JPH1096274A - Light-weight heat-insulating panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase rigidity and mechanical strength in spite of light weight and high heat insulation by using a core material having honeycomb structure partitioned into a plurality of spaces and made of a synthetic resin, corrugated structure or grid structure, etc., as a reinforcing core and filling the inside of the space of the core material with a foamed resin composition. SOLUTION: A core material 1 having honeycomb structure partitioned into a plurality of spaces and made of a synthetic resin, corrugated structure or grid structure, etc., is employed as a reinforcing core, and the spaces of the core material 1 are filled with a foamed resin composition 2. Honeycomb structure and corrugated structure are formed in such a manner that synthetic resin sheets in constant width are laminated while alternately forming bonding strips to form a hob and the hob is sliced. A large number of longitudinal and lateral main board materials are arrayed so that a sectional shape is formed in a quadrilateral in grid structure. A thermoplastic resin such as polystyrene, polyethylene, etc., and a thermosetting resin, etc., such as phenol, urea, epoxy, etc., are used as the quality of material of the synthetic resin sheet, and the same resin material as the filled foamed resin composition is employed more preferably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight, heat-insulating base and excellent rigidity used for walls, roofs, rooftops, balconies, floors, tatami mats, etc. of buildings such as general buildings and houses. The present invention relates to a lightweight heat insulating panel for use.

[0002]

2. Description of the Related Art Conventionally, a lightweight insulating panel for a base made of a synthetic resin is formed by extruding a synthetic resin foam molded product and then cutting the synthetic resin foam molded product to a predetermined shape or a bead-formed plate. there were.

However, in any of the methods, the light-weight heat insulating panel for the base made of a synthetic resin foam molded article is a synthetic resin foam molded article, so that it has low compressive strength and is easily chipped at the end. For this reason, in order to maintain the compressive strength of the synthetic resin foam molded article and the strength at which the ends are not chipped, the expansion ratio of the synthetic resin foam molded article must be considerably reduced, and the material cost is relatively high.

However, in practice, the expansion ratio cannot be reduced so much from the viewpoint of material cost, and generally the expansion ratio is about 30 to 50 times, so that chipping at the end cannot be completely prevented.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem. The present invention relates to a method in which a factory-produced synthetic resin honeycomb structure, corrugated structure or lattice structure has a core material. An object of the present invention is to provide a light-weight heat insulating panel for a base which is filled with a foamed resin composition and has high rigidity despite being highly foamed, lightweight and highly heat-insulating.

[0006]

Means for Solving the Problems As a result of diligent research for solving the problems, a lightweight heat insulating panel is prepared by filling a foamed resin composition into a space of a synthetic resin honeycomb structure, corrugated structure or lattice structure core material. Was solved by forming

[0007]

The present invention will be described below. A foamed resin composition is filled into the space of the honeycomb structure, corrugated structure, or lattice structure made of a synthetic resin, which is the core material of the panel, to reduce the weight to obtain a strong lightweight heat insulating panel.

[0008] The honeycomb structure, corrugated structure or lattice structure made of synthetic resin is a honeycomb structure, corrugated structure or lattice structure using a synthetic resin sheet as a material, and can absorb energy strong against compression. The honeycomb structure and the corrugated structure are formed by laminating a large number of sheets of a fixed width alternately with adhesive strips to form a hove, and slicing the hove. The lattice structure is a structure in which a large number of vertical and horizontal main plate members are arranged so as to have a square cross-sectional shape.

The material of the synthetic resin sheet used for the honeycomb structure, the corrugated structure, or the lattice structure is a thermoplastic resin such as polystyrene, polyethylene, polypropylene, vinyl chloride, and polyurethane, and a thermosetting resin such as phenol, urea, and epoxy. However, it is more preferable to use the same resin material as the foamed resin composition to be filled.

The thickness of the synthetic resin sheet used for the honeycomb structure, corrugated structure or lattice structure is 0.2 to 0.8.
mm. The expansion ratio of the foamed resin composition is 60.
Up to 100 times.

The foamed resin composition includes a resin material to which a foaming agent is added, or a resin material to which a foaming agent is added, to which an inorganic material and a reinforcing short fiber are added and filled. Any foaming method can be used for foaming the resin material, for example, a method of foaming by adding a foaming agent, a foaming agent is added to a liquid resin during the polymerization reaction, the foam is stirred and foamed, and the foam does not disappear. A method of solidifying the material, a method of generating a foamed resin by generating gas in the polymerization reaction process, a process of producing a molding material by polymerizing by including a low boiling point solvent such as propane and butane in the polymerization process, and heating the molding material A foam compression molding method can be used.

The resin material used for the foamed resin is a thermoplastic resin such as polystyrene, polyethylene, polypropylene, vinyl chloride, polyurethane, phenol, urea,
Thermosetting resins such as epoxy and hard polyurethane.

The foamed resin composition is usually sufficient only with a resin material to which a foaming agent is added, but when flame retardancy or high strength and rigidity are required, an inorganic material and reinforcing short fibers are added and filled. The inorganic material added and filled in the resin material to which the foaming agent has been added can improve the mechanical strength of the foamed resin and impart flame retardancy and self-extinguishing properties of the foamed resin. As the inorganic material, aluminum hydroxide, calcium carbonate, silicon oxide, calcium silicate, magnesium hydroxide, barium sulfate, gypsum, dolomite, talc, clay, mica, as a thermally decomposable inorganic material or an inorganic refractory material,
Powders such as antimony trioxide and borax can be used arbitrarily.

In order to strengthen the foamed resin composition, organic or inorganic short fibers are added. When organic short fibers are used, vinylon fibers, polypropylene fibers, polyethylene fibers, pulp fibers, etc., which are short fibers in the range of 1 to 20 mm, can be used. It is preferably used. When using inorganic short fibers, glass fibers of 5 mm or less,
Rock wool, wollastonite, sepiolite, carbon fiber and the like can be used.

When organic short fibers are used, the content is not more than 8 parts by weight of the total weight of the foamed resin composition constituting the lightweight heat insulating panel. Addition of more than this will impair moldability. Preferably it is 0.5 to 5 parts by weight. When the organic short fiber and the inorganic short fiber are used together, the organic short fiber is 0.5%.
To 3 parts by weight, and 0.5 to 8 parts by weight of inorganic short fibers. When only inorganic short fibers are used without using organic short fibers, the amount is 1 to 10 parts by weight.

When the lightweight heat insulating panel of the present invention is used as a base for a balcony of a house, the depth of the balcony of the house is 8 mm.
Generally, the depth is about 00 to 1000 mm, and when a drain groove is provided for about 150 mm, the depth feels very narrow. For this reason, the panels on both sides of the balcony are diagonally sloped, and the center panel is sloped in one direction or both sides from the center so that water flows to both corners of the balcony and drains from both corners, eliminating the need for drainage It can be.

The waterproof layer made of a waterproof coating material, which is made by sticking a non-combustible plate material on the surface of a lightweight heat insulating panel filled with a foamed resin composition in the space of the core material and applied thereon, is a waterproof layer using an asphalt-based material. And a waterproof layer using a sheet made of synthetic rubber or synthetic resin, or a waterproof layer in which a liquid material made of synthetic resin is applied or sprayed while a reinforcing cloth, a mesh, or the like is applied.

Lightweight insulation panels are used for roofing or balcony flooring. It is possible to easily form a drainage slope of a roofing material or a balcony flooring material by laying a light-weight heat insulating panel having a slanted slope. Moreover, since the panel itself has high heat insulation performance and high strength performance and rigidity, on-site construction can be easily performed.

Light-weight heat-insulating panels are attached to the waterproof construction surface of the building using mounting fasteners or adhesives, and the panels can be joined by inserting pins if necessary. The pins can be stopped because they are formed in a honeycomb structure, a corrugated structure, or a lattice structure.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the lightweight heat-insulating panel of the present invention is used for a base of a balcony of a house will be described below.

Example A polystyrene lattice structure having a cell size of 50 mm in length and width, a thickness of a core material of 30 mm, and a thickness of 0.4 mm was used as a core material of a lightweight heat insulating panel. The foamed resin composition is a molding material obtained by polymerizing polystyrene with a low boiling point solvent such as propane or butane, and has an expansion ratio of 80 times.

The foamed resin composition was filled in the space of a polystyrene lattice-structured core material, and heated to 100 ° C. to be integrally molded. The dimensions of the lightweight insulation panel are length 800 x width 1220m
In the three mABCs, A is a diagonal gradient from right to left, B is a bidirectional gradient from the center, and C is a diagonal gradient from left to right. The gradient applied to one side of the lattice structure is 1/100 in each case. The three lightweight insulation panels of ABC were used for flooring of a residential balcony. Stainless steel pins were used for joining between lightweight insulation panels. A pulp cement board was adhered to the surface of the lightweight heat-insulating panel as a non-combustible board material, and an acrylic emulsion-based coating waterproof coating material (Toyo Exterior Co., Ltd. “Reball Mighty”) was applied to the upper surface to form a waterproof layer.

The balcony of the house was 3660 mm wide and 800 mm long, and was glued to the base plywood with an adhesive in the order of ABC, and stainless steel pins were used for joining between the panels. A and B
The slope of the polystyrene lattice structure was adjusted so that the heights of the panel contacts and the B and C panel contacts were equal. In the case of this example, the drainage groove was unnecessary, and the drainage holes were installed at both corners of the balcony, so that the area of the balcony could be felt wide.

[0024]

The lightweight thermal insulation panel of the present invention is formed by using a synthetic resin honeycomb structure, corrugated structure or lattice structure core material as a reinforcing core, and filling this space with a foamed resin composition. When this lightweight heat-insulating panel is used as a base material for a building, a non-combustible plate material or the like can be adhered to the surface, and a finish coating material can be applied to the upper surface to perform construction.

Lightweight insulation panels are used for building roofing, rooftop,
The construction can be carried out easily and reliably simply by attaching to the waterproof construction surface of a building such as a balcony with a mounting bracket or an adhesive and using pins for joining between the panels, and is very suitable for repair work. Unlike the case of the above-mentioned residential balcony, a drain groove is not required, and the depth of the balcony can be made wide to be felt, so that the design is excellent. Furthermore, since the lightweight insulation panel has high rigidity and excellent performance in physical properties, it can be directly mounted on a joist. Even when used as a core material for tatami mats, sufficient rigidity can be obtained with half the weight of conventional ones.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a construction sectional view of an embodiment.

FIG. 3 is a floor plan of an example residential balcony.

[Explanation of symbols]

 1. Lattice structure 2. 2. foamed resin composition Pin 4. Lightweight thermal insulation panel 5. Incombustible plate material 6. 6. Waterproof coating material Plywood 8. Joist 9. 10. Outer wall 11. Handrail 12. Direction of gradient 13. Joint 14. Drain hole A. A panel B. B panel C. C panel

Claims (1)

[Claims] A core material having a honeycomb structure, a corrugated structure, a lattice structure or the like made of a synthetic resin partitioned into a plurality of spaces is used as a reinforcing core, and the space of the core material is filled with a foamed resin composition. And lightweight insulation panel.