JPH0827920A - Sound proofing panel using incinerated ash and its manufacture - Google Patents

Abstract

PURPOSE:To provide a panel large in sound transmission loss and excellent in sound insulation by putting a mixture of incinerated ash and binder on a surface layer material comprising wooden material, putting a surface layer material comprising decorative plates, pressurizing and heating it to form a core material, and integrally laminating the wood material and decorative plates on both surfaces of it. CONSTITUTION:A resin adhesive agent is applied onto the rear surfaces of a substrate 1 and a surface layer material 3. Next a mold 11 is put on a floor plate 15, and a mixture 12 of incinerated ash and binder is placed on it. Also the surface layer material 3 is put on the upper surface of the mixture 12 so that its adhesive agent coated side is made in contact with that upper surface. Then the floor plate 15 is put on a lower side plate 13 with an upper side hot plate 14 of the pair of upper and lower side hot plates 13 and 14 raised. 1 Subsequently the upper side plate 14 is lowered, and the area between the upper and lower side plates 13 and 14 is pressurized and heated to form a core material 2. In addition, a formed body on both sides of which the substrate 1 and the surface layer plate 3 are laminated is taken out and cured. Thus a whole panel is increased in density, and the panel excellent in sound insulation can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation panel using incineration ash and a method for manufacturing the same, and more specifically, it effectively utilizes incineration ash that is industrial waste and is characterized by sound insulation performance suitable for building materials. The present invention relates to a sound insulation panel using incinerated ash and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, as a method for treating incinerated ash of industrial waste, a treatment method on the premise of burial disposal has been performed.

In addition, waste wood from a construction site is incinerated to reduce the volume, and is then buried.

As a treatment method premised on burial disposal, "Incineration ash containing calcium oxide is incinerated and solidified by incineration of incinerated substances containing calcium compounds disclosed in JP-A-55-20651. In the incineration ash treatment method to turn into aeration, a gas containing carbon dioxide is passed through the incineration ash,
A method for treating incinerated ash, comprising reacting the above-mentioned calcium oxide with the above-mentioned carbon dioxide to produce calcium carbonate, and then subjecting the above-mentioned incinerated ash to a solidification treatment by pressure molding. Is known, and in the treatment of sewage sludge incineration ash disclosed in JP-A-54-127868, the C of the incineration ash is treated.
The basicity expressed as aO / SiO ₂ was measured. Water having a basicity of more than 1.3 was directly added with water, and those having a basicity of less than 1.3 were added with a binder and then water, and then granulated. Then, a method for treating sewer sludge incineration ash, in which the dried incineration ash is added to the obtained wet mass to cure and agglomerate. In addition, in the method of solidifying a fine particulate material containing an organic component using a synthetic resin disclosed in JP-A-55-92184, the above-mentioned material and the synthetic resin are combined. A method of solidifying a fine particulate material, which includes a step of kneading and molding and a step of providing a protective coating for covering the surface of the molded article with a synthetic resin not containing the above substance. "

However, in the case of treating the incineration ash by such burial disposal, there is a problem in that a large amount of expense and a vast treatment site must be secured for the disposal because of the burying method. .

Therefore, a method of utilizing incinerated ash, which is an industrial waste, has been used in view of environment and resource recycling.

As a method of utilizing the incinerated ash, "Ash obtained from the incinerated ash is pulverized and dried, and a desired amount of a binder agent is added to the ash obtained from JP-A-51-11814. A method for producing artificial pebbles having a water content of not more than%, and compressing the mixture at 300 kg / cm ² or more to give pebbles. "
As disclosed in Japanese Patent Laid-Open Publication No. 1994-2004, "dust dust incineration ash and a hydraulic binder such as Portland cement are mixed at a constant weight ratio, and metal powder or a surfactant or a metal powder and a surfactant is added to the mixture. A foamed porous panel that uses the refuse incineration ash that has been kneaded in an appropriate amount of water to form a panel-shaped solid body. "
Is also known, and is disclosed in Japanese Patent Laid-Open No. 53-60928, "A dust incinerated ash and a hydraulic binder such as Portland cement are mixed at a constant weight ratio, and the metal powder or the interface is mixed. A foamed porous aggregate using a dust incineration ash prepared by adding an activator or a metal powder and a surfactant and kneading the mixture with an appropriate amount of water. "
As disclosed in Japanese Patent Laid-Open Publication No. 1994-2004, "dust incineration ash, a neutralizing agent such as zinc oxide, a binder solution mixed with water, cement, and sand are agitated by a mixer, and the agitated product is placed in a predetermined mold. Is added, and preferably the mold is pressurized, then taken out and naturally dried. "

On the other hand, soundproofing is an important issue for a comfortable residential environment, and the sound insulation performance is higher as the density of the material is larger and the thickness of the material is larger, that is, the surface density is larger. Therefore, the wood material has a small density and is unsuitable as a sound insulating material by itself, so-called inorganic material such as so-called calcareous board or concrete is used as a base material having a sound insulating property.
Wood-based materials have been mainly used as a complement to the surface aesthetics of inorganic materials.

[0009]

However, among the processing methods utilizing the incinerated ash, the artificial pebbles manufacturing method disclosed in Japanese Patent Application Laid-Open No. 51-11814 requires a dedicated facility and requires a wooden product manufacturing process. There is a problem that the existing equipment normally installed in the factory cannot be used.

The foamed porous panel using the dust incineration ash disclosed in Japanese Patent Laid-Open No. 53-31723 has a problem that it is not suitable when a wood texture is required.

The foamed porous aggregate using the dust incineration ash disclosed in JP-A-53-60928 has a problem that it is for road paving and is not suitable for building materials.

In the case of the dust incineration ash processing method disclosed in Japanese Patent Laid-Open No. 523654, a material unrelated to the processing of wood products such as zinc oxide, cement and sand is used. And is not suitable for processing wooden products.

On the other hand, when it is desired to use a wood material as a sound insulation material, it is used as a laminated plate in which the wood material and a so-called calcareous board or a base material of an inorganic material such as concrete are laminated. In that case, the inorganic material is used. Since a method of adhering and laminating a wood-based material on the solid layer with an adhesive after being molded into a solid layer is used, the molding work is complicated to mold the sound insulation panel, and the productivity is low. There's a problem.

An object of the present invention is to solve the above problems and to provide a sound insulation panel using incineration ash suitable for a building material, and a manufacturing method thereof.

[0015]

According to the present invention, the incinerated ash is used as a main raw material, not as a secondary use as a bulking material, without any special treatment, and a woody material is provided on the surface. In addition, it is a panel excellent in sound insulation, and the sound insulation panel is molded in one step by also using hot press equipment normally used in a wood product processing factory.

The sound insulation panel using the incineration ash of the present invention is
A panel is characterized in that a solid layer composed of incinerated ash and a binder is used as a core material, and at least one surface of the surface layer materials provided on both surfaces of the core material is made of a wood material.

The incineration ash may be incineration ash obtained by incinerating waste wood, and the binder may be either a thermosetting resin such as phenol resin or urea resin.

The method for producing a sound insulating panel using incinerated ash according to the present invention is a method in which a mixture of incinerated ash and a binder is placed on a surface layer material made of a wood material to a predetermined thickness, and a makeup is applied on the mixture. A surface layer material composed of plates is placed and laminated, and the laminate is pressurized and heated to solidify a mixture of incinerated ash and a binder to form a core material for the solid layer, and a core material for the solid layer. The surface layer material is laminated on both surfaces of the above, and a panel in which at least one surface of the surface layer material is made of a wood material is formed.

The incineration ash may be incineration ash obtained by incinerating waste wood, and the binder may be either a thermosetting resin such as phenol resin or urea resin.

[0020]

The sound insulation effect increases as the density of the panel material increases and the thickness of the panel material increases.

A mixture of incineration ash and a binder is placed on a surface layer material made of a wood material, a surface layer material made of a decorative plate is placed on the mixture, and the laminate is pressurized and heated to produce incineration ash. The mixture of binders is solidified to form a solid core material, and the wood material and the decorative board are laminated and integrated on both surfaces of the core material to form a laminated panel.

A panel in which the wood material is laminated on at least one surface of the surface layer material provided on both surfaces of the core material of the solid layer adds weight to the wood material, and the density of the entire panel increases, and Sound insulation is improved compared to a panel material made of only one material.

[0023]

Examples As the surface layer material made of a wood material used in the present invention, there are a single plate, a plywood or a particle board which is usually used as a laminated plate.

As the surface layer material made of a decorative plate used in the present invention, a single plate or plywood which is usually used as a laminated plate can be mentioned.

The incineration ash used in the present invention includes wood incineration ash obtained by incinerating waste wood produced in the process of manufacturing and manufacturing wood products in a general incinerator. When wood incineration ash is used, its particle size is There is no particular limitation.

Examples of the binder mixed with the incinerated ash include thermosetting resins such as phenol resin and urea resin.

Other binders include thermoplastic resins such as vinyl acetate resin, natural adhesives such as casein, and inorganic adhesives such as water glass.

The mixing ratio of the incinerated ash and the binder is set to about 15 to 30 parts by weight of the binder with respect to 100 parts by weight of the incinerated ash for reasons such as easy mixing of the two.

The pressure and heating conditions for solidifying the mixture of incinerated ash and binder to form the core material of the solid layer may be appropriately set in accordance with the curing conditions of the binder used.

Specific examples of the present invention will be described together with comparative examples.

Embodiment 1 FIGS. 1 to 3 show one embodiment of the manufacturing method of the present invention, in which 1 is a surface layer of a wood material made of lauan plywood having a length of 260 mm, a width of 260 mm and a thickness of 3 mm. Material (hereinafter referred to as a substrate), 2 is a core material of a solid layer composed of incinerated ash and a binder, 3 is a surface layer material of a decorative plate made of lauan plywood having a length of 260 mm, a width of 260 mm and a thickness of 3 mm (hereinafter, carried out). In the example, it is called a decorative board).

First, the thickness 18 as shown in FIG.
A formwork 11 having a rectangular cross section with an inner dimension of 260 mm, a width of 260 mm, and a height of 25 mm was prepared with a wood of mm. The mold 11 is the mold 1
The vertical frame 11a and the horizontal frame 11b as shown in FIG. 1 (B) were made detachable so that the panel material after fabrication could be easily taken out from within 1.

Further, 400 g of incineration ash discharged from an incinerator for exclusive use of wood waste that incinerates waste wood (planar waste and wood scraping material) from a woodworking work site, and a phenol resin (manufactured by Sumitomo Durres Co., Ltd.) as a binder. 80 g of trade name Sumilite Resin PR-53120) was mixed, uniformly dispersed and kneaded to prepare a mixture 12.

Further, a phenol resin adhesive (trade name Aika P67, manufactured by Aika Kogyo Co., Ltd.) was applied to the back surfaces of the substrate 1 and the decorative plate 3, respectively. The amount of adhesive applied to the substrate 1 is 2
It was 0.6 g, and the amount of adhesive applied to the decorative plate 3 was 25.4 g.

Next, after placing the formwork 11 on the iron-made base plate 15 having a thickness of 2 mm, the substrate 1 is inserted into the formwork 11 so that the adhesive application side is on the upper side, and is placed on the upper surface of the base plate 15. After the placement, the mixture 12 was placed on the upper surface of the substrate 1. Furthermore,
The decorative plate 3 was placed on the upper surface of the mixture 12 so that the adhesive application side was in contact, and this was made into a laminate 16. continue,
Two iron contact plates 17 having a length of 260 mm and a width of 260 mm and a thickness of 9 mm were stacked and placed on the upper surface of the laminate 16.

Then, as shown in FIG. 2, with the upper hot plate 14 of the pair of upper and lower hot plates 13 and 14 in which a heating device is incorporated, raised, the floor plate 15 and the like are placed on the lower hot plate 13. Was placed.

Then, the upper hot plate 14 is lowered from above and the space between the upper and lower hot plates 13 and 14 is lowered.
While maintaining a pressure of 41 kgf / cm ² , pressurizing and heating the mixture 12 at a temperature of 180 ° C. for 60 minutes with a heating device built in the upper and lower hot plates 13 and 14 to solidify the mixture 12 from the incineration ash and the binder. While forming the core material 2 of a solid layer consisting of
After laminating the substrate 1 and the decorative plate 3 on both sides of the core material 2 of the solid layer, the upper hot plate 14 is raised, the floor plate 15 and the like are removed from the lower hot plate 13, and the molded body is taken out from the inside of the mold 11. Then, after sufficiently curing in the room, the four edges of the molded body are cut with a cutter, and a substrate 1 as shown in FIG. 3, a core material 2 of a solid layer composed of incinerated ash and a binder,
A sound insulation panel 18 made of the decorative plate 3 was created.

The size (length, width, total thickness: mm), weight (g), specific gravity (g / cm ³ ), and areal density of the sound-insulating panel 18 created.
(Weight per unit area of the panel: g / cm ² ) and the thickness (mm) of each of the substrate 1, the solid layer core material 2, and the decorative plate 3 of each member were examined, and the results are shown in Table 1. It was shown to.

Also, the sound pressure level (dB) of the sound insulation panel 18
Was measured using the measuring device shown in FIG. 5, and the results are shown in Table 1.
4 and the relationship between the surface density (g / cm ² ) of the sound insulating panel 18 and the sound transmission loss (dB) is shown in FIG. 4 (black square).

The structure of the measuring device shown in FIG. 5 for measuring the sound pressure level is as follows. In FIG. 5, reference numeral 21 denotes a sound insulation box having a sound receiving portion inside. The sound insulation box 21 is an outer wall made of lauan plywood with a thickness of 12 mm (external dimensions 385 mm x 385 mm x
320 mmH) 22 and an inner wall (outer dimensions 260 mm × 260 mm × 258 mmH) 23 made of lauan wood plywood having a thickness of 12 mm are arranged with a gap of 50 mm, and concrete 24 is filled in the gap.
Further, the inner wall 23 has a structure in which a glass wool board 25 (made by Nippon Micro Gee Wool Co., Ltd.) 25 having a thickness of 12 mm and a density of 96 kg / m ³ is attached to the inner surface of the inner wall 23. (Rion Co., Ltd., product name Ordinary Sound Level Meter NA-29) 26 was installed.

A space of 1 m is provided outside the sound insulation box 21.
Sound source (white noise: manufactured by Denki Sokki Co., Ltd.,
Product name test signal generator TYPE01004) 27 is arranged, and the sound insulation panel 18 is provided in the opening 28 above the sound insulation box 21.
Is placed as a test plate P to shield the opening 28, the periphery of the test plate P is fixed with clay 29, the sound emitted from the sound source 27 is transmitted through the test plate P, and inside the sound insulation box 21. The sound pressure level (dB) was measured by the microphone 26.

The sound transmission loss [dB] of the test plate P (sound insulation panel 18) in FIG. 4 is the microphone 26 when the opening 28 of the sound insulation box 21 is open, that is, the test plate P is not shielded. Sound pressure level L ₀ (dB) measured at
And the sound pressure level Lt (d measured by the microphone 26 when the opening 28 of the sound insulation box 21 is shielded by the test plate P.
The difference from B) (L ₀ −Lt) was set. The measurement result of the sound pressure level L0 was 84.4 dB (see the reference example in Table 1). The measured value was an all-pass value.

Example 2 The amounts of the mixture of incinerated ash and binder were 400 g and 80 g, the pressure applied to the laminate was 24 kgf / cm ² , and the heating temperature was 180 ° C.
A sound insulation panel was prepared in the same manner as in Example 1 except that the pressure and heating time were 60 minutes. The amount of adhesive applied to the substrate was 23.7 g, and the amount of adhesive applied to the decorative plate was 33.3 g.

Then, the size of the sound insulation panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Example 3 The mixture amount of incinerated ash and binder was 600 g and 120 g, the pressure applied to the laminate was 41 kgf / cm ² , and the heating temperature was 180 ° C.
A sound insulating panel was prepared in the same manner as in Example 1 except that the pressure and heating time were 70 minutes. The amount of adhesive applied to the substrate was 16.6 g, and the amount of adhesive applied to the decorative plate was 25.4 g.

Then, the size of the sound insulation panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Example 4 The mixture amount of incinerated ash and binder was 600 g and 120 g, the pressure applied to the laminate was 24 kgf / cm ² , and the heating temperature was 180 ° C.
A sound insulating panel was prepared in the same manner as in Example 1 except that the pressure and heating time were 70 minutes. The amount of adhesive applied to the substrate was 22.5 g, and the amount of adhesive applied to the decorative plate was 21.4 g.

Then, the size of the sound insulation panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Example 5 The amounts of the mixture of incinerated ash and binder were 800 g and 160 g, the pressure applied to the laminate was 41 kgf / cm ² , and the heating temperature was 180 ° C.
A sound insulation panel was prepared in the same manner as in Example 1 except that the pressurizing and heating times were 80 minutes. The amount of adhesive applied to the substrate was 25.8 g, and the amount of adhesive applied to the decorative plate was 26.7 g.

Then, the size of the sound insulation panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Example 6 The amounts of the mixture of incinerated ash and binder were 800 g and 160 g, the pressure applied to the laminate was 24 kgf / cm ² , and the heating temperature was 180 ° C.
Then, a sound insulating panel was prepared in the same manner as in the above example except that the pressing and heating times were 80 minutes. The amount of adhesive applied to the substrate was 22.3 g, and the amount of adhesive applied to the decorative plate was 26.7 g.

Then, the size of the sound insulation panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Example 7 As a binder to be mixed with incineration ash, 120 g of urea resin adhesive (Aika Kogyo Co., Ltd., trade name Aikayuri UC120Y) instead of phenol resin and granular urea (Mitsubishi Gas Chemical Co., Ltd. trade name Kogyo) Urea) 1.8 g and a curing agent (Aika Kogyo Co., Ltd., trade name Aika Yuri UH10) 1.2 g are used, and the mixture amount of incineration ash and binder is 400 g and 123 g. Using the urea resin binder in place of the phenol resin adhesive as the adhesive applied to the back surface of the plate, pressurize the laminate to 41 kg.
f / cm ² , heating temperature 120 ° C, pressurization, heating time 50
A sound-insulating panel was prepared in the same manner as in Example 1 except that the time was set to a minute. The amount of adhesive applied to the substrate is 13.8g
The amount of the adhesive applied to the decorative plate was 14.7 g.

Then, the size of the sound insulation panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Example 8 170 g of urea resin adhesive (made by Aika Kogyo Co., Ltd., trade name Aikayuri UC120Y) instead of phenol resin as a binder to be mixed with incinerated ash and granular urea (made by Mitsubishi Gas Chemical Co., Inc., trade name Kogyo) Urea resin binder consisting of 2.6 g of urea) and 1.7 g of a curing agent (trade name Aikayuri UH10 manufactured by Aika Kogyo Co., Ltd.) is used, and the mixture amount of the incineration ash and the binder is 600 g and 174.3 g, and the substrate and The above urea resin binder was used instead of the phenol resin adhesive as the adhesive applied to the back surface of the decorative board, and pressure was applied to the laminate.
kgf / cm ² , heating temperature to 120 ° C, pressurization and heating time
A sound insulating panel was prepared in the same manner as in Example 1 except that the duration was 60 minutes. The amount of adhesive applied to the substrate is 16.2
and the amount of adhesive applied to the decorative board was 17.1 g.

Then, the size of the sound insulation panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Example 9 230 g of urea resin adhesive (Aika Kogyo Co., Ltd., trade name Aikayuri UC120Y) instead of phenol resin as a binder to be mixed with incineration ash, and granular urea (Mitsubishi Gas Chemical Co., Inc., trade name Kogyo) Urea) binder of 3.5g and curing agent (Aika Kogyo Co., Ltd., trade name Aikayuri UH10) 2.3g are used, and the mixture amount of the incineration ash and the binder is 800g and 235.8g. The above urea resin binder was used instead of the phenol resin adhesive as the adhesive applied to the back surface of the decorative board, and pressure was applied to the laminate.
kgf / cm ² , heating temperature to 120 ° C, pressurization and heating time
A sound insulation panel was prepared in the same manner as in Example 1 except that the duration was 70 minutes. The amount of adhesive applied to the substrate is 18.7
The amount of adhesive applied to the decorative board was 17.6 g.

Then, the size of the sound-insulating panel created,
The weight, the specific gravity, the surface density, the thickness of each member, and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1.
The relationship between the areal density of the sound insulation panel and the sound transmission loss is shown in FIG. 4 (black square).

Comparative Example 1 The panel material was a 3 mm thick lauan plywood (commercial product).

Then, the size, weight, specific gravity of the panel material,
The areal density and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1. The relationship between the areal density of the panel material and the sound transmission loss is shown in FIG. 4 (white squares).

Comparative Example 2 The panel material was a 6 mm-thick silica sheet (commercially available).

Then, the size, weight, specific gravity of the panel material,
The areal density and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1. The relationship between the areal density of the panel material and the sound transmission loss is shown in FIG. 4 (white triangles).

Comparative Example 3 The panel material was a 9 mm thick gypsum board (commercial item).

Then, the size, weight, specific gravity of the panel material,
The areal density and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1. The relationship between the areal density of the panel material and the sound transmission loss is shown in FIG. 4 (white circles).

Comparative Example 4 A 12 mm thick gypsum board (commercially available) was used as the panel material.

Then, the size, weight, specific gravity of the panel material,
The areal density and the sound pressure level were examined in the same manner as in Example 1, and the results are shown in Table 1. The relationship between the areal density of the panel material and the sound transmission loss is shown in FIG. 4 (white circles).

Reference Example The sound pressure level L ₀ was set to the above-mentioned Example 1 without using any panel material.
It was 84.4 dB when examined in the same manner as. The sound pressure level (84.4 dB) is shown in Table 1 as a reference example.

[0068]

[Table 1]

As is clear from Table 1 and FIG. 4, in the example (present invention) and the comparative example (conventional product), the sound transmission loss is increased and the sound insulation is increased by giving weight to the panel itself. I know I'm going.

That is, for comparison of sound insulating materials, the following formula TL = alog ₁₀ m + b is generally used, where TL: transmission loss, m: areal density, and a, b: constants are used. This tendency was confirmed, and it was confirmed that incineration ash can be used as the core material of the sound insulation panel material.

Although a thermosetting resin such as a phenol resin or a urea resin was used as a binder to be mixed with the incineration ash in the above-mentioned examples, the substrate, the mixture of the incineration ash and the binder, and the laminate of the decorative sheet were not heated. When the incineration ash and the binder are solidified by pressing, a thermoplastic resin such as vinyl acetate, a natural adhesive such as casein, or an inorganic adhesive such as water glass is used as the binder.

Although the incineration ash of waste wood was used in the examples of the present invention, even if an inorganic material such as sand or volcanic ash is used in place of the incineration ash, the sound transmission loss is the same as that of the sound insulation panel using the incineration ash. It is possible to create a large panel with excellent sound insulation. In addition, when an inorganic material is used, it is possible to manufacture a panel material that is expected to have flame retardancy.

[0073]

According to the sound-insulating panel of the present invention, since the wood material is laminated on at least one surface of the surface layer material provided on both surfaces of the core material of the solid layer, the weight is added to the wood material. As a result, the density of the entire panel is increased, and the sound transmission loss is large and the sound insulation is excellent as compared with the conventional panel material made of wood alone.
When waste wood is used for incineration ash, it is possible to effectively use the waste wood that has been simply incinerated and used only for burying.
Further, when a thermosetting resin is used as the binder, it can be a panel material which can obtain water resistance and fire resistance.

According to the method of manufacturing a panel of the present invention, a mixture of incinerated ash and a binder is placed on a surface material made of wood material to a predetermined thickness, and a decorative plate is formed on the mixture. Since the surface layer material is placed and laminated, the laminate is pressurized and heated to solidify the mixture of the incinerated ash and the binder to form the core material of the solid layer, so that the core material is formed, Providing a method that makes it possible to extremely easily manufacture a panel material that has a large sound transmission loss and is excellent in sound insulation, in which at least one surface of the surface layer material on both sides of the core material is made of wood material, is extremely easy to manufacture using incineration ash. You can do it.

When waste wood is used for incineration ash, it is possible to effectively utilize the waste wood that has been simply incinerated and buried only when the thermosetting resin is used as the binder. It is possible to shorten the pressing time of the panel material as compared with the case of using.

[Brief description of drawings]

FIG. 1 is a perspective view of an example of a mold used in the manufacturing method of the present invention,

FIG. 2 is an explanatory view of a process showing an example of the manufacturing method of the present invention,

FIG. 3 is a perspective view of one embodiment of a sound insulation panel using the incineration ash of the present invention,

FIG. 4 is a characteristic diagram showing the relationship between the areal density of the panel material and the sound transmission loss,

FIG. 5 is an explanatory diagram of an apparatus for measuring a sound pressure level of a panel material.

[Explanation of symbols]

1 surface material of wood material, 2 core material, 3
Surface material, 12 Mixture of incinerated ash and binder, 1
6 laminates, 18 sound insulation panels.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B09B 3/00

Claims (6)

[Claims] 1. A incineration ash characterized in that a solid layer composed of incineration ash and a binder is used as a core material, and at least one surface of a surface layer material provided on both surfaces of the core material is a panel made of wood material. The sound insulation panel. 2. The sound insulation using incineration ash according to claim 1, wherein the incineration ash is incineration ash obtained by incinerating waste wood, and the binder is a thermosetting resin. panel. 3. The sound insulation panel using incineration ash according to claim 2, wherein the thermosetting resin is one of a phenol resin and a urea resin. 4. A mixture of incinerated ash and a binder is placed on a surface material made of a wood material to a predetermined thickness, and a surface material made of a decorative plate is placed on the mixture and laminated. The laminate is pressed and heated to solidify a mixture of incinerated ash and a binder to form a core material of a solid layer, and a surface layer material is laminated on both surfaces of the core material of the solid layer, A method for producing a sound-insulating panel using incinerated ash, which comprises forming a panel having at least one surface made of a wood material. 5. The sound insulation using incineration ash according to claim 4, wherein the incineration ash is incineration ash obtained by incinerating waste wood, and the binder is a thermosetting resin. Panel manufacturing method. 6. The method for manufacturing a sound insulation panel using incineration ash according to claim 5, wherein the thermosetting resin is either a phenol resin or a urea resin.