JP2015121012A - Thermal expansion material with designability - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof material which can be attached easily and has improved designability.SOLUTION: A fireproof material 1 comprises a thermal expansion material 2, and a covering member 3 that covers at least part of the thermal expansion material 2, and permits the expansion of the thermal expansion material 2 caused by heating.

Description

The present invention relates to a fire prevention material used for fire prevention of a gap or an opening of a building material.

  In a fire prevention area or a semi-fire prevention area, for example, a gap between members of an opening device such as a window, a door, a door (door) or between the opening device and a structural material such as a roof material, a wall material, a molding material, and a floor material Or, unlike a normal window, the opening is designed to prevent the spread of fire from the neighbor's fire to the house or from the fire of the house to the neighbor.

  For example, in Patent Document 1, a thermally expandable refractory material layer is sandwiched between the inner wall surface of the sliding window and the inner wall of the inner window adjacent to the inner child screen. A synthetic resin sliding window provided so as to face each other is disclosed.

  Patent Document 2 discloses a fire door that includes a structural material between a pair of surface materials facing each other of the fire door, and a fire spread prevention material having a heat expansion property is disposed on a prospective surface of the structural material. Yes.

  Thus, conventionally, a fireproof material (thermal expansion material) that expands during heating is attached, and the fireproof performance is expressed by closing the gap between the members of the opening device during a fire.

JP2005-351008 JP2013-91916

  Moreover, in the structure of patent document 1 and 2, it has a structure which installs a thermal expansion material in a window frame, or is pinched | interposed between the members of a fire door, and arrangement | positioning of a thermal expansion material takes time. Moreover, the thermal expansion material of patent documents 1 and 2 uses the thermal expansion material by itself, and when such a thermal expansion material is provided in the gap between the members of the opening device, the thermal expansion material is visually recognized and looks good. Is bad and detracts from design.

  An object of the present invention is to provide a fireproof material that is easy to mount and has improved design.

The present inventors have found that the above object can be achieved by covering the thermal expansion material with a covering member that allows expansion of the thermal expansion material accompanying heating, and have completed the present invention.
That is, the present invention is as follows.
[1] A fireproof material comprising a thermal expansion material and a covering member that covers at least a part of the thermal expansion material and allows expansion of the thermal expansion material due to heating.
[2] The covering member is
Item 2. The fireproofing material according to Item 1, comprising (i) a thermoplastic resin, elastomer, rubber, or a combination thereof, or (ii) a metal, a metal alloy, or a combination of a metal and the above (i).
[3] The fireproofing material according to item 1 or 2, wherein the thermal expansion material includes a thermoplastic resin or a thermosetting resin, thermal expansion graphite, and an inorganic filler.
[4] The fireproof material according to any one of items 1 to 3, wherein the covering member covers the entire circumference along the longitudinal direction of the thermal expansion material.
[5] The fireproof material according to any one of Items 1 to 4, which has a similar color to a body to which the fireproof material is attached.
[6] An opening device to which the fireproof material according to any one of items 1 to 5 is attached.
[7] A fireproof prevention structure for building materials in which the fireproofing material according to any one of Items 1 to 4 is disposed in a gap in the opening device or a gap between the opening device and the structural material.

  According to the present invention, the fireproof material can be easily attached to the mounted body, and the thermal expansion material is covered with the covering member having a color and / or design that does not impair the designability of the window, so that the designability is also improved. .

(A) The perspective view of the fireproof material of this invention, (B) The perspective view at the time of reversing the fireproof material of FIG. 1 (A). The front view of a sliding window. (A) Schematic sectional view taken along line 3-3 of the sliding window of FIG. 2, (B) Schematic sectional view showing the fireproof performance of the fireproofing material of FIG. 3 (A) when a fire occurs. The perspective view of a single swing window. (A) Schematic cross-sectional view of the single window of FIG. 4, (B) Schematic cross-sectional view showing the fireproof performance of the fireproof material of FIG. 5 (A) when a fire occurs. (A), (B), (C) The schematic which shows the other example of the fire prevention material of this invention. The schematic sectional drawing which shows the fireproof prevention structure which hold | maintained the fireproof material of this invention with the holder member extended from the to-be-attached body. The perspective view of the fire prevention material 1 which showed sectional drawing in FIG.6 (C).

  Hereinafter, the fireproof material of this invention, the opening part apparatus which attached the fireproof material, and the fireproof prevention structure of a building material are demonstrated, referring drawings. In the present specification, the “opening device” refers to a device having an opening among building materials.

  Referring to FIG. 1A, the fireproof material 1 of the present invention includes a long plate-like thermal expansion material 2 and a covering member 3 that accommodates the thermal expansion material 2. The covering member 3 is a substantially rectangular parallelepiped having a through-hole 4 extending along the longitudinal direction inside the covering member 3, and covers the entire periphery of the thermal expansion material 2 along the longitudinal direction. In FIG. 1B, when the fire protection material 1 of FIG. 1A is reversed, the surface extending in the longitudinal direction of the covering member 3, that is, the upper surface in the figure, serves as an adhesive means along the longitudinal direction of the thermal expansion material 2. The adhesive tape 5 is affixed. Further, a release paper (not shown) may be affixed to the adhesive tape 5, and the release paper is peeled off when the fireproof material 1 is attached to the attached body. By using the adhesive tape 5, the fireproof material 1 can be easily attached to the attached body. In the present specification, “long” means that a certain member has a first dimension and a second dimension longer than the first dimension perpendicular to the first dimension.

  The shape and dimensions of the thermal expansion material 2 and the covering member 3, that is, the length, width, and thickness are not particularly limited, but the length of the thermal expansion material 2 is usually 10 cm to 3 m, and the length of the covering member 3 is also usually about 10 cm to 3 m. It is. As an example, the thermal expansion material 2 has a length of 1 m, the thermal expansion material 2 has a width of 10 mm, and a thickness of 1 mm. The length of the thermal expansion material 2 is usually the same as or shorter than the length of the covering member 3. For example, the thermal expansion material 2 having the same length as that of the covering member 3 may be accommodated inside the covering member 3. Even if a plurality of thermal expansion materials 2 are arranged in one coating member 3 so that the three thermal expansion materials 2 of 1 m are arranged in a straight line with their ends abutted inside the coating material 3 Good. Even if the length of the thermal expansion material 2 is short, it is possible to increase the length of the fireproof material 1 with no apparent seam by integrating with the covering member 3 longer than that.

  The thermal expansion material 2 is formed from a thermal expansion material that expands by heating, such as a synthetic resin kneaded with expandable graphite. The resin constituting the thermal expansion material may be a thermoplastic resin or a thermosetting resin. The refractory resin composition constituting the thermally expandable material usually contains a thermoplastic resin or a thermosetting resin, thermally expandable graphite, and an inorganic filler, and the ratio of these components is not particularly limited. The heat-expandable graphite is 10 to 300 parts by weight and the inorganic filler is 30 to 500 parts by weight with respect to 100 parts by weight of the plastic resin or thermosetting resin. Various refractory resin compositions constituting such a thermally expandable material are known, for example, a thermoplastic resin containing a phosphorus compound, neutralized thermally expandable graphite, and an inorganic filler, Each content is 20 to 200 parts by weight of the total amount of phosphorus compound and neutralized thermally expandable graphite and 50 to 500 parts by weight of the inorganic filler with respect to 100 parts by weight of the thermoplastic resin. A fire-resistant resin composition (JP-A-9-227716) characterized in that the weight ratio of neutralized heat-expandable graphite: phosphorus compound is 9: 1 to 1: 100; Parts, 10 to 300 parts by weight of neutralized thermally expandable graphite and 50 to 500 parts by weight of an inorganic filler (JP 2000-143941); 100 parts by weight of epoxy resin, Thermally expandable graphite 15 to 150 weight It is impregnated with a net or mat made of a nonflammable fibrous material having a weight of 25 to 2000 g per m @ 2 in a sheet having a thickness of 0.3 to 6 mm consisting of 30 parts by weight and 30 parts by weight of an inorganic filler. Refractory sheet composition (Japanese Patent Laid-Open No. 2002-12678); a heat-expandable inorganic substance (particularly neutralized heat-expandable graphite) and a rubber component (A) comprising non-crosslinked rubber and / or partially crosslinked rubber ) (B), an inorganic filler (C), and a liquid resin (D) having an average molecular weight of 2000 to 4000, an adhesive refractory rubber composition (Japanese Patent Laid-Open No. 2003-192840); A refractory resin composition comprising thermally expandable graphite in a vinyl chloride resin, wherein the compounding ratio is 1 to 10 parts by weight of thermally expandable graphite with respect to 100 parts by weight of the polyvinyl chloride resin. Resin composition (JP 2008-180068) etc. I can get lost.

  The covering member 3 may be made of any material that allows the thermal expansion material 2 to expand due to heating. In this specification, “allowing expansion of the thermally expandable material 2 due to heating” means that when the thermally expandable material 2 is overheated, the covering member 3 is melted, decomposed, and / or broken. It refers to enabling the expansion material 2 to expand, that is, not hindering. In one embodiment, the softening point of the material forming the covering member 3 is lower than the temperature at which the thermal expansion material 2 starts to expand. Preferably, the covering member 3 is formed of a material that is softened or damaged at a temperature of 200 ° C. or higher at which the thermal expansion material 2 starts to expand and does not hinder expansion of the thermal expansion material 2. Further, the covering member 3 may be cut or perforated in advance so as not to prevent the expansion of the thermal expansion material 2.

  The covering member 3 may be formed of a flammable material or a nonflammable material. When the covering member 3 is a flammable material, the thermal expansion material 2 is more easily expanded, and a predetermined fire resistance performance is exhibited well.

  Although the flammable material is not particularly limited, it is preferable to use a thermoplastic resin, an elastomer, a rubber, or a combination thereof. Examples of the thermoplastic resin include a fluororesin, a polyphenylene ether, a modified polyphenylene ether, a polyphenylene sulfide, Polycarbonate, polyetherimide, polyetheretherketone, polyarylate, polyamide, polyamideimide, polybutadiene, polyimide, acrylic resin, polyacetal, polyamide, polyethylene, polyethylene terephthalate, polycarbonate, polyester, polystyrene, polyphenylene sulfide, polybutylene terephthalate, polypropylene, Examples include elastomers such as polyvinyl chloride, ABS resin, and AS resin. -Styrene elastomers, ester elastomers, amide elastomers, vinyl chloride elastomers, etc. Examples of rubbers include natural rubber, silicone rubber, styrene-butadiene rubber, isoprene rubber, butadiene rubber, chloroprene. Examples thereof include rubber, acrylonitrile / butadiene rubber, nitrile butadiene rubber, butyl rubber, ethylene / propylene rubber, ethylene / propylene / diene rubber, urethane rubber, silicone rubber, and fluorine rubber.

  The covering member 3 may be composed of a metal, a metal alloy, or a combination of a metal and the above-described combustible material. In this case, the covering member 3 is preferably coated as a thin film such as a metal foil, particularly an aluminum foil. It is set as the structure which permits expansion | swelling of the thermal expansion material 2 accompanying a heating by making the thickness of the member 3 comparatively small, or giving the cutting | disconnection or hole processing to the covering member 3. FIG. Although the thickness of metal foil is not specifically limited, Usually, they are 1 micrometer-100 micrometers.

  The appearance of the covering member 3 may be arbitrary, and the color and pattern can be determined according to the purpose. In one embodiment, the color of the covering member 3, that is, the color of the fireproof material 1 is similar to that of the mounted body to which the fireproof material 1 is attached. For example, for example, the color of the covering member 3 to which the fireproof material 1 is attached to an aluminum window frame may be aluminum. Similar colors mean three elements represented by color characteristics, that is, hues that are the same or close to each other among hue, brightness, and saturation. Specifically, warm colors, cold colors, white and milky white, transparent and translucent, etc. can be defined as similar colors. The covering member 3 can be given a design by giving an arbitrary pattern such as visually producing warmth as a wood grain. Thus, it is possible to improve the designability by coating the thermal expansion material 2 with the covering member 3 so that the black-gray designability is covered. Furthermore, by covering the covering member 3, the weather resistance of the thermal expansion material 2 is improved, and the long-term durability of the fireproof material 1 is also improved.

  The mounted body to which the fireproofing material 1 of the present invention is attached may be any part to which the fireproofing material 1 is attached in any building material, and the building material is preferably a window, a shoji, a door, a shutter, a bran, a balustrade, etc. Opening devices including joinery, and structural materials such as roofing materials, wall materials, molding materials and flooring materials. By attaching the fireproof material 1 to the opening device or the structural material, it is possible to prevent the spread of fire from the gap (or also referred to as the opening) in the opening device or the gap between the opening device and the structural material. Although the material of the part of the opening part apparatus to which the fire prevention material 1 is attached is not specifically limited, For example, they may be made of aluminum, aluminum resin composite, resin, wood, steel, or the like.

  Therefore, the fireproof structure of the building material in which the fireproofing material of the present invention is arranged in the opening device to which the fireproofing material of the present invention is attached, and the gap in the opening device, or the gap between the opening device and the structural material is also provided. Inclusion is also encompassed by the present invention.

  The fireproof material 1 of the present invention can be manufactured by manufacturing the thermal expansion material 2, separately manufacturing the covering member 3, and combining the thermal expansion material 2 and the covering member 3. The manufacturing method of the fireproof material 1 is not particularly limited. For example, when the covering member 3 is a thermoplastic resin, elastomer, rubber, or a combination thereof, the covering member 3 is formed by a known method, and the hollow portion of the covering member 3 is formed. The fire expansion material 2 may be manufactured by inserting the thermal expansion material 2 into the cover member, or the upper half member and the lower half member of the covering member 3 are manufactured, and the thermal expansion material 2 is disposed between them, and the covering member The fire prevention material 1 may be manufactured by joining the upper half member and the lower half member of 3. When the thermal expansion material 2 has adhesiveness (for example, when the thermal expansion material contains a butyl material), the covering member 3 is attached by the adhesiveness of the thermal expansion material 2 itself. Further, the fireproofing material 1 of the present invention may be manufactured by integrally molding the thermal expansion material 2 and the covering member 3 by coextrusion molding or two-color molding. In the case where the covering member 3 is a thin film such as a metal foil, the covering member 3 is optionally cut and a plurality of holes are formed, and then the periphery of the thermal expansion material 2 is covered with the covering member 3 to manufacture the fireproof material 1. Also good.

  Next, the example which attached the fire prevention material 1 of this invention to the opening part apparatus is demonstrated. FIG. 2 is a front view of a typical sliding window viewed from the indoor side when the window is closed. In the illustrated sliding window structure, a window frame 10 is attached to an opening of a structure (not shown), which is a building frame, in an appropriate manner.框 11 'is built in a closed state. These window rods 11 and 11 'are a shoji summon 13, a shoji summon 13', a shoji door tip 14, a nadir door tip 14 ', an outer shoji top 15 and an inner shoji top 15 Each frame material of ', the outer shoji lower armor 16 and the inner shoji lower armor 16' is formed by a four-round frame. In addition, the structure of the window frame 10 and each frame material may be a known form, and the window frame 10 and each frame material are made of any material such as a metal such as aluminum, wooden, or a synthetic resin. May be. Glasses 12 and 12 'are fixed in the frame of the window fences 11 and 11'. When the key 17 is rotated downward and unlocked, the window lamps 11, 11 'can slide in the left-right direction.

  3A is a schematic cross-sectional view taken along line 3-3 of the sliding window of FIG. FIG. 3 (B) is a schematic cross-sectional view showing the fireproof performance of the fireproof material 1 of FIG. 3 (A) when a fire occurs. 3 (A) and 3 (B) schematically show only members necessary for the description of the present invention, and details of the internal structure and the like of the outer screen window 11 and the inner window 11 'are omitted. . In the configuration of FIG. 3 (A), when the window is closed, there is a gap 15 between the opposing surface 13a and the opposing surface 13'a of each of the external shoji summoning cage 13 and the inner shoji summoning salmon 13 '. 13'a includes the fireproof material 1 along the longitudinal direction of the inner armor summoning scissors 13 as an attached body with the adhesive tape 5 adhered, preferably the total length in the longitudinal direction of the inner armor summoning scissors 13 It is arrange | positioned so that it may extend.

  As shown in FIG. 3B, when a fire occurs from the direction of the arrow, the thermal expansion material 2 of the fireproof material 1 expands due to the heat of the fire and closes the gap 15. This reduces or prevents the intrusion of fire and smoke between the window sill 11 and the window sill 11 ′ (external child summoning scissors 13 and internal scalpel summoning scissors 13), and greatly improves the fire resistance of the sliding window. Is done. In addition, the fireproof material 1 may be arrange | positioned to the opposing surface 13a, and may be arrange | positioned to both opposing surface 13a and opposing surface 13'a.

  4 and FIGS. 5A and 5B are examples in which the fireproof material 1 is attached to another opening device, FIG. 4 is a perspective view of a single opening window, and FIG. 5A is a single opening of FIG. FIG. 5B is a schematic cross-sectional view showing the fireproof performance of the fireproof material of FIG. 5A when a fire occurs. 5A and 5B schematically show only members necessary for the description of the present invention, and details of the internal structure of the window frame 30 are omitted.

  4 and 5A, in the illustrated case of the casement window, a window frame 20 having an L-shaped cross section is attached to an opening of a structure (not shown) which is a building frame in an appropriate manner. In this, a synthetic resin four-frame frame awning 30 is built. The window casing 30 includes a distal end casing 31 and a proximal end casing 32, and the configurations of the window frame 20 and the window casing 30 may be in a known form, and the window frame 20 and the window casing 30 are made of aluminum or the like. It may be made of any material such as metal, wood, or synthetic resin. At the time of unlocking, the handle 37 can be turned clockwise to turn the window rod 30 from the position indicated by the solid line to the position indicated by the dotted line. When the window is closed, the portion 21 of the window frame 20 extending overlapping the window rod 30 and the opposing surfaces 21a, 31a of the distal end side rod 31, and the portion 22 of the window frame 20 extending overlapping the window rod 30 and the proximal end rod 32 There is a gap 35 between the facing surfaces 22a and 32a, and the fireproof material 1 is attached to the facing surfaces 21a and 22a along the lengths of the portions 21 and 22 as the mounted bodies with the adhesive tape 5 adhered. , Preferably, the portions 21 and 22 are arranged so as to extend the entire length in the longitudinal direction.

  As shown in FIG. 5B, when a fire occurs from the direction of the arrow, the thermal expansion material 2 of the fireproof material 1 expands due to the heat of the fire and closes the gap 35. Thereby, the intrusion of fire and smoke from between the window sill 30 and the window frame 20 is reduced or prevented, and the fire resistance of the single-sided window is greatly improved. In addition, the fireproof material 1 may be arrange | positioned to the opposing surfaces 31a and / or 32a, and may be arrange | positioned to both opposing surfaces 21a and 22a and opposing surfaces 31a and 32a.

So far, the present invention has been described by taking the above embodiment as an example. However, the present invention is not limited to this, and various modifications as described below are possible.
-The covering member 3 should just cover at least one part of the thermal expansion material 2 as long as the fire prevention material 1 can exhibit fire prevention performance. For example, in FIGS. 1 (A) and 1 (B), the covering member 3 covers the entire periphery of the thermal expansion material 2 along the longitudinal direction, but both ends in the longitudinal direction may be further covered. As shown in FIG. 6A, the covering member 3 may cover the left and right and upper three surfaces of the thermal expansion material 2 attached to the attachment body 40 via the adhesive tape 5, or FIG. As shown in (B), the covering member 3 may cover the left and upper two surfaces of the thermal expansion material 2 attached to the attached body 40 via the adhesive tape 5. Moreover, as shown in FIG. 6C, the covering member 3 may cover the upper surface of the thermal expansion material 2 attached to the attached body 40 via the adhesive tape 5 (see FIG. 6). FIG. 8 is a perspective view of the fireproofing material 1 whose sectional view is shown in FIG. The covering member 3 may be applied only to the surface exposed to the human eye, but the covering member 3 may be applied to more surfaces of the thermal expansion material 2 as long as the thermal expansion of the thermal expansion material 2 is not hindered. good.
-Adhesive means for attaching the fireproof material 1 to the attached body is not limited to the adhesive tape 5, and physical fixing such as adhesive and screws, and holders 42 and 44 extending from the attached body 40 as shown in FIG. 7 are provided. The fireproof material 1 may be attached therein.

  The disclosures of all patent applications and documents cited herein are hereby incorporated by reference in their entirety.

  Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited thereto.

(Evaluation method)
An aluminum sliding window having a height of 1100 mm and a width of 1700 mm as shown in FIG. 3 was used. Each glass pane of the sliding window is composed of a glass plate with a thickness of 6.8 mm on the outdoor side and a float plate glass with a thickness of 4 mm on the indoor side. Consists of The fireproof materials of Example 1, Example 2, and Comparative Example 2 are extended on one of the opposing surfaces of the two summoning tubs of the sliding window so as to extend along the longitudinal direction of the summoning jars. Affixed with an adhesive tape.

A 20-minute heating test was conducted in accordance with ISO834 using the sliding window described above, and the following determination was made in 20 minutes. ~ 3. The one that fits all of the above was marked as ○.
1. 1. No continuous flame for 10 seconds or longer on the heated back side 2. No continuous flame squirting for 10 seconds or longer on the heated back side No cracks, damage, gaps, etc. Example 1
1 mm thick, 10 mm wide epoxy resin thermal expansion material 2 (trade name Fibrok, manufactured by Sekisui Chemical Co., Ltd.) coated with a covering member 3 made of an olefin elastomer (trade name Thermoran, manufactured by Mitsubishi Plastics) having a thickness of 1 mm. When the fireproof material consisting of was used, the test result was ○.

Example 2
A test using a fireproof material made of an epoxy resin thermal expansion material 2 (trade name Fibrok, manufactured by Sekisui Chemical Co., Ltd.) having a thickness of 1 mm and a width of 10 mm coated with a coating member 3 made of an aluminum foil having a thickness of 20 μm was conducted. The result was ○.

Comparative Example 1
When using a fireproof material made of an epoxy resin thermal expansion material 2 (trade name Fibrok, manufactured by Sekisui Chemical Co., Ltd.) having a thickness of 1 mm and a width of 10 mm coated with a coating member 3 made of an aluminum steel plate having a heat of 0.3 mm As a result, the flame was summoned in 15 minutes and burned through the gap between the scissors.

DESCRIPTION OF SYMBOLS 1 ... Fire prevention material, 2 ... Thermal expansion material, 3 ... Cover member, 13, 21, 22, 40 ... Attachment body.

Claims (7)

A fireproofing material comprising a thermal expansion material and a coating member that covers at least a part of the thermal expansion material and allows expansion of the thermal expansion material upon heating. The covering member is
The fireproofing material according to claim 1, comprising (i) a thermoplastic resin, elastomer, rubber, or a combination thereof, or (ii) a metal, a metal alloy, or a combination of a metal and the above (i). The fireproofing material according to claim 1 or 2, wherein the thermally expandable material includes a thermoplastic resin or a thermosetting resin, thermally expandable graphite, and an inorganic filler. The fireproof material as described in any one of Claims 1-3 which the said coating | coated member coat | covers the perimeter along the longitudinal direction of the said thermal expansion material. The fireproof material according to any one of claims 1 to 4, wherein the fireproof material has a similar color to an attached body to which the fireproof material is attached. The opening part apparatus which attached the fire prevention material as described in any one of Claims 1-5. The fireproof prevention structure of the building material by which the fireproof material as described in any one of Claims 1-4 is arrange | positioned in the clearance gap in an opening part apparatus, or the clearance gap between an opening part apparatus and a structural material.