JPS6030352Y2 - architectural composite board - Google Patents

Description

[Detailed description of the invention] The invention of the present application has a fireproof foam paint layer formed on the entire back surface, a surface material made of a metal plate formed in the shape of a gutter, a heat insulating material, and a spacer that functions as a bulkhead at high temperatures. This invention relates to a composite board for construction that is integrally formed with wood.

For example, the outer walls of buildings and structures are increasingly being formed by the so-called dry method using panels.

In particular, lightweight composite plates and sandwich structure plates made of metal plates and synthetic resin foams are on the rise.

However, when the metal surface of this type of panel is exposed to flames, etc., the metal plate expands due to high heat and is greatly distorted, causing the joints of these panels to come off and creating gaps, as well as weak points. The disadvantage was that flame and heat could penetrate inside.

In addition, the insulation material for this type of panel has been either a plastic foam or a fire retardant added to it, in order to reduce weight and have high thermal insulation properties.

As a result, the insulation material has the disadvantage of shrinking, melting, or burning under high heat.

In order to eliminate these drawbacks, the present invention creates a fire-retardant layer through a fire-retardant foam paint layer that forms a non-combustible heat-insulating layer under high heat between the surface material of the composite board, the core resin foam, and the spacing material. In addition to forming a thick heat insulating layer, we also prevent flame and heat from entering through the joints of the composite board from being directly conducted to the rim, etc.
It has a structure in which a spacing material made of noncombustible material is interposed on the back side of the joint, and other parts are made of lightweight, highly insulating resin foam to prevent flames and hot air from entering from the joint. The present invention proposes a composite board for construction that is lightweight and has excellent heat insulation properties.

An embodiment of the architectural composite board according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a vertical cross-sectional view showing an example of the above-mentioned composite board, and 1 is a surface made of a metal plate on the entire back surface of which is foamed under high heat and has a fireproof foam paint layer 1a forming a non-combustible heat insulating layer. A main body 2 made of wood with a concave cross section, an insertion edge 3 whose one edge protrudes outward, and the other edge bent inward, then outward, and then extended outward as it is. An insertion groove 4 with an inverted U-shaped cross section and an extension part 5 are formed, and a protrusion 6 formed in the middle of the extension part 5 and a tongue piece 7 with the tip of the extension part 5 bent outward. It is composed of

The composition of the fireproof foam paint layer 1a includes, for example: (1) ammonium phosphate, dipentaerythritol, melamine, chloroparaffin, titanium dioxide, polyvinyl acetate resin, water, (2) sodium silicate, activated carbon, silica powder, water,
It consists of several types such as CMC, titanium oxide, magnesia, phosphoric acid, alumina, zinc oxide, magnesium chloride, and water.

Further, the tongue piece 8 is formed by bending the tip of the insertion edge 3 outward, but this is formed as necessary.

To explain further, the main body 2 functions as a mold material when filling the synthetic resin foam, and the protrusion 6 functions to strengthen the engagement force at the joint, prevent capillary phenomenon, and function as a rain cover. The piece 7 functions as a rain cover and a backing function by coming into contact with a part of the back side of the heat insulating material described below.

Reference numeral 9 denotes a synthetic resin foam which is discharged as a raw material onto the main body 2 of the surface material 1 to form a T-shaped cross section and is fixed to the surface material 1 through self-adhesion.

To explain further, the synthetic resin foam 9 is mainly used to reduce the weight of the architectural composite board, and also uses the self-adhesive properties of the foam as it ages to attach the surface material 1, a spacing material to be described later, and a sheet-like material. It is useful for fixing together and providing high heat insulation properties and strength to the composite board for construction.

Specific examples include polyisocyanurate foam,
Phenol foam, etc., and of course urethane-modified polyisocyanurate foam, phenol-modified polyisocyanurate foam, or borate,
It is made of one type of foam, etc., in which one or more types of silicates, fibrous materials, inorganic porous particles, etc. are added and mixed.

The borates include borax and sodium metaborate, and the silicates include powdered water glass and sodium metasilicate.

In addition, the inorganic porous particles include one or more of pearlite particles, vermiculite shirasu balloons, and the like.

The above-mentioned additive is in the range of 50 to 3 parts by weight per 1 part by weight of the synthetic resin foam raw material, and is in accordance with JIS-A-13.
It is a synthetic resin foam with fireproof performance that can pass the No. 21 test.

Reference numeral 10 denotes a spacer which is adhered to a rectangular recess formed by one side of the bulging part 9a of the synthetic resin foam 9, the lower edge 4a of the insertion groove, and the extension part 5, and is attached to the back surface of the extension part 5 with rigidity. , fireproofing, and heat insulating properties.

In other words, it is easy to drive nails, the composite board for construction does not deform at the joint even under high heat, it prevents hot air and flame from entering through the joint α, and it also has low thermal conductivity. It is.

Its shape is rectangular in cross section, long, and has a thickness of t.
is the same as the bulging portion 9a of the synthetic resin foam 9, and the width W is a dimension that protrudes beyond the tongue piece 7 from the innermost part of the insertion groove 4.

As shown in Figure 2, there are three voids ■ and O at the joint α.
mouth.

This is to prevent the synthetic resin foam 9 and the surface material 1 from coming into direct contact with each other, thereby further enhancing fireproofing and heat insulation properties.

The material is phenolic resin foam.
, high-density glass wool, rock wool, calcium silicate board, gypsum board, flexible slate board, and semi-nonflammable foam whose main components are vinyl chloride and calcium carbonate.

Reference numeral 11 is a sheet-like material that covers the three exposed longitudinal sides of the back surface of the synthetic resin foam 9, and also adheres one end 11a to the back surface of the insertion edge 3 and the other end 11b to the back surface of the spacing material 10. The synthetic resin foam type 9 mold release material and sandwich structure are useful for strengthening the mechanical strength of composite boards for construction.

Specific examples of the sheet material 11 include kraft paper, asbestos paper, gypsum paper, glass fiber, etc., nonwoven fabrics such as synthetic resins, metal foils (AI, Pb), foam sheets (3 to 4 rML), It is made of a laminate of one or more types of asphalt felt, etc., or a sheet-like product made by sandwiching wire mesh with sheets from both sides to obtain shape retention at high temperatures, and forming a bottom shape.

Note that the sheet-like material 11 may be formed into a molded body or shaped into a bottom shape at the same time as the heat insulating material 9 is foamed in the mold when the heat insulating material 9 is injected.

Next, the mounting state of the architectural composite board according to the present invention will be explained.

In FIG. 2, A is a silver edge, B is a nail, and 1 and 2 are architectural composite boards according to the present invention, and the architectural composite board 1 is fixed to the silver edge A via nails B.

The insertion edges 3 of adjacent architectural composite boards 2 are inserted into the retaining grooves 4 of this architectural composite board 1 and connected.

To form the wall, these steps may be performed in sequence in the girder direction.

In this joint part, the sheet-like material 11 and the protrusion 6 are in linear contact to prevent the intrusion of rainwater etc. and the intrusion of flame,
Next, it is blocked by the tongue piece 7, the sheet-like material 11, the side wall of the spacing member 10, and the sheet-like material 11.

Here, to explain the fire resistance of the architectural composite board according to the present invention, the surface material 1 is a 0.27 m colored steel plate;
The fire-prevention foam paint layer 1a is formed by forming the composition 1 into a thickness of 30 microns (dry), and the heat insulating material 9 is formed by discharging liquid phenol foam with a thickness of 24 mm and a density of 40 to 9/-, and the interval is The holding material 10 is made of rock wool and has a thickness of 9wn, and the sheet material 11 is made of aluminum asbestos.
It was integrated into the contact area with an adhesive (phenol resin).

Therefore, a surface test according to JISA1321 was conducted on a so-called jointed test piece in which these architectural composite boards were connected.

As a comparative example, an architectural composite board having the same structure as the above example except that the surface material 1 was simply a colored steel plate was tested in the same manner as above.

The results were as shown in the table below. When the test piece after the combustion test was sectioned, it was found that in the example, the phenol foam was carbonized from the surface material 1 to a thickness of 10m+y+, and the layer deeper than this remained the normal foam, and the phenol foam was carbonized between the surface material 1 and the phenol foam. An inorganic heat insulating foam layer of 2 to 3 mm was formed on the surface.

On the other hand, in the comparative example, most of the phenol foam was carbonized.

As described above, according to the architectural composite board of the present invention, heat and flames that enter from the outside through the joints are absorbed by the three voids formed by the nonflammable surface material, the spacing material, and the sheet material. It has the characteristic of being able to suppress the conduction of heat to the inside.

In particular, the fireproof foam coating layer formed on the back side of the surface material forms a non-combustible heat insulating layer of about 2 to 51 frII4 under high heat, so it has the characteristic of significantly reducing smoke generation, afterflame, and carbonization of the heat insulating material.

Furthermore, since the surface material and the spacing material are nonflammable, it is possible to continuously form a layer that blocks heat and flames.

Furthermore, under normal conditions, synthetic resin has excellent foamability,
Furthermore, it is lightweight, extremely easy to manufacture, and has a sandwich-inch structure that provides strength even when using members such as metal plates and sheet-like materials.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a composite board for construction according to the present invention, and FIG. 2 is an explanatory diagram showing a connected state of the composite board. 1... Surface material, 4... Insertion groove, 9...
... Synthetic resin foam, 10 ... Spacing material, 11 ... Sheet-like material.

Claims (1)

[Scope of utility model registration request] One side edge of the main body, which has a concave cross section, protrudes outward to form an insertion edge, and the other side edge is bent inward, then bent outward, and then extended outward to form an insertion edge. In addition to providing an insertion groove with a U-shaped cross section and an extension part, and a tongue piece whose tip is bent outward, a fireproof foam paint layer is formed on the entire back side of the metal plate with a protrusion in the middle of the extension part. A surface material, a synthetic resin foam which is discharged as a raw material into the concave portion of the main body, reacted and foamed to fix the surface material together, and which has a T-shaped cross section, and one part of the threatening resin foam. It is fixed to the side surface by self-adhesive property when foam is formed, and also fixed to the lower edge of the insertion groove and the back surface of the extension part, and one side wall protrudes from the tongue of the extension part, and the back surface is attached to the back surface of the synthetic resin foam. The spacing material is non-combustible, rigid, and heat insulating and is planted flush with the spacing material, and a sheet-like material is fixed to the longitudinally exposed surface of the plastic foam and the back surface of the spacing material. Characteristic composite board for construction.