JP7026752B2 - How to form a fire protection compartment - Google Patents

Description

The present invention relates to a method of forming a fireproof section by using a laminated body as a partition of a space, and is suitable for a partition of an internal space of a building.

Conventionally, as fire protection compartment equipment inside a building, fire shutters, fire protection screens, and the like arranged so as to separate preset fire protection compartments are known. In the event of a fire, these are installed by hanging from the ceiling to the floor to partition the inside of the building and form a fire protection section. For example, a non-combustible film material such as a steel or steel plate shutter is used as a fire shutter, and a non-combustible film material such as silica cloth is used as a fire resistant screen. The latter is often adopted because it has the advantage of preventing accidents and the like.

While the above-mentioned fire-resistant screen made of silica cloth or the like has excellent flame-shielding properties, it has insufficient heat-insulating properties, and the temperature of the fire-resistant screens on the fire side and the back surface rises, causing fire to spread from the back surface side. There is a risk. To solve such a problem, for example, Patent Document 1 describes forming a heat-foamable refractory paint layer on one side or both sides of a screen body.

Japanese Unexamined Patent Publication No. 11-293809

However, if a coating film is formed by simply applying a heat-foaming fire-resistant paint on one or both sides of the fire-resistant screen body as in Patent Document 1, the resin component of the fire-resistant paint layer melts when exposed to high temperatures. In this state, the coating film may sag, and as a result, it may not be possible to form a heat insulating layer having a uniform thickness.

The present invention has been made in view of these problems of the prior art, and is a laminate that forms a uniform heat insulating layer in the event of a fire, has excellent flame insulation and heat insulating properties, and can be used for partitioning a space. The purpose is to form a fire-prevention section by using the above as a partition of the space .

In order to solve such a problem, as a result of diligent studies, the present inventors have conducted an inorganic fiber sheet (B) and a heat-foamable resin having a specific texture on one surface side of the heat-foamable resin sheet (A). We came up with a method of forming a fireproof compartment by using a laminate in which another inorganic fiber sheet (C) is arranged on the other side of the sheet (A) as a partition of a space, and completed the present invention. rice field.

That is, the present invention has the following features.
1. 1. It is a method of forming a fireproof section by using a laminated body as a partition of a space.
The above-mentioned laminated body is suspended and installed in the space, and is installed.
The laminate has an inorganic fiber sheet (B) having a basis weight of 100 g / m ² or more and 2000 g / m ² or less and a thickness of 0.1 to 5 mm on one surface side of the heat-foamable resin sheet (A).
On the other surface side of the heat-foamable resin sheet (A), an inorganic fiber sheet (C) having a basis weight of less than 100 g / m ² and a thickness of 0.01 to 3 mm,
A method of forming a fire protection compartment, characterized in that the fire protection compartments are arranged.
2. 2. 1. The inorganic fiber sheet (B) is a woven fabric. The method for forming a fire protection section according to .
3. 3. 1. The inorganic fiber sheet (C) is a braided cloth and / or a non-woven fabric. Or 2. The method for forming a fire protection section according to .
4. The heat-foamable resin sheet (A) is characterized by containing a thermoplastic resin, a flame retardant, a foaming agent, a carbonizing agent, and a filler. ~ 3. The method for forming a fireproof compartment according to any one of the above.

The laminate of the present invention is to be suspended and installed in a space, and is an inorganic fiber sheet (B) having a texture of 100 g / m 2 or more and 2000 g / m 2 or less on one surface side of the ^{heat -} foamable resin sheet (A). ), The inorganic fiber sheet (C) having a texture of less than 100 g / m ² is arranged on the other surface side of the heat-foamable resin sheet (A), and forms a uniform heat insulating layer in the event of a fire. It has excellent flame-shielding and heat-insulating properties.

It is sectional drawing which shows an example of the laminated body of this invention. It is sectional drawing which shows another example of the laminated body of this invention.

1. 1. Thermally foamable resin sheet (A)
2. 2. Inorganic fiber sheet (B)
3. 3. Inorganic fiber sheet (C)

Hereinafter, embodiments for carrying out the present invention will be described.

The present invention is a method of forming a fireproof section by using a laminated body as a partition of an internal space of a building.
The above-mentioned laminated body is suspended and installed in the space, and is installed.
The laminate has an inorganic fiber sheet (B) having a basis weight of 100 g / m ² or more and 2000 g / m ² or less on one surface side of the heat-foamable resin sheet (A), and the other of the heat-foamable resin sheets (A). It is characterized in that an inorganic fiber sheet (C) having a basis weight of less than 100 g / m ² is arranged on the surface side. The basis weight means the mass per unit area.

[Thermal foamable resin sheet (A)]
The heat-foamable resin sheet (A) of the present invention is usually a thin film, but foams when the ambient temperature reaches a predetermined temperature due to a fire or the like to form a carbonized heat insulating layer. The heat-foamable resin sheet (A) of the present invention preferably contains a thermoplastic resin, a flame retardant, a foaming agent, a carbonizing agent, a filler, and the like. In the event of a fire, each of these components exhibits excellent heat insulating properties and heat protection by exhibiting functions such as sheet expansion, carbonized heat insulating layer formation, and generation of nonflammable gas through mutual combined action. be able to.

The thermoplastic resin is not particularly limited, and known ones can be used. For example, vinyl-based resin, polystyrene-based resin, polypropylene-based resin, acrylic-based resin, polyamide-based resin, polyurethane-based resin, vinyl acetate resin and the like can be mentioned. In addition, natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, acrylic rubber, epichlorohydrin rubber, polyvulase rubber, silicon rubber. , Fluorine rubber, urethane rubber and other rubber substances can also be used. These can be used alone or in combination of two or more.

Among them, in the present invention, it is preferable to use one that can be carried out at least at a temperature at which the heat-foamable sheet production temperature is lower than the expansion temperature of the heat-foamable sheet. Specific examples of such a thermoplastic resin include, for example, a vinyl toluene-butadiene copolymer, a vinyl toluene-acrylic acid ester copolymer, a vinyl toluene-methacrylate copolymer, and a styrene-butadiene copolymer. Examples thereof include an ethylene-vinyl acetate copolymer or a resin such as a ternary copolymer of two kinds of monomers constituting these copolymers and an acrylic acid monomer, a methacrylic acid monomer and the like, and one or two kinds thereof. It is preferable to include the above.

The flame retardant generally exerts at least one effect such as a dehydration cooling effect, a nonflammable gas generation effect, and a carbonization promoting effect of the thermoplastic resin in the event of a fire, and has an effect of suppressing combustion of the thermoplastic resin. The flame retardant used in the present invention is not particularly limited as long as it has such an action, and a known flame retardant can be used. For example, tricresyl phosphate, diphenyl cresyl phosphate, diphenyl octyl phosphate, tri (β-chloroethyl) phosphate, tributyl phosphate, tri (dichloropropyl) phosphate, triphenyl phosphate, tri (dibromopropyl) phos. Organic phosphorus compounds such as fate, chlorophosphonate, bromophosphonate, diethyl-N, N-bis (2-hydroxyethyl) aminomethylphosphate, di (polyoxyethylene) hydroxymethylphosphonate; chlorinated Chloride compounds such as polyphenyl, chlorinated polyethylene, diphenyl chloride, triphenyl chloride, pentachloride fatty acid ester, perchloropentacyclodecane, chlorinated naphthalene, tetrachloranhydride phthalic acid; antimony compounds such as antimony trioxide and antimony pentoxide; Phosphorus compounds such as phosphorus trichloride, phosphorus pentachloride, ammonium phosphate, ammonium polyphosphate, and other boron compounds such as zinc borate and sodium borate can be mentioned. The flame retardant may be used alone or in combination of two or more. Further, these may be either an uncoated product or a coated product. In particular, when ammonium polyphosphate is used, it is preferable because it can more effectively exert the dehydration cooling effect and the nonflammable gas generation effect.

The mixing ratio of the flame retardant is preferably 50 to 1000 parts by weight, more preferably 100 to 800 parts by weight, and more preferably 200 to 600 parts by weight with respect to 100 parts by weight (solid content) of the thermoplastic resin. In the present invention, the flame retardant is contained in a relatively high ratio in this way, so that good performance in heat resistance can be obtained.

The foaming agent generally has an action of generating a nonflammable gas in the event of a fire to foam a carbonized thermoplastic resin and a carbonizing agent to form a carbonized heat insulating layer having pores. The foaming agent is not particularly limited as long as it has such an action, and a known foaming agent can be used. For example, melamine and its derivatives, dicyandiamide and its derivatives, azodicarbonamide, urea, thiourea and the like can be mentioned. These can be used alone or in combination of two or more. Among these, melamine, dicyandiamide, azodicarbonamide and the like are preferable because they are excellent in the generation efficiency of nonflammable gas. Especially melamine is more suitable.

The mixing ratio of the foaming agent is preferably 5 to 500 parts by weight, more preferably 30 to 200 parts by weight, based on 100 parts by weight (solid content) of the thermoplastic resin. Within such a range, excellent foaming property can be exhibited, and good performance in heat insulating property and heat-resistant protection can be obtained.

The carbonizing agent generally has an action of forming a thick carbonized heat insulating layer having excellent heat insulating properties by dehydrating and carbonizing itself together with carbonization of the thermoplastic resin in the event of a fire. The carbonizing agent used in the present invention is not particularly limited as long as it has such an action, and known carbonizing agents can be used. For example, polyhydric alcohols such as pentaerythritol, dipentaerythritol and trimethylolpropane; starch, casein and the like can be mentioned. The carbonizer can be used alone or in combination of two or more. In particular, pentaerythritol and dipentaerythritol are preferable in that they are excellent in dehydration cooling effect and carbonized heat insulating layer forming effect.

The mixing ratio of the carbonizing agent is preferably 5 to 600 parts by weight, more preferably 10 to 400 parts by weight, based on 100 parts by weight (solid content) of the thermoplastic resin. Within such a range, the dehydration cooling effect and the carbonized heat insulating layer forming action can be exhibited, and good performance in heat insulating property and heat insulating property can be obtained.

The filler generally has an action of maintaining the strength of the carbonized heat insulating layer. The filler is not particularly limited as long as it has such an action, and a known filler can be used. For example, carbonates such as calcium carbonate, sodium carbonate, magnesium carbonate, aluminum oxide; metal oxides such as titanium dioxide, zinc oxide; silica, clay, talc, clay, kaolin, silica stone, silas, mica, wallastnite, etc. Examples thereof include inorganic powders such as silica sand, silica stone, quartz, hirustone, alumina, and fly ash. These can also be used in one or more species. The shape of the filler is not particularly limited, and examples thereof include a spherical shape, a granular shape, a plate shape, a rod shape, a lint-like shape, a needle shape, and a fibrous shape.

The blending ratio of the filler is preferably 10 to 300 parts by weight, more preferably 20 to 250 parts by weight, based on 100 parts by weight (solid content) of the thermoplastic resin. Within such a range, the strength of the carbonized heat insulating layer can be maintained, and good performance in heat resistance can be obtained.

Further, the heat-foamable resin sheet preferably contains a liquid halogen compound in addition to the above-mentioned components. Such a liquid halogen compound is a component that effectively works to improve the flexibility, heat resistance, and the like of the heat-foamable sheet. The term "liquid" as used herein means that the properties of the liquid are exhibited at room temperature (25 ° C.). Further, the liquid halogen compound does not include those having phosphorus. Examples of the halogen include fluorine, chlorine, bromine, iodine and the like, and among these, chlorine is preferable. Suitable liquid halogen compounds include chlorinated paraffin.

Further, the heat-foamable resin sheet preferably contains a fibrous substance in addition to the above-mentioned components. In the present invention, the inclusion of such a fibrous substance enhances the effect of maintaining the shape of the carbonized heat insulating layer. The fiber length of the fiber substance is preferably 1 to 30 mm, more preferably 2 to 20 mm.

Examples of the fiber material include inorganic fibers such as rock wool, glass fiber, silica-alumina fiber, ceramic fiber and potassium titanate fiber, and organic fiber such as carbon fiber, pulp fiber, polypropylene fiber, vinyl fiber and aramid fiber. Be done. Among these, inorganic fibers and carbon fibers having heat resistance are preferable, and glass fibers are most preferable. When glass fiber is used, excellent performance is exhibited even in foamability at the time of heating, and it is easy to obtain a porous carbonized layer having excellent heat insulating properties and heat-resistant protection.

The mixing ratio of the fibrous substance is preferably 0.1 to 30 parts by weight, more preferably 1 to 20 parts by weight, based on 100 parts by weight (solid content) of the thermoplastic resin.

In the heat-foamable sheet of the present invention, a mixture obtained by uniformly mixing each component may be molded by a known method. When mixing each component, it is also possible to mix the solvent or heat it as needed. When a bead-shaped or pellet-shaped thermoplastic resin is used, each component may be mixed while being heated to the softening temperature of the thermoplastic resin by a heating device and kneaded with a kneader or the like.

As a molding method, for example, a method of pouring a mixture into a mold and removing the mold after drying, a method of applying the mixture to a mold release paper by a heating coating machine and then winding it up, a method of extruding a mixture kneaded by a kneader or the like, and molding the mixture. A method of processing into a sheet by a machine, a method of supplying a mixture kneaded by a kneader or the like between rolls and processing into a sheet, a method of pelletizing the mixture and then processing into a sheet by an extrusion molding machine, Banbury Examples thereof include a method in which a mixture kneaded with a mixer or a mixing roll is rolled by a calender consisting of a plurality of heat rolls and processed into a sheet.

The thickness of the heat-foamable resin sheet (A) of the present invention may be appropriately set depending on the application site and the like, but is preferably about 0.2 to 10 mm, more preferably about 0.5 to 6 mm.

[Inorganic fiber sheet (B)]
The inorganic fiber sheet (B) of the present invention has a basis weight of 100 g / m ² or more and 2000 g / m ² or less (preferably 200 g / m ² or more and 1500 g / m ² or less). Within such a range, it has high flame-shielding property, is excellent in shape retention even when exposed to high temperature, and can maintain high strength. Further, the heat-foamable resin sheet (A) can form a heat insulating layer having a uniform thickness. The mechanism of its action is not clear, but when exposed to high temperatures such as during a fire, the inorganic fiber sheet (B) having excellent strength acts as a base material for the heat-foamable resin sheet (A), and thus heat. It is presumed that the foamable resin sheet (A) can be uniformly foamed in a certain direction to form a heat insulating layer.

The inorganic fiber used for the inorganic fiber sheet (B) is not particularly limited, and is, for example, rock wool, glass fiber, silica fiber, alumina fiber, silica-alumina fiber, carbon fiber, silicon carbide fiber, ceramic fiber, titanium. Examples include potassium acid acid fiber, metal fiber, and the like. These can also be used in combination of two or more. Such an inorganic fiber has excellent heat resistance and is difficult to melt even at a high temperature, so that the effect of the present invention can be exhibited. Further, in the present invention, if necessary, inorganic fibers treated with a resin such as an acrylic resin, a polyurethane resin, or a silicone resin can also be used.

The aspect of the inorganic fiber sheet (B) of the present invention is not particularly limited as long as it satisfies the above range, but may be any aspect such as a woven fabric, a non-woven fabric, or a braid. Further, these can also be used in combination of two or more kinds. Among them, in the present invention, it is particularly preferable to use a woven fabric. Thereby, the effect of the present invention can be further enhanced.

In the present invention, the woven fabric is formed by a group of fiber yarns in which an inorganic fiber bundle is restrained by twisting or the like, and is composed of warp yarns and weft yarns crossing each other at a substantially right angle. Examples of the structure include plain weave, twill weave, satin weave, vertical double weave, horizontal double weave, vertical and horizontal double weave, pile weave, entwined weave, and crest weave.

Further, the inorganic fiber sheet (B) preferably has a heat resistant temperature of 500 ° C. or higher (more preferably 700 ° C. or higher). Examples of such an inorganic fiber sheet (B) include those formed from inorganic fibers such as silica fiber, alumina fiber, silica-alumina fiber, and stainless steel fiber. In the present invention, the fiber containing silica fiber is particularly mentioned. Textiles are preferred. Further, in the present invention, if necessary, one side or both sides of the woven fabric may be coated or laminated with a resin such as an acrylic resin, a polyurethane resin or a silicone resin.

The thickness of the inorganic fiber sheet (B) of the present invention is preferably 0.1 to 5 mm (more preferably 0.3 to 2 mm). Within such a range, the effect of the present invention can be more easily obtained.

[Inorganic fiber sheet (C)]
The inorganic fiber sheet (C) of the present invention has a texture of less than 100 g / m ² (preferably 5 g / m ² or more and 95 g / m ² or less, more preferably 10 g / m ² or more and 90 g / m ² or less). Within such a range, it is possible to form a heat insulating layer having a uniform thickness without inhibiting the foaming of the heat-foamable resin sheet (A) under a high temperature such as in the event of a fire. Although the mechanism of this action is not clear, the foamable resin sheet (A) enters the gaps between the fibers constituting the inorganic fiber sheet (C), so that the resin component of the heat-foamable resin sheet (A) is in a molten state. Even in this case, sagging and the like can be prevented, and since the inorganic fiber sheet (C) is lightweight, the foaming of the foamable resin sheet (A) is not hindered. As a result, it is presumed that a uniform heat insulating layer can be formed.

Examples of the inorganic fiber used for the inorganic fiber sheet (C) include the same as those of the inorganic fiber sheet (B). Further, in the present invention, it is preferable to contain inorganic fibers, particularly glass fibers, which have excellent heat resistance and are difficult to melt even at high temperatures. Further, in the present invention, if necessary, inorganic fibers treated with a resin such as an acrylic resin, a polyurethane resin, or a silicone resin can also be used.

As the aspect of the inorganic fiber sheet (C) of the present invention, any of woven fabric, non-woven fabric (paper), braid, etc. may be used as long as it satisfies the above range. These can also be used in combination of two or more. In the present invention, it is particularly preferable to use either a non-woven fabric, a braided fabric, or a combination of a non-woven fabric and a braided fabric.

In the present invention, the non-woven fabric is a cloth-like (sheet-like) fabric (formed without weaving) by entwining independent fibers one by one or adhering them with heat or an adhesive. ). Further, the braided cloth is a woven fabric in which a group of fiber yarns aligned in one direction and a group of fiber yarns aligned in a different direction are entwined or laminated. The structure of the braid may be any one having a mesh structure, and depending on the number of axes of the fiber yarn group, there are many braids such as 2-axis braid, 3-axis braid, and 4-axis braid. Examples include framing cloth.

The thickness of the inorganic fiber sheet (C) is preferably 0.01 to 3 mm (more preferably 0.05 to 1 mm). Within such a range, the effect of the present invention can be more easily obtained.

Further, in the present invention, the inorganic fiber sheet (B) and the inorganic fiber sheet (C) may contain organic fibers in addition to the inorganic fibers as long as the effects of the present invention are not impaired. As such a sheet, for example, a sheet formed from a thread group in which an inorganic fiber and an organic fiber are mixed, a sheet formed by a thread group of an inorganic fiber and a thread group of an organic fiber, or a laminated inorganic fiber sheet and an organic fiber sheet. The ones that have been made are mentioned.

Examples of the organic fiber include pulp fiber, polyester fiber, polypropylene fiber, aramid fiber, vinylon fiber, polyethylene fiber, polyarylate fiber, PBO fiber, nylon fiber, acrylic fiber, vinyl chloride fiber, cellulose fiber and the like. The organic fiber may be such that it melts in a temperature range of about 150 ° C. to become a liquid state, but it is preferable that the organic fiber does not melt in such a temperature range. These can also be used in combination of two or more.

[Laminate]
The laminate of the present invention is suitably used for partitioning a space, particularly an interior space of a building, and is the heat-foamable resin sheet (A), the inorganic fiber sheet (B), and the inorganic fiber sheet. (C) is laminated. Specifically, as shown in FIG. 1, when each is composed of one sheet, the inorganic fiber sheet (B) is on one side of the heat-foamable resin sheet (A) and the other side is on the other side. The inorganic fiber sheet (C) is arranged in [(B) / (A) / (C)].

Further, as shown in FIG. 2, two or more layers can be used in the laminated body [(B) / (A) / (C)] according to the desired heat resistance. Examples of the laminated body of the present invention include the following aspects.
(1) (B) / (A) / (C)
(2) (B) / (A') / (A) / (C)
(3) (B) / (C') / (A) / (C)
(4) (B) / (C') / (A') / (A) / (C)
(5) (C') / (B) / (A) / (C)
(6) (C') / (A') / (B) / (A) / (C)
(7) (A') / (C') / (B) / (A) / (C)
(8) (B') / (B) / (A) / (C)
And so on. The above (A'), (B'), and (C') indicate the second layer of each sheet.

In the present invention, it is particularly preferable to use two or more layers (A) ((2), (4), (6), (7) above). In this case, at least one kind of (A) may satisfy the condition of the above (1), but preferably two or more layers (A) satisfy the above (1) condition (the above). (2), (4), (6)).
Further, when two or more layers of (C) are used, (C) can be arranged on both sides of (A), and (B) can be further arranged on one of the surfaces ((3) and (4) above). ).
Further, when two or more layers (B) are used, both sides of the laminated body are (B) (for example, [(B') / (A) / (B)], [(B') / (C). ) / (A) / (B)] etc.) should be avoided.

As a method of laminating the heat-foamable resin sheet (A), the inorganic fiber sheet (B), and the inorganic fiber sheet (C),
(I) A method of laminating using an adhesive,
(II) A method of crimping and laminating the heat-foamable resin sheet (A) at the time of manufacturing,
(III) A method of combining the above (I) and the above (II),
And so on.
As the adhesives (I) and (III) above, known adhesives can be used, but in the present invention, it is preferable to use a heat-resistant adhesive. Further, the crimping as described in (II) above is a method in which a heat-foamable resin sheet (A) and an inorganic fiber sheet (B) and / or an inorganic fiber sheet (C) are directly laminated (adjacently laminated). be. In the present invention, it is particularly preferable that the heat-foamable resin sheet (A) and the inorganic fiber sheet (C) are directly laminated. Thereby, the effect of the present invention can be further enhanced.

Examples are shown below to clarify the features of the present invention.

The materials used are shown below.
-Thermoplastic resin: vinyl acetate / ethylene copolymer resin (softening temperature 66 ° C)
・ Foaming agent: Melamine ・ Carbide: Pentaerythritol ・ Flame retardant: Ammonium polyphosphate ・ Filler: Titanium oxide ・ Inorganic fiber sheet (B1): Silica fiber woven fabric (grain 700 g / m ² , thickness 0.7 mm, red woven fabric , SiO ₂ content 97% by weight)
-Inorganic fiber sheet (B2): Silica fiber woven fabric (grain 500 g / m ² , thickness 0.6 mm, twill weave, SiO ₂ content 99% by weight)
-Inorganic fiber sheet (B3): Silica fiber woven fabric (grain 1200 g / m ² , thickness 1.4 mm, satin weave, SiO ₂ content 99% by weight)
-Inorganic fiber sheet (B4): Silica-alumina fiber woven fabric (grain 650 g / m ² , thickness 0.7 mm, satin weave, Al ₂ O ₃ content 68%, SiO ₂ content 27% by weight, B ₂ O ₃ Content 5%)
-Inorganic fiber sheet (B5): Carbon fiber woven fabric (weight 410 g / m ² , thickness 0.8 mm, plain weave)
-Inorganic fiber sheet (C1): Glass non-woven fabric (weight 30 g / m ² , thickness 0.25 mm)
-Inorganic fiber sheet (C2): Glass non-woven fabric (weight 60 g / m ² , thickness 0.4 mm)
-Inorganic fiber sheet (C3): Glass non-woven fabric (weight 85 g / m ² , thickness 0.6 mm)
-Inorganic fiber sheet (C4): Glass braid (mesh) (Metsuke 15 g / m ² , Thickness 0.2 mm, Opening 1-2 mm)
-Organic fiber sheet: Polyester non-woven fabric (weight 20 g / m ² , thickness 0.01 mm)

[Manufacturing of heat-foamable resin sheet (A)]
(Thermal foamable resin sheet (A))
100 parts by weight of the thermoplastic resin, 60 parts by weight of the foaming agent, 60 parts by weight of the charcoal agent, 300 parts by weight of the flame retardant, and 75 parts by weight of the filler are kneaded with a kneader heated to 120 ° C., rolled, and then allowed to cool to room temperature. A sheet-shaped thermoplastic resin sheet (A) having a thickness of 1.5 mm was obtained. The following raw materials were used.

[Manufacturing of laminate]
(Laminate 1)
An inorganic fiber sheet (B1) is placed on one surface of the heat-foamable resin sheet (A), and an inorganic fiber sheet (C1) is placed on the other side so as to be [(B1) / (A) / (C1)]. , Laminated using an acrylic adhesive to obtain a laminated body 1.

(Laminated body 2)
When the heat-foamable resin sheet (A) is rolled, the inorganic fiber sheet (C1) is laminated, and the inorganic fiber sheet (C1) is laminated on one surface of the sheet-like heat-foamable resin sheet (A) having a thickness of 1.5 mm. (P1) ([(C1) / (A)]) was obtained.
Next, the laminate (P1) and the inorganic fiber sheet (B1) were laminated using an acrylic adhesive so as to be [(B1) / (A) / (C1)] to obtain a laminate 2. ..

(Laminate 3)
Using the above two laminated bodies (P1) and one inorganic fiber sheet (B1), (A) / (A) / (B1) / (A) / (C1)] is obtained. The surface and the (B1) surface were laminated with an acrylic adhesive to obtain a laminated body 3.

(Laminated body 4)
Using the above two laminated bodies (P1) and one inorganic fiber sheet (B1), (B1) so as to be [(B1) / (C1) / (A) / (A) / (C1)]. The surface, the (C1) surface, and the (A) surface were laminated with an acrylic adhesive to obtain a laminated body 4.

(Laminated body 5)
Using the above two laminated bodies (P1) and one inorganic fiber sheet (B), (B1) so as to be [(B1) / (C1) / (A) / (C1) / (A)]. The surface and the (C1) surface, and the (A) surface and the (C1) surface were laminated with an acrylic adhesive to obtain a laminated body 5.

(Laminated body 6)
The laminate (P1) and the inorganic fiber sheet (B2) were laminated with an acrylic adhesive so as to be [(B2) / (A) / (C1)] to obtain a laminate 6.

(Laminated body 7)
The laminate (P1) and the inorganic fiber sheet (B3) were laminated with an acrylic adhesive so as to be [(B3) / (A) / (C1)] to obtain a laminate 7.

(Laminated body 8)
The laminate (P1) and the inorganic fiber sheet (B4) were laminated with an acrylic adhesive so as to be [(B4) / (A) / (C1)] to obtain a laminate 8.

(Laminated body 9)
The laminate (P1) and the inorganic fiber sheet (B5) were laminated with an acrylic adhesive so as to be [(B5) / (A) / (C1)] to obtain a laminate 9.

(Laminated body 10)
When the heat-foamable resin sheet (A) is rolled, the inorganic fiber sheet (C2) is laminated, and the inorganic fiber sheet (C2) is laminated on one surface of the sheet-like heat-foamable resin sheet (A) having a thickness of 1.5 mm. (P2) ([(C2) / (A)]) was obtained.
Next, the laminate (P2) and the inorganic fiber sheet (B1) were laminated using an acrylic adhesive so as to be [(B1) / (A) / (C2]) to obtain a laminate 10.

(Laminated body 11)
When the heat-foamable resin sheet (A) is rolled, the inorganic fiber sheet (C3) is laminated, and the inorganic fiber sheet (C3) is laminated on one surface of the sheet-like heat-foamable resin sheet (A) having a thickness of 1.5 mm. (P3) ([(C3) / (A)]) was obtained.
Next, the laminate (P3) and the inorganic fiber sheet (B1) were laminated using an acrylic adhesive so as to be [(B1) / (A) / (C3]) to obtain a laminate 11.

(Laminated body 12)
When the heat-foamable resin sheet (A) is rolled, the inorganic fiber sheet (C4) is laminated, and the inorganic fiber sheet (C4) is laminated on one surface of the sheet-like heat-foamable resin sheet (A) having a thickness of 1.5 mm. (P4) ([(C4) / (A)]) was obtained.
Next, the laminate (P4) and the inorganic fiber sheet (B1) were laminated using an acrylic adhesive so as to be [(B1) / (A) / (C4]) to obtain a laminate 12.

(Laminated body 13)
An inorganic / organic composite fiber sheet (C5) in which an inorganic fiber sheet (C4) and an organic fiber sheet are laminated was obtained in advance.
When the heat-foamable resin sheet (A) is rolled, the inorganic / organic composite fiber sheet (C5) is laminated so that the inorganic fibers are on the side of the heat-foamable resin sheet (A), and the thickness is 1.5 mm. A laminated body (P5) ([(C5) / (A)]) in which an inorganic / organic composite fiber sheet (C5) was pressure-bonded to one surface of a heat-foamable resin sheet (A) was obtained.
Next, the laminate (P5) and the inorganic fiber sheet (B1) were laminated using an acrylic adhesive so as to be [(B1) / (A) / (C5]) to obtain a laminate 13.

(Laminated body 14)
An inorganic fiber sheet (B1) was laminated on one surface of the heat-foamable resin sheet (A) using an acrylic adhesive to obtain a laminate 14 [(B1) / (A)].

(Laminated body 15)
An inorganic fiber sheet (C1) was laminated on one surface of the heat-foamable resin sheet (A) using an acrylic adhesive to obtain a laminate 15 [(C1) / (A)].

(Laminated body 16)
Inorganic fiber sheets (C1) were laminated on both sides of the heat-foamable resin sheet (A) using an acrylic adhesive to obtain a laminate 16 [(C1) / (A) / (C1)].

(Laminated body 17)
Inorganic fiber sheets (B1) were laminated on both sides of the heat-foamable resin sheet (A) using an acrylic adhesive to obtain a laminate 17 [(B1) / (A) / (B1)].

(Test Example 1)
(Heating test)
The upper end of the obtained laminated body 1 is fixed to a steel material and suspended as a test body 1, and the test body is heated for a certain period of time (1 hour) according to the standard heating curve of ISO 834, and then the test body is cooled to room temperature. , The shape of the test piece was visually evaluated. As a result, a substantially uniform carbonized heat insulating layer was formed in the heat-foamable resin sheet portion, and excellent flame-shielding property and heat-insulating property were exhibited.

(Test Examples 2 to 17)
Test bodies 2 to 17 were prepared in the same manner as in Test Example 1 except that the laminated bodies 2 to 17 were used instead of the laminated body 1 of Test Example 1, and a heating test was carried out (Test Examples 2 to 17). ).

In each of the test body 2 to the test body 13, a substantially uniform carbonized heat insulating layer was formed in the heat-foamable sheet portion, and excellent flame insulation and heat insulating properties were exhibited. Among the test bodies, the test body 4 showed even better flame-shielding property and heat-insulating property without any displacement or falling off of the carbonized heat insulating layer. On the other hand, in Test Example 14, the carbonized heat insulating layer fell off and the heat insulating property could not be maintained. Further, in Test Examples 15 and 16, the formation of the carbonized heat insulating layer was insufficient and the heat-foamable sheet fell off, and in Test Example 17, the foaming of the heat-foamable sheet was insufficient.

Claims (4)

It is a method of forming a fireproof section by using a laminated body as a partition of a space.
The above-mentioned laminated body is suspended and installed in the space, and is installed.
The laminate has an inorganic fiber sheet (B) having a basis weight of 100 g / m ² or more and 2000 g / m ² or less and a thickness of 0.1 to 5 mm on one surface side of the heat-foamable resin sheet (A).
On the other surface side of the heat-foamable resin sheet (A), an inorganic fiber sheet (C) having a basis weight of less than 100 g / m ² and a thickness of 0.01 to 3 mm,
A method of forming a fire protection compartment, characterized in that the fire protection compartments are arranged. The method for forming a fireproof compartment according to claim 1, wherein the inorganic fiber sheet (B) is a woven fabric. The method for forming a fireproof compartment according to claim 1 or 2, wherein the inorganic fiber sheet (C) is a braided cloth and / or a non-woven fabric. The fireproof compartment according to any one of claims 1 to 3, wherein the heat-foamable resin sheet (A) contains a thermoplastic resin, a flame retardant, a foaming agent, a carbonizing agent, and a filler. Forming method .

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