JP2008025139A - Composite board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite board capable of enhancing fireproof performance, improving work efficiency, and reducing weight and manufacturing cost. <P>SOLUTION: This composite board 1 is formed by sticking interior and exterior materials 2 and a thermal insulating material 3 mutually by adhesive 4 that contains a powder and granular material 5 formed by an inorganic raw material. The powder and granular materials are melted and coalesced when heated to form a heat reflection layer. The inorganic raw material contains very fine aluminum or silver. The interior and exterior materials 2 contain magnesium oxide or calcium silicate. The thermal insulating material 3 contains an organic or inorganic foam or fibrous thermal insulating material. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a composite plate used for an outer wall or an inner wall of a building.

Conventionally, a member having a heat insulation performance is sometimes attached to an outer wall or an inner wall of a building in order to make the indoor environment comfortable and save energy. As a conventional member of this type, for example, a composite plate is known in which a heat insulating material is bonded to an interior / exterior material and formed integrally (see, for example, Patent Document 1).
JP-A-8-105186

  However, the above-described conventional composite plate is formed by bonding an organic or inorganic heat insulating material to an inner / outer material made of a magnesium oxide plate or a calcium silicate plate. It was not possible to have a high fire resistance that complies with the one hour fire resistance according to ISO 834). Therefore, there is a problem that the range of use of the composite plate is limited and the application cannot be expanded.

  On the other hand, composite plates in which cement mortar is applied to the heat insulating material or a metal plate or a metal film is applied to meet the one-hour fire resistance according to the ISO 834 have been proposed. Since the weight of the plate becomes heavy, there are problems such as poor workability, high manufacturing costs, and difficulty in integration with an adhesive. Therefore, practicality and functionality were low.

  The present invention has been made to solve the above-described problems, and provides a composite plate that can improve fire resistance, and can be lightweight, improve workability, and reduce manufacturing costs. It is intended.

  In order to achieve the above-described object, the composite board according to the present invention is formed by laminating an inner and outer material and a heat insulating material with an adhesive, and the adhesive includes a granular material made of an inorganic material, The granular material is characterized by melting and coalescing when heated to form a heat reflecting layer.

  The inorganic material preferably contains refined aluminum or silver.

  The inner and outer packaging materials may include magnesium oxide or calcium silicate, and the heat insulating material may include an organic or inorganic heat insulating material such as foam or fiber.

  According to the present invention, the adhesive contains powder particles made of an inorganic material, and when heated, the powder particles melt and coalesce to form a heat reflection layer. High fire resistance performance can be demonstrated. Moreover, it is lightweight, can improve workability, and can reduce manufacturing cost.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, FIG. 1 is a sectional view showing a composite plate according to an embodiment of the present invention, FIG. 2 is a sectional view showing an initial state when the composite plate is heated, and FIG. It is sectional drawing which shows a state when an adhesive agent reaches high temperature continuously.
It is. In the following description, a case where the composite material according to the present invention is applied to a wall material such as an outer wall or an inner wall of a building will be described as an example.

  As shown in FIG. 1, the composite plate 1 according to the present embodiment includes a heat insulating material 3 interposed between two plate-shaped inner and outer materials 2 and 2, and each inner and outer material 2, 2. 2 and the heat insulating material 3 are bonded together with an adhesive 4.

  As the inner / outer material 2, a plate material made only of magnesium oxide or calcium silicate, or a plate material containing magnesium oxide or calcium silicate can be used. Inside the inner / outer material 2, a reinforcing member such as a wire mesh is used. May be provided.

  As the heat insulating material 3, organic foamed heat insulating materials such as foamed polystyrene, foamed urethane, foamed polyethylene, and foamed isocyanate, or inorganic foamed heat insulating materials such as calcium carbonate plates, or organic materials such as cellulose fiber and fiberboard. Fiber-based heat insulating materials, or inorganic fiber-based heat insulating materials such as glass wool and rock wool can be used, and a reinforcing member such as a wire mesh may be provided inside the heat insulating material 3.

  Moreover, the adhesive 4 contains the granular material 5 which consists of inorganic type materials, such as aluminum or silver, and it is preferable that the inorganic type material is refined | miniaturized and mixed.

  In the composite material 1 having such a configuration, as shown in FIG. 2, when the inner / outer material 2 is heated from the outside by the burner 7 or the like, the heat is conducted through the inner / outer material 2 and the adhesive The heat insulating material 3 is melted by the conduction heat. In this case, the heat insulating material 3 is melted without being ignited and burned because the inside of the composite plate 1 is in an oxygen-free state.

  After the heat insulating material 3 is melted in this manner, the inner and outer packaging materials 2 are further heated, and when the temperature of the adhesive 4 reaches a high temperature (for example, around 600 ° C.), as shown in FIG. The particles 5 of inorganic material such as aluminum or silver inside 4 melt and fuse together to form a radiant heat reflecting layer 6 together with other components in the adhesive 4. And heat is interrupted | blocked by this reflective layer 6 of radiant heat, and the heat transfer to the inner-side exterior material 2 on the opposite side is suppressed. As a result, the composite plate 1 exhibits high fire resistance that is compatible with 1 hour fire resistance according to ISO834.

  Here, 1 hour fire resistance according to ISO834 means that when the heating temperature of one side surface of the specimen is increased from 345 ° C. every minute to 945 ° C. after 1 hour, the specimen is finally heated. It refers to the fire resistance that is certified when the average temperature at several points on the other side surface does not exceed 160 ° C and the maximum temperature on the other side surface does not exceed 200 ° C.

  As described above, according to the composite plate 1 according to the embodiment of the present invention, it is possible to exhibit high fire resistance performance that conforms to the one-hour fire resistance according to ISO834. it can. In addition, it is not necessary to apply cement mortar or a metal plate or metal film to the heat insulating material in order to adapt to fire resistance for 1 hour according to ISO834. Cost can be reduced. Furthermore, even if the composite plate 1 is heated, the adhesive performance of the adhesive 4 can be kept high, so that the inner and outer materials 2 do not peel off, and the practicality and functionality can be improved. it can.

  In the above-described embodiment, the composite plate 1 is configured such that the heat insulating material 3 is interposed between the two plate-like inner and outer materials 2, 2, but this is merely an example. The heat insulating material 3 may be bonded to the inner surface of a single inner / outer packaging material 2 with an adhesive 4.

  Moreover, although the case where the present invention is applied to a wall material such as an outer wall or an inner wall of a building has been described in the above embodiment, the present invention is not limited to this case, and the roof, floor, etc. of the building The present invention can also be applied to other various interior and exterior materials such as base materials, floor materials, and wall materials of structures other than buildings.

It is sectional drawing which shows the composite board which concerns on embodiment of this invention. It is sectional drawing which shows the initial state when the composite board which concerns on embodiment of this invention is heated. It is sectional drawing which shows a state when it continues heating the composite board which concerns on embodiment of this invention, and the adhesive agent reached high temperature.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Composite board 2 Interior / exterior material 3 Heat insulating material 4 Adhesive 5 Powder body 6 Reflective layer

Claims (4)

It is formed by adhering an inner and outer material and a heat insulating material with an adhesive, and the adhesive includes a granular material made of an inorganic material, and the granular material melts and coalesces when heated and is heated. A composite plate characterized by forming a reflective layer.   The composite board according to claim 1, wherein the inorganic material includes refined aluminum or silver.   The composite sheet according to claim 1, wherein the inner and outer packaging materials contain magnesium oxide or calcium silicate.   The composite board according to any one of claims 1 to 3, wherein the heat insulating material includes an organic or inorganic heat insulating material of foam type or fiber type.

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