solution was prepared by mixing an impregnating composition consisting of 60 parts by weight of a flame retardant, 15 parts by weight of silica, and 35 parts by weight of a copolymer of polybutylacrylate and polymethyl methacrylate with 100 parts by weight of water.

At this time, the flame retardant was used as a mixture of 24% by weight of triphenyl phosphate, 58% by weight of aluminum hydroxide, and 18% by weight of decabromodiphenylethane, and the butylacrylate/methyl methacrylate copolymer was 15% by weight of BA and 85% of MMA. A copolymer composed in weight percent was used.

[Comparative example]

Figure 6 is a photograph showing the results of a direct combustion test on a test specimen manufactured using a membrane panel (a), a flame retardant board (b) of the present invention, and a wood panel (c).

For comparison, the same impregnation process as in the example was performed, but a composition of 80 parts by weight of liquid potassium silicate, 30 parts by weight of ultracarb, and 20 parts by weight of diatomaceous earth mixed with 100 parts by weight of water was used.

Direct combustion experiments were conducted on the flame retardant board 10 according to Examples and Comparative Examples and a conventional wood panel. As a result, as shown in FIG. 6(b), the flame retardant board 10 of the example was found to have excellent flame retardancy as it did not burn even when sprayed with direct fire. In contrast, the flame retardant board 10 according to the comparative example showed flame retardancy as shown in FIG. 6(a), and the degree of ignition was weaker than that of the conventional wood panel (FIG. 6(c)), but was found to be more severe than that of the example. It was determined that this result was because a large amount of flame retardant components were contained in the flame retardant board 10 through the impregnation process of the present invention.

Flame-retardant wall and ceiling panels using waste fiber according to the present invention can enhance flame retardancy through a flame-retardant board using waste fiber and a sound-absorbing sheet impregnated with a melamine-based flame retardant aqueous solution, and also by using noise inducing holes formed in the sound-absorbing sheet and flame retardant board. Through this, noise can be offset in multiple stages, and rigidity can be increased through the HPM board, and it can also have antibacterial properties that can suppress various bacteria and fungi through the antibacterial paint layer.

Since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, various equivalents can be substituted for them at the time of filing the present application. It should be understood that there may be variations.

10: Flame retardant board 10: Flame retardant board 11: Sound wave induction ball
12: Internal space part
20: Sound-absorbing sheet
30: HPM board
40: Antibacterial paint layer
50: Fitting unevenness
100: Flame-retardant walls and ceiling panels using waste fiber

Claims (5)

Flame retardant board (10) made of a papermaking and impregnation composition manufactured using a fiber material containing waste fibers;
A sound-absorbing sheet (20) attached to the other side of the flame retardant board (10) to offset noise transmitted from the structure; and
Including an HPM board (30) attached to the exposed surface of the flame retardant board (10) to increase rigidity,
The flame retardant board 10 is composed of a plurality of stacked pieces, and the sound wave guide hole 11 of the flame retardant board disposed at the bottom has a structure whose size is expanded compared to the sound wave guide hole 11 disposed at the top,
The impregnation composition is a flame retardant consisting of 20 to 30% by weight of triphenyl phosphate (TPP), 50 to 60% by weight of aluminum hydroxide (Al(OH)3), and 10 to 20% by weight of decabromodiphenylethane (DBDPE) and polybutyl A copolymer composed of 10 to 20% by weight of acrylate and 80 to 90% by weight of polymethylmethacrylate (poly(n-buthylacrylate)-b-poly(methylmethacrylate), PBA-PMMA) with 80 to 90 mol% and silica particles It is made of surface-treated silica mixed at 10 to 20 mol%,
A flame-retardant wall and ceiling panel using waste fiber, characterized in that an antibacterial paint layer (40) is applied to the surface of the HPM board (30).
According to paragraph 1,
The fiber material is made of fiber material polished through a beating process,
The flame retardant board (10) is a flame retardant wall and ceiling panel using waste fiber, characterized in that it is manufactured by impregnating the paper with the impregnating composition and then heat-compressing it.
According to paragraph 1,
The antibacterial paint layer 40 is made by mixing 10 to 20 parts by weight of copper oxide with 100 to 200 parts by weight of resin, and 2 to 3 parts by weight of polyisocyanate is used as a hardener, and dioctyl phthalate (DOP) and dibutyl phthalate are used. Flame-retardant wall and ceiling panels using waste fiber, characterized in that (DBP) is mixed with 3 to 4 parts by weight of additives.
According to paragraph 1,
Flame-retardant wall and ceiling panels using waste fiber, characterized in that 5 to 10 parts by weight of perlite and 2 to 5 parts by weight of vermiculite powder are further mixed with the papermaking paper relative to 100 parts by weight of the papermaking.
According to paragraph 1,
The sound-absorbing sheet 20 includes the steps of impregnating a non-woven fabric in an aqueous solution containing tetraorthosilicate (TEOS) and 1N hydrochloric acid as an acid catalyst, drying the impregnated non-woven fabric so that silica particles are distributed within the fiber tissue, and the non-woven fabric A waste product characterized in that it is manufactured by impregnating the dried non-woven fabric again with a melamine-based flame retardant aqueous solution so that silica and flame retardant are distributed in the melamine-based flame retardant solution, then taking it out and drying it, and laminating three or more pieces of the dried non-woven fabric and forming them into a sheet form. Flame-retardant wall and ceiling panels using fiber.

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