JP2011032763A - Composite sheet for construction method of covering and bonding civil engineering and architectural structure, and construction method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite sheet and a construction method, capable of bonding and covering firmly a coating material onto a civil engineering and architectural structure in a short time. <P>SOLUTION: This composite sheet is constituted of a sheet-like core material comprising high-frequency induction heat generation metal, and having porous structure, and a resin coating layer for covering at least one face thereof, and containing an ethylene-ethylenic unsaturated carboxylic acid metal ion coordinate copolymer, the composite sheet is arranged between the structure and a nonconductive coating material, the sheet-like material is heat-generated while pressed from a covering material side by a high-frequency induction heating machine, the resin covering layer is fused with heating pressing thereby, and the structure is bonded to a covering material therein. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a composite sheet used in a civil engineering / building structure covering bonding method and a construction method of a civil engineering / building structure covering bonding method using the composite sheet. More specifically, the present invention relates to a composite sheet for civil engineering / building structure coating bonding method, comprising a sheet-like core material having high-frequency induction heat generation and a thermoplastic resin-containing resin coating layer covering the core material. In addition, the present invention relates to a construction method of a civil engineering / building structure covering bonding method using the composite sheet or the composite sheet piece as an adhesive member.

In order to give the surface of civil engineering and building structures aesthetics, waterproofness, water shielding, chemical resistance, weather resistance, smoothness and antifouling properties, and / or dirt removal properties, etc. It is known to coat with a coating material having In addition, a physical fixing method using a screw, a nail, an anchor bolt, a mounting frame, etc., and a fixing method using an adhesive material are known for attaching the covering material. However, in the above fixing method using screws, nails and anchor bolts, there is a problem that the fixing means penetrates the covering material, and a hole is made in the covering material, and that the covering material is damaged when the covering material is removed. There is also.
In addition, it is difficult to uniformly apply the adhesive to the structure or covering material at the work site, and the bonding liquid coating method described above is not used except when the joint surface of the structure is horizontal. Since the liquid adhesive applied to the bonding surface flows down due to gravity, uniform bonding is difficult, and special treatment such as pressing for a long time is required to obtain uniform bonding. In addition, the adhesive effect of liquid adhesives depends on weather conditions such as temperature and humidity during construction, problems such as deterioration and discoloration during long-term use, and possible environmental pollution. Has a point.

  Japanese Unexamined Patent Application Publication No. 2001-262085 (Patent Document 1) and Japanese Unexamined Patent Application Publication No. 2002-371253 (Patent Document 2) disclose induction heating adhesive sheets and tapes. These induction heating adhesive sheets and tapes are composed of a high frequency induction heating sheet or tape made of a metal foil such as an aluminum foil, and a hot-melt adhesive layer applied to the heating sheet or tape. However, according to the research of the inventors of the present invention, such an adhesive sheet is used in a construction method for civil engineering / building structures in terms of its mechanical strength, adhesive strength, durability, and handleability. It was inappropriate.

The inventors of the present invention use a metal attachment member fixed to a structure and bonded to a covering material as a high-frequency induction heating element, and a hot-melt adhesive is applied to the bonding surface to form a metal bonding member. A member is configured, and this is fixed in advance to the joint surface of the structure with anchor bolts, a covering material is disposed on the fixed metal joint member, and the metal portion of the metal adhesive member is heated by high frequency induction. Then, the hot melt adhesive on the surface was melted, and an attempt was made to join the coating material to the metal adhesive member. As a result, it was confirmed that the above test method has the following problems.
(1) Air permeates and expands between the metal surface at the joint and the hot melt adhesive layer, and the metal surface deteriorates due to the action of water vapor, oxygen, etc. in the air, and the metal surface and adhesive The adhesive strength with the coating film decreases and eventually separates.
(2) When the hot melt adhesive coating film is thin, if the parallelism between the adhesive member surface and the coating material surface is insufficient, only a part of the contact surface member is bonded to the coating material. The parts should not be joined, and therefore sufficient adhesive strength cannot be obtained.
(3) When the bending rigidity of the covering material is high, an adhesive member that does not come into contact with the surface of the covering material is generated, and therefore the covering material may not be sufficiently fixed to the surface of the structure.
(4) The above problems (1), (2), and (3) can be prevented by increasing the thickness of the hot melt adhesive coating film. In order to sufficiently melt the melt-based adhesive, it is necessary to extend the heating time. Therefore, as a matter of course, the metal part of the adhesive member generates heat over a long period of time, and the temperature rises. The hot melt adhesive part in contact with the metal part is overheated, causing a problem of thermal degradation.

JP 2001-262085 A JP 2002-371253 A

  The problem to be solved by the present invention is used in a civil engineering / building structure coating bonding method, and a non-conductive coating material is coated evenly within a short time on a structure using a high-frequency induction heat generation phenomenon. A composite sheet that can be bonded, and the covering bonding layer formed thereby can be bent following the bent shape of the surface of the structure, and has high practical durability, and the composite It is providing the construction method of the civil engineering / building structure coating | bonding construction method which uses a sheet | seat or a composite sheet piece as an adhesive member.

The composite sheet for civil engineering / building structure covering adhesion method of the present invention comprises a sheet-like core material made of a high frequency induction exothermic metal and a thermoplastic resin as main components, and covers at least one surface of the sheet-like core material. The sheet-like core material has a porous structure that allows the resin melt to enter and fill when the thermoplastic resin for the resin coating layer is melted,
The thermoplastic resin for a resin coating layer includes at least one metal ion coordination body of an ethylene-ethylenically unsaturated carboxylic acid copolymer as a main component.
In the composite sheet of the present invention, it is preferable that the high-frequency induction exothermic metal for sheet-like core material is at least one selected from iron, iron alloy, aluminum, aluminum alloy, copper, and copper alloy.
In the composite sheet of the present invention, the sheet-shaped core material has at least one type of structure selected from a mesh-shaped woven or knitted fabric, a sheet having a plurality of through holes formed apart from each other, and a nonwoven fabric. Preferably there is.
In the composite sheet of the present invention, the metal ion coordination body of the ethylene-ethylenically unsaturated carboxylic acid copolymer for the resin coating layer,
Ethylene monomer,
A copolymer of at least one monomer selected from acrylic acid, methacrylic acid, fumaric acid, maleic acid, maleic acid monoalkyl ester, and maleic anhydride,
It is preferably selected from coordination bodies formed of metal ions having monovalent to trivalent charges.
In the composite sheet of the present invention, it is preferable that both sides of the sheet-like core material are covered with the resin coating layer, and the double-sided resin coating layer is continuous through the porous structure of the sheet-like core material.
The civil engineering / building structure covering and bonding construction method of the present invention is the above-described composite sheet for civil engineering / building structure covering bonding method of the present invention disposed on the surface of the covering bonding object of the civil engineering / building structure. A non-conductive coating material is disposed on the sheet, and the sheet-like core material made of a high-frequency induction heat-generating metal in the composite sheet is heated while being pressed by the high-frequency induction heater through the non-conductive coating material. Then, the thermoplastic resin in the composite sheet is melted, and the non-conductive coating material is bonded and fixed to the surface of the coated object to be bonded by the thermoplastic resin melt.
In the construction method of the present invention, it is preferable that the covering adhesion target object includes one or more selected from metals, concrete, wood, ceramics, and synthetic resins.
In the construction method of the present invention, it is preferable that the non-conductive coating material is an article including one or more selected from concrete, wood, ceramics, and non-conductive synthetic resin.

  The composite sheet for the civil engineering / building structure covering bonding method of the present invention uses a high frequency induction heat generation phenomenon of a sheet-like core material made of a high frequency induction heat generating metal contained in the composite sheet, and applies a non-conductive covering material to the structure. In a short time, the coated bonding layer can be evenly coated, and the coated bonding layer formed thereby can be bent following the bent shape of the structure surface, and has high practical durability. Is. In addition, the construction method of the civil engineering / building structure covering bonding method of the present invention uses the composite sheet of the present invention to apply a non-conductive coating material to the civil engineering / building structure in a short time and uniformly. It can be well coated.

Cross-sectional explanatory drawing which shows an example of the composite sheet of this invention. Cross-sectional explanatory drawing of an example of the sheet-like core material which consists of a mesh-like textile fabric in the composite sheet of FIG. Plane explanatory drawing of an example of the mesh-shaped textile fabric of FIG. Cross-sectional explanatory drawing which shows the other example of the composite sheet of this invention. Plane explanatory drawing of an example of the sheet-like core material which consists of a porous sheet in the composite sheet of FIG. Cross-sectional explanatory drawing which shows the further another example of the composite sheet of this invention. The plane photograph of an example of the sheet-like core material which consists of a nonwoven fabric in the composite sheet of FIG. Cross-sectional explanatory drawing which shows an example of a structure-covering material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a mesh-like textile fabric structure. Cross-sectional explanatory drawing which shows the other example of a structure-covering material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a mesh-like textile fabric structure. Cross-sectional explanatory drawing which shows the further another example of a structure-covering material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a mesh-like textile fabric structure. Cross-sectional explanatory drawing which shows the further another example of a structure-covering material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a mesh-like textile fabric structure. Cross-sectional explanatory drawing which shows an example of a structure-coating material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a porous sheet structure. Cross-sectional explanatory drawing which shows the other example of a structure-coating material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a porous sheet structure. Cross-sectional explanatory drawing which shows the further another example of a structure-covering material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a porous sheet structure. Cross-sectional explanatory drawing which shows an example of a structure-coating material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a nonwoven fabric structure. Cross-sectional explanatory drawing which shows the other example of a structure-coating material adhesive body using the composite sheet of this invention containing the sheet-like core material which has a nonwoven fabric structure. Cross-sectional explanatory drawing which shows the further another example of a structure-coating material adhesive body using the composite material of this invention containing the sheet-like core material which has a mesh-like fabric structure. Cross-sectional explanatory drawing for demonstrating an example of this invention construction method performed using the composite sheet of this invention. Cross-sectional explanatory drawing for demonstrating the other example of this invention construction method performed using the composite sheet of this invention. Plane explanatory drawing for demonstrating the construction method example of FIG.

The composite sheet for civil engineering and building structure covering adhesion method of the present invention (hereinafter referred to as composite sheet) is composed of a sheet-like core material and a resin coating layer covering at least one surface thereof. In FIG. 1, the composite sheet 1 is comprised by the sheet-like core material 2 and the resin coating layer 3 which has coat | covered both surfaces. The resin coating layer may be formed only on one side of the sheet-like core material. The sheet-like core material is made of a high-frequency induction heat-generating metal, and the resin coating layer contains a thermoplastic resin as a main component. The sheet-shaped core material has a porous structure that allows the thermoplastic resin melt to penetrate into and penetrate the sheet-shaped core material when the thermoplastic resin for the resin coating layer is melted. Yes.
The yarn forming the mesh woven or knitted fabric structure may be either the high-frequency induction exothermic metal fine wire or the tape twisted wire. The diameter of the yarn (metal wire) constituting the mesh-shaped woven or knitted fabric used as the sheet-like core material of the composite sheet of the present invention and the mesh opening are shown in JIS G 3556 (industrial woven wire mesh) Appendix Table 1 (Wire Diameter) And combinations of openings and permissible errors of openings), and Table 2 (combinations of wire diameter and openings) can be appropriately selected and set. In particular, the wire diameter is preferably 0.15 to 0.3 mm, and the aperture is preferably within twice the wire diameter.

  The sheet-like core material can be appropriately selected from metals having high-frequency induction heat generation properties. Examples of the high frequency induction exothermic metal used in the present invention include iron and iron alloys (for example, stainless steel, sendust, silicon steel, KS steel, iron-nickel alloy, iron-nickel-cobalt alloy, and iron-cobalt alloy). , Aluminum, aluminum alloys (eg, aluminum-magnesium alloy, geralumin, aluminum-silicon eutectic alloy, etc.), copper and copper alloys (eg, brass, red copper, copper-zinc alloy, copper-zinc-nickel alloy, copper-tin) Alloys, copper-nickel alloys, and the like). Among these, it is preferable to use ferritic stainless steel, aluminum-magnesium alloy and brass.

  The sheet-like core material having the porous structure may have one or more kinds of tissue structures such as a mesh-like woven or knitted fabric, a sheet (perforated plate) having a plurality of through holes formed apart from each other, and a nonwoven fabric. preferable. As illustrated in FIG. 2 (cross-sectional view) and FIG. 3 (plan view), the mesh-shaped knitted fabric 2 is constituted by the diameter yarns 2a and the weft yarns 2b that are arranged apart from each other and intersects each other. A gap space 2c is formed between the diameter yarn 2a and the weft yarn 2b. A part of the thermoplastic resin forming the resin coating layer can be received in the void space 2c.

The sheet-like core material may have a porous sheet structure. For example, the porous sheet 4 shown in FIG. 5 has a large number of through holes (through holes) spaced apart from each other, and as shown in FIG. When the layer 3 is formed, if the resin coating layer 3 is heated and the thermoplastic resin contained therein is melted, a part thereof can be accommodated in the through-hole 4.
The thickness of the porous sheet is preferably 0.30 to 3.00 mm, and there is no particular limitation on the shape and size of the through holes, but it is generally circular or square, and the size is 0.5 to 5.0 mm. It is preferable that it is 1 to 2.5 mm.

  The sheet-like core material may have a nonwoven fabric structure. As illustrated in FIG. 7, the nonwoven fabric 5 is composed of a large number of fibers 5 a intersecting or entangled with each other, and a large number of voids 5 b are formed therebetween. As shown in FIG. 6, the composite sheet 1 can be formed by forming the resin coating layer 3 on both surfaces of the sheet-like core material 5 having a nonwoven fabric structure. When the thermoplastic resin in the resin coating layer is heated and melted, a part thereof can fill the gap 5b.

In the composite sheet, when the resin coating layers are formed on both upper and lower surfaces of the sheet-like core material, if the thermoplastic resin therein is heated and melted, the upper and lower resin coating layers are in the porous structure of the sheet-like core material. Permeation, filling, and continuous with each other can reinforce the composite sheet.
Even when the resin coating layer is formed on only one surface of the sheet-like core material in the composite sheet, when the thermoplastic resin therein is melted by heating, the porous structure of the sheet-like core material is filled, and vice versa. It overflows on both sides and can be joined to the adherend surface.

The thermoplastic resin for a resin coating layer contained in the composite sheet of the present invention has, as its main component, a metal ion coordination body (hereinafter referred to as a metal ion coordination) of at least one ethylene-ethylenically unsaturated carboxylic acid copolymer. (Referred to as a co-polymer).
The metal ion coordination copolymer is at least selected from an ethylene monomer and an ethylenically unsaturated carboxylic acid such as acrylic acid, methacrylic acid, fumaric acid, maleic acid, maleic acid monoalkyl ester, and maleic anhydride. A copolymer with one monomer can be selected from carbonyl blends with metal ions, for example, metal ions having a monovalent to trivalent charge. The metal ions are preferably selected from alkali metal ions (for example, Na ions and K ions), alkaline earth metal ions (for example, Ca ions and Ba ions), Mg ions and Zn ions. The metal ion coordination copolymer is preferably contained in a proportion of 30 to 100% by mass, more preferably 60 to 100% by mass, based on the total mass of the thermoplastic resin in the resin coating layer. . When the content ratio of the metal ion coordination copolymer is less than 30% by mass, the adhesion between the obtained resin coating layer and the sheet-like core material and the adhesion to the surface of the coating adhesion object become insufficient. May cause inconvenience.

  In the resin coating layer for a composite sheet of the present invention, the additive resin component used as the metal ion coordination copolymer is, for example, ethylene-methyl methacrylate copolymer resin, ethylene-methyl methacrylate-maleic anhydride Original copolymer resin, polyamide resin, polyester resin, chloroprene rubber resin, polyester resin, urethane rubber resin, styrene-butadiene resin, or polyethylene resin, block polyethylene resin, polypropylene resin, block polypropylene resin , Polyvinyl chloride resin, ethylene-vinyl acetate copolymer resin, ethylene-vinyl alcohol copolymer resin, acrylic resin, ethylene-vinyl acetate-carbon monoxide triple copolymer resin, urethane resin-vinyl chloride resin Use one or more of a mixture It is preferred. Moreover, you may add 1 or more types of additives, such as tackifying resin, oils, an inorganic filler, antioxidant, a stabilizer, to the said resin coating layer as needed. The composition of the thermoplastic resin is preferably selected and used as appropriate according to the material of the adherend coating surface of the structure and the material of the coating material. For example, when the material of the surface to be bonded of the covering material is so-called synthetic wood formed of thermoplastic resin and wood powder, or when the surface to be bonded is covered with resin, It is preferable to use an adhesive resin having the same or chemical interface interaction force as the resin used.

Production of composite sheet of the present invention In the production of the composite sheet of the present invention, when a resin coating layer is formed on one surface of a sheet-like core material, a thermoplastic resin for forming the resin coating layer (metal ion coordination copolymer) In the resin melting tank, and preferably melted so that the melt flow rate is 10 g / 100 min or more to prepare a resin melt preferably having the above high fluidity. Separately, a sheet-like core material is placed on a release paper, and the resin melt is coated on the upper surface thereof, and cooled to form a resin coating layer having a thickness larger than the thickness of the core material. At this time, it is preferable that the porous structure of the sheet-like core material is sufficiently filled with the resin, and no bubbles remain in the resin coating layer. Moreover, it is preferable that the thickness of the resin coating layer on a sheet-like core material does not exceed the thickness of a sheet-like core material.
In the production of the composite sheet of the present invention, when the resin coating layer is formed on both the upper and lower surfaces of the sheet-like core material, a resin melt is prepared in the same manner as described above in the resin melting tank, and on the release paper. The upper surface of the sheet-like core material placed on the substrate is coated with the resin melt by the above method to form an upper surface resin coating layer. Next, on the new release paper, the sheet-shaped core material coated on the upper surface is placed with the lower surface facing upward, coated with the resin melt, cooled, and the lower surface resin coating layer is formed. Form. At this time, it is preferable that a resin coating layer having a desired thickness is formed on the upper and lower surfaces of the sheet-like core material, and that the porous structure of the sheet-like core material is sufficiently filled with the resin melt. That is, it is preferable that no bubbles remain in the obtained composite sheet. Moreover, it is preferable that the thickness of the resin coating layer on the sheet-like core material on the lower surface does not exceed the thickness of the sheet-like core material, respectively.
If the thickness of the resin coating layer is excessive, the time and energy required to melt the resin coating layer will be excessive, and the excess resin melt will protrude from the bonded part to form a bump.・ Stereoscopic inconvenience may occur.

Method using an extrusion molding machine When the thermoplastic resin for forming a resin coating layer of the composite sheet of the present invention can be prepared in an extrusion molding machine, a resin melt having a melt flow rate of 0.5 to 30 g / 10 min can be prepared. Without using a resin melting tank, a resin melt having a desired melt flow rate is prepared in an extrusion molding machine, and this is extruded into a sheet form from a die slit, on one or both sides of a sheet-like core material Coat. At this time, it is preferable that the thickness of the resin coating layer does not exceed the thickness of the sheet-like core material as described above.

Method using a hot press machine When the thermoplastic resin for forming a resin coating layer of the composite sheet of the present invention has a melt flow rate of 0.5 to 30 g / 10 min, from the thermoplastic resin, using a hot press, the desired A sheet having a thickness of is prepared. The thermoplastic resin sheet is overlaid on one or both of the upper and lower surfaces of the sheet-like core material, and this laminate is subjected to a hot press to be heated to a predetermined temperature, generally 80 to 230 ° C. Press to integrate. When this hot pressing method is used, when the sheet-like core material has a nonwoven fabric structure, it is preferable to use a thermoplastic resin having a melt flow rate of 10 to 30 g / min.

  The civil engineering / building structure covering adhesive bonding method according to the present invention is a method of arranging the composite sheet for civil engineering / building structure covering bonding method according to the present invention on the covering bonding target surface of the civil engineering / building structure, A sheet-like core material made of a high-frequency induction heat-generating metal in the composite sheet is heated by a high-frequency induction heater through the step of disposing a non-conductive coating material on the non-conductive coating material. And melting the thermoplastic resin in the composite sheet, and bonding and fixing the non-conductive coating material to the surface of the coated object to be bonded by the thermoplastic resin melt.

  In the method of the present invention, there is no particular limitation on the covering adhesion target of civil engineering / building structures as long as it can be adhered to the melt of the resin coating layer of the composite sheet of the present invention. It can be applied to articles including one or more selected from metals (for example, iron, aluminum, copper, and alloys thereof), concrete, wood, ceramics (for example, tiles), and synthetic resins. .

  The kind of the non-conductive coating material in the method of the present invention is not particularly limited as long as it has adhesiveness to the thermoplastic resin contained in the resin coating layer of the composite sheet of the present invention. However, in general, an article including at least one selected from concrete, wood, ceramics, and synthetic resin, preferably a sheet-like body, a plate-like body, and the like can be used.

  The operating conditions, pressing method, degree, and the like of the high-frequency induction heater may be appropriately limited according to the type, size, shape, and composition, size, shape, etc. of the composite covering object and the covering material of the structure.

  The composite sheet and construction method of the present invention are further illustrated by the following examples.

Example 1 (FIG. 8)
Production of composite sheet 1
Sheet-like core material 2 : Sheet-like material made of a mesh-like woven fabric having an aperture of 0.5 mm, a porosity of 44%, and a thickness of 0.70 mm, using a wire made of an aluminum-magnesium alloy (wire diameter: 0.25 mm) Core material 1 was used.
Resin coating layer 3 : A thermoplastic resin composition having the following composition was prepared.
Component blending mass ratio Zn ion coordination body of ethylene-methacrylic acid copolymer (trademark: Hyramine 1702,
Melting point: 90 ° C., MFR: 14 g / 10 min) 30
Ethylene-acrylic acid ester-maleic anhydride terpolymer (melting point: 100 ° C., MFR: 20
g / 10 min, trademark: Bondine HX) 70
[註] MFR: Melt flow rate The resin composition is applied and coated on both surfaces of the sheet-like core material 2 at 180 ° C. to form a resin coating layer 3, thereby a composite sheet 1 having a thickness of 1.15 mm. It was created.
Construction of construction (concrete) / composite sheet / coating material (plywood) bonded body 21 A 100 mm square piece was cut out from the composite sheet. A porous surface 22a of a covering adhesion object 22 made of a concrete plate (length: 300 mm, width: 300 mm, thickness: 50 mm) of a structure, and a covering material made of a plywood plate (length 300 mm, width 300 mm, thickness 9 mm) A laminated portion was formed by sandwiching a small piece of the composite sheet between 23 porous surfaces 23a. Using a portable high-frequency induction heater (trademark: SHT-IH 1102, manufactured by Cyhit Corp., oscillation frequency: 20 KHz, maximum output current: 1.5 KW), a circular adapter (90 mm in diameter) at the bottom is placed on the plywood The laminated part was pressed and pressed, energized for 25 seconds, energized for 15 seconds and cooled, and the laminated parts were joined and integrated.
The adhesion strength of this joined body was measured by the test method described in 7.9 of JIS A 6909. The adhesion strength was 0.1 N / mm ² , and the surface wood part of the plywood was broken. The results are shown in Table 1. It was confirmed that the concave portion of the porous surface 22a of the concrete 22 and the concave portion of the porous surface 23a of the plywood plate 23 were infiltrated and filled with the thermoplastic resin of the resin coating layer of the composite sheet.

Example 2 (FIG. 9)
Production of Composite Sheet 1 The same mesh-like aluminum-magnesium alloy wire fabric as in Example 1 was used as the sheet-like core material 2.
The resin coating layer 3 is made of the same ethylene-methacrylic acid copolymer Zn ion coordination as in Example 1 and a mass ratio of 50:50 between block polypropylene having a melting point of 140 ° C. and MFR of 2.5 g / 10 min. Formed by the mixture.
A composite sheet 1 having a thickness of 1.15 mm was produced from the sheet-like core material 2 and a resin coating layer formed on both surfaces thereof.
Formation of Structure (Concrete) / Composite Sheet / Coating Material (Synthetic Wood) Adhesive Body Porous surface 22a of the same concrete plate 22 (300 mm × 300 mm × 50 mm) as in Example 1 and polypropylene synthetic wood 24 (300 mm × A laminated portion was formed by sandwiching a small piece of 100 mm × 100 mm of the composite sheet between a smooth surface of 300 mm × 6 mm), and high frequency induction heating pressing was applied to the laminated portion in the same manner as in Example 1. However, electricity was supplied for 20 seconds, and electricity supply was stopped for 15 seconds to cool. In the joint portion between the composite sheet and the polypropylene synthetic wood, these molten resins were mixed with each other to form a resin melt mixing region 24a. The results of adhesion strength measurement are shown in Table 1.

Example 3 (FIG. 10)
Production of Composite Sheet A composite sheet was produced in the same manner as in Example 1. However , a metal ion coordination copolymer using block polypropylene (melting point: 144 ° C., MFR: 2.5 g / 10 min) instead of the ethylene-acrylic acid ester-maleic anhydride terpolymer for the resin coating layer. The mass ratio of propylene to block propylene was 50:50.
Structure (Synthetic wood) / Composite sheet / Coating material (Polypropylene plate) Bonding formation construction Using the small piece (100 mm × 100 mm) of the composite sheet 1 in the same manner as in Example 1, the synthetic wood plate for structure 25 Laminated with a small piece of the composite sheet between a smooth surface (300 mm x 300 mm x 120 mm, including polypropylene resin as a resin component) and a smooth surface of a polypropylene plate 27 (300 mm x 300 mm x 5 mm) for coating material A part was formed, and this was bonded by high frequency induction heating in the same manner as in Example 1. However, electricity was supplied for 15 seconds, and electricity supply was stopped for 15 seconds to cool. The adhesion strength measurement results are shown in Table 1. At the joints between the resin coating layer of the composite sheet and each of the surface of the synthetic material and the surface of the polypropylene plate, both resins were melted and mixed to form resin melt mixing regions 26 and 27a.

Example 4 (FIG. 11)
Preparation of composite sheet Sheet core: Same as Example 1. Resin coating layer: The composition of the thermoplastic resin was as follows.
Component blending mass ratio Zn ion coordination body of ethylene-methacrylic acid copolymer (trademark: Hyramine 1705,
Melting point: 98 ° C., MFR: 5.5 g / 10 min) 50
Ethylene-acrylic acid ester-maleic anhydride terpolymer (Trademark: Bondine FX,
Melting point: 107 ° C., MFR: 5 g / 10 min) 50
A composite sheet (thickness: 1.15 mm) was produced from the above sheet-like core material and thermoplastic resin composition in the same manner as in Example 1.
Structure (concrete board) / composite sheet / coating material (synthetic wood) board bonded body construction Construction material board 22 (300 mm x 300 mm x 50 mm) porous surface and synthetic wood board 28 (300 mm) containing polypropylene as a resin component A laminated portion is formed by sandwiching a small piece (100 mm × 10 mm) of the composite sheet 1 between a smooth surface of × 300 mm × 1.6 mm), and this is subjected to high frequency induction heating and The laminated part was joined and integrated by applying pressure. The adhesion strength measurement results are shown in Table 1.
The concave portion of the porous surface of the concrete board 22 is filled with the thermoplastic resin of the resin coating layer of the composite sheet, and a resin melt mixing region with the thermoplastic resin is formed on the bonding surface 28a portion of the synthetic wood 28 (illustrated). Was not formed).

Example 5 (FIG. 12)
Production of Composite Sheet (1) Ferritic stainless steel punched metal plate (thickness: 0.5 mm, through-hole diameter: 2 mm, arrangement: pitch: 3 mm, staggered arrangement of 60 degrees angle) was used as the sheet-like core material. .
(2) The resin coating layer was formed in the same manner as in Example 1 by using an ethylene-methacrylic acid copolymer Zn ion coordination body (trademark: Hylamin 1705, melting point: 98 ° C., MFR: 5.5 g / 10 min). Formed.
(3) The resin coating layer was formed on both surfaces of the sheet-like core material to produce a composite sheet having a thickness of 1.25 mm.
Structure (resin concrete) / composite sheet / coating material (synthetic wood board) As a construction structure, a smooth surface 29a of resin concrete board 29 (300 mm × 300 mm × 50 mm) and polypropylene as a coating material A laminated part is formed by sandwiching a small piece (100 mm × 100 mm) of the composite sheet 1 between the smooth surface 28a of the synthetic wood 28 containing as a resin component, and in the same manner as in Example 1, high frequency induction is performed. The laminated part was bonded together by heating and pressing. However, electricity was supplied for 20 seconds, and electricity supply was stopped for 15 seconds to cool. The measurement results of the adhesion strength are shown in Table 1.
The resin concrete plate 29 is bonded to the composite sheet 1 with a high adhesion strength at the bonding surface 29a, and the synthetic wood 28 and the resin coating layer of the composite sheet 1 are bonded to the resin melt mixing zone (at the bonding surface 28a). (Not shown) was formed and was firmly joined.

Example 6 (FIG. 13)
Production of Composite Sheet (1) The ferritic stainless steel punching metal plate described in Example 5 was used as the sheet-like core material.
(2) For the resin coating layer, a Zn ion coordination body (melting point: 98 ° C., MFR: 5.5 g / 10 min) of an ethylene-methacrylic acid copolymer was used as a thermoplastic resin.
(3) In the same manner as in Example 1, a resin coating layer was formed on the surface of the sheet-like core material to prepare a composite sheet (thickness: 1.25 mm).
Structure (galvanized iron plate) / composite sheet / coating material (high-density polyethylene plate) Adhesion forming construction structure as galvanized iron plate 30 (100mm x 300mm x 4.5mm) and high-density polyethylene as coating material A laminated portion is formed by sandwiching the composite sheet between plates (100 mm × 300 mm × 5 mm), and the laminated portion is integrated by subjecting the laminated portion to high frequency induction heating and pressing in the same manner as in Example 1. To be joined. However, electricity was supplied for 25 seconds, and electricity supply was stopped for 15 seconds to cool. Each of the galvanized iron plate 30 and the high-density polyethylene plate 31 and the composite sheet 1 were bonded with the adhesion strengths shown in Table 1 on the respective bonding surfaces 30a and 31a.

Example 7 (FIG. 14)
Preparation of composite sheet (1) Sheet-like core material: The ferritic stainless steel punching metal described in Example 5 was used.
(2) Resin coating layer: A sheet (thickness 0.50 mm) made of a Zn ion coordination body (melting point 95 ° C., MFR: 5.5 g / 10 min) of an ethylene-methacrylic acid copolymer was used.
(3) The metal ion coordination copolymer sheet was pressure-bonded on both surfaces of the sheet-shaped core material at 180 ° C. to prepare a composite sheet (thickness: 1.25 mm).
Formation of structure (degreasing iron plate) / composite sheet / coating material (porous tile) bonded structure Between the defatted iron plate 32 (100 mm × 300 mm × 4.5 mm) and the porous tile 33 (100 mm × 300 mm × 6 mm) The small piece (100 mm × 100 mm) of the composite sheet 1 was sandwiched, and high frequency induction heating and pressing similar to those in Example 1 were applied to the formed laminated portion to integrally bond the laminated portion. However, power was supplied for 21 seconds and power supply was stopped for 15 seconds. The adhesion strength measurement results are shown in Table 2. The degreased iron plate 32 and the composite sheet 1 are firmly bonded on the bonding surface 32a. On the bonding surface between the tile 33 and the composite sheet, the thermoplastic resin of the composite sheet is placed in the concave portion of the porous surface 33a of the tile. It penetrated and firmly adhered to both.

Example 8 (FIG. 15)
Production of Composite Sheet (1) Sheet-like core material : sintered nonwoven fabric 5 (thickness: 0.9 mm, manufactured from an aluminum-magnesium alloy wire (wire diameter: 0.15 mm, fiber length: about 50 mm), Porosity: about 40%) was used.
(2) Resin coating layer : formed of a Zn ion coordination body (melting point: 90 ° C., MFR: 14 g / 10 min) of an ethylene-methacrylic acid copolymer.
(3) The metal ion coordination copolymer was melt coated on both surfaces of the sheet-like core material by the same method as in Example 1 to prepare a composite sheet (thickness 1.20 mm).
Structure (defatted iron plate) / composite sheet / coating material (ethylene-vinyl acetate copolymer plate) formation of bonded body Degreased iron plate 32 (100 mm × 300 mm × 4.5 mm) and ethylene-vinyl acetate copolymer plate 34 (100 mm × 300 mm × 1.5 mm) is sandwiched between the composite sheet pieces (100 mm × 100 mm) to form a laminated portion, and high frequency induction heating and pressing are applied to the laminated portion in the same manner as in Example 1. The laminated parts were joined together. However, power was supplied for 15 seconds and power supply was stopped for 15 seconds. The measurement results of the adhesion strength are shown in Table 2. Each of the defatted iron plate 32 and the ethylene-vinyl acetate copolymer plate 34 was firmly bonded to the composite sheet on the bonding surfaces 33a and 34a.

Example 9 (no drawing)
Production of Composite Sheet (1) Sheet-like core material: A mesh-like woven fabric made of the aluminum-magnesium alloy wire described in Example 1 was used.
(2) Resin coating layer: As a thermoplastic resin, a resin composition having the following composition was used.
Component blending mass ratio Zn ion coordination body of ethylene-methacrylic acid copolymer (melting point: 98 ° C., MFR: 5.5 g / 10 min) 50
Polyvinyl chloride resin / polyurethane resin mixture 50
(3) The thermoplastic resin was melt coated on both surfaces of the sheet-like core material by the method described in Example 1 to prepare a composite sheet having a thickness of 1.20 mm.
Structure (defatted iron mold) / composite sheet / coating material (soft polyurethane resin plate) Adhesive forming construction Degreased iron mold (100 mm × 300 mm × 4.5 mm) and soft polyurethane resin plate (100 mm × 300 mm × 1) 5 mm), a laminated part is formed by sandwiching a small piece (100 mm × 100 mm) of the composite sheet, and the laminated part is subjected to the same high frequency induction heating and pressing as in Example 1 to form the laminated part. Were melt bonded together. However, electricity was passed for 10 seconds, and electricity was turned off for 15 seconds. The measured values of adhesion strength are shown in Table 2. The composite sheet was firmly bonded to both the iron mold and the flexible polyurethane resin plate.

Example 10 (FIG. 16)
Preparation of composite sheet (1) Sheet-like core material: A sintered nonwoven fabric made of the aluminum-magnesium alloy wire described in Example 7 was used.
(2) Resin coating layer: The following two types of thermoplastic resins were used for one side and the other side of the sheet-like core material.
(A) Zn ion coordination body of ethylene-methacrylic acid copolymer (melting point: 90 ° C., MFR: 14 g / 10 min)
(B) Mass ratio of polyvinyl chloride resin and polyurethane resin: 50:50 mixed resin (3) The thermoplastic resins (a) and (b) are separately melt-coated on one surface of the sheet-like core material, A composite sheet (thickness 1.2 mm) was produced.
Structure (defatted iron plate formwork) / composite sheet / coating material (soft polyvinyl chloride resin-coated polyester fabric waterproof sheet) Adhesive formation construction Degreased iron formwork 35 (structure, 100 mm x 300 mm x 4.5 mm) The waterproof sheet 36 (coating material, 100 mm × 300 mm × 1.5 mm) made of a polyester fiber fabric in which the thermoplastic resin (a) coating surface of the composite sheet abuts and is coated with a soft polyvinyl chloride resin containing a liquid plasticizer ), The composite sheet is disposed between the structure and the coating material so that the thermoplastic resin (b) of the composite sheet contacts, and a laminated portion is formed, and the same high frequency as in Example 1 is formed in this laminated portion. Induction heating and pressing were performed to bond the laminated portions together. However, power was supplied for 10 seconds and power supply was stopped for 15 seconds. The adhesion strength measurement results are shown in Table 2. The iron mold frame 35 is firmly bonded to the composite sheet at the bonding surface 35a, and the waterproof sheet 36 has the thermoplastic resin (b) layer and the resin permeation area 36a of the composite sheet at the bonding surface. Although formed and adhered, the waterproof sheet layer was broken in the adhesion strength measurement.

Example 11 (FIG. 17)
Production of Composite Sheet (1) Sheet-like Core Material: The aluminum-magnesium alloy wire mesh-like woven fabric described in Example 1 was used.
(2) Resin coating layer: The Zn ion coordination body of the ethylene-methacrylic acid copolymer described in Example 1 was used.
(3) The metal ion coordination copolymer was melt-coated on both surfaces of the sheet-like core material to prepare a composite sheet having a thickness of 1.15 mm.
Structure (galvanium-plated iron formwork) / composite sheet / coating material (three-dimensional knitted fabric laminated on glass fiber reinforced unsaturated polyester resin plate) Adhesive formation construction Galvanium-plated iron formwork (100 mm × 300 mm × 4.5 mm), a glass fiber reinforced unsaturated polyester resin plate, and a covering material (100 mm × 300 mm × 4 mm) on which a pile-like raised knitted fabric made of polyester fiber is laminated and integrated, A laminated part was formed by sandwiching a small piece (100 mm × 100 mm) of the composite sheet, and the laminated part was bonded integrally by applying high-frequency induction heating and pressing in the same manner as in Example 1. However, power was supplied for 20 seconds and power supply was stopped for 15 seconds. The measurement results of the adhesion strength are shown in Table 2. High adhesion strength was shown.

  In Examples 1 to 11, the composite sheet of the present invention is a civil engineering / building structure constituting article made of a wide range of materials such as metal, concrete, wood, ceramics, and synthetic resins. Concrete, wood, ceramics, wood, Using a coating material made of a wide range of non-conductivity such as a synthetic resin, it is confirmed that the coating is firmly adhered.

Example 12 (FIG. 18)
The coating of the structure according to the method of the present invention was applied as follows. In FIG. 18, the composite sheet 52 used in Example 1 is arranged at a predetermined position on the surface of the covering adhesion target object 51 made of the concrete structure used in Example 1 of the structure 50, and then the implementation is performed thereon. The covering material 53 made of the plywood used in Example 1 was arranged, and the filler made of the composite sheet 1 was filled in the space between the surface of the covering adhesion target object 51 and the covering material. The adapter 58 of the high-frequency induction heater used in Example 1 is pressed against the portion where the covering adhesion target object 51, the composite sheet 52, and the covering material 53 are laminated, and energized for 15 seconds, and the energization is stopped for 15 seconds. And cooled.
Construction was performed smoothly, and the covering adhesion target object 51 and the covering material 53 were firmly bonded via the composite sheet 52.

Example 13 (FIGS. 19 and 20)
The coating of the structure according to the method of the present invention was performed as follows. FIG. 19 is a cross-sectional explanatory view of the construction portion, and FIG. 20 is a plan explanatory view thereof. 19 and 20, the iron mold 56 used in Example 8 was fixed to a predetermined position of the concrete surface member 55 of the structure 50 by anchor bolts 57 (not shown in FIG. 20). The composite sheet 52 described in Example 8 is disposed at a predetermined position of the iron mold 56, and a coating material (not illustrated in FIG. 20) made of the ethylene-vinyl acetate copolymer plate described in Example 8 is disposed thereon. No). The adapter of the high frequency induction heater described in Example 1 was pressed against the laminated portion where the composite sheet 52 was placed, and was energized for 15 seconds. The energization was stopped for 15 seconds and cooled. The coating adhesion operation was performed smoothly, and the coating material could be firmly adhered and fixed on the iron mold.
In the same construction test as above, the concrete surface member was replaced with iron, wood, earth structure, etc., but the construction was performed smoothly, and the coating material was firmly attached to the iron formwork by the composite sheet. Adhesive fixed to.

  The composite sheet of the present invention is made of a coating material made of a non-conductive substance on the surface of a covering object made of various materials for civil engineering and building structures, using high-frequency induction heat generation, easily and quickly. In the construction method of the present invention, the composite material of the present invention can be used to apply a coating material to a material to be coated in a simple, reliable and safe manner within a short time. The structure can be firmly bonded, and the structure can be provided with desired aesthetics, waterproofness, water shielding, chemical resistance, weather resistance, smoothness, antifouling property, acceleration of removing dirt, and the like. Therefore, the composite sheet of the present invention and the construction method using the composite sheet are practically useful for imparting desired characteristics to civil engineering and building structures.

1 Composite sheet 2 Sheet core material (mesh woven fabric)
2a Diameter yarn 2b Weft 2c Void space 3 Resin coating layer 4 Sheet-like core material (porous sheet)
4a Through-hole 5 Sheet-like core material (nonwoven fabric)
5a Fiber 5b Cavity 21 Structure / Composite Sheet / Coating Material Adhesive 22 Structure Porous Covering Adhesive Object (Concrete)
22a Porous surface 23 Porous coating material (plywood)
23a Porous surface 24 Coating material (synthetic wood)
24a Resin melt mixing zone 25 Structure (synthetic wood)
26 Resin melt mixing zone 27 Coating material (synthetic resin plate)
27a Resin melt mixing zone 28 Coating material (synthetic wood)
28a Adhesive surface 29 Structure (resin concrete)
29a Bonding surface 30 Structure (galvanized iron plate)
30a Adhesive surface 31 Coating material (high-density polyethylene plate)
31a Adhesive surface 32 Structure (degreasing iron plate)
32a Adhesive surface 33 Coating material (porous tile)
33a Porous surface 34 Coating material (ethylene-vinyl acetate copolymer plate)
34a Adhesive surface 35 Structure (iron formwork)
35a Adhesive surface 36 Coating material (waterproof polyester fabric)
36a Resin penetration area 37 Structure (galvanium plated iron formwork)
37a Adhesive surface 38 Coating material (knitted / unsaturated polyester composite board)
38a Solid Knitted Layer 38b Glass Fiber Reinforced Unsaturated Polyester Resin Laminate 50 Structure 51 Structure Covered Object 52 Composite Sheet 53 Cover Material 54 Filler 55 Structure Surface Member 56 Metal Frame 57 Anchor Bolt 58 High Frequency Induction Heating Machine adapter

Claims (8)

A sheet-like core material made of a high-frequency induction heat-generating metal, and a resin coating layer containing a thermoplastic resin as a main component and covering at least one surface of the sheet-like core material,
When the thermoplastic resin for the resin coating layer is melted, the sheet-like core material has a porous structure that allows the resin melt to enter and fill,
The civil engineering / building structure characterized in that the thermoplastic resin for a resin coating layer contains at least one metal ion coordination body of an ethylene-ethylenically unsaturated carboxylic acid copolymer as its main component. Composite sheet for coating adhesion method.   The composite sheet according to claim 1, wherein the high-frequency induction heat-generating metal for sheet-like core material is at least one selected from iron, iron alloy, aluminum, aluminum alloy, copper, and copper alloy.   2. The composite sheet according to claim 1, wherein the sheet-shaped core material has at least one type of structure selected from a mesh-shaped woven or knitted fabric, a sheet having a plurality of through holes formed apart from each other, and a nonwoven fabric. . The metal ion coordination body of the ethylene-ethylenically unsaturated carboxylic acid copolymer for the resin coating layer,
Ethylene monomer,
A copolymer of at least one monomer selected from acrylic acid, methacrylic acid, fumaric acid, maleic acid, maleic acid monoalkyl ester, and maleic anhydride, by a metal ion having a monovalent to trivalent charge. The composite sheet according to claim 1, which is selected from coordination bodies.   The composite sheet according to claim 1, wherein both sides of the sheet-like core material are covered with the resin coating layer, and the double-sided resin coating layer is continuous through a porous structure of the sheet-like core material. The cover sheet for civil engineering / building structure covering bonding method according to any one of claims 1 to 5 is arranged on a covering bonding target surface of the civil engineering / building structure, and a non-conductive covering thereon. While placing the material and pressing with a high-frequency induction heater through the non-conductive coating material, the sheet-like core material made of a high-frequency induction heat-generating metal in the composite sheet is heated to generate heat in the composite sheet. A non-conductive covering material is bonded and fixed to the surface of the covering object to be bonded by using the thermoplastic resin melt.   The construction method according to claim 6, wherein the covering adhesion target object includes one or more selected from metal, concrete, wood, ceramics, and synthetic resin.   The construction method according to claim 6, wherein the non-conductive coating material is an article including one or more selected from concrete, wood, ceramics, and non-conductive synthetic resin.