JPH06999B2 - Thermoplastic foam for heat insulation - Google Patents

Description

The present invention relates to a thermoplastic resin foam for heat insulation construction.

[Conventional technology]

Conventionally, thermoplastic synthetic resin foams such as polystyrene resin have been used for heat insulation construction of houses and buildings, and these are cut into rectangular shapes having a certain area such as 0.91 m in length and 0.91 m in width. Are used. A large number of these foams are attached by nails or the like one by one during heat insulation construction.

[Problems to be solved by the invention]

Since the thermoplastic resin foam used for conventional heat insulation construction is constructed by mounting a large number of foams one by one at the time of construction, there is a lot of time loss and it is unsatisfactory in terms of construction cost and workability. There were many parts.

Further, since the foams are attached one by one, a deviation occurs between the attached foams, and a problem that the heat insulating effect is lowered due to a gap between the foams due to these deviations occurs. In order to solve such a problem, for example, a filler is applied between the foams, but in this case as well, the construction cost increases and the workability deteriorates.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a thermoplastic resin foam for heat insulation construction, which is easy to construct and can prevent deterioration of the heat insulation effect as much as possible.

[Means for solving problems]

The present inventors, as a result of diligent research to solve the above problems,
The present invention has been completed by finding that a foam formed by alternately providing a plurality of hinges on the upper and lower surfaces of the foam and alternately folding the hinges at the hinges is suitable for heat insulation work.

That is, the present invention is characterized in that a flat plate-like thermoplastic resin foam having a plurality of hinge portions provided alternately on the upper and lower surfaces is alternately folded at each hinge portion, and the thermoplastic resin foam for heat insulation construction is characterized in that Is the gist.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The thermoplastic resin foam for heat insulating construction of the present invention (hereinafter, simply referred to as the foam of the present invention) has a flat thermoplastic resin foam (hereinafter, simply referred to as the flat foam) as a hinge portion as shown in FIG. It has a structure formed by folding.
In FIG. 1, 1 is the foam of the present invention, 2 is a flat foam,
3, 3 ... Represent hinge parts.

The flat-plate foam forming the foam of the present invention comprises a plurality of hinge portions alternately provided on the upper and lower surfaces thereof. For example, as shown in FIG. As shown in FIG. 2 (a), a W-shaped hinge portion 3a is formed along the direction perpendicular to the longitudinal direction of the flat foam body 2, and the lower surface 5 also has a hinge portion 3b of the same shape. They are formed in the same manner, and a plurality of these are alternately formed on the upper surface 4 and the lower surface 5 of the flat foam body 2.

In the present invention, the hinges formed on the upper and lower surfaces of the flat foam have a W-shaped cross section as shown in FIG. 2 (a), and are formed along the direction perpendicular to the longitudinal direction of the flat foam. The shape is not limited to the grooved shape described above, and various shapes are possible. For example, a cross section as shown in FIG. The mold, the cross section shown in Fig. 5 (a) Various shapes are possible, such as those in which the groove of the mold is provided along the direction perpendicular to the longitudinal direction of the flat foam, and the point is that the flat foam can be easily folded when folded at the hinge part. Also, any shape is possible as long as it does not cause damage such as cracks in the flat foam after folding.

Incidentally, the shape of the hinge portion of the flat foam body is shown in FIG.
In the case of the shapes shown in FIG. 4 (a) and FIG. 5 (a), the folded shapes are respectively FIG. 2 (b), FIG. 4 (b), and 5th.
The shape is as shown in FIG.

As a method for forming the hinge portion on the flat foam, it can be formed by cutting with a blade, heat melting, press forming using a pressing jig, or the like.

In the present invention, a thermoplastic resin is used as the resin forming the foam of the present invention, and examples thereof include polystyrene, poly-P-methylstyrene, high-impact polystyrene, styrene-maleic anhydride copolymer, and styrene-acrylonitrile copolymer. Polymers, styrene-butadiene-acrylonitrile copolymers, polystyrene-based resins having a base resin of a mixture of two or more thereof, polypropylene, polyethylene, polybutene, ethylene-propylene copolymers, ethylene-butene copolymers, ethylene -Polyvinyl resin such as vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-acrylic acid salt copolymer, hard and soft vinyl chloride resin, vinyl chloride-vinyl acetate copolymer, acrylic acid or methacrylic acid Or, those ester resins and the like can be mentioned. Most preferred in terms of polystyrene-based resin is a point and inexpensive heat insulating performance.

In the present invention, the size of the foam of the present invention can be selected from various sizes depending on the object to be heat-insulated.
If it is extremely large, it will be inconvenient to handle during construction, and if it is too small, it will not be possible to achieve the improvement of workability and prevention of deterioration of heat insulation, which are the objects of the present invention. or,
In the present invention, the foam is formed by folding the flat foam, so that the size of the flat foam can be defined by defining the size of the flat foam.
When the size of the foam of the present invention is defined by the size of the flat foam, the length in the longitudinal direction of the flat foam, the length in the width direction, the length between the hinge portions, and the thickness are defined. In the present invention, in consideration of the above reason, the size of the flat foam is 0.9 to 36 m in the longitudinal direction, 0.6 to 3 m in the width direction, and the length between the hinge portions. Is 0.3 to 1.8 m and the thickness is 0.1 to 5 cm.

If the thickness of the flat foam is less than 0.1 cm, the heat insulating effect is poor, and if it exceeds 5 cm, folding of the flat foam may be hindered.

The expansion ratio of the foam used in the present invention is usually 5 to 80 times, preferably 10 to 70 times.

Further, in the present invention, a film-like material may be applied to one side or both sides of the flat foam for reinforcing the foam.

The film-like material, polystyrene, polypropylene, various polyethylene, polyester, polyamide,
Plastic films made of vinyl chloride, etc., and films obtained by subjecting these to metal vapor deposition, or non-woven fabrics, woven fabrics,
Examples include paper.

In forming the foam of the present invention configured as described above, various methods are possible, for example, a foam extruded from an extruder is laminated with a film if necessary, and then, A hinge portion can be formed by hot pressing at a desired portion of the foam, and then cut into a predetermined length to form a flat foam. The obtained flat foam can be folded at each hinge portion provided on the flat foam to obtain the foam of the present invention.

As a specific example of folding the flat foam to form the foam of the present invention, for example, referring to FIG.
The end portion is folded at the hinge portion 3a in the direction of arrow A, then at the hinge portion 3b in the direction of arrow B, and then alternately folded to obtain the foam 1 of the present invention as shown in FIG. You can

In using the foam of the present invention configured as described above, for example, as shown in FIG. 6, after fixing the end portion of the foam 1 of the present invention to a required portion of the heat insulating construction target portion of the house 6,
Heat insulation can be easily performed by sequentially extending and fixing the hinge portion 3. It is also possible to fix the end portion of the foamed product of the present invention that has been elongated at the upper part of the heat insulation target site, and then sequentially fix the foamed product downward.

When heat insulation construction is performed using the foam of the present invention, the foam of the present invention has a small number of times of alignment because the size of one foam is large, and the number of seams between the foams is extremely small. As a result, it is possible to prevent the occurrence of a gap between the heat insulating plates and reduce the heat insulating effect as much as possible. or,
For example, even if a gap is formed, the amount of seam is small, so that the filler can be applied to the gap in a short time.

Further, in the construction of a wooden house or the like, if the distance between the hinge portions is set to be the same as the distance between the pillars, it can be fixed at each hinge portion, and the fixing point can be easily selected.

〔The invention's effect〕

As described above, the foam of the present invention is a plate-shaped thermoplastic resin foam formed by alternately providing a plurality of hinge portions on the upper and lower surfaces, and is alternately folded at each hinge portion. At the same time, it has various effects such as easy installation, and the number of seams between foams is extremely small compared to the conventional one, and as a result, problems such as deterioration of the heat insulation effect due to displacement of seams can be prevented as much as possible. It is a thing.

[Brief description of drawings]

The drawings show the embodiments of the present invention. FIG. 1 is a perspective view showing an embodiment of the foam of the present invention, and FIGS. 2, 4, and 5 show the hinge portion shape of a flat foam. FIG. 3 is a longitudinal sectional view showing the same, FIG. 3 is a perspective view of an essential part showing a flat foam, and FIG. 6 is a schematic perspective view showing a state where construction is performed using the foam of the present invention. 1 ... Thermoplastic resin foam for heat insulation construction 2 ... Flat thermoplastic resin foam 3 ... Hinge part

Claims (1)

[Claims] 1. A thermoplastic resin foam for heat insulating work, characterized in that a flat plate-shaped thermoplastic resin foam having a plurality of hinges provided alternately on the upper and lower surfaces is alternately folded at each hinge.