JP3161780U - Extruded product - Google Patents

Abstract

The present invention provides an extrusion-molded product that can keep the molding cost low. An extrusion molded article 1 formed by multilayer extrusion molding using at least two types of molding materials, a base material 2 made of a thermoplastic resin material, and embedded in the base material 2. And a core material 3 made of a fiber reinforced resin material. The fiber reinforced resin material is obtained by blending a carbon fiber material and a thermoplastic resin material at a predetermined blending ratio. [Selection] Figure 1

Description

  The present invention relates to an extrusion-molded product, and more particularly to an extrusion-molded product molded by multilayer extrusion molding (coextrusion molding).

  An example of an extruded product that is extruded by multilayer extrusion (coextrusion) is described in Patent Document 1. This extruded product is obtained by simultaneously molding an inner layer and an outer layer made of an extrudable thermoplastic resin material by multilayer extrusion molding, and a synthetic resin material that can be colored or decorated is used for the inner layer. A semitransparent or transparent synthetic resin material is used for the outer layer, and a reinforcing material such as glass fiber, a flame retardant, a heat stabilizer, various additives, wood flour, etc. are blended at a predetermined blending ratio in the inner layer. Has been.

  The extrusion-molded article described in Patent Document 1 is used as an interior / exterior material for a house or the like, and may be provided with a wood pattern, a stone pattern, or the like on the interior / exterior material for a house or the like by a colored or decorated resin material. It is possible to improve the design of the interior and exterior of a house or the like.

  By the way, in the extrusion molded product of the above configuration, because it is a laminated structure made only of resin material, when used as a deck material such as a seat plate material of a bench such as a park or a veranda or terrace of a house, Since bending strength is insufficient and bending becomes large, it is necessary to reinforce by some method.

  Patent Document 2 describes another example of an extruded product. This extruded product is obtained by simultaneously molding an inner layer and a surface layer of an extrudable thermoplastic resin material on the surface of a core material made of an aluminum material by multilayer extrusion molding. In this surface layer, wood flour or the like is blended at a predetermined blending ratio.

  Since the extruded product described in Patent Document 2 uses an aluminum material as a core material, the bending strength is not insufficient and the bending can be suppressed to a low level as in the extruded product described in Patent Document 1. Therefore, it can be used as a seating material for benches in parks, etc., and as a deck material for verandas and terraces in houses, etc.

  However, since the extruded product described in Patent Document 2 is a laminated structure of different materials of a metal core and a synthetic resin coating layer, the structure of a molding line, a mold, and the like becomes complicated. The equipment costs are high, and the work such as attaching and detaching the mold takes time, and the molding cost is high.

JP 2006-103313 A Japanese Patent Laid-Open No. 2006-45938

  This invention is made | formed in view of the above conventional problems, Comprising: It aims at providing the extrusion molded product which can hold down molding cost cheaply.

In order to solve the above-described problems, the present invention employs the following means.
That is, the present invention is an extrusion-molded product molded by multilayer extrusion using at least two types of molding materials, a base material made of a thermoplastic resin material, and a fiber embedded in the base material And a core material made of a reinforced resin material.

According to the extruded product of the present invention, since it has a multilayer structure of a base material and a core material made of a fiber reinforced resin material embedded in the base material, it can be bent without adding reinforcement by a metal material or the like. Strength can be increased and bending can be suppressed small. Therefore, it can be effectively used as a deck material for a park bench seat, a house veranda, a terrace or the like.
Moreover, since the base material is formed from a thermoplastic resin material and the core material is formed from a fiber reinforced resin material, the multilayer extrusion molding line and the mold structure can be simplified. Accordingly, the equipment cost can be reduced, the labor required for molding can be reduced, and the molding cost can be reduced.

  In the present invention, the thermoplastic resin material is styrene-based, polycarbonate-based, polyolefin-based, or an alloy resin material thereof.

  Furthermore, in the present invention, the fiber reinforced resin material may be a carbon fiber material and a thermoplastic resin material blended at a predetermined blending ratio.

  According to the extruded product of the present invention, the core material is a fiber reinforced resin material in which a carbon fiber material and a thermoplastic resin material are blended at a predetermined blending ratio. The bending strength can be increased, and the bending can be reduced.

  Furthermore, in this invention, it is good also as the compounding ratio of the said carbon fiber material and a thermoplastic resin material being 10-40 weight% of carbon fiber materials, and a thermoplastic resin material: 90-60 weight%.

  Furthermore, in the present invention, the thermoplastic resin material may be a styrene-based, polycarbonate-based, or alloy resin material thereof.

  Furthermore, in the present invention, the thermoplastic resin material may be an ABS resin material.

  Furthermore, in the present invention, a surface material made of a thermoplastic resin material may be laminated on at least one layer on the surface of the base material.

  According to the extruded product of the present invention, the surface of the substrate can be coated by laminating at least one surface material made of a thermoplastic resin material on the surface of the substrate. Weather resistance, impact resistance, etc. can be improved.

  Furthermore, in the present invention, the thermoplastic resin material may be styrene, polycarbonate, polyolefin, or an alloy resin material thereof.

  Furthermore, in this invention, it is good also as a foaming agent being mix | blended by the predetermined | prescribed compounding ratio with the thermoplastic resin material of the said base material and the said surface material.

  According to the extruded product of the present invention, by adjusting the blending ratio of the foaming agent to the base material and the surface material, the overall weight of the extruded product can be reduced while maintaining the bending strength of the extruded product at a predetermined value. Can be planned.

  Furthermore, in this invention, the said base material is shape | molded by plate shape or rod shape, and the said core material is shape | molded by the plate shape or rod shape of the length covering the full length of the said base material, At least 1 inside the said base material. Two core members may be embedded.

  According to the extruded product of the present invention, it can be effectively used as a deck material for a park bench or a house veranda.

  Furthermore, in the present invention, the core material may be formed into a cross-section I shape, a cross-section H shape, or a cross-section T shape.

  According to the extruded product of the present invention, the bending strength of the extruded product can be set to a predetermined value by setting the core material to have a cross-sectional I shape, a cross-sectional H shape, and a cross-sectional T shape. Can be kept small.

  As explained above, according to the extrusion molded product of the present invention, since it has a multi-layer structure of a base material made of a thermoplastic resin material and a core material made of a fiber reinforced resin material embedded in the base material. The bending strength can be increased without adding reinforcement with a metal plate or the like, and the bending can be kept small. Therefore, it can be effectively used as a deck material for a park bench seat, a house veranda, a terrace or the like. In addition, since the base material is formed from a thermoplastic resin material and the core material is formed from a fiber reinforced resin material, the structure of a multilayer extrusion molding line, a mold, and the like can be simplified. Therefore, the equipment cost can be reduced, the labor required for attaching and detaching the mold can be reduced, the molding cost can be kept low, and an inexpensive extruded product can be provided.

It is the top view which showed one Embodiment of the extrusion molded product by this invention. It is a front view of FIG. FIG. 2 is an enlarged side view of FIG. 1. It is an enlarged side view of other embodiment of an extrusion molded product. It is an enlarged side view of other embodiment of an extrusion molded product.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show an embodiment of an extruded product according to the present invention. The extruded product 1 of the present embodiment is formed by multilayer extrusion molding (coextrusion molding), and is effective as a deck material for park benches, house verandas, terraces, etc. It is.

  That is, the extrusion molded product 1 of the present embodiment uses a thermoplastic resin material and a fiber reinforced resin material as molding materials, melt-plasticized the molding materials with individual molding machines, and melt-plasticized from each molding machine. It consists of a base material 2 made of a thermoplastic resin material and a fiber reinforced resin material embedded in the base material 2 by feeding the molding material into one common mold and simultaneously molding it under predetermined molding conditions. This is formed into an extruded product 1 having a multilayer structure composed of a core material 3 and a surface material 4 made of a thermoplastic resin material provided on the surface of the substrate 2.

  In this embodiment, in order to use it as a deck material for a park bench, a house veranda, a terrace or the like, the extruded product 1 has a length L: 1500 mm, a width W: 140 mm, and a height ( Thickness) H: It is formed in a rectangular plate shape of 40 mm, and the thickness of the surface material 4 is 0.5 mm.

  Moreover, the length over the full length of the base material 2, and the height lower than the base material 2, at a plurality of locations (three locations in the present embodiment) at predetermined intervals along the width direction of the base material 2, and The core material 3 having an I-shaped cross-section whose upper and lower ends are wider than the central portion is embedded.

  The core material 3 may have a cross-sectional H shape as shown in FIG. 4 or a cross-sectional T shape as shown in FIG. 5. Although not shown, the core material has another cross-sectional shape. May be used. In addition, what is necessary is just to provide the surface material 4 as needed.

  The thermoplastic resin material constituting the base material 2 is a resin material such as styrene-based, polycarbonate-based, polyolefin-based, or alloy resin material that can be extruded, such as polystyrene, polypropylene, polyethylene terephthalate, high Density polyethylene, low density polyethylene, vinyl chloride resin, and the like can be used. In the present embodiment, a recycled resin material (polystyrene resin material) is used as the thermoplastic resin material.

  In addition, a volatile foaming agent such as carbon dioxide or a decomposable foaming agent such as sodium bicarbonate is added to the thermoplastic resin material in advance, and the thermoplastic resin is molded in the molding line or in the mold during extrusion molding. The foaming agent added to the resin material may be foamed to form a cavity in the base material 2 after molding, thereby reducing the weight of the base material 2.

  Furthermore, a predetermined amount of wood powder such as cedar, cypress, pine or the like is added to the thermoplastic resin material in advance, or a colorant such as an inorganic pigment or an organic pigment is added, and the grain of the thermoplastic resin material. You may comprise so that a pattern and a stone pattern may be given or colored.

  The thermoplastic resin material constituting the surface material 4 has the same configuration as that of the thermoplastic resin material constituting the base material 2, and one or more layers (in this embodiment, one layer on the surface of the base material 2). ) And the surface of the base material 2 is covered with the surface material 4 to improve the weather resistance, impact resistance, and the like of the base material 2. In the present embodiment, no foaming agent is added to the thermoplastic resin material constituting the surface material 4, but a predetermined amount of foaming agent may be added as necessary.

The fiber reinforced resin material constituting the core material 3 is a mixture of a thermoplastic resin material capable of extrusion molding and a fiber reinforced material in a predetermined blending ratio. As the thermoplastic resin material, styrene-based, polycarbonate A system, polyolefin, or an alloy resin material thereof can be used.
In the present embodiment, an ABS resin material is used as the thermoplastic resin material, and a carbon fiber material is used as the fiber reinforcing material. As the carbon fiber material, various materials such as a short carbon fiber material and a long carbon fiber material can be used.

In the present embodiment, the blending ratio of the ABS resin material and the carbon fiber material is set to ABS resin material: 90 to 60% by weight and carbon fiber material 10 to 40% by weight.
In addition, you may comprise a fiber reinforced resin material not only with the combination of an ABS resin material and a carbon fiber material but with the combination of another thermoplastic resin material and fiber reinforcements (glass fiber, an aramid fiber, etc.).

  And, for example, in order to build a bench in a park or the like using the extrusion-molded product 1 of the present embodiment configured as described above, a support base made of metal, concrete or the like is preliminarily installed in a park or the like. By installing a plurality of extruded products 1 as seat plates on the upper part of the support base, and fixing both ends in the longitudinal direction of each extruded product 1 to the support base with bolts, etc. A bench using the extruded product 1 according to the embodiment as a seat plate can be constructed.

  In the extrusion molded article 1 according to the present embodiment configured as described above, a base material 2 made of a thermoplastic resin material, a core material 3 made of a fiber reinforced resin material, and a surface material made of a thermoplastic resin material. 4 are simultaneously molded by multilayer extrusion molding, and the bending strength is increased by the core material 3 made of a fiber reinforced resin material, so that bending is suppressed to a small level. It can be used as a seat material for benches and as a deck material for verandas in houses.

  Therefore, the structure of the molding line and the mold is not complicated like the extrusion line of the different material of the metal plate and the resin material, and the structure of the molding line and the mold is simplified. Thus, the facility cost can be reduced, the work such as attaching and detaching the mold can be facilitated, the molding cost can be reduced, and an inexpensive extruded product can be provided.

  Since the base material 2 and the surface material 4 of the extruded product 1 are molded with a recycled resin material (polystyrene resin material), for example, a recycled resin material obtained by recycling waste plastic is used as a molding material for the base material 2 and the surface material 4. Energy saving can be achieved.

  In the present embodiment, the core material 3 having a length over the entire length is embedded in the base material 2 of the extrusion-molded product 1, but the core material 3 having a shorter length than the base material 2 is used as the base material. You may make it embed | buried in one place of 2 longitudinal directions, or several places. Moreover, in this Embodiment, although the extrusion molded product 1 was made into the rectangular plate shape, you may shape | mold the extrusion molded product 1 in other shapes, such as square bar shape, round bar shape, and pipe shape, Even in the case, the same effects can be obtained.

Table 1 shows the results of the structural analysis of the extruded product 1 according to this embodiment and the conventional extruded product.
Model 1 and model 2 are the extrusion-molded product 1 of the present embodiment, and model 3 is a conventional extrusion-molded product. The model 1 includes a base material 2 made of a polystyrene resin material, a core material 3 having an I-shaped cross section embedded in the base material 2, and a surface material 4 made of a polystyrene resin material laminated on the surface of the base material 2. This is an extruded product 1 composed of The model 2 includes a base material 2 made of a polystyrene resin material, a core material 3 having an H-shaped cross section embedded in the base material 2, and a surface material 4 made of a polystyrene resin material laminated on the surface of the base material 2. This is an extruded product 1 composed of Model 3 is an extrusion-molded product composed of a base material made of a polystyrene resin material and a surface material made of a polystyrene resin material laminated on the surface of the base material. In each of the models 1 to 3, the length L was 1500 mm, the width W was 140 mm, and the height H was 40 mm.

  Using the above models 1 to 3, both ends of each model 1 to 3 are supported, and a surface load corresponding to 980 N (100 Kgf) is loaded as an evenly distributed load on the top surface of each model 1 to 3. A deflection of ~ 3 was determined.

  As a result of this analysis, the deflection of model 1 is 10.7 mm, the deflection of model 2 is 8.7 mm, the deflection of model 3 is 15 mm, the deflection of model 1 is reduced by about 31% of model 3, and the deflection of model 2 is It is about 44% less than that of the model 3, and it can be clearly seen that the extruded product 1 of the present embodiment has improved bending characteristics compared to the conventional extruded product.

DESCRIPTION OF SYMBOLS 1 Extrusion product 2 Base material 3 Core material 4 Surface material

Claims (11)

An extrusion molded product formed by multilayer extrusion using at least two types of molding materials,
An extruded product comprising a base material made of a thermoplastic resin material and a core material made of a fiber-reinforced resin material embedded in the base material.   The extruded product according to claim 1, wherein the thermoplastic resin material is styrene, polycarbonate, polyolefin, or an alloy resin material thereof.   2. The extruded product according to claim 1, wherein the fiber-reinforced resin material is a carbon fiber material and a thermoplastic resin material blended at a predetermined blending ratio.   The extrusion ratio according to claim 3, wherein the blending ratio of the carbon fiber material and the thermoplastic resin material is set to carbon fiber material: 10 to 40% by weight, and thermoplastic resin material: 90 to 60% by weight. Molding.   The extruded product according to claim 3 or 4, wherein the thermoplastic resin material is styrene, polycarbonate, or an alloy resin material thereof.   The extruded product according to any one of claims 3 to 5, wherein the thermoplastic resin material is an ABS resin material.   The extruded product according to any one of claims 1 to 6, wherein a surface material made of a thermoplastic resin material is laminated on at least one layer on the surface of the base material.   The extruded product according to claim 7, wherein the thermoplastic resin material is styrene, polycarbonate, polyolefin, or an alloy resin material thereof.   The extruded product according to any one of claims 1 to 8, wherein a foaming agent is blended in a predetermined blending ratio in the base material and the thermoplastic resin material of the surface material.   The base material is formed into a plate shape or a rod shape, and the core material is formed into a plate shape or a rod shape having a length over the entire length of the base material, and at least one core material is embedded in the base material. The extruded product according to any one of claims 1 to 9, wherein the extruded product is a molded product.   The extruded product according to claim 10, wherein the core material is formed into a cross-section I shape, a cross-section H shape, or a cross-section T shape.

Images