JP2010265589A - Heat insulating and sound insulating structure of roof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat insulating and sound insulating structure of a roof, excelling in a heat insulating property and sound insulating property in spite of its lightweight and thin thickness. <P>SOLUTION: A spacer 2 provided with a plurality of recesses 2A is disposed on the lower side of a roof board 1, and a porous backing material 3 is disposed on the lower side of the spacer 2 for the heat insulating and sound insulating structure of the roof. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a heat insulating sound insulation structure for a roof of a building or a vehicle.

The roof is required to be provided with sound insulation means for blocking rain noise and heat insulation means for not transferring the heat of the roof to the room.
Conventionally, as the sound insulation and / or heat insulation means, means for interposing a synthetic resin foam sheet or fiber sheet between the roof material and the base material, means for bonding the roof material and the base material with a vibration damping adhesive Means for interposing an elastic sheet such as an asphalt sheet or a rubber asphalt sheet between the roof material and the base material are provided.

JP 2001-173164 A JP 2000-64512 A Japanese Patent Laying-Open No. 2005-9205 JP 2000-8737 A

  In the above conventional sound insulation and / or heat insulation means, in order to obtain sufficient sound insulation and / or heat insulation, a synthetic resin foam sheet, fiber sheet, asphalt sheet, rubber asphalt sheet, or vibration damping adhesive layer It is necessary to increase the thickness, and increasing the thickness of the heat insulation sound insulation means in this way leads to an increase in material cost, and further increases the mass of the heat insulation sound insulation means, and the strength of the roof and the vehicle Adversely affects fuel consumption. Further, on the roof, the space for mounting the sound insulation and / or heat insulation means is narrow, and it is very difficult to increase the thickness of the heat insulation sound insulation means also in this respect.

An object of the present invention is to solve the above-mentioned conventional problems and to provide a heat insulating sound insulation structure for a roof that can provide a good heat insulating sound insulating effect even if the thickness of the heat insulating sound insulating means on the roof is reduced. The roof 2 is provided with a heat insulating sound insulation structure in which a spacer 2 having a plurality of recesses is disposed below the roof plate 1 and a porous base material 3 is disposed below the spacer 2.
In the heat insulating sound insulation structure of the roof, a paper material 4 having a ventilation resistance of 0.06 to 3.0 kPa · s / m may be interposed between the spacer 2 and the porous base material 3. A porous sheet or a porous mat 5 may be interposed between the roof plate 1 and the spacer 2.
Generally, the spacer 2 has a configuration in which a plurality of recesses are formed in a thermoplastic resin sheet by vacuum and / or pressure forming.

[Action]
In the configuration of the present invention, an air layer is provided between the roof plate 1 and the porous base material 3 by the plurality of recesses 2 </ b> A of the spacer 2. Noises (sound waves) such as rain sound and wind noise generated from the roof plate 1 enter the recesses 2A of the spacer 2, but the sound waves attenuate energy by being reflected on the peripheral walls of the recesses 2A of the spacer 2. To be harassed. The sound wave with the energy attenuated reaches the porous base material 3 and is absorbed by the porous base material 3.
Moreover, in the structure of this invention, the air layer provided between the roof board 1 and the porous base material 3 by the some recessed part 2A of the said spacer 2 becomes a so-called heat insulating material. The heat conduction between 1 and the porous base material 3 is interrupted.
Further, the porous base material 3 has heat insulating properties and sound absorbing properties depending on the air contained therein.

  Here, when the paper material 4 having a ventilation resistance of 0.06 to 3.0 kPa · s / m is disposed below the spacer 2, the paper material 4 has excellent sound absorbing properties. The sound wave whose energy is attenuated by passing through is further effectively absorbed by the paper material 4. Further, since the paper material 4 also has an endothermic action, heat is absorbed by the paper material 4.

  Further, when a porous sheet (mat) 5 is filled between the roof plate 1 and the spacer 2, it is effective that sound waves resonate in the space between the roof plate 1 and the spacer 2. The heat from the roof plate 1 can also be absorbed by the porous sheet (mat) 5.

〔effect〕
Therefore, since the heat insulation sound insulation structure of this invention has the outstanding heat insulation sound insulation effect, thickness can be made thin and weight reduction can also be implement | achieved accordingly.

The front side perspective view of the spacer 2 which provided the some square cylindrical recessed part 2A. The back side perspective view of spacer 2. FIG. Sectional drawing of the spacer 2. FIG. The back side perspective view of the spacer which provided the through-hole 2B in the bottom part of 2 A of square cylindrical recessed parts. The perspective view of the spacer which provided the some hexagonal cylindrical recessed part. The perspective view of a corrugated spacer. The perspective view of a lattice-shaped spacer. The perspective view explaining the assembly of a lattice-like spacer. Sectional drawing which shows the heat insulation sound insulation structure 10 of the roof of this invention. Sectional drawing which shows the heat insulation sound insulation structure 11 of the roof of this invention. Sectional drawing which shows the heat insulation sound insulation structure 12 of the roof of this invention. Sectional drawing which shows the heat insulation sound insulation structure 13 of the roof of this invention. Schematic explaining the measuring method of ventilation resistance. Schematic explaining the measuring method of an adiabatic test.

[Roofboard]
The roof plate 1 of the present invention is made of a known metal such as a steel plate, a galvanized steel plate, a stainless steel plate, an aluminum steel plate, a copper plate, a copper alloy plate, etc., for example, a polypropylene plate, a polystyrene plate, a polyvinyl chloride plate, for example. Made of hard plastic such as acrylonitrile-butadiene-styrene copolymer (ABS) plate, polyphenylene ether (PPE) plate, wood board, hard board, particle board, etc., gypsum board, magnesium carbonate board, silicic acid Those made of inorganic materials such as calcium plate, alumina plate, and ceramic plate also belong to the category of the roof plate of the present invention. Moreover, the coating material may be apply | coated to these surfaces from rust prevention or the design.

〔spacer〕
The spacer 2 of the present invention is mainly made of a thermoplastic resin.
As the thermoplastic resin used for the spacer 2 of the present invention, the following thermoplastics are used. That is, polystyrene (PS), polyethylene (PE), polypropylene (PP), acrylonitrile-styrene copolymer (AS), acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-ethylene-styrene copolymer (AES) , Polymethyl methacrylate (PMMA), ethylene-propylene copolymer (EPR), polyvinyl chloride (PVC), vinylidene chloride copolymer, ethylene-vinyl acetate copolymer, and the like. The polypropylene may be polypropylene (modified PP) modified with PE and / or EPR. Moreover, you may use the polymer alloy or polymer blend containing 2 or more types of the said thermoplastic resin.
Alternatively, a biodegradable resin made from polylactic acid obtained from starch such as corn or sugar cane may be used as the thermoplastic resin.

Desirable as the thermoplastic resin used for the spacer 2 is PP or modified PP in consideration of vacuum and / or compressed air moldability. In particular, the modified PP has desirable vacuum and / or compressed air moldability. It is a material that is easy to deep-draw.
In the modified PP, the PE is a high density PE with a density of 0.941 or more, a medium density PE with a density of 0.926 to 0.940, a low density PE with a density of 0.910 to 0.925, and a density of 0. .909 or less ultra-low density PE can be used, but it is preferable to use a low-density PE that has good miscibility with PP and has a large effect of improving elongation.
The above EPR includes ethylene-propylene rubbery copolymer (hereinafter abbreviated as EPM), ethylene, propylene, and ethylene-propylene-diene copolymerized with diene components such as dicyclopentadiene, ethylidene norbornene, and 1,4-hexadiene. Any of terpolymers (hereinafter abbreviated as EPDM) is used.

In the modified PP, PE and / or EPR are blended in the PP in the range of 5 to 30% by mass. When the blending amount of PE and / or EPR is less than 5% by mass, the elongation of PP is not sufficiently improved, and good moldability cannot be obtained. On the other hand, if the blending amount of PE and / or EPR exceeds 30% by mass, the hardness of the resulting modified PP is insufficient, and the shape and dimensional stability and heat resistance deteriorate.
The modified PP may be mixed with one or more thermoplastic resins such as vinyl chloride resin, acrylic resin, methacrylate resin, vinylidene chloride resin, vinyl propionate resin, and polyester resin as necessary. May be.
The above-mentioned modified PP is usually made into a sheet, but on one or both sides of the modified PP sheet, PE, unmodified PP, EPR, polyolefin such as ethylene-vinyl acetate copolymer, vinyl chloride resin, acrylic resin A film of a thermoplastic resin such as a methacrylate resin, a vinylidene chloride resin, a styrene resin, a vinyl propionate resin, a styrene-butadiene copolymer, a polyester resin, or a foam film of the thermoplastic resin. May be. Unmodified PP is a desirable film from the viewpoint of interlayer adhesion and heat resistance. In the case of the above-described coating, when an inorganic filler is added to and mixed with the modified PP, the smoothness of the surface of the core material is ensured and the chemical resistance is improved.

  In addition to the modified PP, a desirable thermoplastic resin for the spacer 2 of the present invention is a polymer alloy of engineering plastic. In particular, when used in a heat insulating sound insulation structure having a roofing material 1 exposed to direct sunlight as a constituent element, it is preferable to use a heat-resistant thermoplastic resin, and engineering as such a heat-resistant thermoplastic resin Plastic is preferred. As the engineering plastic, engineering plastic alone, engineering plastic and thermoplastic plastic such as the modified PP, or polymer alloy of engineering plastic and thermoplastic resin other than engineering plastic or engineering plastic and thermoplastic resin other than engineering plastic And a polymer alloy of rubbery substance may be used. Examples of the rubber-like substance include natural rubber, synthetic rubber, and thermoplastic elastomer.

  Examples of the engineering plastic include polyamide (PA), polyester (PE), polyacetal (POM), polycarbonate (PC), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polysulfone (PSF), polyethersulfone ( PES), polyphenylene ether (PPE), modified polyphenylene ether (modified PPE), polyphenylene sulfide (PPS), polyarylate (PAR), polyetheretherketone (PEEK), polyamideimide (PAI), polyimide (PI), polyether Thermoplastic engineering plastics such as imide (PEI), polyamino bismaleimide, methylpentene copolymer (TPX), cellulose acetate (CA), Liquid crystalline engineering plastics such as allyl ether, compression moldable engineering plastics such as fluororesin such as polytetrafluoroethylene (PTFE), crystalline polyesters such as crystalline polyethylene terephthalate and crystalline polybutylene terephthalate, syndiotactic polystyrene and iso Desirably, engineering plastics having a melting point of 200 ° C. or higher, such as stereoregular polystyrene such as tactic polystyrene, can be used. These engineering plastics are used alone or in combination of two or more.

  The modified PPE refers to PPE with styrene, α-methylstyrene, α-ethylstyrene, α-methylvinyltoluene, α-methyldialkylstyrene, o-, m- or p-vinyltoluene, o-ethylstyrene, p. -Ethylstyrene, 2,4-dimethylstyrene, o-chlorostyrene, p-chlorostyrene, o-bromostyrene, 2,4-dichlorostyrene, 2-chloro-4-methylstyrene, 2,6-dichlorostyrene, vinyl Graft polymerization of styrene monomers such as naphthalene and vinylanthracene, or polymer alloying by mixing styrene resins such as polystyrene, styrene-acrylonitrile resin, acrylonitrile-butadiene-styrene resin (ABS), high impact polystyrene (HIPS), etc. It is what.

  When the spacer 2 of the present invention is composed of a polymer alloy of the engineering plastic and a thermoplastic resin other than the engineering plastic, examples of the thermoplastic resin used in the polymer alloy include polyethylene, polypropylene, and an ethylene-propylene copolymer. , Polyolefin resins such as ethylene-vinyl acetate copolymer, polystyrene resins such as polystyrene, styrene-acrylonitrile resin, acrylonitrile-butadiene-styrene resin, polycaprolactam (nylon 6), polyhexamethylene adipamide (nylon 66) And polyamide resins such as polyhexamethylene sebacamide (nylon 610), polyundeca 1 lactam (nylon 11), polydodeca 1 lactam (nylon 12), etc., and their thermoplasticity Butter is used alone or in combination of two or more.

Furthermore, a compatibilizing agent may be added to the polymer alloy for the purpose of improving the compatibility of each component.
Since the compatibilizing agent is composed of a compound having affinity for each component of the polymer alloy, the mixing state of each component in the polymer alloy is made uniform through each component. Accordingly, the characteristics of each component are effectively exhibited, and the material has extremely good heat resistance and moldability, and a core material having a complicated shape can be easily manufactured by vacuum forming or the like.
For example, as a compatibilizing agent for an aromatic engineering plastic such as PPE, modified PPE, or PPS, and a polymer alloy (including a polymer alloy including a rubbery substance) made of polyolefin such as polypropylene, for example, PPE and polypropylene may be used. Block or graft copolymer bonded by chemical bond, block or graft copolymer of polypropylene and polystyrene, block or graft copolymer of PPE and ethylene-butene copolymer, alkenyl aromatic compound (for example, styrene) A polymer obtained by hydrogenating a diblock copolymer or a triblock copolymer of a conjugated diene (for example, butadiene or isoprene) is used.
Moreover, as a compatibilizing agent of a polymer alloy (including a polymer alloy containing a rubbery substance) composed of the above aromatic engineering plastic and a polyamide resin, for example, (a) (i) an ethylenic carbon-carbon double bond or A compound containing both a carbon-carbon triple bond and; (ii) a carboxylic acid, an acid anhydride, an acid amide, an imide, a carboxylic acid ester, an amine or a hydroxyl group; (b) a liquid diene polymer; (c) an epoxy compound (D) a polycarboxylic acid or a derivative thereof; (e) an oxidized polyolefin wax; (f) an acyl functional group-containing compound; (g) a chloroepoxytriazine compound; and (h) a trialkylamine salt of maleic acid or fumaric acid. Is exemplified.
Details of the compatibilizers (a) to (h) are disclosed in JP-A-9-12497, and the compatibilizers (a) to (h) are described in US Pat. No. 4,315,086. (References to (a), (b) and (c)), US Pat. No. 4,873,286 (references to (d)), US Pat. No. 4,659,760 ((e)) References), US Pat. No. 4,642,358 and US Pat. No. 4,600,741 (references to (f)), US Pat. No. 4,895,945, US Pat. No. 5,096,979, US Pat. Nos. 5,089,566 and 5,041,504 (references to (g)), US Pat. No. 4,755,566 (( h), the literature).
The compatibilizer is usually added in an amount of 0.1 to 60% by mass relative to the polymer alloy.

  The thermoplastic resin used as the material of the spacer 2 of the present invention includes calcium carbonate, magnesium carbonate, barium sulfate, calcium sulfate, calcium sulfite, calcium phosphate, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, magnesium oxide. , Titanium oxide, iron oxide, zinc oxide, alumina, silica, diatomaceous earth, dolomite, gypsum, talc, clay, asbestos, mica, calcium silicate, bentonite, white carbon, carbon black, iron powder, aluminum powder, glass powder, stone powder In addition, one or more inorganic fillers such as blast furnace slag, fly ash, cement, and zirconia powder may be added to improve mechanical strength and heat resistance.

  Further, the thermoplastic resin includes organic fillers such as linter, linen, sisal, wood powder, palm powder, walnut powder, den flour, wheat flour, cotton, hemp, bamboo fiber, palm fiber, wool, asbestos, kenaf fiber, etc. Natural fiber, polyamide fiber, polyester fiber, polyolefin fiber, acrylic fiber, vinyl chloride fiber, vinylidene chloride fiber, etc., semi-synthetic fiber such as viscose fiber, acetate fiber, asbestos fiber, glass fiber, carbon fiber, ceramic One or more kinds of fibrous fillers such as fibers, metal fibers, and inorganic fibers such as whiskers may be added to improve shape retention, dimensional stability, compression and tensile strength, and the like. The inorganic or organic filler or fibrous filler is usually added in an amount of about 0.05 to 200% by mass relative to the thermoplastic.

  The thermoplastic resin may be colored and color-coded with pigments, dyes, etc., and further plasticizers such as DOP and DBP, antioxidants, antistatic agents, crystallization accelerators, flame retardants, flameproofing agents, insecticides Antiseptics, waxes, lubricants, stabilizers, anti-aging agents, ultraviolet absorbers, chemical foaming agents or foaming agents such as capsule type foaming agents may be added. These components may be added singly or in combination of two or more.

As the spacer 2 of the present invention, for example, as shown in FIGS. 1 and 2, a grid-like panel is used in which a plurality of bottomed rectangular tubular recesses 2A are formed and arranged vertically and horizontally. As the spacer 2, a plurality of bottomed rectangular tubular recesses 2 </ b> A are usually formed in a vertical and horizontal lattice shape by vacuum and / or pressure forming or press forming the thermoplastic resin sheet as shown in FIGS. 1 and 2. If desired, the bottom of the bottomed rectangular cylindrical recess 2A may be hollowed out by a punching die as shown in FIG. As shown in FIGS. 1 and 2, a mounting seat 2 </ b> C for attaching the porous base material 3 to a predetermined position is formed. The spacer 2 is attached to the porous base material 3 by adhesion or fusion through the mounting seat 2C, or is attached to the porous base material 3 with a fastener such as a screw or a bolt.
Usually, the thickness of the thermoplastic resin sheet is preferably 0.1 to 0.8 mm.

  Further, as shown in FIG. 4, a through hole 2 </ b> B may be hollowed out at the bottom of each bottomed square cylindrical recess 2 </ b> A of the spacer 2. In addition, those having concave portions of various shapes such as a honeycomb spacer 21 having a bottomed hexagonal cylindrical concave portion 21A as shown in FIG. 5 are used. The honeycomb-shaped porous spacer 21 having the bottomed hexagonal cylindrical recess 21A shown in FIG. 5 is also manufactured by vacuum and / or pressure forming or press forming in the same manner as the spacer 2 shown in FIG. If desired, a mounting seat 21B is also provided on the honeycomb spacer 21 having the hexagonal recess 21A.

  The spacers 2 and 21 may be manufactured by injection molding, but it is desirable to apply vacuum and / or compressed air molding for mass production.

Further, as shown in FIG. 6, a corrugated plate-like spacer 22 may be used, and in this spacer 22, a valley portion on either side corresponds to the concave portion 22A. Further, as shown in FIG. 7, a spacer 23 having a lattice-like frame may be used. In the spacer 23, the inner side of the lattice corresponds to a rectangular tube-shaped recess 23A, and a sheet 23B such as a plastic film or paper is bonded to one side in order to make the recess 23A bottomed.
In order to manufacture the spacer 23 having the lattice-like frame shown in FIG. 7, in addition to injection molding, as shown in FIG. 8, for example, a notch 23D is provided from one edge of the thermoplastic resin strip-like plate 23C. The above-mentioned plates 23C are combined with each other, and the notches 23D of one plate 23C are faced up, and the notches 23D of the other plate 23C are faced down, and the two cuts 23D and 23D are fitted together to form a lattice.

[Porous substrate]
As the porous base material 3 of the present invention, a fiber sheet or fiber mat such as a nonwoven fabric, a fiber knitted fabric, a polyurethane foam, a polyethylene foam, a polypropylene foam, a polystyrene foam, a polyvinyl chloride foam, an epoxy resin foam, Among resin foams such as melamine resin foam, urea resin foam, and phenol resin foam, a resin foam having air permeability, a sintered body of the plastic beads, and the like are used.

  When the porous base material 3 is made of a fiber sheet, examples of the fiber material used for the fiber sheet include polyester fiber, polyester fiber having a core-sheath structure, polyethylene fiber, polypropylene fiber, polyamide fiber, acrylic fiber, and urethane fiber. , Synthetic fiber such as polyvinyl chloride fiber, polyvinylidene chloride fiber, acetate fiber, natural fiber such as pulp, cotton, palm fiber, hemp fiber, bamboo fiber, kenaf fiber, glass fiber, carbon fiber, ceramic fiber, asbestos fiber, etc. 1 type or 2 types or more of recycled fibers obtained by defibrating scraps of fiber products using these fibers, such as glass fibers, carbon fibers, ceramic fibers, Inorganic fibers such as asbestos fibers and stainless fibers, polymetaphenylene isophthalamide fibers, poly-p- If heat-resistant synthetic fibers having a melting point of 250 ° C. or higher, such as aramid fibers such as enylene terephthalamide fibers, polyarylate fibers, polyether ether ketone fibers, and polyphenylene sulfide fibers, are used, a porous substrate with extremely high heat resistance Material 3 is obtained. Among them, carbon fiber is a useful inorganic fiber because it can be incinerated and is difficult to disperse fine pieces, and aramid fiber is a useful synthetic fiber because it is relatively inexpensive and easily available.

Basis weight of the porous base material 3 200~1400g / ^{m 2,} preferably set to 200 to 1000 g / ^{m 2.} The density of the porous base material 3 is set to 5 to 300 kg / m ³ , preferably 10 to 250 kg / m ³ , more preferably 20 to 200 kg / m ³ . The ventilation resistance of the porous base material 3 is preferably set to 0.03 to 5 kPa · s / m.

Here, the ventilation resistance R (Pa · s / m) is a scale representing the degree of ventilation of the breathable material. The measurement of the ventilation resistance R is performed by a steady flow differential pressure measurement method. As shown in FIG. 13, a test piece T is arranged in a cylindrical air passage W, and the pressure in the air passage W on the start point side of the arrow in the figure in a state of a constant air flow V (the direction of the arrow in the figure). By measuring the pressure difference between P1 and the end point P2 of the arrow in the figure, the ventilation resistance R can be obtained from the following equation.
R = ΔP / V
Here, ΔP (= P1−P2): Pressure difference (Pa), V: Air flow rate per unit area (m ³ / m ² · s). The ventilation resistance R (Pa · s / m) is in a relationship of air permeability C (m / Pa · s) and C = 1 / R.
The ventilation resistance can be measured by, for example, an air permeability tester (product name: KES-F8-AP1, manufactured by Kato Tech Co., Ltd., steady flow differential pressure measurement method).

  The porous base material 3 may be a laminate of two or more types such as the fiber sheet, resin foam, and sintered body. For example, as the porous base material, a laminated porous base material in which a glass fiber sheet such as a glass chopped strand mat or glass paper is laminated on one side or both sides of a resin-impregnated polyurethane foam sheet is exemplified.

[Paper]
In the heat insulation and sound insulation structure for the roof of the present invention, the porous base material 3 is disposed below the spacer 2 through a paper material 4 having a ventilation resistance of 0.06 to 3.0 kPa · s / m. May be.
What is desirable as the paper material 4 is a material made of pulp fibers moderately beaten. The desirable range of beating degree is JIS P 8121-1995 4. 4. Canadian standard freeness as specified by Canadian Standard Freeness in the range of 350-650 ml (CSF) and / or JIS P 8121-1995. The shopper freeness specified in the shopper freeness test method is in the range of 15 ° SR to 30 ° SR, and the basis weight of the fiber is in the range of 15 to 40 g / m ² .
The paper material 4 may be creped and / or embossed. When the paper material 4 is subjected to creping and / or embossing, the paper material 4 is easily stretched and the formability is improved.
A desirable crepe rate is 10 to 50%, and a desirable embossing is a projection height of 0.02 to 2.00 mm and a number of projections of 20 to 200 / cm ² .

[Synthetic resin impregnation]
The porous base material 3 and / or the paper material 4 may be coated or impregnated with a synthetic resin for the purpose of imparting rigidity and adjusting ventilation resistance. As the synthetic resin, a thermoplastic resin and / or a thermosetting resin is used.

Examples of the thermoplastic resin include acrylic acid ester resin, methacrylic acid ester resin, ionomer resin, ethylene-ethyl acrylate (EEA) resin, acrylonitrile / styrene / acrylic rubber copolymer (ASA) resin, and acrylonitrile / styrene copolymer ( AS) resin, acrylonitrile / chlorinated polyethylene / styrene copolymer (ACS) resin, ethylene / vinyl acetate copolymer (EVA) resin, ethylene / vinyl alcohol copolymer (EVOH) resin, methacrylic resin (PMMA), polybutadiene (BDR) , Polystyrene (PS), polyethylene (PE), acrylonitrile-butadiene-styrene copolymer (ABS) resin, chlorinated polyethylene (CPE), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polypropylene (PP), cellulose acetate (CA) resin, syndiotactic polystyrene (SPS), polyoxymethylene (= polyacetal) (POM), polyamide (PA), polyimide (PI), polyamideimide (PAI) , Polyetherimide (PEI), polyarylate (PAR), thermoplastic polyurethane (TPU) elastomer, thermoplastic elastomer (TPE), liquid crystal polymer (LCP), polyetheretherketone (PEEK), polysulfone (PSF), polyether Sulphone (PES), fluororesin, polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polycarbonate (PC), polyphenylene ether (PPE), modified PPE, polyphenylene sulfide ( PS), polybutylene terephthalate (PBT), poly benzoyl imidazole (PBI), wholly aromatic polyester (POB), etc. are exemplified.
The above thermoplastic resins may be used in combination of two or more, or may be used by mixing one or more of a certain amount of thermosetting resin to the extent that does not impair the thermoplasticity of the porous base material 3. Good.
The thermoplastic resin is preferably used in the form of an aqueous solution, an aqueous emulsion, or an aqueous dispersion from the viewpoint of easy handling, but may be used in the form of an organic solvent solution.

Examples of the thermosetting resin include urethane resin, melamine resin, thermosetting acrylic resin, particularly thermosetting acrylic resin that cures by forming an ester bond by heating, urea resin, phenol resin, epoxy resin, thermosetting type Polyester or the like is used, but urethane resin prepolymer, urea resin prepolymer (initial condensate), phenol resin prepolymer (initial condensate), diallyl phthalate prepolymer, acrylic oligomer, polyisocyanate that produce the synthetic resin. Synthetic resin precursors such as prepolymers such as narate, methacrylic ester monomers and diallyl phthalate monomers, oligomers and monomers may be used. The thermosetting resin is preferably used in the form of an aqueous solution, an aqueous emulsion, or an aqueous dispersion because it is easy to handle, but may be used in the form of an organic solvent solution.
Desirable as the resin used in the present invention is a phenolic resin. The phenolic resin is obtained by condensing a phenolic compound with formaldehyde and / or a formaldehyde donor.
The phenolic compound used in the phenolic resin may be a monohydric phenol, a polyhydric phenol, or a mixture of a monohydric phenol and a polyhydric phenol. When only monohydric phenol is used, formaldehyde is easily released during and after curing. Therefore, polyhydric phenol or a mixture of monohydric phenol and polyhydric phenol is preferably used.
The addition of the synthetic resin, particularly the thermosetting resin, improves both the shape retention and rigidity of the porous base material 3.

In order to impregnate the porous base material 3 or the paper material 4 with the synthetic resin, a known method such as application by a coating machine such as spray, roll coater, knife coater, curtain flow coater, dipping or the like is applied, In order to adjust the impregnation amount of the synthetic resin, a method of squeezing the porous base material 3 or the paper material 4 coated or impregnated with the synthetic resin with a squeeze roll is generally used.
After the synthetic resin is applied or impregnated to the porous base material 3 or the paper material 4, it is dried at room temperature or by heating.

[Thermal insulation sound insulation structure of the roof]
The heat insulating sound insulation structure 10 of the present invention basically comprises the spacer 2 (21, 22, 23) and a porous base material 3 bonded to the lower side of the spacer 2 (21, 22, 23). (FIG. 9).

  Furthermore, in the heat insulating sound insulation structure 11 of the present invention, a fiber sheet 6 such as a nonwoven fabric or a spunbond may be bonded to the lower side of the spacer 2 (21, 22, 23) (FIG. 10).

  Furthermore, in the heat insulation sound insulation structure 12 of the present invention, the paper material 4 may be bonded to the lower side of the spacer 2 (21, 22, 23). (FIG. 11).

  In the heat insulating sound insulation structure 13 of the present invention, a porous sheet (mat) such as a fiber sheet (mat) or a resin foam is filled between the roof plate 1 and the spacer 2 (21, 22, 23). (FIG. 12).

Adhesion between the spacer 2 (21, 22, 23) and the porous base material 3 and adhesion between the spacer 2 (21, 22, 23) and the fiber sheet 6 or the paper material 4 are performed by fusion or a breathable adhesive layer. It is desirable to do through. Moreover, you may adhere | attach partially.
The air-permeable adhesive layer is, for example, a powdered hot-melt adhesive spray layer, a web-like hot-melt adhesive layer, or a solution or emulsion hot-melt adhesive or a normal adhesive with spots or stripes. It is a discontinuous adhesive coating layer or the like applied in a shape.
When the porous sheet (mat) 5 is filled between the roof plate 1 and the spacer 2 (21, 22, 23), an adhesive is not always necessary, but the porous sheet (mat) 5 is attached to the roof. The plate and / or the spacer 2 (21, 22, 23, 24) may be bonded using an adhesive.

  Examples for describing the present invention more specifically will be described below, but the present invention is not limited to these examples.

[Example 1] (Insulation sound insulation structure)
In the heat insulation sound insulation structure 10 shown in FIG. 9, 1 is a roof board of eaves, an automobile, etc., for example, and a spacer 2 (21, 22, 23) is disposed below the roof board 1 through a slight gap S. A porous base material 3 is disposed below the spacer 2 (21, 22, 23).
As the porous base material 3, for example, a polyurethane foam, a polyethylene foam, a resin foam such as a polypropylene foam, a fiber mat, or the like is used.

[Example 2] (Insulation sound insulation structure)
In the heat insulating sound insulation structure 11 shown in FIG. 10, a fiber sheet 6 such as a nonwoven fabric or a fiber knitted fabric is bonded to the lower side of the spacer 2 (21, 22, 23), and a resin is used as the porous base material 3A. A laminate in which resin-impregnated glass fiber sheets 32A and 32A are bonded to both surfaces of a resin foam 31A such as an impregnated polyurethane foam sheet, a glass fiber-containing polyester foam sheet, and a glass fiber-containing polypropylene foam sheet is used. . The glass fiber sheets 32A and 32A are, for example, glass paper, glass chopped strand mats, and the like.
Further, a skin material 7 made of a fiber sheet such as a nonwoven fabric or a fiber knitted fabric is bonded to the lower side of the porous base material 3A.

[Example 3] (Insulation sound insulation structure)
In the heat insulation sound insulation structure 12 shown in FIG. 11, in the heat insulation sound insulation structure 10 of Example 1 shown in FIG. 9, the paper material 4 is adhere | attached on the lower side of the spacer 2 (21, 22, 23).

[Example 4] (Insulation sound insulation structure)
In the heat insulation sound insulation structure 13 shown in FIG. 12, in the heat insulation sound insulation structure 10 of Example 1 shown in FIG. 9, a resin foam and a fiber mat are provided between the roof plate 1 and the spacer 2 (21, 22, 23). A porous sheet (mat) 5 is filled.

[Example 5] (paper material)
As the paper material 4 used in Example 3, the following three types of paper materials 4A, 4B, and 4C were prepared. That is, a pulp fiber raw material composed of 90% by weight of softwood pulp and 10% by weight of hardwood pulp is beaten with a disc refiner, and the Canadian standard freeness and the shopper freeness specified by Canadian Standard Freeness are 600 ml each. CSF), 16 ° SR (A), and 450 ml (CSF), 24 ° SR (B) and 400 ml (CSF), 28 ° SR (C) pulp fiber raw materials were produced. Using each pulp fiber, paper was made so that the basis weight of each was 18 g / m ² , and paper material 4A, paper material 4B, and paper material 4C were produced.

[Example 6] (paper material)
As the paper material 4 used in Example 3, the following crepe papers 4D and 4E were prepared. That is, a pulp fiber raw material comprising 70% by mass of softwood pulp and 30% by mass of hardwood pulp was beaten with a disc refiner to a Canadian standard freeness of 430 ml (CSF) and a shopper freeness of 26 ° SR. The obtained base paper was dried by an ordinary Yankee dryer method, and paper materials 4D and 4E, which were crepe papers having a basis weight of 26 g / m ² and a crepe rate of 20% (D) and 40% (E), were produced.

[Insulation sound insulation test]
A sample having the structure shown in FIG. 9 and the structure shown in FIG. 11 is selected.
In the sample 1 shown in FIG. 9, a 1.0 mm-thick steel plate is used as the roof plate 1, and a 0.4 mm-thick polypropylene sheet vacuum-formed product having the structure shown in FIG. The length T was set to 6.0 mm, the length L of one side of the square of the through-hole cylindrical body 2A was set to 12.0 mm, and the interval between adjacent squares was set to 10.0 mm. The porous base material 3 is made of polyester fiber mixed with 30% by mass of a low melting point polyester fiber having a melting point of 150 ° C., a thickness of 5.0 mm, a basis weight of 600 g / m ² , and a ventilation resistance of 0.08 kPa · s /. m fiber sheets were selected. The spacer 2 and the porous base material 3 were partially bonded at the four corners and the center by fusion.
In the sample 2 shown in FIG. 11, the paper material 4B of Example 5 was selected as the paper material 4.
Adhesion between the porous base material 3 and the paper material 4 is a breathable adhesive layer in which a powdery polyamide-based hot melt adhesive (average particle size: 300 μm, melting point: 145 ° C.) is sprayed at a coating amount of 5 g / m ^2. The spacer 2 and the porous base material 3 were partially bonded at the four corners and the center by fusion.
Further melting point below the roof plate 1 is made of 0.99 ° C. polyester fiber low-melting polyester fibers are mixed 30 mass% of the thickness of the comparative sample 1 20.0 mm, the porous mat is the weight per unit area 1500 g / ^{m 2} Select the configuration with the arrangement, and select the configuration with a porous mat made of the same polyester fiber as the comparison sample 1 and having a thickness of 12.0 mm and a basis weight of 1000 g / m ² as the comparison sample ^2. As the comparative sample 3, a structure having only the roof plate 1 without using a heat insulating sound insulating material was selected.

[Insulation sound insulation test method]
Adiabatic sound insulation test was performed on Sample 1, Sample 2, Comparative Sample 1, Comparative Sample 2, and Comparative Sample 3 by the following test method.

[Insulation test]
Each of the obtained samples was cut into a square having a side of 500 mm, and the samples were attached to the upper part of a box-like shape made of a slate plate having a length and width of 500 mm and a height of 200 mm as shown in FIG. It heated to the temperature of 80 degreeC with the infrared lamp from the upper part of the board 1, and the temperature rise inside a box-shaped shape was measured. The outside air temperature was 23 ° C. The test results are shown in Table 1.

[Sound insulation test]
Each sample obtained was cut into a square with a side of 500 mm, mounted on a pedestal so as to have an inclination of 20 degrees, and a 100 cc water drop was dropped from a height of 500 mm to the center of the roof plate 1 per minute. The noise immediately below 100 mm of the roof plate 1 generated at that time was measured at a measurement temperature of 23 ° C. using a noise meter. In addition, the noise in the room atmosphere was measured without water drops falling. The test results are shown in Table 2.

  In the heat insulation test shown in Table 1, the temperature of the comparative samples 1 and 2 is slower than that of the comparative sample 3 having only the roof plate 1, but the samples 1 and 2 having the structure of the present invention are thinner than the comparative sample. But it turns out that a big heat insulation effect is acquired.

  Also in the sound insulation test shown in Table 2, it can be seen that Samples 1 and 2 having the structure of the present invention can obtain a high sound insulation effect even if the thickness is smaller than that of the conventional structure.

  Since the heat insulating sound insulating structure of the present invention is lightweight and has excellent heat insulating properties and sound insulating properties, the heat insulating sound insulating structure can be advantageously applied to buildings and vehicle roofs.

DESCRIPTION OF SYMBOLS 1 Roof plate 2, 21, 22, 23 Spacer 2A, 21A, 22A, 23A Recessed part 3, 3A Porous base material 4 Paper material 5 Porous sheet or porous mat 10, 11, 12, 13 Thermal insulation sound insulation structure

Claims (5)

  A heat insulating and sound insulating structure for a roof, wherein a spacer having a plurality of recesses is provided below the roof plate, and a porous base material is disposed below the spacer.   A spacer with a plurality of recesses is arranged on the lower side of the roof plate, and a porous base material is arranged on the lower side of the spacer through a paper material having a ventilation resistance of 0.06 to 3.0 kPa · s / m. Heat insulation sound insulation structure of the roof characterized by.   A heat insulating sound insulation structure for a roof, wherein a porous sheet or a porous mat is filled between a roof plate and a spacer provided with a plurality of recesses, and a porous base material is disposed below the spacer.   A porous sheet or a porous mat is filled between the roof plate and a spacer provided with a plurality of recesses, and a paper material having a ventilation resistance of 0.06 to 3.0 kPa · s / m is provided below the spacer. A heat insulating sound insulation structure for a roof, characterized in that a porous base material is arranged through the roof. The heat insulating sound insulation structure for a roof according to any one of claims 1 to 4, wherein the spacer has a configuration in which a plurality of recesses are formed in a thermoplastic resin sheet by vacuum and / or pressure forming.