JP2002070219A - Fireproof sound insulation partition wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof sound insulation partition wall excellent in fire resistance efficiency, gross weight and sound insulation. SOLUTION: The fireproof sound insulation partition wall is constituted by integrally disposing laminated bodies in such a manner as to face each other on both sides of a steel substrate material. The laminated bodies are composed of one or more pieces of noncombustible or quasi-noncombustible face material measuring 5-30 mm in thickness and a thermal expansion fireproof sheet measuring 0.1-10 mm in thickness. The partition wall is characterized as follows: the above fireproof sheet has a specific gravity of 1.5 or above; a tensile modulus of elasticity of a type-2 dumbbell specimen on the basis of JIS K 6310 is in the range of 3-500 kgf/cm2, and a thickness change is in the range of 1.1-100 times when the amount of heat of 50 kW/m2 is given by half- hour irradiation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulating partition wall having fire resistance.

[0002]

2. Description of the Related Art Conventionally, buildings (three-story buildings, hospitals, hotels, etc.) of three stories or more must have a fire-resistant structure having fire-resistant performance in accordance with the Building Standards Law, and ceiling materials, partition walls, etc. Materials and structures having fire resistance are used for flooring and the like. In general, when a calcium silicate plate having a thickness of 15 mm or more is used as a partition wall,
The total thickness of the partition wall must be 60 mm or more,
There is a problem that the total weight of the partition wall becomes heavy, the handling property is deteriorated, and there is a problem that the effective area in the room is reduced. In addition, as fire-resistant partition walls conventionally marketed, fire-resistant face materials made of a laminate of a 12 mm-thick gypsum board and a 0.6 mm-thick steel plate are arranged on both sides of a metal stud with the gypsum board inside. Then, there is a fire-resistant partition wall having a total thickness of 60 mm, in which the space of the opposing gypsum board is filled with rock wool insulation and integrated. However, this refractory partition wall has a problem that when the thickness of the refractory face material is reduced, the rock wool shrinks when overheated, and the heat insulating property is reduced.

[0003] Furthermore, these partition walls are required to have sound insulation as well as fire resistance. For example, as a fireproof sound insulation partition wall having fire resistance performance for one hour, as shown in FIGS. A thick gypsum board 4 or a slate plate 4 is applied as a face material to the runner 1 and the stud 2 to maintain fire resistance and reduce transmitted sound on the general surface. Here, FIG. 1 is a cutaway perspective view of a fireproof and soundproof partition wall, and FIG. 2 is a horizontal sectional view thereof. In order to reduce solid-borne sound transmitted through the stud member 2 supporting the partition plate, as shown in a horizontal sectional view of the fire-resistant sound-insulating partition wall in FIG. It adopts a special construction method, such as installing it in a zigzag pattern so that it does not come in contact with the car at the same time.

In order to solve the above problems, the present inventors have disclosed in Japanese Patent Application No. 2000-86873,
Although a thin fire-resistant partition wall has been realized by using a heat-expandable fire-resistant sheet, a partition wall exhibiting a sufficient effect on sound insulation has not yet been obtained.

[0005]

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a fire-resistant and sound-insulating partition wall having excellent fire resistance, and furthermore excellent in fire resistance in terms of total weight and sound insulation. It is to provide a sound insulation partition wall.

[0006]

Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, as a fire-resistant and sound-insulating partition wall, a non-combustible or semi-non-combustible face material and a high specific gravity and a high elastic modulus are used. It has been found that the use of the heat-expandable refractory sheet of the present invention can provide a fire-resistant sound-insulating partition wall with reduced total weight and reduced vibration, and completed the present invention.

That is, a first aspect of the present invention is that one or more non-combustible or quasi-non-combustible face materials having a thickness of 5 to 30 mm and a thermally expandable refractory sheet having a thickness of 0.1 to 10 mm are provided. The laminate is a fire-resistant sound-insulating partition wall that is arranged and integrated so as to face both sides of the steel base material,
The heat-expandable refractory sheet has a specific gravity of 1.5 or more, and a tensile modulus of 3 to 500 kgf / cm ² with a No. 2 dumbbell according to JIS K 6310, and 50
A fire-resistant sound-insulating partition wall characterized in that a change in thickness when irradiated with a heat of kW / m ² for 30 minutes is 1.1 to 100 times.

The second aspect of the present invention (the invention of claim 2)
The fire-resistant sound-insulating partition wall according to the first invention, wherein the heat-expandable refractory sheet is formed from a resin composition containing a heat-expandable inorganic substance.

The third aspect of the present invention (the third aspect of the present invention)
Is a fire-resistant sound-insulating partition wall according to the second invention, wherein the resin of the resin composition containing a thermally expandable inorganic substance is a resin containing a thermoplastic resin and / or a rubber substance.

[0010] A fourth aspect of the present invention (the invention of claim 4).
Wherein the resin of the resin composition containing a thermally expandable inorganic substance is a resin containing an epoxy resin.
It is a fire-resistant sound-insulating partition wall according to the invention.

The fifth aspect of the present invention (the invention of claim 5)
The heat-insulating refractory sheet according to any one of claims 1 to 4, wherein the heat-expandable refractory sheet contains 50 to 400 parts by weight of an inorganic filler based on 100 parts by weight of a resin component. The wall.

A sixth aspect of the present invention (the invention of claim 6).
The fire-resistant sound-insulating partition wall according to any one of the first to fifth inventions, wherein the non-combustible or quasi-non-combustible face material is a gypsum board and a face material obtained by laminating a facing material on a gypsum board. is there.

A seventh aspect of the present invention (the invention of claim 7).
The present invention provides the fire-resistant and sound-insulating partition wall according to any one of the first to sixth inventions, wherein a heat insulating material is filled in a gap formed by the steel base material and the laminate.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The fire-resistant sound-insulating partition wall of the present invention is formed by disposing a laminate of a non-combustible face material or a quasi-non-combustible face material and a heat-expandable fire-resistant sheet on both sides of a steel base material. Things. The configuration will be described in detail below.

(1) Non-combustible face material or semi-combustible face material The non-combustible face material or semi-combustible face material used in the present invention includes:
For example, gypsum board, slate board, perlite board, AL
C board, PC board, ceramic board, cocrete board, various cement boards, calcium silicate board, hydrated inorganic substance containing board,
Metal plates such as a wood chip cement plate, an iron plate, a galvanized steel plate, an aluminum plate and the like, and composite surface materials thereof, and surface materials obtained by applying a surface decoration (painting, wallpaper sticking, etc.) to these are exemplified. Of these, gypsum boards are preferred because they are inexpensive and readily available.

As the plaster board, for example, JIS
A Plain gypsum board (GB-
R), decorative gypsum board (GB-D) specified in JIS A 6911, waterproof gypsum board (GB-S) specified in JIS A 6912, reinforced gypsum board (GB-F) specified in JIS A 6913 , JIS A6
The sound-absorbing gypsum board (GB-P) specified in 301 is mentioned.

The surface of the non-combustible or quasi-non-combustible face material may be provided with a decorative surface such as decorative paper, wallpaper, paint, etc., if necessary.

The thickness of the non-combustible face material or semi-combustible face material is 5 to 30 mm, preferably 5 to 15 mm. When the thickness is less than 5 mm, the auxiliary heat insulating effect and the reinforcing effect are insufficient, and when the thickness is more than 30 mm, the weight reduction intended for the present invention,
Thinning will not be realized.

(2) Heat-Expandable Fire-Resistant Sheet The heat-expandable fire-resistant sheet used in the present invention has a specific gravity of 1.5 or more and a tensile modulus of 3 to 500 kgf / cm ^{2 with} a JIS K6301 No. 2 type dumbbell. And expands by heating to form a refractory and heat-insulating layer.
Thickness change (thickness D1 after irradiation / thickness D0 before irradiation) when irradiating a heat amount of 0 kW / m ² for 30 minutes is 1 to 100.
It is twice. The heat-expandable refractory sheet is preferably formed from a resin composition containing a heat-expandable inorganic substance.

Examples of the resin composition containing the above-mentioned thermally expandable inorganic substance include a thermoplastic resin and / or a rubber substance, and a resin composition containing an epoxy resin and a thermally expandable inorganic substance.

Examples of the thermoplastic resin and / or rubber material include polyolefin resins such as polypropylene resin, polyethylene resin, poly (1-) butene resin, polypentene resin, polystyrene resin, and acrylonitrile resin. Butadiene-styrene resin,
Polycarbonate resin, polyphenylene ether resin, acrylic resin, polyamide resin, polyvinyl chloride resin, phenol resin, polyurethane resin, polybutene, polyisobutylene, natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene Rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, acrylic rubber, epichlorohydrin rubber, polyvulcanized rubber, silicone rubber, fluorine rubber, urethane rubber, etc. Can be

The thermoplastic resin and / or rubber substance may be used alone or in combination of two or more. In addition, to adjust the melt viscosity, flexibility, adhesiveness, etc. of the resin, 2
A blend of two or more resins may be used as the base resin. Further, the partition wall of the present invention may be cross-linked or modified within a range that does not impair the fire resistance and the sound insulation. As the cross-linking method, for example, a commonly used cross-linking method such as a cross-linking method using a cross-linking agent or a peroxide, a cross-linking method by electron beam irradiation, or the like can be used.

When the base resin contains a rubber substance,
It has excellent rubber elasticity and can keep the elastic modulus of the fire-resistant sheet low. In particular, when a mixture of butyl rubber, polybutene, and hydrogenated petroleum resin is used as the base resin, not only is the modulus of elasticity kept low, but the fire-resistant sheet itself becomes tacky because of its tackiness. This is preferable because it facilitates lamination with the surface material.

The epoxy resin is not particularly limited, but is basically a resin obtained by reacting a monomer having an epoxy group with a curing agent.

Examples of the monomer having an epoxy group include bifunctional glycidyl ethers such as polyethylene glycol, polypropylene glycol, neopentyl glycol, 1,6-hexanediol, trimethylolpropane, and propylene oxide. Bisphenol A type, hydrogenated bisphenol A type, etc., and glycidyl ester types include hexahydrophthalic anhydride type, tetrahydrophthalic anhydride type, dimer acid type, p-oxybenzoic acid type, etc., and polyfunctional glycidyl. Examples of the ether type include a phenol novolak type, an orthocresol type, a DPP novolak type, and a dicyclopentadiene / phenol type. These may be used alone or in combination of two or more.

As a curing agent, as a polyaddition type,
Examples of the catalyst type include polyamines, acid anhydrides, polyphenols and polymercaptans, and tertiary amines, imidazoles, Lewis acid complexes and the like. The curing method of these epoxy resins is not particularly limited, and can be performed by a known method.

Among the epoxy resins, those containing a long-chain alkyl or an epoxy resin having a long distance between cross-linking points, when used as a base resin, not only can maintain a low elastic modulus but also have a high carbonization rate and a high level of fire resistance. It is preferable because it can be maintained.

The heat-expandable refractory sheet made of a resin composition containing an epoxy resin and a heat-expandable inorganic substance has excellent shape retention because the heat-expandable fire-resistant sheet after expansion has a reinforcing structure. The thickness of the material can be reduced, and it can be suitably used.

The above-mentioned heat-expandable inorganic substance is a heat-expandable inorganic substance which expands when heated, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite. Among these, heat-expandable graphite is preferred because of its low foaming start temperature.

The heat-expandable graphite is a conventionally known substance. Powders such as natural scale graphite, pyrolytic graphite, and quiche graphite are mixed with inorganic acids such as concentrated sulfuric acid, nitric acid and selenic acid, and concentrated nitric acid and perchloric acid. A crystalline compound that has been treated with a strong oxidizing agent such as perchlorate, permanganate, dichromate, hydrogen peroxide, etc. to produce a graphite intercalation compound, while maintaining a layered structure of carbon. It is.

It is preferable that the heat-expandable graphite obtained by the acid treatment as described above is further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like.

As the aliphatic lower amine, for example,
Monomethylamine, dimethylamine, trimethylamine, ethylamine, propylamine, butylamine and the like can be mentioned. As the alkali metal compound and the alkaline earth metal compound, for example, potassium, sodium,
Examples include hydroxides, oxides, carbonates, sulfates, and organic acid salts of calcium, barium, magnesium, and the like.

The particle size of the heat-expandable graphite is preferably from 20 to 200 mesh. When the particle size is smaller than 200 mesh, the degree of expansion of graphite is small, and a sufficient refractory and heat insulating layer cannot be obtained. When the particle size is larger than 20 mesh, there is an advantage that the degree of expansion of graphite is large. Or, when kneading with an epoxy resin, the dispersibility becomes poor, and a decrease in physical properties is inevitable.

As a commercially available product of the neutralized heat-expandable graphite, for example, "GR manufactured by UCAR CARBON"
AFGUARD "and" GREP-EG "manufactured by Tosoh Corporation.

An inorganic filler may be further added to the resin composition containing a thermally expandable inorganic substance. The inorganic filler is not particularly limited, and examples thereof include silica, diatomaceous earth, alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrites, calcium hydroxide, and magnesium hydroxide. , Aluminum hydroxide, basic magnesium carbonate,
Calcium carbonate, magnesium carbonate, zinc carbonate, barium carbonate, dawsonite, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, calcium silicate,
Talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, imogolite, sericite, glass fiber, glass beads, silica-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, Charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, inorganic phosphorus compounds And the like. These may be used alone or as a mixture of two or more.

Among them, metal carbonates represented by calcium carbonate and zinc carbonate which play an aggregate role,
Hydrous inorganic substances typified by aluminum hydroxide and magnesium hydroxide, which provide an endothermic effect when heated in addition to the role of aggregate, are preferred.

Further, a phosphorus compound may be added to the resin composition containing the thermally expandable inorganic substance in order to improve flame retardancy. The phosphorus compound is not particularly limited and includes, for example, red phosphorus; triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate,
Various phosphoric esters such as cresyl diphenyl phosphate and xylendiphenyl phosphate; metal phosphates such as sodium phosphate, potassium phosphate and magnesium phosphate; ammonium polyphosphates;
And the like. Among these, from the viewpoint of fire resistance, red phosphorus, ammonium polyphosphates, and compounds represented by the following general formula (1) are preferable, and ammonium polyphosphates are more preferable in terms of performance, safety, cost, and the like. preferable.

[0038]

Embedded image

In the formula (1), R ¹ and R ³ represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or
Represents an aryl group having 6 to 16 carbon atoms. R ² is a hydroxyl group,
A linear or branched alkyl group having 1 to 16 carbon atoms,
A linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or 6-1
6 represents an aryloxy group.

The above-mentioned red phosphorus improves the flame-retardant effect by adding a small amount. As the red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of moisture resistance, safety such as not spontaneously igniting during kneading, those obtained by coating the surface of red phosphorus particles with a resin are preferably used. .

The above ammonium polyphosphates include:
Not particularly limited, for example, ammonium polyphosphate, melamine-modified ammonium polyphosphate and the like,
Ammonium polyphosphate is preferably used in terms of flame retardancy, safety, cost and the like. Examples of commercially available products include “AP422” and “AP462” manufactured by Hoechst, “Sumisafe P” manufactured by Sumitomo Chemical Co., Ltd., and “Terage C” manufactured by Chisso.
60 ”,“ Terage C70 ”,“ Terage C80 ”
And the like.

The compound represented by the general formula (1) is not particularly restricted but includes, for example, methylphosphonic acid, dimethylmethylphosphonate, diethylmethylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid, 2-methyl Propylphosphonic acid, t-butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, Dioctylphosphinic acid, phenylphosphinic acid, diethylphenylphosphinic acid, diphenylphosphinic acid, bis (4-methoxyphenyl) phosphinic acid and the like can be mentioned. Among them, t-butylphosphonic acid is
Although expensive, it is preferable in terms of high flame retardancy. The above phosphorus compounds may be used alone or in combination of two or more.

The amount of the thermally expandable inorganic substance in the resin composition is preferably 20 to 500 parts by weight based on 100 parts by weight of the thermoplastic resin and / or rubber substance or epoxy resin. If the amount of the heat-expandable inorganic substance exceeds 500 parts by weight, uniform dispersion becomes difficult, and it becomes difficult to form a uniform thickness.

The above resin composition may contain, if necessary, a phenol-based, amine-based or sulfur-based antioxidant, a metal harm inhibitor, an antistatic agent, as long as the physical properties thereof are not impaired.
Additives such as stabilizers, crosslinking agents, lubricants, softeners and pigments, and tackifiers such as polybutene and petroleum resins can be added.

The resin composition used in the present invention can be obtained by kneading the above components using a known kneading apparatus such as a Banbury mixer, a kneader mixer, or a two-roll mill. The heat-expandable refractory sheet is obtained by molding the above resin composition into a sheet or the like by a conventionally known molding method such as hot press molding, extrusion molding, or calendar molding.

The heat-expandable refractory sheet used in the present invention has a specific gravity of 1.5 or more. If the specific gravity is less than 1.5, a sufficient sound insulation effect cannot be obtained.

The heat-expandable refractory sheet used in the present invention has a tensile modulus of 3 to 500 kgf / cm ² with a No. 2 dumbbell according to JIS K6301. If the tensile modulus is less than 3 kgf / cm ^2, it is difficult to handle and construct, and if it exceeds 500 kgf / cm ² , the sound insulation performance decreases.

When the intumescent refractory sheet has the above specific gravity and elastic modulus, the sound transmitted through the general surface can be reduced. Furthermore, by inserting a thermal expansion refractory sheet between the studs and the runner member constituting the steel base material,
The solid-borne sound transmitted through the studs and the runner member can be reduced. This is because sound propagation occurs when a material transmits vibration, and when the specific gravity of the material increases, the vibration is reduced. Also, when the elastic modulus of the material is high, there is an effect of reducing vibration.

Further, the heat-expandable refractory sheet used in the present invention.
Is 50 kW / m on the fireproof sheet. ^TwoHeat for 30 minutes
Thickness change upon irradiation (thickness after irradiation D1 / before irradiation)
Thickness D0) is 1.1 to 100 times. Thickness change
If it is less than 1.1 times, the fire resistance is insufficient, and it is 100 times.
If it exceeds, the refractory insulation layer formed by expansion by heating
The strength is reduced, and it tends to collapse.

The thickness of the heat-expandable refractory sheet is 0.1 to 1
0 mm, preferably 0.1 to 4 mm. The thickness is 0.
When the thickness is less than 1 mm, a heat-insulating layer having a sufficient thickness is not formed due to thermal expansion, so that the fire resistance becomes insufficient and the heat resistance becomes insufficient.
If it exceeds mm, the weight increases and the thickness of the refractory heat-insulating layer formed at the time of combustion becomes unnecessarily thick, resulting in excessive quality.

As such a heat-expandable refractory material, for example, a fire barrier (a sheet material made of a resin composition containing chloroprene rubber and vercurite, a coefficient of expansion: 3 times, heat conductivity, manufactured by Sumitomo 3M Limited) is used. Rate: 0.20 kcal
/ M · h · ° C.), a sheet material made of a resin composition containing a polyurethane resin and thermally expandable graphite, manufactured by Mitsui Kinzoku Paint Co., Ltd., expansion coefficient: 4 times, thermal conductivity: 0.21 k
cal / m · h · ° C.).

(3) Laminate The laminate used in the present invention is a laminate of the non-combustible or semi-non-combustible face material and the heat-expandable refractory sheet. The order of lamination and the number of layers of the laminate of the face material made of non-combustible or semi-incombustible material and the heat-expandable refractory sheet are not particularly limited, and the non-combustible material or semi-incombustible It does not matter whether a face material made of a material or a heat-expandable refractory sheet comes. Further, not only two layers but also three or more layers may be used. However, if the layer thickness is excessively increased due to excessive lamination, the layer becomes too heavy and the workability is remarkably reduced. Therefore, the layer thickness is preferably 40 mm or less.

The method of laminating the face material made of non-combustible or semi-non-combustible face material and the heat-expandable fire-resistant sheet is not particularly limited. And a method of utilizing the adhesiveness of the heat-expandable refractory sheet itself, and a method of bonding in the curing step of the heat-expandable fire-resistant sheet. Further, each layer (face material) may be sequentially built in the steel base material.

(4) Fire-Resistant Sound-Insulating Partition Wall The fire-resistant sound-insulating partition wall of the present invention is formed by arranging the above-mentioned laminate so as to face both sides of a steel base material and integrating them. The steel base material is composed of a runner 1 and a stud 2 as shown in FIG. 1 described above, and the laminated body is disposed on both sides of the stud to constitute a fire-resistant sound insulation partition wall. The heat-expandable refractory sheet side may be grounded to either the stud side or the front side.

The space formed by the studs and the laminate may be filled with a heat insulating material. The heat insulating material to be filled is not particularly limited, and examples thereof include glass wool, rock wool, and various resin foams.

Further, the laminated body of the non-combustible or semi-combustible surface material and the heat-expandable refractory sheet may be laminated with a reinforcing surface material such as a metal plate, an aluminum glass cloth, or a reinforcing plate having a honeycomb structure. .

Examples of the reinforcing metal plate include an iron plate, a stainless steel plate, a galvanized steel plate, and an aluminum-zinc alloy-plated steel plate. The thickness of the metal plate is 0.1-3
mm is preferred.

The fire-resistant sound insulating partition wall of the present invention is, as shown in FIG. 4, specifically, a steel base comprising a runner 1 and a stud 2 located between an upper floor 10 and a lower floor 11. A laminate of the heat-expandable refractory sheet 3 and the gypsum board 4 can be attached to the material with a drill screw 7, and the space formed by the runner and the stud can be filled with glass wool.

In the fire-resistant and sound-insulating partition wall of the present invention, the heat-expandable refractory material expands due to the heating of a fire or the like, and the combustion residue forms a fire-resistant heat-insulating layer. Can be suppressed, the transmitted sound of the general surface portion can be reduced, and the vibration noise can be reduced by attenuating the solid vibration propagating to the studs and the runner supporting the studs.

[0060]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to the examples. The materials used and the evaluation method are as follows.

1. Materials (1) Preparation of heat-expandable refractory sheet Butyl rubber (“Butyl rubber # 065” manufactured by Exxon Chemical Co., Ltd.), polybutene (“Polybutene 100R” manufactured by Idemitsu Petrochemical Co., Ltd.), hydrogenated petroleum resin ( Tosnex Corporation "Escolets 5320"), thermally expandable graphite (Tosoh Corporation "Frame Cut GREP-EG"), ammonium polyphosphate (Clariant "Exolit"), aluminum hydroxide (Showa Denko Corporation "Heidilite H") -31 ") and calcium carbonate (" Whiteton BF-300 "manufactured by Bihoku Powder Chemical Co., Ltd.), epoxy resin (" E807 "manufactured by Yuka Shell Co., Ltd.), curing agent (" F "manufactured by Yuka Shell Co., Ltd.)
L052 ”), after kneading the resin composition in a kneader by heating and kneading, using a calendering machine, a heat-expandable refractory sheet A,
B and C were prepared. The sheets B and C were heated and kneaded in a kneader, and then formed into a sheet with a thickness of 1.5 mm and 2 mm using an aluminum glass cloth as a base material by a calendering machine. The specific gravity, tensile modulus, and thickness change of each heat-expandable refractory sheet were measured and are shown in Table 1.

[0062]

[Table 1]

2. Evaluation method (1) Tensile modulus: 2 in accordance with JIS K6301
It was measured using a No. dumbbell. (2) Thickness change: 50 kW using a cone calorimeter (CONS2 manufactured by Atlas) for a heat-expandable fire-resistant sheet.
/ M ² was measured for 30 minutes when irradiated with heat for 30 minutes,
The thickness change (thickness after irradiation D1 / thickness before irradiation D0) before and after the irradiation of the calorific value was calculated. (3) Fireproof performance: JI
A fire resistance test was performed according to SA1304. (4) Sound insulation: JIS for fire-resistant sound insulation partition walls
The sound insulation class for the average sound pressure level difference between rooms was measured according to A1419.

Example 1 A heat-expandable refractory sheet A and a 15 mm-thick gypsum board (“GB-R” manufactured by Yoshino Gypsum Co., Ltd.) were laminated and integrated by utilizing the self-adhesiveness of the refractory sheet. Stainless steel runner (0.6
mm thickness, U-shaped -50 x 30 mm) and stainless steel studs (0.6 mm thick, square-shaped -50 x 30 mm) are assembled to build a skeleton of a partition wall, and the above-mentioned heat-expandable refractory sheet of the laminated surface material The layer side was studded and fixed to the skeleton with drill screws. Glass wool (manufactured by Asahi Glass Fiber Co., 50 mm thick, density 10 kg / c)
m ³ ), and the above-mentioned laminate is similarly covered thereover.
By fixing with a drill screw, a fire-resistant sound-insulating partition wall having a total thickness of 84 mm was obtained. FIG. 5 shows a cross-sectional view of the configuration. FIG.
1 is a runner, 3 is a heat-expandable refractory sheet, 4
Denotes a gypsum board, and 6 denotes glass wool. When the sound insulation rating and fire resistance test of the obtained partition wall were performed, it was D-45 and fire resistance of 1 hour. Table 2 shows the results.

Example 2 A heat-expandable refractory sheet B and two 12.5 mm-thick gypsum boards (“GB-R” manufactured by Yoshino Gypsum Co., Ltd.) were used in the same manner as in Example 1 except that a total thickness of 103 mm was used. A fire-resistant sound insulating partition wall was obtained. FIG. 6 shows a cross-sectional view of the configuration. FIG.
1 is a runner, 3 is a heat-expandable refractory sheet, 4
Denotes a gypsum board, 5 denotes an aluminum glass cloth, and 6 denotes glass wool. The obtained partition wall was subjected to a sound insulation rating and a fire resistance test. Table 2 shows the results.

Example 3 A heat-expandable refractory sheet C and a 15 mm-thick gypsum board ("GB-R" manufactured by Yoshino Gypsum Co., Ltd.) were used to form a laminate with an epoxy-based adhesive. Example 1 except that the partition wall was built with the refractory sheet layer side facing the front side.
In the same manner as in the above, a fire-resistant sound insulating partition wall having a total thickness of 84 mm was obtained. FIG. 7 shows a cross-sectional view of the configuration. In FIG. 7, 1 denotes a runner, 3 denotes a heat-expandable refractory sheet, 4 denotes a gypsum board, 5 denotes an aluminum glass cloth, and 6 denotes glass wool. When the sound insulation rating and fire resistance test of the obtained partition wall were performed, it was D-42 and fire resistance of 1 hour. Table 2 shows the results.

Example 4 The same procedure as in Example 1 was carried out except that a laminate was prepared by sandwiching both sides of the heat-expandable refractory sheet A with a 12.5 mm-thick gypsum board (“GB-R” manufactured by Yoshino Gypsum Co., Ltd.). Thus, a fire-resistant sound-insulating partition having a total thickness of 104 mm was obtained. FIG. 8 shows a cross-sectional view of the configuration. In FIG. 8, 1 is a runner,
Reference numeral 3 denotes a heat-expandable refractory sheet, 4 denotes a gypsum board, and 6 denotes glass wool. When the obtained partition wall was subjected to a sound insulation rating and a fire resistance test, it was D-48 and a fire resistance of 1 hour. Table 2 shows the results.

Comparative Example 1 Two 15 mm thick gypsum boards ("GB-R" manufactured by Yoshino Gypsum Co., Ltd.) were used without using a heat-expandable refractory sheet, and a stainless steel runner (0.6 mm thick, U-shaped-65) was used. × 30mm)
And stainless steel studs (0.6mm thick, square shape -65 x 3
0 mm), assemble the skeleton of the partition wall, and use glass wool (manufactured by Asahi Glass Fiber Co., Ltd., 5
Except for using a thickness of 0 mm and a density of 24 kg / cm ³ ), a fire-resistant sound-insulating partition having a total thickness of 125 mm was obtained in the same manner as in Example 1. When the sound insulation class and the fire resistance test of the partition wall were performed, it was D-43 and the fire resistance was 1 hour. Table 2 shows the results.

[0069]

[Table 2]

As is clear from Table 2, the fire-resistant sound-insulating partition wall of the present invention can be reduced in thickness, and the fire-proof performance and the sound-insulation performance are maintained at least equal to those of the conventional fire-resistant sound-insulated partition wall. I have.

[0071]

The fire-resistant sound-insulating partition wall of the present invention has a heat-expandable fire-resistant sheet having a specific gravity of 1.5 or more and JI.
The tensile modulus of SK6301 with No. 2 dumbbell is 3 ~
By being at 5600 kgf / cm ² , the fire resistance performance is satisfied, the total thickness is reduced compared to the conventional fire-resistant sound insulating partition wall, the weight is reduced, and the transmitted sound of the general surface can be reduced. It is a fire-resistant partition wall that can reduce vibration noise by attenuating solid vibrations propagating to the studs and the runners supporting the studs, and is thin and has excellent sound insulation performance.

[Brief description of the drawings]

FIG. 1 is a cutaway perspective view of a conventional fireproof sound insulation partition wall.

FIG. 2 is a horizontal sectional view of FIG.

FIG. 3 is a cross-sectional view of an example of a conventional fire-resistant sound insulating partition wall.

FIG. 4 is a cutaway perspective view showing an example of the configuration of the fire-resistant sound-insulating partition wall of the present invention.

FIG. 5 is a cross-sectional view illustrating a configuration of a fire-resistant sound-insulating partition wall according to the first embodiment.

FIG. 6 is a cross-sectional view illustrating a configuration of a fire-resistant sound-insulating partition wall according to a second embodiment.

FIG. 7 is a cross-sectional view illustrating a configuration of a fire-resistant sound insulating partition wall according to a third embodiment.

FIG. 8 is a cross-sectional view illustrating a configuration of a fire-resistant sound-insulating partition wall according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Runner 2 Stud 3 Thermal expansion refractory sheet 4 Nonflammable or semi-flammable surface material (gypsum board) 5 Aluminum glass cloth 6 Glass wool 10 Upper floor 11 Lower floor

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DD01 DE01 DF02 FA07 GA07 GA12 GA24 GA42 HA02 HA03 HA04 HA07 HA33 HB02 HB04 HC07 HD01 HD06 HD11 HE01 HF12 HF18 JA06 LA01

Claims (7)

[Claims] 1. A laminate of at least one non-combustible or semi-combustible face material having a thickness of 5 to 30 mm and a heat-expandable refractory sheet having a thickness of 0.1 to 10 mm faces both sides of a steel base material. A heat-insulating refractory sheet having a specific gravity of 1.5 or more and a tensile modulus of 3 with a JIS K 6310 No. 2 type dumbbell. ~500kgf / cm in the range of ^2, further 50 kW / m refractory thickness change upon irradiation 30 min heat of ^2, characterized in that a 1.1 to 100 times the sound insulation partition wall. 2. The fire-resistant sound insulating partition wall according to claim 1, wherein the heat-expandable refractory sheet is formed from a resin composition containing a heat-expandable inorganic substance. 3. The partition wall according to claim 2, wherein the resin of the resin composition containing the thermally expandable inorganic substance is a resin containing a thermoplastic resin and / or a rubber substance. 4. The partition wall according to claim 2, wherein the resin of the resin composition containing a thermally expandable inorganic substance is a resin containing an epoxy resin. 5. The heat-expandable refractory sheet according to claim 1, wherein the resin component 1
The fire-resistant sound insulating partition wall according to any one of claims 1 to 4, wherein the inorganic filler is contained in an amount of 50 to 400 parts by weight with respect to 00 parts by weight. 6. The fire-resistant and sound-insulating partition according to claim 1, wherein the non-combustible or quasi-non-combustible face material is a gypsum board and a face material obtained by laminating a covering material on the gypsum board. wall. 7. The fire-resistant and sound-insulating partition wall according to claim 1, wherein a gap formed by the steel base material and the laminate is filled with a heat insulating material.