JP3043391U - Composite panel - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a composite panel that is resistant to decay and insect damage, is lightweight, has a pure surface, and is beautiful. [Structure] The entire surface of a synthetic resin foam plate is coated with a phenol resin, and a frame made of a wooden square is formed on the periphery of the plate to form a core, and a wooden flat plate is adhered to the front and back surfaces of the core.
In the case of a composite panel having a large size, a synthetic resin foam plate is divided by a thin plate made of wood, plastic, or the like or a partition wall made of paper.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention is a composite panel that is made of synthetic resin foam board material that is lightweight and has excellent heat insulation properties, and the front and back surfaces and edges of the board are made of wood.

[0002]

[Prior art]

 Wood has long been used as a building material in various parts. Although it is easy to process and light in weight, it has relatively high strength, and the unique texture of natural wood has been particularly important in Japan. Although it is a promising material that will not be depleted in terms of resources, it also has the drawbacks that the thickness of thick wood will change its dimensions and that good quality wood will be difficult to obtain.

[0003] Wood has many advantages, but on the other hand, it has the above-mentioned drawbacks. Therefore, it is necessary to select a material according to the site of the building to be used and the application. Although wood decay and insect damage can be prevented to some extent by adequately preserving it in advance, it is not sufficient. When wood dries, it shrinks and becomes distorted, which can be overcome to some extent by using well-dried wood. Good quality wood has a solid surface and is thick, but especially thick wood is difficult to obtain and is expensive.

[0004]

[Problems to be solved by the device]

 The present invention easily solves the above-mentioned drawbacks of wood, such as weakness against decay and insect damage, while taking advantage of the strength of wood, has a beautiful surface with a solid surface, and is a lightweight composite panel suitable for exterior products. It is intended to provide.

[0005]

[Means for Solving the Problems]

 In the present invention, a phenolic resin is applied to the entire surface of the synthetic resin foam board to cover the board, and a frame made of a wooden square is formed around the periphery of the board to form a core material. A wooden flat plate is attached to the front and back surfaces of this core material with the wooden mouth turned upside down to form a composite panel.

The synthetic resin foam plate material may be one, but depending on the size and size of the composite panel, two or more synthetic resin foam plate materials are divided by partition walls such as plastic thin plates, wooden thin plates, and paper.

[0007]

[Action]

 The types of resin used for the synthetic resin foam board material of the present invention include thermoplastic resins such as polystyrene, polypropylene, polyethylene, vinyl chloride, and polyurethane, and thermosetting resins such as urea, epoxy, hard polyurethane, and phenol. However, polystyrene is the most suitable thermoplastic resin. It is also possible to use a crushed product of waste plastic foam material as part of the synthetic resin foam plate material.

[0008] The reason why the phenol resin is applied to the entire surface of the synthetic resin foam plate is to improve the durability, chemical resistance, fire resistance and waterproofness of the core material. The phenolic resin applied here is a resol-type phenolic resin obtained by the addition condensation reaction of phenols and aldehydes.

[0009] The resole type phenolic resin is obtained by converting phenols such as phenol, cresol, xylenol, paraalkylphenol, paraphenylphenol, resorcin and modified products thereof and aldehydes such as formaldehyde, paraformaldehyde, furfural and acetaldehyde with sodium hydroxide, It is a resol type produced by reaction with an alkaline catalyst such as potassium hydroxide, calcium hydroxide, hexamethylenetetramine, trimethylamine, triethylamine and the like.

A phenol resin to which a curing agent or the like is added may be directly applied or immersed in the phenol resin, and the phenol resin may be used as an alcohol-soluble or water-soluble adhesive. The alcohol-soluble phenol resin adhesive uses a resol type phenol resin as an alcohol solution. The water-soluble phenolic resin adhesive is produced by reacting sodium hydroxide as a catalyst and concentrating under reduced pressure.

The reason why the synthetic resin foam plate is partitioned by a plastic thin plate, a wooden thin plate, paper or the like is to increase the surface pressure strength of the synthetic resin foam plate. If the dimensions of the composite panel are small, it is not necessary to put a partition wall in the synthetic resin foam plate, but if the composite panel is large, dents or distortions etc. will occur in the synthetic resin foam plate due to the load on the wooden flat plate attached to the surface. May occur. The simplest method of reinforcing the surface pressure applied to the synthetic resin foam plate is to provide a partition wall in the synthetic resin foam plate. The effect can be maximized by subdividing the pressure receiving area.

The partition wall to be installed on the synthetic resin foam board is made of a thin plastic sheet, a thin wooden board, paper, or the like, and the thickness thereof is in the range of 0.3 to 1.5 mm. When the thickness is 0.3 mm or less, the reinforcing effect is not sufficiently exhibited, and when the thickness is 1.5 mm or more, there is no difference in the effect of the strength.

The wooden frame material installed around the synthetic resin foam plate material has a width of 20 to 100 mm and a thickness of 20 to 100 mm, and the synthetic resin foam plate material is put in the wooden frame material. The wood frame material is not particularly limited.

[0014] The corners of the wooden frame material are set to include a splice, a splice splice, a snap-wrap splice, a one-sided insert splice, and a splice splice.

The wooden flat plates attached to the front and back surfaces may be a single plate made of plywood or the like, but it is preferable that the flat plates are spliced together. There is no particular limitation on the type of flat plate, but the flat plate on the surface should be solid and free from roots (roots), fleshed skin, round meat, raw, dead, missing, combed and cracked knives. use. The flat plate used on the back side may have some of the above-mentioned disadvantages. The thickness of the flat plate is 5 to 20 mm and the width is 3 times or more the thickness.

[0016] For flat plates to be attached to the front and back sides with the mouths turned upside down, the mouths should be aligned and the methods of joining the boards should be butt joints, phase joints, wing joints, hire joints, and book joints. It The flat plate is attached to the wooden frame material with an adhesive or nailing. The front and back edges are reversed to prevent the composite panel from being distorted or distorted.

The front and back materials are made slightly larger than the size of the wooden frame material in which the synthetic resin foam plate material is put, so that the end portions of the composite panel are concave. This is because it can be used as a piecing joint when joining composite panels. The concave depression should be 10 to 30 mm.

[0018]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail.

Example A polystyrene foam plate material having an expansion ratio of 80 times was dipped in a water-soluble phenol resin adhesive to coat 6 surfaces of the polystyrene foam plate material with a phenol resin. The polystyrene foam plate material had a thickness of 50 mm, a width of 430 mm, and a length of 860 mm, and two sheets were prepared.

As the wooden frame material surrounding the periphery of this polystyrene foam plate material, a wooden square material having a width of 50 mm and a height of 50 mm was used, and the square of the frame material was a piecing joint. The inside dimensions of the wooden frame are 860 mm both vertically and horizontally, and the outside dimensions are 960 mm.

Two polystyrene foam plate materials were put inside the wooden frame material, and a 0.8 mm-thick wooden thin plate was inserted between the polystyrene foam plate materials to manufacture a core material of a composite panel.

A cypress board having a thickness of 8 mm, a width of 100 mm, a length of 1000 mm and a solid surface was applied to the surface of the core material, and a cedar board having the same size was attached to the back surface with nails. The front and back plates were butt-jointed, and the edges of the front and back materials were aligned 90 degrees in reverse. The end of the composite panel was concave with a 20 mm dent inside.

[0023]

[Effect of the invention]

 As described above, according to the present invention, the synthetic resin foam plate material is coated with the phenol resin to improve the durability, chemical resistance, fire resistance and waterproof property of the synthetic resin foam plate material of the core material. By enclosing it with wood and using a solid wooden plate for the surface material, we were able to obtain a lightweight composite panel with a beautiful surface.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a composite panel.

FIG. 2 is an exploded view of a composite panel.

[Explanation of symbols]

 1. 1. Surface material Core material 3. Back material 4. 4. Phenolic resin adhesive 5. Polystyrene foam board Wooden frame material 7. Nail 8. Wooden thin plate 9. Phenolic resin-coated polystyrene foam board

Claims (2)

[Utility model registration claims] 1. A frame made of a wooden square material is formed around the periphery of a synthetic resin foam plate material coated and coated with a phenol resin on the entire surface to form a core material. A composite panel characterized by: 2. The composite panel according to claim 1, wherein the synthetic resin foam plate material has a structure divided by partition walls such as a plastic thin plate, a wooden thin plate, and paper.