KR101810768B1 - Method of producing reinforced eps heat insulator, and reinforced eps heat insulator and reinforcement-attached heat insulator panel using thereof - Google Patents

Abstract

The present invention relates to a method of manufacturing a reinforced EPS insulating material used for a heat insulating panel with a reinforcing material having structural strength capable of enduring natural disasters such as earthquakes. First, uneven raw material beads having a particle size distribution of 0.71 to 2.83 mm are prefoamed to form prefoamed particles. Next, the pre-expanded beads are charged into the mold of the block-forming machine (S1), and the pressure of the water vapor (0.3 to 0.35 kgf / cm < ² > ) To prepare a reinforced EPS block having a high fusion ratio (S3 to S5). The manufactured reinforced EPS block is cut into a reinforced EPS thermal insulation material having a predetermined thickness (S7).

Description

TECHNICAL FIELD [0001] The present invention relates to a method of manufacturing reinforced EPS insulating material, a reinforced EPS insulating material, and a heat insulating panel using a reinforcing material using the same. BACKGROUND ART [0002]

The present invention relates to a method for manufacturing Expanded Poly-Styrene (hereinafter referred to as EPS insulation) reinforced with a material strength and bonding strength (hereinafter referred to as structural strength), that is, reinforced EPS insulation, And a heat insulating panel having a reinforcing member using the same.

Japanese Patent Laid-Open Publication No. JP05-171723A discloses a heat insulating panel which can be used for two purposes such as a concrete form and an interior finishing material. In this heat insulating panel, a foamed plastic insulating board (foamed polystyrene, foamed polyethylene, foamed polyurethane, A vertical groove having a concave section at predetermined intervals is formed on the surface of the foamed plastic board of the foamed plastic board and a high strength stiffener in the form of a rectangular rod is inserted into the groove. Foam plastic insulation boards and stiffeners are bonded using adhesives that do not damage the insulation. By means of the integrally formed foamed plastic insulation board, the insulation panel has high rigidity so that the insulation panel can be used as a form board in the concrete pouring, while the reinforcement can replace the batten. In addition, in this thermal insulation panel, the stiffener can be used as a finishing material by fixing the embedded board to the stiffener.

In the heat insulating material described in the above publication, the built-in board can be fixed to the reinforcing material, and the useful life of the heat insulating panel after the completion of the construction of the building is basically very long. However, . Therefore, even when the embedded board is fixed to the reinforcing member, the above-described heat insulating panel is required to have a structural strength sufficient to withstand a disaster caused by an earthquake or the like. However, the above disclosure does not describe the structural strength of the insulating panel.

An object of the present invention is to provide a method of manufacturing a reinforced EPS insulating material used for an insulating panel having a structural strength enough to withstand natural disasters such as earthquakes, and a reinforced EPS insulating material and a heat insulating panel using the reinforcing material.

In order to solve the above-mentioned problems, a method for manufacturing a reinforced EPS thermal insulator according to the present invention comprises: prefoaming raw beads having a nonuniform particle size distribution to form prefoamed particles; The pre-expanded beads are filled into a mold of a block molding machine and the pre-expanded beads are re-inflated at a steam pressure at which the EPS block having a low fusion ratio is formed when the particle size distribution of the raw material beads is uniform , Forming a reinforced EPS block having a high fusion rate; And cutting the reinforced EPS block into a reinforced EPS thermal insulation having a predetermined thickness.

Preferably, the method of manufacturing reinforced EPS thermal insulation according to the present invention is characterized in that the particle size distribution of the raw material beads is in the range of 0.71 to 2.83 mm and the pressure of the steam is in the range of 0.3 to 0.35 kgf / cm ² do.

Preferably, the method of manufacturing the reinforced EPS thermal insulation material according to the present invention is characterized in that the chamber size of the block molding machine is larger than that of the EPS block of the present invention and is larger than that of the molding machine chamber for producing an EPS block having a low fusion rate.

The reinforced EPS thermal insulation material according to the present invention is characterized in that it is manufactured by the above-described method of manufacturing the EPS thermal insulation material.

In addition, grooves are formed at predetermined intervals on the surface of the reinforced EPS insulation material according to the present invention, and the grooves are filled with a rod-shaped reinforcement material.

According to the present invention, it is possible to manufacture a reinforced EPS insulating material for use in a heat insulating panel with a reinforcing material having a structural strength enough to withstand natural disasters such as earthquakes. Further, by using such a reinforced EPS thermal insulator, there is provided a heat insulating panel with a reinforcing material having a structural strength enough to withstand natural disasters such as earthquakes.

Fig. 1 shows an example of the structure of a heat-insulating panel with a stiffener.
Fig. 2 shows an example of a case where the heat-insulating panel with a stiffener is used as a concrete formwork.
Fig. 3 shows an example of a case in which a casing is attached to a heat-insulating panel with a stiffener.
Fig. 4 shows an example of a case in which the interior material is attached to the reinforcing material insulating panel.
Fig. 5 shows the spacing in which the stiffener is disposed in the faceplate module when using a Japanese chuck unit (one chuck = about 0.994193908 feet). (A) shows a case where there are two stiffeners, and (B) shows a case where there are three stiffeners.
Fig. 6 shows the spacing in which the stiffener is disposed in the faceplate module, in the case of using the feet unit of the United States. (A) shows the case where there are two stiffeners, (B) shows the case where there are three stiffeners, and (C) shows the case where there are four stiffeners.
Fig. 7 shows an example of a seismic force causing bending deformation.
Fig. 8 shows an example of a case where a reinforcing material is attached to the surface of a flat reinforced EPS insulating material. (A) shows an example in which a shearing force acts, (B) shows an example in which a compressive force acts, and (C) shows an example in which a tensile force acts.
9 is a view for explaining the fusion rate. (A) shows an example in which the welding rate is high and (B) shows an example in which the welding rate is 0%.
Fig. 10 shows an example of the configuration of a nichrome cutter.
Fig. 11 shows an example of the configuration of a block molding machine.
12 is a flowchart showing an example of a method of manufacturing a reinforced EPS thermal insulation material according to an embodiment of the present invention.
Figure 13 shows a sample of reinforced EPS insulation. (A) is a perspective view of a reinforced EPS thermal insulator, and (B) is a cross-sectional view taken along line AA of (A).
Figure 14 shows a sample of the stiffener.

Hereinafter, a method of manufacturing a reinforced EPS thermal insulation material, a reinforced EPS thermal insulation material, and a heat insulating panel with a reinforcing material according to an embodiment of the present invention will be described with reference to the drawings. In all drawings, the same reference numerals are given to the respective common components.

The force applied to a building during an earthquake acts vertically, horizontally, and vertically. Therefore, the EPS insulation material is used for the heat insulation panel with the reinforcing material according to the embodiment of the present invention, because the EPS insulation material is manufactured by the molding of the mold, so there is no difference in the structural strength according to the direction. On the other hand, in the case of the foamed plastic heat insulator produced by the extrusion method, there is a difference in the structural strength depending on the extrusion direction. Fig. 1 shows an example of the structure of the heat-insulating panel 100 with a stiffener. The heat insulating panel 100 with the reinforcing material is composed of the reinforcing EPS insulating material 101 and the reinforcing material 102. The reinforced EPS thermal insulator 101 is an EPS thermal insulator reinforced with structural strength. On the surface of the reinforced EPS insulating material 101, concave sectional grooves (vertical grooves or horizontal grooves) are formed at predetermined intervals. The reinforcing member 102 has a bar-like shape such as a square bar. The stiffener 102 is made of a lightweight, high rigidity material such as lightweight steel, wood or plastic. The reinforcing member 102 is configured to be inserted into the groove of the reinforced EPS heat insulator 101 and fixed with an adhesive that does not damage the heat insulator.

Fig. 2 shows an example of using a reinforcing material-adhered panel 100 as a concrete formwork. The corresponding mold 110 is disposed opposite the reinforced EPS thermal insulator 101 and secured using a battens 111, a concrete foam tie 112 and other materials. Concrete is molded between the reinforced EPS insulating material 101 and the corresponding mold 110.

Fig. 3 shows an example in which the exterior material 123 is installed on the heat-insulating panel 100 with the stiffener. A concrete structure 120 is closely attached to the back surface of the reinforced EPS insulating material 101 and a reinforcing material 102 is embedded horizontally at predetermined intervals on the surface of the reinforced EPS insulating material 101. The outer base material 121 is fixed perpendicularly to the stiffener 102 using screws 122 or the like. The exterior material 123 is fixed to the exterior base material 121.

4 shows an example in which the interior material 130 is installed on the heat-insulating panel 100 with a stiffener. The concrete structure 120 is closely attached to the back surface of the reinforced EPS insulating material 101 and the reinforcing material 102 is embedded in the vertical direction at a predetermined interval on the surface of the reinforced EPS insulating material 101. The inner material 130 is fixed to the reinforcing member 102 using screws 122 or the like.

Japan's earthquake-resistance standards related to the structure of buildings are among the highest in the world. Therefore, if the reinforcing material-adhered and adiabated panel 100 meets the Japanese structural standard, it is considered to have sufficient seismic performance even when it is used in areas other than Japan. According to the "Guidelines for construction and operation of seismic design of non-structural members" and "Guidelines for seismic design of non-structural members" of Japan Architectural Institute, seismic forces (inertial forces) applied to non-structural members such as insulating panels, (Maximum of 1.5 with a design horizontal seismic intensity of 0.5 to 1.5), which is obtained by multiplying the weight of the non-structural member by the design horizontal gradient (maximum of 1.5). When constructing non-structural members in the walls of buildings (structural members), the structural strength of the non-structural members must be able to withstand seismic forces.

Exterior materials such as tiles and blocks are heavy and can weigh up to 100 ~ 150kgf / ㎡. If the maximum external sheath weight is 150 kgf / ㎡ and the horizontal slope for design is set to the maximum value of 1.5, the seismic force is obtained as follows:

150 kgf / m2 x 1.5 = 225 kgf / m2

Therefore, if the reinforcing material-adhered and adiabatic panel 100 has a structural strength capable of withstanding the seismic force of 225 kgf / m 2, it can be seen that most of the interior material and the exterior material can be installed on the adiabatic panel 100 with the reinforcing material.

The rigidity of the reinforced EPS insulating material 101 is much smaller than that of the reinforcing material 102. [ Therefore, the portion that is broken when the reinforcing-material-adhered and adiabatic panel 100 receives the seismic force is near the joint surface of the reinforced EPS insulating material 101 and the reinforcing material 102. The strength of this portion is generally related to the area of attachment of both materials and depends on the number of stiffeners 102 built into the reinforced EPS insulation 101. The seismic force acting on the reinforced EPS insulating material 101 can be dispersed and supported by the reinforcing member 102 so that the sheathing force applied to the reinforced EPS heat insulating member 101 can be dispersed and supported so that the heavier interior material and the sheathing material Can be installed.

Next, the strength of the reinforced EPS heat insulator 101 supporting the stiffener 102 to withstand the seismic force acting on the stiffener 102 will be examined. Various face plate modules are used for interior and exterior materials. In Japan, a chuck unit (910 x 1,820 mm) is mainly used for various face plate modules, and Fig. 5 shows an example of the interval of the stiffener 102 of the face plate module having the chuck unit. The spacing of the stiffener 102 of the face plate module having the chuck unit is 455 mm for two stiffeners 102 and 303 mm for three stiffeners 102. On the other hand, in countries other than Japan, pit units (1,220 x 2,440 mm, 4 x 8 feet) are mainly used for various face plate modules. Fig. 6 shows an example of the interval of the stiffener 102 of the face plate module having pits . The spacing of the stiffener 102 of the face plate module having pits is 610 mm for two stiffeners 102 and 406.7 mm for three stiffeners 102 and 305 mm for four stiffeners 102.

The heat-insulating panel 100 with the stiffener is fixed to the main structure via the reinforcing member 102 by screws or the like. Therefore, the presence of at least two reinforcing members 102 in the heat-insulating panel 100 with a stiffener facilitates adjustment of the deviation. When the number of the stiffeners 102 is two, the seismic force of 225 kgf / m < 2 > is dispersed into two stiffeners 102, and the seismic force per 1 m of the stiffener is obtained as follows:

- Chuck unit faceplate module:

225 kgf / m 2 x (0.91 m x 1 m) ÷ 2 = 102.4 kgf = 1003.3 N

- Faceplate module in feet:

225 kgf / m 2 x (1.22 m x 1 m) ÷ 2 = 137.3 kgf = 1345.1 N

When three or more stiffeners 102 are provided on the heat-insulating panel 100 with a stiffener, the seismic force is dispersed into three or more stiffeners 102. In this case, the seismic force per 1 m of the stiffener 102 is smaller than the case where there are two stiffeners 102.

The seismic force applied to the wall includes left-right and upward-and-downward movement parallel to the wall surface, and back-and-forth movement acting perpendicular to the wall surface. Shear stress and bending stress are applied to the vicinity of the joint surface between the reinforced EPS insulation material 101 and the reinforcing material 102 due to the seismic force in the right and left and upward and downward directions to cause shear deformation and bending deformation in the reinforced EPS insulating material 101. [ As shown in Fig. 7, the seismic force causing bending deformation is parallel to the main surface of the reinforced EPS thermal insulator 101. Fig. Since the area of the main surface of the reinforced EPS heat insulator 101 is considerably wide, the bending deformation can generally be ignored. Tensile stress and compressive stress are respectively applied to the vicinity of the joint surface between the reinforcing EPS insulating material 101 and the reinforcing material 102 due to seismic forces in forward and backward directions. Therefore, the reinforced EPS thermal insulator 101 must satisfy the allowable shear strength in the left and right direction, the allowable tensile strength in the forward direction, and the allowable compressive strength in the backward direction, respectively.

(The shear strength [sigma s], the compressive strength [sigma c], and the tensile strength [sigma] s) required for the reinforced EPS thermal insulating material 101 based on a simple model as shown in Fig. 8, in which the reinforcing material 102 is attached to the flat surface of the reinforced EPS thermal insulating material 101 ] And tensile strength [? T]). At this time, it is assumed that the reinforced EPS insulating material 101 and the reinforcing material 102 are firmly adhered, so that they are not separated even if seismic forces are applied. In practice, the bonding of the reinforced EPS insulating material 101 and the stiffener 102 is more rigid than that of the model of FIG. 8 because the stiffener 102 is attached to the vertical grooves of the reinforced EPS thermal insulator 101 Because it is embedded. The area of the joint surface of the reinforced EPS insulating material 101 and the reinforcing member 102 is expressed by the width x length (unit length 1 m) of the reinforcing member 102. Assuming that the seismic force per square meter of the above-described reinforcement (chucking unit: 1003.3 N, pit unit: 1345.1 N) acts as shear stress, tensile stress or compressive stress, , Compressive strength (? C) and tensile strength (? T) are as follows:

- Chuck unit faceplate module:

1003.3 N / (5 cm x 100 cm) = 2.01 N / cm ²

- Faceplate module:

1345.1 N / (5 cm x 100 cm) = 2.69 N / cm ²

Table 1 shows the shear strength (sigma s), compressive strength (sigma c) and tensile strength (sigma t) required for the reinforced EPS thermal insulator 101 when the width of the reinforcing member 102 is 30 mm to 105 mm.

Width of stiffener
(mm) Chuck unit faceplate module The face plate module σs, σc, σt
(N / cm ² ) σs, σc, σt
(N / cm ² ) 30 3.34 4.48 40 2.51 3.36 50 2.01 2.69 60 1.67 2.24 75 1.34 1.79 90 1.11 1.49 100 1.00 1.35 105 0.96 1.28

The strength of the EPS insulation depends mainly on the density and the fusion rate. The fusion rate is a numerical value of the ratio of visually observed ruptured expanded particles to the EPS thermal insulator at a cross section. As shown in Fig. 9 (A), when the ratio of the ruptured expanded particles is large, the fusion ratio is high. Further, as shown in Fig. 9 (B), when the foamed expanded particles are not present and all the expanded particles remain, the fusion rate is 0%. Table 2 shows the results of measurement of the permissible stress per density of EPS insulation with a fusion rate of 10% (the allowable stress of the elastic region, 1 (m / s)) within the range specified in Japanese Industrial Standard (JIS A9511) % Displacement stress).

density
(kg / m ³⁾ Fusion rate
(%) Shear strength
(N / cm ² ) Compressive strength
(N / cm ² ) The tensile strength
(N / cm ² ) Related JIS
standard 15 10 0.47 0.78 2.16 No.4 20 10 0.67 1.57 3.53 No.3 25 10 0.88 2.35 4.90 No.2 30 10 1.08 3.14 6.27 No.1 33 10 1.21 3.61 7.10

EPS insulation with a 10% fusion rate shown in Table 2 is generally used for building materials. This EPS insulation has an allowable shear stress of only 1.21 N / cm ² despite the density of 33 kg / m ³ . According to Table 1, in order to satisfy the shear stress, the width of the stiffener 102 in the case of the chuck unit face plate module should be 75 mm or more. In the pit unit face plate module, even when the width of the stiffener 102 is 105 mm, the allowable shear stress can not be satisfied. In this regard, considering that the size of the wooden pillar of a general wooden house is 30 mm and the width dimension of the woodworking material (ventilation barrel strip) to which the exterior material such as siding is attached is 45 mm, the width of the commonly used equipment is 30 to 45 mm . Therefore, the reinforcing member 102 having a width exceeding 75 mm is too large to be used as a material for equipment.

Generally, the EPS improves the structural strength as the density and the fusion rate are increased. However, if the density is increased, an increase in weight leads to an increase in raw materials and an increase in cost. Further, when the density exceeds 30 kg / m ³ , there is no additional advantage since the heat insulating performance (thermal conductivity) reaches almost equilibrium and is not greatly improved any more. For this reason, in the present invention, it is aimed to provide a reinforced EPS insulating material 101 that can improve the structural strength by increasing the fusion ratio.

As shown in FIG. 10, the reinforced EPS block 200 is cut from the nichrome wire 202 of the nichrome cutter 201, thereby completing the manufacture of the reinforced EPS thermal insulator 101. Generally, the density of the reinforced EPS block 200 is higher at the peripheral portion than at the central portion. That is, the reinforced EPS block 200 has a density variation. When the density deviation becomes large, the difference between the weight of the reinforced EPS heat insulator 101 cut at the center portion and the weight of the reinforced EPS insulator 101 cut at the periphery becomes large, which is not preferable.

On the other hand, the pre-expanded beads filled in the mold are pressurized and heated by steam, re-expanded and fused to produce an EPS block. In order to increase the fusion rate, it is effective to set the pressure of the steam (hereinafter referred to as heating pressure) to a high pressure. As the heating pressure is increased to a higher pressure, the temperature of the water vapor becomes higher and the precooled particles become easier to dissolve, so that the fusion rate can be increased and the heating time can be shortened. However, when the heating pressure is increased, the internal pressure (surface pressure applied to the mold) also increases proportionally, and the expanded particles around the area in contact with the mold are pulverized to increase the density, resulting in expansion of the expanded particles in the central part. Therefore, as the heating pressure is increased to a higher pressure, the density variation becomes larger. In order to reduce the density deviation, it is necessary to set the heating pressure to a low pressure. In addition, the heating time does not greatly affect the density deviation as compared with the heating pressure, because if the expanded particles expand and fuse to the surface of the EPS block, the steam does not enter the interior even if the heating time is extended.

Unlike the case of producing an EPS block having a low fusion rate, in the method of manufacturing reinforced EPS insulation according to an embodiment of the present invention, raw beads having a heterogeneous particle size of a predetermined particle size distribution (for example, 0.71 to 2.83 mm) use. The raw beads are prefoamed and expanded by a prefoamer to become prefoamed particles. Then, the pre-expanded beads are filled into the mold 301 of the block molding machine 300 as shown in Fig. 11 and re-expanded to become expanded beads. The heating pressure at re-expansion is set low to reduce density variation. The heating pressure is almost the same as the pressure for forming an EPS block having a fusion rate of 10% if the particle size of the raw material beads is uniform. Such a heating pressure is sufficient to improve the fusion rate, because it is possible to reduce the gap by allowing the small expanded particles to penetrate between the large expanded particles by varying the range of the particle sizes. The chamber 302 of the block molding machine 300 is designed to be capable of efficiently discharging water vapor in the mold 301 as compared with that of a conventional block molding machine for producing a general EPS block of the same size (about 10% fusion ratio) 60% larger (1.5 times as large as a conventional molding machine).

12 shows an example of a flow of a method of manufacturing a reinforced EPS thermal insulation material according to an embodiment of the present invention. First, pre-expanded beads are filled in a mold 301 (S1) and pre-heated (S2). Next, the inner pressure of the mold 301 is reduced to -0.9 to -0.7 kgf / cm ² (0.129 to 0.323 atm = 131.25 to 327.25 hPa) (S3). Water vapor is uniformly and momentarily discharged from the side surface of the mold 301 so as to completely supply water vapor to the inside of the mold 301 and the pre-expanded particles are foamed to form the reinforced EPS block 200 (S4). At this time, the heating pressure of the steam maintains a low pressure of 0.3 to 0.35 kgf / cm ² (0.29 to 0.338 atm = 293.8 to 342.4 hPa). The steam temperature is maintained at a predetermined heating temperature (110 to 120 ° C). Then, steps S3 and S4 are repeated a predetermined number of times (S5). Next, the reinforced EPS block 200 is vacuum-cooled (S6) and demolded from the mold 301 (S7). Finally, the reinforced EPS block 200 is cut into a plate having a predetermined size from the nichrome wire 202 of the nichrome cutter 201 to complete the reinforced EPS thermal insulator 101 (S8). Further, in the method of manufacturing reinforced EPS thermal insulation material according to the embodiment of the present invention, it is possible to form the reinforced EPS block 200 from filling the water vapor in the mold [301] for a long time Time until demolding). This is to ensure dimensional stability.

Table 3 shows the measurement results (the allowable stress of the elastic region, the 1% displacement stress) for the permissible stress of the reinforced EPS thermal insulation material 101 manufactured by the above-described manufacturing method. If the particle size of the raw material beads is uniform at the heating pressure and the heating temperature in step S4, an EPS insulating material having a fusion rate of about 10% is formed. However, in the case of manufacturing by the above-described manufacturing method, by increasing the fusion rate of the reinforced EPS thermal insulator 101 to 40%, the allowable shear stress is about 1.5 times, the allowable compressive stress is about 1.3 times, the allowable tensile stress is about 1.5 Respectively. The allowable shear stress at the density of 33 kg / m ³ was 1.88 N / cm ² , which was 35% higher than 1.21 N / cm ² at 10%. With this strength, the width of the stiffener 103 is reduced from less than 90 mm to less than 60 mm in the case of the chuck unit face plate module, and insufficient strength can be sufficiently overcome even if it is less than 75 mm in the case of the pit unit face plate module. As a result, according to the use of the reinforced EPS thermal insulation material 101 produced by the above-described manufacturing method, it is possible to manufacture the heat insulating panel 100 of practical type with two stiffeners attached thereto.

density
(kg / m ³ ) Fusion rate
(%) Shear strength
(N / cm ² ) Compressive strength
(N / cm ² ) The tensile strength
(N / cm ² ) Related JIS
standard 30 40 1.66 4.19 9.62 No.1 33 40 1.88 4.78 11.01

[Example]

Chamber 302, the capacity increase of 60% was used (1.5 times as much as regular molding machine) block molding machine 300 by 925㎜ width, length 3020㎜, 525㎜ thickness, the average density of 33 kg / m ^3, the average percentage of fusion 40% of reinforced EPS blocks were prepared. As raw material beads, nonuniform raw material beads having a non-uniform particle size (particle size distribution: 0.71 to 2.83 mm) were used.

First, the raw beads were prefired in predetermined units in a preliminary blowing machine. Next, after the pre-expanded beads were cured in an aging silo, the mold 301 was pre-heated on all sides (side, top and bottom) to fill the pre-expanded beads. Then, the mold 301, heating the inside, and again under reduced pressure to ^{-0.8 kgf / cm 2 (-838.2 hPa} ) removing excess air as possible in a state to repeat the heating and evacuating step-up increased the internal vapor pressure of the pre-expanded particles, Respectively. Next, a large amount of water vapor in a state of low pressure (0.3 kgf / cm ² = 294.0 hPa) was rapidly supplied from the side surface to the center of the mold, thereby heating the pre-expanded beads and removing fusion unevenness. When the contact pressure of the block molding machine 300 reaches 0.7 to 0.9 kgf / cm ² (685.9 to 881.9 hPa), it is heated for about 70 seconds on all sides (side, top and bottom) The adhesion to the surface was improved, and the water vapor was stopped. Then, after the mold 301 is vacuum-cooled, the reinforced EPS block 200 is demolded. The reinforced EPS block 200 was cut from the nichrome cutter 201 into plates each having a thickness of 75 mm. The plate cut from the center of the reinforced EPS block 200 was extracted with a sample of the reinforced EPS heat insulator 101 to confirm whether or not the plate had a predetermined strength.

Next, as shown in Fig. 13, grooves having a width of 45 mm and a depth of 20 mm were processed by routers at intervals of 455 mm on the samples of the reinforced EPS heat insulator 101. As shown in Fig. 14, a sample of a reinforcing material 102 having a width of 45 mm and a thickness of 20 mm was produced by extrusion molding by carbon dioxide foaming using a polystyrene resin as a raw material. Next, a urethane-based adhesive was applied to the groove of the reinforced EPS heat insulator 101 sample so as to have an adhesion area of 600 cm ² per 1 m of the reinforcing material, and a sample of the reinforcing material 102 was fixed to the groove. Then, the adiabatic panel 100 with a reinforcing material was manufactured by drying until the adhesive hardened. Finally, the heat-insulating panel 100 with a reinforcing material was cut to a predetermined size, and its mechanical properties were measured with a universal testing machine to confirm that it had a predetermined strength.

The structure in which the reinforcing member 102 is inserted into the groove like the reinforcing member-equipped heat insulating panel 100 shown in the above embodiment can reduce the total thickness of the heat insulating panel 100 with the reinforcing member, There is a big advantage in. There are three types of stresses that the reinforced EPS insulating material 101 receives from the reinforcing material 102, that is, compression, tensile, and shear. The joint between the reinforced EPS insulating material 101 and the reinforcing material 102 is most vulnerable to shear stress . The reinforcing member 102 is inserted into the groove and stresses (compression and tension) other than the front end are applied to both sides of the reinforcing member 102 to further strengthen the bonding between the reinforcing EPS insulating member 101 and the reinforcing member 102 have.

As described above, by adjusting the particle distribution of the raw material beads, the amount of decompression in the mold, the temperature of steam, the pressure of steam, the molding time and the like, the test was repeated to obtain a high fusion rate (average fusion rate of 40%) and an average density of 30 It has become possible to produce reinforced EPS insulating materials having ~ 33 kg / m < ³ >. This type of reinforced EPS insulation corresponds to the No.1 standard of Japanese Industrial Standard JIS A9511, and the insulation panel with the stiffener attached to the reinforced EPS insulation material has the seismic force applied to the heavyweight outer casing (150 kgf / ㎡) It has a structural strength enough to withstand.

It will be apparent that various modifications and combinations can be made within the scope of the claims of the invention and the embodiments described above, depending on design requirements and other factors.

100 With stiffener Insulation panel 101 Enforced EPS insulation
102 Stiffener 110 Response Formwork
111 batten 112 Concrete Foam Tie
120 Concrete Structures 121 Exterior Foundation Materials
122 Screw 123 Outer material
130 Interior material 200 reinforced EPS block
201 Nichrome cutter 202 Nichrome wire
300 block molding machine 301 mold
302 chamber

Claims (5)

Pre-foaming raw beads having a particle size distribution in the range of 0.71 to 2.83 mm to form pre-expanded beads;
The pre-expanded beads were filled into a mold of a block molding machine and 0.3 parts of an EPS block having a fusion ratio of 10% was formed when the particle size of the raw material beads was uniform within a range of 0.71 to 2.83 mm Preparing a reinforced EPS block by redepositing the prefoamed particles at a water vapor pressure in the range of about 0.35 kgf / cm ² ;
And cutting the reinforced EPS block into a reinforced EPS thermal insulation of a predetermined thickness
Method of manufacturing reinforced EPS insulation.
The method according to claim 1,
The chamber size of the block molding machine is configured to be 1.5 times larger than that of a conventional block molding machine for manufacturing a general EPS block of the same size having a fusion rate of 10%
Method of manufacturing reinforced EPS insulation.
A reinforced EPS insulating material produced by the method of manufacturing the reinforced EPS insulating material according to claim 1.
The heat-insulating panel with a reinforcing member according to claim 3, wherein grooves are formed at predetermined intervals on the surface of the reinforced EPS heat-insulating material, and the grooves include a rod-like stiffener. delete

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