JPH1018466A - Vibration-damping sound-insulating material - Google Patents
Vibration-damping sound-insulating materialInfo
- Publication number
- JPH1018466A JPH1018466A JP8171225A JP17122596A JPH1018466A JP H1018466 A JPH1018466 A JP H1018466A JP 8171225 A JP8171225 A JP 8171225A JP 17122596 A JP17122596 A JP 17122596A JP H1018466 A JPH1018466 A JP H1018466A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- powder
- vibration
- inorganic
- cast iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000013016 damping Methods 0.000 title claims abstract description 97
- 239000011810 insulating material Substances 0.000 title claims abstract description 56
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000010426 asphalt Substances 0.000 claims abstract description 57
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 53
- 239000000843 powder Substances 0.000 claims abstract description 38
- 239000002893 slag Substances 0.000 claims abstract description 32
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 56
- 229920001971 elastomer Polymers 0.000 claims description 19
- 239000005060 rubber Substances 0.000 claims description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 5
- 238000007514 turning Methods 0.000 abstract description 5
- 229910000805 Pig iron Inorganic materials 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 238000007873 sieving Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000011387 rubberized asphalt concrete Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 23
- 238000009413 insulation Methods 0.000 description 18
- 238000000465 moulding Methods 0.000 description 16
- 238000004898 kneading Methods 0.000 description 13
- 238000002156 mixing Methods 0.000 description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 12
- -1 polyethylene Polymers 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000013329 compounding Methods 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000007123 defense Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000003981 vehicle Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000010960 cold rolled steel Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000464 lead oxide Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 230000000051 modifying effect Effects 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 235000015112 vegetable and seed oil Nutrition 0.000 description 2
- 239000003190 viscoelastic substance Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000005639 Lauric acid Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010692 aromatic oil Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical class C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical class C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- BXOUVIIITJXIKB-UHFFFAOYSA-N ethene;styrene Chemical group C=C.C=CC1=CC=CC=C1 BXOUVIIITJXIKB-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000005332 obsidian Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002847 sound insulator Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
- 235000019871 vegetable fat Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229940006076 viscoelastic substance Drugs 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Building Environments (AREA)
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、建築物、自動車、
鉄道車両、船舶、産業用機器など騒音対策が必要な部
位、特に建築物の壁、床等に用いられる制振性と遮音性
を兼ね備えた制振遮音材に関する。TECHNICAL FIELD The present invention relates to a building, an automobile,
The present invention relates to a vibration-damping and sound-insulating material having both a noise-damping property and a sound-insulating property, which is used for a part such as a railway vehicle, a ship, and an industrial device that requires noise countermeasures, particularly for a building wall or floor.
【０００２】[0002]
【従来の技術】近年、自動車、鉄道車両、航空機などの
交通騒音、工場、工事現場からの騒音、ステレオ、カラ
オケ、ピアノ等からの騒音、住宅の中で生じる床騒音な
どが社会問題となっている。これら騒音問題の対策とし
て吸音材、遮音材、制振材と称する防音材料が用いられ
ている。2. Description of the Related Art In recent years, traffic noises of automobiles, railway vehicles, aircrafts, etc., noises from factories and construction sites, noises from stereos, karaokes, pianos, etc., and floor noises generated in houses have become social problems. I have. As a countermeasure against these noise problems, sound-absorbing materials, sound-insulating materials, and sound-insulating materials called damping materials are used.
【０００３】遮音材は、入射した音波のエネルギ−を透
過させない材料で、入射した音波のエネルギ−を反射さ
せる場合が多い。遮音材の遮音性能は、質量則により概
ね決定され、質量の大きな材料ほど遮音効果が大きい。
入射波がランダム入射の場合の遮音性能は次の式で推定
できる。A sound insulating material is a material that does not transmit the energy of incident sound waves, and often reflects the energy of incident sound waves. The sound insulation performance of a sound insulation material is generally determined by the mass rule, and the larger the mass of a material, the greater the sound insulation effect.
The sound insulation performance when the incident wave is randomly incident can be estimated by the following equation.
【０００４】ＴＬ＝18・log （ｆ・ｍ）−44 ここで、ＴＬ；透過損失(dB)、ｆ；周波数(Hz)、ｍ；面
密度( kg/m2 ) を示す。即ち、面密度つまり単位面積当
たりの重量が大きいものほど遮音性能（透過損失）が大
きくなる。このため、遮音材としては比重の大きな材
料、例えば鉛板、鋼板、高比重物質を高分子材料と混合
してシ−ト状に成形した物などがある。TL = 18 · log (f · m) −44 Here, TL: transmission loss (dB), f: frequency (Hz), m: areal density (kg / m 2 ). That is, the greater the surface density, that is, the weight per unit area, the greater the sound insulation performance (transmission loss). For this reason, as a sound insulating material, a material having a large specific gravity, for example, a lead plate, a steel plate, a material formed by mixing a high specific gravity substance with a polymer material and forming the mixture into a sheet shape is used.
【０００５】例えば、特公昭57-32951号公報には、ポリ
塩化ビニル樹脂に鉄粉、硫酸バリウムを配合した可とう
性遮音シ−ト、特公昭57-39262号公報には、ポリ塩化ビ
ニルに酸化ジルコニウム及び珪酸ジルコニウムを配合し
た遮音用組成物、特公昭61-50496号公報には、塩化ビニ
ル系樹脂に鉄鉱石粉を配合した軟質塩化ビニル系防音シ
−ト、特公昭62-19384号公報には、塩化ビニル系樹脂に
製鋼スラグ粉末を配合した軟質塩化ビニル系防音材、特
公平 1-22213号公報には、塩化ビニル系樹脂に酸化鉄粉
末、三酸化アンチモン、ホウ酸塩を配合した難燃性遮音
成形体、特公平1-25777 号公報には、塩化ビニル系樹脂
に、製鋼スラグと粉末状鉛化合物を配合した防火性を有
する高比重遮音材など、ポリ塩化ビニル樹脂に高比重化
合物を配合したものが開示されている。また特開昭60-7
9065号公報には、アスファルトに金属、金属酸化物、金
属塩、無機充填剤を配合した防音用アスファルト組成
物、特公平4-60064 号公報には、エチレン酢酸ビニル共
重合体に製鋼スラグを配合した柔軟性遮音材なども開示
されている。For example, Japanese Patent Publication No. 57-32951 discloses a flexible sound insulation sheet in which iron powder and barium sulfate are mixed with a polyvinyl chloride resin, and Japanese Patent Publication No. 57-39262 discloses a polyvinyl chloride resin. JP-B-61-50496 discloses a sound-insulating composition containing zirconium oxide and zirconium silicate, and a soft vinyl chloride sound-insulating sheet comprising iron ore powder mixed with a vinyl chloride resin. Is a soft vinyl chloride-based soundproofing material in which steelmaking slag powder is blended with a vinyl chloride-based resin, and Japanese Patent Publication No. 1-22213 discloses the difficulties in blending iron oxide powder, antimony trioxide, and borate with a vinyl chloride-based resin. Japanese Patent Publication No. 1-25777 discloses a high-density compound for polyvinyl chloride resin, such as a fire-resistant high-density sound-insulating material that combines steelmaking slag and a powdered lead compound with a vinyl chloride resin. Is disclosed. . Also, JP-A-60-7
No. 9065 discloses a soundproofing asphalt composition in which metal, metal oxide, metal salt and inorganic filler are blended into asphalt.Japanese Patent Publication No. 4-60064 discloses a steelmaking slag blended with an ethylene vinyl acetate copolymer. Also disclosed are flexible sound insulation materials.
【０００６】これらの遮音材は、例えば建築物の壁、床
などに適用した場合、室内外の騒音が空気中を伝播して
伝わる音（空気伝播音）の低減に対して有効である。し
かし、例えば子供が飛び跳ねるなど床面に直接作用し、
建築物の躯体を通して伝わる音（固体伝播音）の低減に
対しては必ずしも有効とは言えない。[0006] When these sound insulating materials are applied to, for example, walls and floors of buildings, they are effective in reducing the noise (air-borne sound) transmitted from indoor and outdoor noises in the air. However, it acts directly on the floor, for example, when a child jumps,
It is not always effective in reducing the sound transmitted through the building body (solid-borne sound).
【０００７】一方、制振材は、固体中を伝播してきた振
動エネルギ−を吸収し、一部を摩擦抵抗などによる熱エ
ネルギ−として消滅させ、振動に伴い発生する音を低減
させる材料である。制振材には、合成ゴム、合成樹脂な
どと例えばマイカ、鉛箔、鉛繊維、アルミ箔等を混合し
シ−ト状に成形したもの、鋼板等金属板に塗布して用い
るアスファルトや合成樹脂系制振塗料、合成ゴム、合成
樹脂など粘弾性物質を２枚の金属板の間にサンドイッチ
した制振鋼板等の制振金属板、さらにＭｎ−Ｃｕ系、Ｆ
ｅ−Ｃｒ系などの制振合金がある。このように制振材に
関しては多くの技術が開示されている。On the other hand, a vibration damping material is a material that absorbs vibration energy that has propagated through a solid, partially disappears as heat energy due to frictional resistance or the like, and reduces noise generated by vibration. Examples of the vibration damping material include synthetic rubber, synthetic resin, and the like mixed with mica, lead foil, lead fiber, aluminum foil, and the like, formed into a sheet, asphalt and synthetic resin applied to a metal plate such as a steel plate. Vibration damping metal plates such as vibration damping steel plates in which a viscoelastic substance such as a vibration damping paint, synthetic rubber, and synthetic resin is sandwiched between two metal plates;
There are damping alloys such as e-Cr type. As described above, many techniques have been disclosed for the vibration damping material.
【０００８】例えば、特公平4-23141 号公報には、ポリ
塩化ビニル樹脂に針状結晶性無機物（ゾノライト、チタ
ン酸カリウム）を配合した樹脂−無機物複合系制振材、
特公昭54-8497 号公報には、熱硬化性樹脂、ゴム状物
質、熱可塑性樹脂に鱗片状無機充填剤（マイカ）を配合
した耐熱性制振材組成物、特開平2-194057号公報には、
アスファルトに中空状充填材（ガラスバル−ン、シラス
バル−ン等）と表面処理炭酸カルシウムを配合したシ−
ト状軽量制振材などが開示されている。For example, Japanese Patent Publication No. Hei 4-21314 discloses a resin-inorganic composite vibration damping material in which a needle-like crystalline inorganic substance (zonolite, potassium titanate) is blended with a polyvinyl chloride resin.
Japanese Patent Publication No. 54-8497 discloses a heat-resistant vibration damping composition comprising a thermosetting resin, a rubbery substance, and a thermoplastic resin mixed with a scaly inorganic filler (mica). Is
A blend of asphalt with a hollow filler (glass balloon, shirasu balloon, etc.) and surface-treated calcium carbonate
A light-weight vibration damping material in the shape of a triangle is disclosed.
【０００９】これらの制振材は、例えば建築物の壁、床
などに適用した場合、子供が飛び跳ねるなど床面に直接
作用し、建築物躯体を通して伝わる音（固体伝播音）の
低減に対して有効である。しかし、室内外の騒音が空気
中を伝播して伝わる音（空気伝播音）の低減に対しては
必ずしも有効とは言えない。When these damping materials are applied to, for example, the walls and floors of a building, they act directly on the floor surface, such as a child jumping, to reduce sound transmitted through the building body (solid sound). It is valid. However, it is not necessarily effective in reducing the sound (air propagation sound) in which indoor and outdoor noise propagates in the air.
【００１０】そこで、制振性と遮音性を兼ね備えた制振
遮音材として特公昭54-17343号公報には、熱可塑性樹脂
に金属鉛、鉛酸化物を配合した防音性及び防振性に優れ
た成形用組成物が提案されている。しかし鉛は高価であ
り、製造工程および廃棄に際して鉛公害を引き起こすこ
とがあり好ましくない。Therefore, Japanese Patent Publication No. 54-17343 discloses a vibration damping and sound insulating material having both vibration damping properties and sound insulating properties, which is excellent in sound insulating properties and vibration damping properties obtained by blending metallic lead and lead oxide in a thermoplastic resin. Molding compositions have been proposed. However, lead is expensive and undesirably causes lead pollution during the manufacturing process and disposal.
【００１１】特開平6-250669号公報には、厚さ0.1mm の
アルミニウム板と塩化ビニル樹脂に鋳鉄粉末を混合、成
形したシ−トを加圧成形した二重構造の防音用被覆材が
開示されている。しかし、鋳鉄粉末（300 メッシュ）が
粉体であり、比較例の酸化鉄粉末に対し格段に制振性、
遮音性が高いとは言えない。Japanese Unexamined Patent Publication No. Hei 6-250669 discloses a double-layered soundproofing covering material obtained by mixing a cast iron powder with a 0.1 mm-thick aluminum plate and a vinyl chloride resin and press-molding a sheet. Have been. However, the cast iron powder (300 mesh) is a powder, which is much less damping than the iron oxide powder of the comparative example.
It cannot be said that the sound insulation is high.
【００１２】また特公平4-65777 号公報には、アスファ
ルトに転炉風砕スラグを配合した制振遮音シ−トが開示
されている。しかし、転炉風砕スラグは、比重が金属鉄
粉、酸化鉄粉等に比べ低いため、面密度を大きくするた
めには一般的に肉厚とすることが必要となる。Japanese Patent Publication No. 4-65777 discloses a vibration-damping and sound-insulating sheet in which converter blast slag is mixed with asphalt. However, the converter blast slag has a specific gravity lower than that of metallic iron powder, iron oxide powder, or the like. Therefore, it is generally necessary to increase the wall thickness in order to increase the areal density.
【００１３】[0013]
【発明が解決しようとする課題】本発明者らは、上記の
ような問題点を解決するために、銑ダライ粉を粉砕する
過程で副生する鱗片状鋳鉄粉（100 〜60メッシュ以上20
〜10メッシュ以下）をゴムアスファルトに含有させた制
振遮音材を既に出願（特願平7-19398 号）している。本
発明は、上記のような問題点を解決し、本発明者らが既
に出願した発明をさらに改良したもので、制振性、遮音
性の両方に優れ、空気伝播音及び固体伝播音の低減に対
して有効な制振遮音材を提供することを目的とする。さ
らに本発明は、鉛系制振遮音材に比べて安価であり、製
造工程及び廃棄に際して公害を引き起こすことがない制
振遮音材を提供することを目的とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present inventors have proposed a scaly cast iron powder (100 to 60 mesh or more, 20 by
We have already filed a patent application (Japanese Patent Application No. 7-19398) for a vibration-damping and sound-insulating material that contains rubber asphalt (up to 10 mesh or less). The present invention solves the above-mentioned problems and further improves the invention already filed by the present inventors, and is excellent in both vibration damping and sound insulation, and reduces airborne sound and solidborne sound. It is an object to provide an effective vibration damping and sound insulating material. A further object of the present invention is to provide a vibration-damping and sound-insulating material that is less expensive than a lead-based vibration-damping and sound-insulating material and does not cause pollution during the manufacturing process and disposal.
【００１４】[0014]
【課題を解決するための手段】本発明者らは鋭意研究を
重ねた結果、（１）鱗片状鋳鉄粉に、例えば転炉風砕ス
ラグのような球状の無機物を併用する事により、制振性
及び遮音性を大きく低下させることなく、ゴムアスファ
ルト等のバインダ−との混練性、シ−トへの成形性を飛
躍的に向上できること、（２）球状の無機物を併用する
ことにより、鱗片状鋳鉄粉のみでは困難であったゴムア
スファルトに対する含有量を増加できること、（３）制
振遮音材を例えば建築物の壁に用いる場合、施工時の容
易さを確保するためにシ−トに柔軟性をもたせる必要か
ら、ゴムアスファルトの使用が必須であったが、建築物
の床に用いる場合、制振遮音材を床下地材の上に敷き込
んで使用するため、必ずしも柔軟性を持たせる必要がな
く、アスファルトコンパウンドなど一般的なアスファル
トでもよいこと、また一般的なアスファルトは、ゴムア
スファルトに比べて安価であり、制振遮音材をさらに安
価にできること、などを見いだし、本発明を完成するに
至った。Means for Solving the Problems As a result of intensive studies, the present inventors have found that (1) vibration control is achieved by using spherical inorganic materials such as converter blast slag together with scaly cast iron powder. Kneadability with a binder such as rubber asphalt and moldability to a sheet can be drastically improved without significantly lowering the properties and sound insulation properties. The ability to increase the content of rubber asphalt, which was difficult with cast iron powder alone. (3) When using vibration damping and sound insulating materials for building walls, for example, the sheet is flexible to ensure ease of construction. The use of rubber asphalt was indispensable because of the need to provide the floor with building materials. Not asphalt General asphalt may also like Npaundo, also typical asphalt is cheaper than rubber asphalt, it can be further inexpensively damping sound insulators, found like, and completed the present invention.
【００１５】本発明は上記知見に基づいてなされたもの
で、（ａ）ゴムアスファルトと、100 メッシュ以上10メ
ッシュ以下の任意の範囲でふるい分けられた鱗片状鋳鉄
粉と、無機系球状物とからなり、鱗片状鋳鉄粉と無機系
球状物を合計した体積含有率が30〜50％であり且つ両者
の体積含有比が(3:7)〜(7:3) である制振遮音材、
（ｂ）アスファルトコンパウンドと、100 メッシュ以上
10メッシュ以下の任意の範囲でふるい分けられた鱗片状
鋳鉄粉と、無機系球状物とからなり、鱗片状鋳鉄粉と無
機系球状物を合計した体積含有率が30〜50％であり且つ
両者の体積含有比が(3:7) 〜(7:3) である制振遮音材、
（ｃ）上記（ａ）、（ｂ）の制振遮音材において、無機
粉末を体積含有率で20％以下含有する制振遮音材、を提
供する事により課題を解決するものである。なお、ここ
でメッシュとは、タイラ−（Tyler ）フルイに基づくTy
ler No. をいう。The present invention has been made based on the above findings, and comprises (a) rubber asphalt, scaly cast iron powder sieved in an arbitrary range of 100 mesh or more and 10 mesh or less, and an inorganic spherical material. , The total volume content of the flaky cast iron powder and the inorganic spherical material is 30 to 50%, and the volume content ratio of both is (3: 7) to (7: 3),
(B) Asphalt compound and 100 mesh or more
It is composed of scaly cast iron powder sieved in an arbitrary range of 10 mesh or less, and an inorganic spheroid, and the volume content of the total of the flaky cast iron powder and the inorganic spheroid is 30 to 50%. Vibration-damping and sound-insulating material with a volume content ratio of (3: 7) to (7: 3)
(C) An object of the present invention is to solve the problem by providing the above-described vibration-damping and sound-insulating materials of (a) and (b), which contain an inorganic powder in a volume content of not more than 20%. Here, the mesh is a Ty based on a Tyler screen.
ler No.
【００１６】[0016]
【発明の実施の形態】以下、本発明について具体的に説
明する。本発明に使用する鱗片状鋳鉄粉は、自動車部品
等の鋳物の切削、旋削屑である銑ダライ粉を、脱脂、乾
燥、粉砕、ふるい分けして得られる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described specifically. The flaky cast iron powder used in the present invention is obtained by cutting, turning, crushing, and sieving pig Dalai powder, which is a cutting and turning swarf of a casting such as an automobile part.
【００１７】銑ダライ粉は、通常板状の材料であり、長
さが数mmないし数cmで、螺旋状のものも存在しており、
幅、長さ、厚さが一定でないため、そのまま制振遮音材
の材料として用いることは困難である。従って一般に、
銑ダライ粉を、脱脂、乾燥、粉砕し、100 メッシュ以上
10メッシュ以下の任意の範囲でふるい分ける事が必要で
ある。ここで前記鱗片状鋳鉄粉のふるい目の範囲は、10
0 メッシュ以上10メッシュ以下の任意の範囲であり、10
0 メッシュ〜10メッシュに限らず、例えば、60メッシュ
〜10メッシュ，60メッシュ〜20メッシュ，100 メッシュ
〜20メッシュなど100 メッシュ以上10メッシュ以下に含
まれる任意の範囲を含むが、好適には60メッシュ以上20
メッシュ以下である。[0017] Pig iron dry powder is usually a plate-like material, a length of several mm to several cm, and a spiral one also exists.
Since the width, length, and thickness are not constant, it is difficult to use it as it is as the material of the vibration damping and sound insulating material. So in general,
Pig iron powder is degreased, dried and pulverized, 100 mesh or more
It is necessary to screen in an arbitrary range of 10 mesh or less. Here, the range of the sieves of the scaly cast iron powder is 10
Any range between 0 mesh and 10 mesh
The range is not limited to 0 mesh to 10 mesh, and includes any range from 100 mesh to 10 mesh, such as 60 mesh to 10 mesh, 60 mesh to 20 mesh, 100 mesh to 20 mesh, and preferably 60 mesh to 10 mesh. More than 20
It is less than the mesh.
【００１８】鱗片状鋳鉄粉を、100 メッシュ以上10メッ
シュ以下に限定した理由は、100 メッシュ未満のもので
はほとんどが粉体状となり、高い制振性を達成できない
し、10メッシュを越えると、粗大なものが存在し、シ−
ト状に成形することが困難となるばかりか、所定寸法に
裁断することも困難となるためである。The reason why the scale-like cast iron powder is limited to 100 mesh or more and 10 mesh or less is that if it is less than 100 mesh, it is almost powdery and cannot achieve high vibration damping. If it exceeds 10 mesh, it becomes coarse. Things exist,
This is because not only is it difficult to form the sheet into a shape, but also it is difficult to cut the sheet into a predetermined size.
【００１９】鱗片状鋳鉄粉が制振性向上に寄与する理由
は明らかでない点が多いが、成形時に鱗片状鋳鉄粉がシ
−ト長手方向に平行かつ層状に配向しているため、シ−
トに振動エネルギ−加わった場合、シ−トが曲げ振動
し、この時鱗片状鋳鉄粉とアスファルトの界面間のずれ
変形により内部摩擦が生じ、これが熱エネルギ−として
放出されることにより制振性が発揮されるものと推定さ
れる。Although there are many unclear reasons why the flaky cast iron powder contributes to the improvement of the vibration damping property, the flaky cast iron powder is parallel to the longitudinal direction of the sheet and oriented in a layered manner at the time of molding.
When vibration energy is applied to the sheet, the sheet undergoes bending vibration, and at this time, internal friction is generated due to the shear deformation between the interface between the flaky cast iron powder and the asphalt, and this is released as heat energy, thereby damping the vibration. Is estimated to be exerted.
【００２０】本発明では、上記鱗片状鋳鉄粉とともに無
機系球状物を併用する。無機系球状物としては、製鉄プ
ロセスの転炉で副生する転炉溶融スラグを高速空気流で
球状化した転炉風砕スラグ、フェロニッケル・フェロク
ロム等フェロアロイ製造時に副生するフェロアロイスラ
グを同じく高速空気流で球状化したフェロアロイ風砕ス
ラグ、製鉄プロセスの酸洗工程で生成する酸洗廃液を焼
成・造粒して得られる球状酸化鉄、黒曜石を原料に焼成
・発泡させた球状のパ−ライト系軽量骨材、フライアッ
シュ・廃ガラス粉末・下水汚泥や都市ゴミの焼却灰など
を主原料に造粒、焼成、発泡させた廃棄物系軽量骨材、
ガラスバル−ン・シラスバル−ンなど中空状の無機球状
物など比較的真球に近い球状物を挙げることができる。
この中で、転炉風砕スラグ、球状酸化鉄などは、他の物
質の比重が鱗片状鋳鉄粉の７前後に比べて３以下と低い
のに対し、比重が３以上と高く、比較的多量に併用して
も、制振遮音材の面密度が低下して遮音性を大きく低下
させることがないため好ましい。In the present invention, an inorganic spherical material is used in combination with the scaly cast iron powder. Inorganic spheroids include converter blasted slag, which is produced by converting high-speed airflow from converter molten slag, which is a by-product of the ironmaking process converter, and ferroalloy slag, which is a by-product of ferroalloy production such as ferronickel and ferrochrome. Ferroalloy crushed slag spheroidized by air flow, spherical iron oxide obtained by firing and granulating the pickling waste liquid generated in the pickling step of the iron making process, spherical pearlite fired and foamed from obsidian as raw material Lightweight aggregate made of granulated, fired, and foamed materials using fly ash, waste glass powder, sewage sludge, and incinerated ash from municipal waste as main raw materials.
Spherical objects which are relatively close to true spheres, such as hollow inorganic spheres such as glass balloons and shirasu balloons, can be mentioned.
Among them, converter blasted slag, spherical iron oxide, etc. have a relatively high specific gravity of 3 or more, while the specific gravity of other substances is low at 3 or less as compared with around 7 of the flaky cast iron powder. It is preferable to use them together because the surface density of the vibration-damping and sound-insulating material does not decrease and the sound-insulating properties do not significantly decrease.
【００２１】本発明で鱗片状鋳鉄粉とともに無機系球状
物を併用する理由は、該球状物を併用することにより、
アスファルト等のバインダ−と鱗片状鋳鉄粉等の充填材
からなる混練物の流動性が増し、混練性、成形性が飛躍
的に向上するためである。In the present invention, the reason why the inorganic spherical material is used together with the flaky cast iron powder is as follows.
This is because the fluidity of a kneaded material comprising a binder such as asphalt and a filler such as flaky cast iron powder is increased, and the kneadability and moldability are dramatically improved.
【００２２】本発明の制振遮音材を例えば建築物の壁に
用いる場合、柔軟性をもたせるため、バインダ−とし
て、ゴムアスファルトを使用することが必要である。ゴ
ムアスファルトは、ストレ−トアスファルト、ブロ−ン
アスファルトなどのアスファルトにゴム物質等を配合し
て、アスファルトを改質した物である。本発明の制振遮
音材を建築物の壁に用いる場合、隙間をふさぎ完全に密
閉して音がもれないようにする必要があるため、壁のみ
だけでなく壁−天井間及び壁−床間のコ−ナ−部まで含
めて施工するのが普通である。そのため、制振遮音材に
は、折り曲げが容易でかつ折り曲げによる亀裂、剥離等
が生じないような柔軟性が要求される。また制振遮音材
は、建築物の壁に用いる場合、紙管等に巻き付けて長さ
2.4m以上として製品化される。従って、巻き物にする観
点からも柔軟性が要求される。柔軟性に関しては、「防
衛施設周辺住宅防音事業工事標準仕方書」（発行所
（財）防衛施設周辺整備協会）に軟質遮音シ−トの規格
及び性能として、施工上十分に柔軟であること、折り曲
げによって表面に亀裂を生じないこと、と記載されてい
る。なお、ストレ−トアスファルト、ブロ−ンアスファ
ルト及びそれらの混合物のみでは、要求される柔軟性を
確保できない。When the vibration-damping and sound-insulating material of the present invention is used, for example, for building walls, it is necessary to use rubber asphalt as a binder in order to provide flexibility. The rubber asphalt is obtained by modifying a bitumen such as a straight asphalt or a blown asphalt with a rubber substance or the like. When the vibration-damping and sound-insulating material of the present invention is used for a wall of a building, it is necessary to close the gap and completely seal the sound so that sound is not leaked. It is common practice to include the corners between them. Therefore, the vibration damping and sound insulating material is required to have flexibility that can be easily bent and does not cause cracking, peeling, or the like due to bending. When used for building walls, the vibration-damping material should be wound around a paper tube, etc.
Commercialized as 2.4m or more. Therefore, flexibility is required also from the viewpoint of making a roll. Regarding flexibility, the "Standards for Construction of Housing Soundproofing Projects Around Defense Facilities" (published by the Association of Defense Facility Peripheral Maintenance) issued a soft sound insulation sheet with sufficient flexibility in terms of specifications and performance. It is described that the surface is not cracked by bending. The required flexibility cannot be ensured only by straight asphalt, blown asphalt or a mixture thereof.
【００２３】ストレ−トアスファルト、ブロ−ンアスフ
ァルトなどのアスファルトに配合するゴム物質として
は、熱硬化性樹脂として天然ゴム（ＮＲ）、スチレンブ
タジエン共重合体（ＳＢＲ）、アクリロニトリルブタジ
エン共重合体（ＮＢＲ）、クロロプレンゴム（ＣＲ）な
ど、熱可塑性樹脂としてスチレン系、オレフィン系、ウ
レタン系、ポリエステル系などの熱可塑性エラストマ−
など、さらに自動車の廃タイヤ粉砕品など廃棄ゴムを挙
げることができる。特に、アスファルトの欠点である低
温での伸び、折り曲げ性等を改良するものとして、スチ
レン系エラストマ−の例えばスチレン−ブタジエン−ス
チレンブロック共重合体（ＳＢＳ）、スチレン−イソプ
レン−スチレンブロック共重合体（ＳＩＳ）、スチレン
−エチレン／ブチレン−スチレンブロック共重合体（Ｓ
ＥＢＳ）、スチレン−エチレン／プロピレンブロック共
重合体（ＳＥＰ）などが好適である。As rubber materials to be blended into asphalts such as straight asphalt and blown asphalt, natural rubbers (NR), styrene butadiene copolymers (SBR), acrylonitrile butadiene copolymers (NBR) are used as thermosetting resins. ), Chloroprene rubber (CR), and other thermoplastic resins such as styrene, olefin, urethane, and polyester thermoplastic elastomers
And waste rubber such as ground tires of automobiles. In particular, styrene-based elastomers such as styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer ( SIS), styrene-ethylene / butylene-styrene block copolymer (S
EBS), styrene-ethylene / propylene block copolymer (SEP) and the like are preferred.
【００２４】アスファルトの改質効果を高めるため、前
記ゴム物質と併用して、例えばアロマティックオイル・
ナフテニックオイル・パラフィニックオイルなどのプロ
セスオイル、ワセリン・石油樹脂・液状のポリエチレン
・ポリプロピレン・ポリブタジエン・ポリブテンなどの
石油系軟化剤、ステアリン酸・ラウリン酸などの植物油
系軟化剤、ジオクチルフタレ−ト（ＤＯＰ）などのフタ
ル酸系の可塑剤などを必要に応じて添加することができ
る。In order to enhance the asphalt modifying effect, for example, an aromatic oil,
Process oils such as naphthenic oil and paraffinic oil, petroleum softeners such as petrolatum, petroleum resin, liquid polyethylene, polypropylene, polybutadiene and polybutene; vegetable oil softeners such as stearic acid and lauric acid; dioctyl phthalate A phthalic acid-based plasticizer such as (DOP) can be added as needed.
【００２５】一方、本発明の制振遮音材を例えば建築物
の床に用いる場合、（ａ）床下地材の上に制振遮音材を
敷き込み、その上に床表面仕上げ材を施工する現場施工
タイプ、（ｂ）パ−ティクルボ−ド等と床表面仕上げ材
の間に制振遮音材をサンドイッチした床材を工場で作製
し、それを建築物の床に貼付けるタイプ、などがあり、
前記したような柔軟性が必ずしも要求されない。従っ
て、本発明の制振遮音材を建築物の床に用いる場合、バ
インダ−としてゴムアスファルトを必ずしも必要としな
い。On the other hand, when the vibration-damping and sound-insulating material of the present invention is used for, for example, a floor of a building, (a) a floor where a vibration-damping sound-insulating material is laid on a base material and a floor surface finishing material is constructed thereon There are construction types, (b) a type of floor material in which a vibration damping material is sandwiched between a particle board and the like and a floor surface finishing material at a factory, and the type is attached to the floor of a building.
Such flexibility is not always required. Therefore, when the vibration-damping and sound-insulating material of the present invention is used for a building floor, rubber asphalt is not necessarily required as a binder.
【００２６】前記した柔軟性が要求されない場合、バイ
ンダ−としては、ストレ−トアスファルト、ブロ−ンア
スファルトより、アスファルトコンパウンドが好適であ
る。アスファルトコンパウンドは、ブロ−ンアスファル
トに動植物油脂、その他脂肪酸ピッチなどを添加混合
し、伸度、感温性、接着性、弾力性、耐候性などを改善
した物である。アスファルトコンパウンドは、特に感温
性（温度の高低によって硬さ、粘度などが変化する性
質）が小さく、粘弾性の変化も小さいことから、幅広い
温度で高い制振性を保持しやすい。また温度が上昇した
ときのダレ、軟化も小さいため、床面がへこんだりする
こともない。またアスファルトコンパウンドは、一般に
建築物屋根の防水用、埋設鋼管の防食ライニング用、コ
ンクリ−ト舗装などの目地用等に用いられており、耐候
性にも優れている。なお、本発明でいうアスファルトコ
ンパウンドは、ＪＩＳ K2207［石油アスファルト］に規
定されている防水工事用アスファルトと同等の品質を有
するものである。When the above flexibility is not required, as the binder, asphalt compound is more preferable than straight asphalt or blown asphalt. The asphalt compound is obtained by adding animal and vegetable fats and oils and other fatty acid pitches to blown asphalt and mixing them to improve elongation, temperature sensitivity, adhesiveness, elasticity, weather resistance and the like. Asphalt compounds are particularly low in temperature sensitivity (the property that hardness, viscosity, etc. change depending on the temperature) and change in viscoelasticity is small, so that it is easy to maintain high vibration damping properties in a wide range of temperatures. Moreover, since the sagging and softening when the temperature rises are small, the floor surface does not dent. In addition, asphalt compounds are generally used for waterproofing roofs of buildings, anticorrosion linings of buried steel pipes, joints for concrete paving, and the like, and have excellent weather resistance. The asphalt compound according to the present invention has the same quality as asphalt for waterproofing work specified in JIS K2207 [petroleum asphalt].
【００２７】本発明の制振遮音材は、上述のゴムアスフ
ァルトまたはアスファルトコンパウンドをバインダ−と
し、鱗片状鋳鉄粉と無機系球状物を合計した体積含有率
で30〜50％含むものである。鱗片状鋳鉄粉と無機系球状
物を合計した体積含有率が30％未満では高い制振性と遮
音性が達成できない。一方、体積含有率が50％を越える
と混練性、成形性などが悪化するばかりか、所定寸法に
裁断することも困難となる。また鱗片状鋳鉄粉と無機系
球状物の体積含有比は、 (3:7)〜(7:3) であることが好
ましい。鱗片状鋳鉄粉と無機系球状物を合計した体積中
で占める鱗片状鋳鉄粉の体積含有率が30％未満になる
と、制振性及び遮音性、とくに制振性が低下し好ましく
ない。一方、鱗片状鋳鉄粉の体積含有率が70％を越える
と、高い制振性及び遮音性が得られるが、混練性、成形
性などが悪化し、制振遮音材の製造効率が低下する。な
お、ここでいう体積含有率は、混練時や成形時に巻き込
まれる空気を含まない値である。本発明の制振遮音材
は、通常、巻き込み空気を 3〜15％含んでいる。The vibration-damping and sound-insulating material of the present invention contains the above-mentioned rubber asphalt or asphalt compound as a binder and contains 30 to 50% by volume of the total of flaky cast iron powder and inorganic spheres. If the total volume content of the flaky cast iron powder and the inorganic spherical material is less than 30%, high vibration damping and sound insulation cannot be achieved. On the other hand, when the volume content exceeds 50%, not only kneading properties and moldability deteriorate, but also it becomes difficult to cut into predetermined dimensions. The volume content ratio of the flaky cast iron powder to the inorganic spherical material is preferably (3: 7) to (7: 3). When the volume content of the flaky cast iron powder in the total volume of the flaky cast iron powder and the inorganic spherical material is less than 30%, the vibration damping property and the sound insulating property, especially the vibration damping property are deteriorated, which is not preferable. On the other hand, when the volume content of the flaky cast iron powder exceeds 70%, high vibration damping properties and sound insulation properties can be obtained, but kneading properties and moldability deteriorate, and the production efficiency of the vibration damping sound insulation materials decreases. In addition, the volume content referred to here is a value that does not include air entrained during kneading or molding. The vibration damping sound insulating material of the present invention usually contains 3 to 15% of entrained air.
【００２８】本発明では、必要により、さらに無機粉末
を体積含有率で20％以下含有させる事ができる。無機粉
末は、混練性、シ−ト状への成形性が良好な場合、必ず
しも添加しなくてもよい。しかし、無機粉末を適宜添加
することにより、アスファルトと鱗片状鋳鉄粉及び無機
系球状物の間隙を埋め密度や密着性を高めて制振性を向
上させることができる。In the present invention, if necessary, the inorganic powder can be further contained in a volume content of 20% or less. The inorganic powder may not necessarily be added when the kneading property and the sheet formability are good. However, by appropriately adding the inorganic powder, the gap between the asphalt, the flaky cast iron powder and the inorganic spherical material can be filled, the density and the adhesion can be increased, and the vibration damping property can be improved.
【００２９】無機粉末としては、炭酸カルシウム、高炉
水砕スラグ粉末、各種セメント粉、クレ−、タルク、石
膏、ケイソウ土、ベントナイト、岩石粉などを挙げるこ
とができる。無機粉末の含有量は、体積含有率で20％以
下である。20％を越えて含有させると、混練性、成形性
などが悪化する事がある。好適には、体積含有率で1〜2
0％、特に10〜20％含有させるのがよい。Examples of the inorganic powder include calcium carbonate, granulated blast furnace slag, various cement powders, clay, talc, gypsum, diatomaceous earth, bentonite, and rock powder. The content of the inorganic powder is not more than 20% by volume content. If the content exceeds 20%, kneading properties, moldability and the like may be deteriorated. Preferably, the volume content is 1-2.
The content is preferably 0%, particularly 10 to 20%.
【００３０】本発明では、制振遮音材の強度、特に引張
強度を向上させるために、上述のゴムアスファルト、ア
スファルトコンパウンド、鱗片状鋳鉄粉、無機系球状
物、無機粉末以外の材料として、ガラス繊維、ビニロン
繊維、ポリプロピレン繊維、カ−ボン繊維等、繊維材料
を用いることができる。また、防炎性を特に必要とする
場合、三酸化アンチモン、塩素化パラフィン、臭素化ビ
スフェノ−ル、臭素化ジフェニルエ−テル等のハロゲン
系有機難燃剤などを用いることができる。なお防炎性に
ついては、「防衛施設周辺住宅防音事業工事標準仕方
書」（発行所（財）防衛施設周辺整備協会）に記載され
ている軟質遮音シ−トの規格が目安となっており、消防
法施工令第４条の３に規定する防炎性能を有することが
必要である。また防炎性の中で、特に金属鉄粉、酸化鉄
粉等に起因するといわれている残塵が問題となるようで
あれば、ホウ酸亜鉛、アルカリ金属炭酸塩、ケイ酸塩な
ど通称グロ−抑制剤を用いてもよい。According to the present invention, in order to improve the strength of the vibration damping and sound insulating material, particularly the tensile strength, glass fiber is used as a material other than the above-mentioned rubber asphalt, asphalt compound, scaly cast iron powder, inorganic spheroid, and inorganic powder. And fibrous materials such as vinylon fiber, polypropylene fiber and carbon fiber. When flame resistance is particularly required, halogen-based organic flame retardants such as antimony trioxide, chlorinated paraffin, brominated bisphenol and brominated diphenyl ether can be used. As for flameproofing, the standard of the soft sound insulation sheet described in the "Standards for Construction of Housing Soundproofing Projects around Defense Facilities" (published by the Association for the Improvement of Defense Facilities Surroundings) is a guide. It is necessary to have the flameproof performance specified in Article 4-3 of the Fire Service Act. In addition, if the residual dust, which is said to be caused by metal iron powder, iron oxide powder, etc., becomes a problem in the flameproofing properties, zinc borate, alkali metal carbonate, silicate, etc. Inhibitors may be used.
【００３１】本発明の制振遮音材には、機械的強度、接
着性、耐熱性等を向上させたり、印刷を行うため、表
面、裏面及び表裏面に不織布を用いるのが通常である。
不織布としては、ポリエステル系、ガラス繊維系、ポリ
プロピレン系、パルプ系などがあるが、耐熱性等の観点
からポリエステル系が好適である。また、不織布以外の
材料として、ポリエチレン・ポリプロピレン・ビニロン
・ガラス繊維等によるクロス、ポリ塩化ビニル・ポリエ
チレン等のフィルム、ポリスチレン・ポリエチレン・ポ
リプロピレン等の発泡シ−ト、アルミ箔・ステンレス箔
等の金属箔を用いてもよい。In the vibration damping and sound insulating material of the present invention, nonwoven fabrics are usually used on the front surface, the back surface, and the front and back surfaces in order to improve mechanical strength, adhesiveness, heat resistance and the like and to perform printing.
As the nonwoven fabric, there are polyester type, glass fiber type, polypropylene type, pulp type and the like, and polyester type is preferable from the viewpoint of heat resistance and the like. As materials other than the nonwoven fabric, cloth made of polyethylene, polypropylene, vinylon, glass fiber, etc., films of polyvinyl chloride, polyethylene, etc., foam sheets of polystyrene, polyethylene, polypropylene, etc., and metal foils of aluminum foil, stainless steel foil, etc. May be used.
【００３２】本発明の制振遮音材は、前記した材料を所
定の比率で配合したものを、熱媒体等による加熱装置付
き混練機により温度約200 ℃で混練し、その用途に応じ
て所望の形状、寸法に成形される。建築物壁用、及び床
用の制振遮音材として使用する場合、成形機にて例えば
厚さ 1〜12mm（建築物壁用の場合 1〜 3mm程度、建築物
床用の場合 3〜12mm程度）、幅450mm 以上、長さ900mm
以上のシ−ト状に成形することにより製造される。加熱
装置付き混練機は、粘りのある材料に対し好適な二軸の
スクリュ−あるいはニ−ダ−を用いるのが一般的であ
る。成形機は、押出し成形機を用いる場合もあるが、カ
レンダ−ロ−ル等ロ−ル成形機を用いるのが通常であ
る。なお、表裏面に不織布を用いる場合、成形時にそれ
らをロ−ル成形機両側から供給し、一体成形することが
できる。The vibration-damping and sound-insulating material of the present invention is obtained by kneading a mixture of the above materials at a predetermined ratio at a temperature of about 200 ° C. by a kneader equipped with a heating device using a heating medium or the like. Shaped and dimensioned. When used as a vibration-damping and sound-insulating material for building walls and floors, use a molding machine with a thickness of, for example, 1 to 12 mm (about 1 to 3 mm for building walls, about 3 to 12 mm for building floors). ), Width 450mm or more, length 900mm
It is manufactured by molding into a sheet as described above. A kneader equipped with a heating device generally uses a twin-screw or kneader suitable for a viscous material. As the molding machine, an extrusion molding machine may be used, but a roll molding machine such as a calendar roll is usually used. When non-woven fabrics are used on the front and back surfaces, they can be supplied from both sides of the roll forming machine during molding to be integrally molded.
【００３３】[0033]
【実施例】以下に本発明の実施例を示す。厚さ2.4mm な
らびに厚さ8mm の本発明及び比較例の制振遮音材を作成
し、以下の項目による評価を行った。 ［制振性］；制振性の評価指標となる損失係数の測定を
行った。損失係数は、振動系に対する減衰或るいは抵抗
分をを示す値で、この値が大きいほど制振性が優れてい
る。損失係数の測定は、室内温度20℃の条件のもと、図
１に示すように、制振遮音材３を幅3cm ×長さ30cmに切
断し、これを同サイズの冷延鋼板２にエポキシ系接着剤
を用いて圧着し、試験体を作製した。次に、この試験体
を絹糸１で吊し、鋼板中央部を加振機４にて加振し、制
振遮音材側にセットした加速度センサ−５に受信される
加速度応答を測定した。これを周波数応答解析を行うこ
とにより損失係数を求めた。なお冷延鋼板は、厚さ2.4m
m の制振遮音材には厚さ0.5mm のものを、厚さ8mm の制
振遮音材には厚さ1.6mm のものを用いた。 ［遮音性］；音響透過損失により評価した。音響透過損
失の測定は、ＪＩＳ A1416「実験室における音響透過損
失測定方法」に準じて行った。なお、試験体（厚さ2.4m
m の制振遮音材）面積は、1.66 m2 とし、開口部面積1.
62 m2 ，音源室容積164m3 、受音室容積68m 3 の残響室
を用いて行った。 ［厚さ］；ノギスにより測定した。 ［面密度］；幅、長さ及び重量を測定し、算出した。 ［混練性］；混練状況を観察し、 ○・・・均一に混練することが容易なもの、 △・・・時間をかければ、均一に混練できるもの、 ×・・・均一混練が困難なもの、の３段階で評価した。 ［成形性］；成形は、 ○・・・成形が容易で、厚さが均一かつ表面にシワ等の
発生もなく仕上り状況が良好なもの、 △・・・成形は可能だが、厚さが不均一で表面状態も不
良なもの、 ×・・・成形が不可能なもの、の３段階で評価した。 ［混練物の流動性］；混練物の流動性は、図２に示す上
端部φ70mm，下端部φ14mm、長さ395mm のロ−ト管（Ｊ
ロ−ト）に、下端部（φ14mm）の穴を閉じた状態で混練
物を上端まで詰め、次に下端部の穴を解放したときの混
練物の流れ出るまでの時間、流れの状態を観察し、 ○・・・混練物が閉塞することなくスム−ズに、かつ短
時間のうちに全て流れ出るもの、 △・・・混練物は一部を残して殆ど流れ出るが、流れ出
るまでに時間がかかるもの、 ×・・・混練物は一部流れ出るのみで、50％以上のもの
が流れ出ず、ロ−ト管内に閉塞してしまうもの、の３段
階で評価した。試験の実施は、実験結果の再現性及び試
験時の安全性を考慮して、高熱状態のアスファルトの代
わりに200 ℃のアスファルトと同じ粘度（2 〜3 ポア
ズ）をもつ機械オイルを用い、これと鱗片状鋳鉄粉、転
炉風砕スラグ、無機粉末とを混練時間15分の条件で混練
したものを用いて行った。 （実施例１）表１、表２に示す材料と配合比により厚さ
2.4mm 及び厚さ8mm の制振遮音材を作製した。Examples of the present invention will be described below. A 2.4 mm thick and 8 mm thick vibration damping and sound insulating material of the present invention and comparative examples were prepared and evaluated by the following items. [Vibration Suppressing Property]: A loss coefficient as an evaluation index of the vibration damping property was measured. The loss coefficient is a value indicating attenuation or resistance to the vibration system, and the larger the value, the better the vibration damping property. As shown in Fig. 1, the loss coefficient was measured by cutting the vibration-damping and sound-insulating material 3 to a width of 3 cm x a length of 30 cm under the condition of a room temperature of 20 ° C, and cutting the same into a cold-rolled steel plate 2 of the same size. A test piece was prepared by pressure bonding using a system adhesive. Next, the test piece was suspended with the silk thread 1, the central part of the steel plate was vibrated by the vibrator 4, and the acceleration response received by the acceleration sensor 5 set on the vibration damping / insulating material side was measured. This was subjected to a frequency response analysis to obtain a loss coefficient. The cold-rolled steel sheet is 2.4m thick
A 0.5 mm thick damping and sound insulating material and a 1.6 mm thick damping and sound insulating material with a thickness of 8 mm were used. [Sound insulation]: Evaluated by sound transmission loss. The measurement of the sound transmission loss was performed according to JIS A1416 “Method of measuring sound transmission loss in laboratory”. The test piece (2.4m thick)
damping sound insulation) area of m, and 1.66 m 2, the opening area 1.
The measurement was performed using a reverberation room having 62 m 2 , a sound source room volume of 164 m 3 , and a sound receiving room volume of 68 m 3 . [Thickness]: Measured with a caliper. [Area density]: The width, length and weight were measured and calculated. [Kneading property]: Observing the kneading condition, ○: easy to knead uniformly, △: uniform kneading over time, ×: difficult to uniformly knead , In three stages. [Moldability]; Molding: ○: easy to mold, uniform in thickness and good in appearance without wrinkles or the like on the surface; Δ: moldable but not thick Evaluated in three stages: uniform and poor surface condition, x: impossible to mold. [Fluidity of kneaded material]; The flowability of the kneaded material was measured by a rotatable tube (J) having an upper end of φ70 mm, a lower end of φ14 mm, and a length of 395 mm shown in FIG.
The kneaded material is filled to the upper end with the hole at the lower end (φ14mm) closed, and the flow state is observed for the time until the kneaded material flows out when the hole at the lower end is released. , ・ ・ ・: The kneaded material flows out smoothly and without clogging, and all flows out in a short time. △: The kneaded material flows out except for a part but takes time to flow out X: The kneaded material was evaluated in three stages: only a part of the kneaded material flowed out, 50% or more of the kneaded material did not flow out and clogged in the funnel. In conducting the test, in consideration of the reproducibility of the experimental results and the safety during the test, use a machine oil having the same viscosity (2 to 3 poise) as asphalt at 200 ° C instead of the hot asphalt. Kneading was performed using flaky cast iron powder, converter blasted slag, and inorganic powder under a kneading time of 15 minutes. (Example 1) Thickness according to the materials and the mixing ratios shown in Tables 1 and 2
A 2.4 mm and 8 mm thick vibration damping sound insulation material was manufactured.
【００３４】鱗片状鋳鉄粉は、銑ダライ粉を脱脂、乾
燥、粉砕し、60メッシュ以上10メッシュ以下にふるい分
けしたものを用いた。この実施例に用いた鱗片状鋳鉄粉
の形状は、光学顕微鏡で観察した結果、幅方向で0.3 〜
2.1mm （平均0.6mm ）、長手方向で0.4 〜7.8mm （平均
1.1mm ）、厚さ0.03〜0.6mm （平均0.13mm）であった。
なお比重は6.8 であった。[0034] The scaly cast iron powder was obtained by degreased, dried, and pulverized pig dalai powder and sieved to 60 mesh or more and 10 mesh or less. The shape of the scaly cast iron powder used in this example was 0.3 to 0.3 mm in the width direction as a result of observation with an optical microscope.
2.1mm (average 0.6mm), 0.4 to 7.8mm in longitudinal direction (average)
1.1 mm) and a thickness of 0.03 to 0.6 mm (average 0.13 mm).
The specific gravity was 6.8.
【００３５】アスファルトは、厚さ2.4mm の制振遮音材
には、ゴムアスファルト（昭和シェル石油株式会社製の
防振材用カリファルト（商品名））を用い、厚さ8mm の
制振遮音材にはアスファルトコンパウンドを用いた。Asphalt is a 2.4 mm thick vibration damping and sound insulating material. Rubber asphalt (calibration (trade name) manufactured by Showa Shell Sekiyu KK) is used as the vibration damping sound insulating material with a thickness of 8 mm. Used asphalt compound.
【００３６】無機粉末として、74μm 以下が70％以上の
道路用石粉に相当する炭酸カルシウム粉を用いた。転炉
風砕スラグとして、粒径1.0mm 以下にふるい分けしたも
のを用いた。なお、比重は3.5 であった。As the inorganic powder, calcium carbonate powder having a particle size of 74 μm or less corresponding to 70% or more of road stone powder was used. Blast furnace slag that had been sieved to a particle size of 1.0 mm or less was used. The specific gravity was 3.5.
【００３７】制振遮音材の作製は、上記の材料を本発明
例は表１、比較例は表２に示す所定の配合比で配合した
後、加熱装置付きニ−ダ−で約200 ℃に加熱混練し、次
にこの混練物をロ−ル成形機に供給し、厚さ2.4mm 及び
8mm を目標に成形して行った。なお、成形時にロ−ル両
側より、目付量50g/m 2 のポリエステル不織布を供給
し、表裏面に一体成形した。制振遮音材の仕上がり寸法
は、厚さ8mm のものについては、908mm ×908mm 、厚さ
2.4mm のものについては910mm ×2400mmとした。The vibration-damping and sound-insulating materials were prepared by mixing the above-mentioned materials at a predetermined mixing ratio shown in Table 1 in the present invention and in Comparative Example 2 at a predetermined mixing ratio shown in Table 2, and then heated to about 200 ° C. with a kneader equipped with a heating device. The mixture was heated and kneaded, and then the kneaded product was supplied to a roll forming machine, and the thickness was 2.4 mm.
It was molded with a target of 8 mm. At the time of molding, a polyester nonwoven fabric having a basis weight of 50 g / m 2 was supplied from both sides of the roll, and was integrally molded on the front and back surfaces. The finished dimensions of the vibration-damping and sound-insulating material are 908 mm x 908 mm for a thickness of 8 mm.
For a 2.4mm one, it was 910mm x 2400mm.
【００３８】表１の本発明例１、２、３は、鱗片状鋳鉄
粉と転炉風砕スラグの合計の体積含有率を30％とし、鱗
片状鋳鉄粉と転炉風砕スラグの配合比が本発明の範囲に
あるものである。本発明例４、５、６は、鱗片状鋳鉄粉
と転炉風砕スラグの合計の体積含有率を40％程度とし、
鱗片状鋳鉄粉と転炉風砕スラグの配合比が本発明の範囲
にあるものである。本発明例７、８、９は、鱗片状鋳鉄
粉と転炉風砕スラグの合計の体積含有率を50％とし、鱗
片状鋳鉄粉と転炉風砕スラグの配合比が本発明の範囲に
あるものである。In Examples 1, 2 and 3 of the present invention in Table 1, the total volume content of the flaky cast iron powder and the converter blast slag was 30%, and the mixing ratio of the flaky cast iron powder and the converter blast slag was Are within the scope of the present invention. Inventive Examples 4, 5, and 6, the total volume content of the scaly cast iron powder and the converter blast slag was set to about 40%,
The mixing ratio of the scaly cast iron powder and the converter blast slag is within the scope of the present invention. Inventive Examples 7, 8, and 9, the total volume content of the flaky cast iron powder and the converter blast slag was 50%, and the compounding ratio of the flaky cast iron powder and the converter blast slag was within the range of the present invention. There is something.
【００３９】表２の比較例１、２と比較例３、４は、鱗
片状鋳鉄粉と転炉風砕スラグの合計の体積含有率がそれ
ぞれ20％、55％と本発明の範囲から外れるもの、比較例
５は無機粉末の体積含有率が本発明の範囲から外れるも
の、比較例６、７は、鱗片状鋳鉄粉と転炉風砕スラグの
合計の体積含有率は本発明の範囲にあるが、鱗片状鋳鉄
粉と転炉風砕スラグの配合比が本発明の範囲を外れるも
のである。比較例８、９（表２には示さず）として、市
販のアスファルト系制振材（厚さ8mm 、面密度17.4kg/m
2 ）、遮音シ−ト（厚さ2.4mm 、面密度7.0kg/m 2 ）を
用いた。In Comparative Examples 1 and 2 and Comparative Examples 3 and 4 in Table 2, the total volumetric contents of the flaky cast iron powder and the converter blast slag are 20% and 55%, respectively, which are out of the range of the present invention. In Comparative Example 5, the volume content of the inorganic powder is out of the range of the present invention. In Comparative Examples 6 and 7, the total volume content of the flaky cast iron powder and the converter slag is in the range of the present invention. However, the compounding ratio of the flaky cast iron powder and the converter slag is out of the range of the present invention. As Comparative Examples 8 and 9 (not shown in Table 2), a commercially available asphalt-based vibration damping material (8 mm thick, surface density 17.4 kg / m)
2 ) A sound insulation sheet (2.4 mm thick, area density 7.0 kg / m 2 ) was used.
【００４０】[0040]
【表１】 [Table 1]
【００４１】[0041]
【表２】 [Table 2]
【００４２】表１、表２中において、＊＊、＊印の意味
を下記に示す。＊＊印で示す配合比は、上段の値が重量
部、下段の（ ）内の値が体積含有率（％）である。In Tables 1 and 2, the meanings of ** and * are shown below. In the mixing ratios indicated by ** marks, the values in the upper row are parts by weight, and the values in parentheses in the lower row are volume content rates (%).
【００４３】＊印で示すアスファルトは、厚さ2.4mm の
制振遮音材に対してゴムアスファルト、厚さ8mm の制振
遮音材に対してアスファルトコンパウンドを使用した。
以上のようにして作製した本発明例の混練性、流動性、
制振遮音材の成形性、仕上りの厚さなどの試作結果を表
３に、比較例の試作結果を表４に示す。Rubber asphalt was used for the damping and sound insulating material having a thickness of 2.4 mm, and asphalt compound was used for the damping and insulating material having a thickness of 8 mm.
Kneading properties, fluidity of the present invention example produced as described above,
Table 3 shows the results of trial production such as the formability and finished thickness of the vibration damping sound insulating material, and Table 4 shows the results of trial production of the comparative example.
【００４４】比較例３、４では、鱗片状鋳鉄粉と転炉風
砕スラグの配合量が多く、比較例５では炭酸カルシウム
粉の配合量が多く、また比較例６、７では鱗片状鋳鉄粉
の配合量が多いため、混練に時間を要し、流動性も悪か
った。比較例３、４、６、７は成形が困難で、不織布に
シワや破穴が発生し、目標とした所定の厚さより大きく
なり、損失係数や音響透過損失を測定するための試験体
を得ることが出来なかった。比較例５は、成形は可能だ
が、厚みが不均一で表面仕上り状況は一部シワの発生が
見られ歩留まりも悪く、損失係数測定のための小さな試
験体しか得られなかった。In Comparative Examples 3 and 4, the compounding amount of the flaky cast iron powder and the converter blast slag was large, in Comparative Example 5, the compounding amount of the calcium carbonate powder was large, and in Comparative Examples 6 and 7, the flaky cast iron powder was used. Because of the large amount of the compound, time was required for kneading, and the fluidity was poor. In Comparative Examples 3, 4, 6, and 7, molding is difficult, wrinkles and holes are generated in the nonwoven fabric, the thickness becomes larger than a predetermined target thickness, and a test body for measuring a loss coefficient and a sound transmission loss is obtained. I couldn't do that. In Comparative Example 5, molding was possible, but the thickness was uneven, the surface finish was partially wrinkled, the yield was poor, and only a small specimen for measuring the loss coefficient was obtained.
【００４５】比較例３、４、５、６、７を除く、本発明
例１〜９、比較例１、２は、混練、制振遮音材への成形
が順調に行えた。成形後の制振遮音材の厚さも、目標と
した所定の厚さのものが得られ、仕上がり表面も良好で
あった。特に、本発明例４〜９に見られるように、比較
例３、４、６、７では成形が困難であったものが、球状
の転炉風砕スラグを本発明の範囲で配合することによ
り、成形がスム−ズに行うことができ、鱗片状鋳鉄粉と
転炉風砕スラグの配合量も多くすることができた。Except for Comparative Examples 3, 4, 5, 6, and 7, Examples 1 to 9 of the present invention and Comparative Examples 1 and 2 were successfully kneaded and formed into a vibration-damping and sound-insulating material. The thickness of the vibration-damping and sound-insulating material after molding was also a target having a predetermined thickness, and the finished surface was good. In particular, as can be seen in Examples 4 to 9 of the present invention, those which were difficult to form in Comparative Examples 3, 4, 6, and 7 were mixed with spherical converter blast slag within the scope of the present invention. The molding could be performed smoothly, and the compounding amount of the flaky cast iron powder and the converter blast slag could be increased.
【００４６】[0046]
【表３】 [Table 3]
【００４７】[0047]
【表４】 （実施例２）実施例１で作製した本発明例１〜９、比較
例１、２、５及び比較例８、９について損失係数（制振
性）、音響透過損失（遮音性）を測定した。測定の際
は、厚さ2.4mm の制振遮音材には損失係数、音響透過損
失の測定を、厚さ8mm については、損失係数の測定を行
った。測定結果を表５に示す。なお、表５には、試験体
の面密度、成形時の制振遮音材の厚さも併記した。[Table 4] (Example 2) The loss coefficient (damping property) and the sound transmission loss (sound insulation property) of the inventive examples 1 to 9, the comparative examples 1, 2, and 5, and the comparative examples 8 and 9 produced in Example 1 were measured. . At the time of measurement, the loss coefficient and sound transmission loss were measured for the 2.4 mm thick vibration damping and sound insulating material, and the loss coefficient was measured for the 8 mm thick. Table 5 shows the measurement results. Table 5 also shows the surface density of the test specimen and the thickness of the vibration-damping and sound-insulating material during molding.
【００４８】表５から本発明例１〜９は、厚さ2.4mm の
制振遮音材については、高い制振性（損失係数）と遮音
性（音響透過損失）を兼ね備えたもの、厚さ8mm の制振
遮音材については比較例９に比べて格段に高い制振性を
有するものであることが明らかである。比較例１、２
は、鱗片状鋳鉄粉と転炉風砕スラグの合計の体積含有率
が20％と低く、制振性、遮音性とも本発明例１〜９に比
べ低い。また比較例５は、制振性が本発明例１〜９に比
べ低い。比較例８は、制振性、遮音性とも本発明例１〜
９に比べ低い。From Table 5, it is found that Examples 1 to 9 of the present invention show that the 2.4 mm thick vibration damping and sound insulating material has both high damping properties (loss coefficient) and sound insulating properties (sound transmission loss) and a thickness of 8 mm. It is clear that the vibration damping and sound insulating material of (1) has much higher vibration damping properties than Comparative Example 9. Comparative Examples 1 and 2
Has a low volumetric content of 20% of the total volume of the flaky cast iron powder and the converter blast slag, and is lower in both the vibration damping property and the sound insulating property as compared with the inventive examples 1 to 9. Comparative Example 5 has lower vibration damping properties than Examples 1 to 9 of the present invention. Comparative Example 8 shows that the vibration damping property and the sound insulating property were both of the present invention examples 1 to 5.
It is lower than 9.
【００４９】[0049]
【表５】 [Table 5]
【００５０】[0050]
【発明の効果】本発明の制振遮音材は、粘弾性物質であ
るゴムアスファルトまたはアスファルトコンパウンド、
鱗片状鋳鉄粉、無機系球状物、さらには無機粉末とを混
合したことにより、制振性と遮音性を兼ね備えている。
従って、本発明の制振遮音材を、例えば建築物の床、壁
等に適用すれば、制振性が高いことにより、床、壁等に
直接作用した振動により建築物躯体を通して伝わる音
（固体伝播音）を低減する効果がある。また遮音性が高
いことにより、自動車、鉄道車両、航空機、工場、工事
現場等からの外部騒音が室内へ透過する音（空気伝播
音）を低減する効果がある。The vibration-damping and sound-insulating material of the present invention is a viscoelastic material such as rubber asphalt or asphalt compound,
By mixing flaky cast iron powder, inorganic spherical material, and inorganic powder, it has both vibration damping properties and sound insulation properties.
Therefore, when the vibration damping and sound-insulating material of the present invention is applied to, for example, floors and walls of buildings, due to its high damping properties, sound (solids) transmitted through the building frame by vibrations directly acting on floors and walls, etc. (Propagating sound). In addition, since the sound insulation is high, there is an effect of reducing a sound (air propagation sound) transmitted from a vehicle, a railway vehicle, an aircraft, a factory, a construction site, and the like to the room by external noise.
【００５１】また、鱗片状鋳鉄粉、転炉風砕スラグは、
従来技術の金属鉛及び鉛酸化物等に比べて安価であり、
製造工程及び廃棄に関して公害を引き起こすことがな
い。さらに、鱗片状鋳鉄粉、転炉風砕スラグの形状が比
較的小さいため、任意の厚さの制振遮音材を容易に製造
することができ、建築物の壁及び床材の用途に有効に利
用することができる。Further, the flaky cast iron powder and the converter blast slag are:
It is cheaper than conventional metal lead and lead oxide, etc.,
Does not cause pollution in the manufacturing process and disposal. Furthermore, since the shape of the flaky cast iron powder and the converter blast slag are relatively small, it is possible to easily manufacture a vibration-damping and sound-insulating material having an arbitrary thickness, which is effectively used for building walls and floor materials. Can be used.
【図１】制振性（損失係数）の測定方法を示す図。FIG. 1 is a diagram showing a method for measuring a damping property (loss coefficient).
【図２】混練物の流動性の判定に用いたＪロ−ト管を示
す図。FIG. 2 is a view showing a J-Rot tube used for determining the fluidity of a kneaded material.
【符号の説明】 １、絹糸 ２、厚さ0.5mm または1.6mm の冷延鋼板
３、制振遮音材 ４、加振機 ５、加速度センサ−[Explanation of Signs] 1. Silk thread 2, cold-rolled steel sheet 0.5mm or 1.6mm thick
3, vibration damping and sound insulating material 4, vibration exciter 5, acceleration sensor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原 幹和 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 宮杜 滋 埼玉県熊谷市万吉572−280 (72)発明者 牧田 尚 東京都中央区八丁堀３丁目３番５号 コス モアスファルト株式会社内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Mikikazu Hara 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. Inventor: Takashi Makita Cosmo Asphalt Co., Ltd., 3-3-5, Hatchobori, Chuo-ku, Tokyo
Claims (3)
10メッシュ以下の任意の範囲でふるい分けられた鱗片状
鋳鉄粉と、無機系球状物と、無機粉末からなり、鱗片状
鋳鉄粉と無機系球状物を合計した体積含有率が30〜50％
であり且つ両者の体積含有比が(3:7) 〜(7:3) であり、
さらに無機粉末の体積含有率が20％以下（0 ％を含む）
であることを特徴とする制振遮音材。1. Rubber asphalt and 100 mesh or more
Scale-like cast iron powder sieved in an arbitrary range of 10 mesh or less, inorganic spherical material, and inorganic powder, the volume content of the total of the scale-like cast iron powder and inorganic spherical material is 30 to 50%
And the volume content ratio of both is (3: 7) to (7: 3),
In addition, the volume content of inorganic powder is 20% or less (including 0%)
A vibration damping and sound insulating material characterized by the following.
シュ以上10メッシュ以下の任意の範囲でふるい分けられ
た鱗片状鋳鉄粉と、無機系球状物と、無機粉末からな
り、鱗片状鋳鉄粉と無機系球状物を合計した体積含有率
が30〜50％であり且つ両者の体積含有比が(3:7) 〜(7:
3) であり、さらに無機粉末の体積含有率が20％以下（0
％を含む）であることを特徴とする制振遮音材。2. An asphalt compound, flaky cast iron powder sieved in an arbitrary range of 100 mesh or more and 10 mesh or less, an inorganic spherical material, and an inorganic powder, wherein the flaky cast iron powder and the inorganic spherical material are mixed. The total volume content is 30 to 50%, and the volume content ratio of both is (3: 7) to (7:
3) and the volume content of inorganic powder is 20% or less (0%
% Vibration damping and sound insulating material.
グを用いることを特徴とする、請求項１または２に記載
の制振遮音材。3. The vibration damping and sound insulating material according to claim 1, wherein a converter blast slag is used as the inorganic spherical material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8171225A JPH1018466A (en) | 1996-07-01 | 1996-07-01 | Vibration-damping sound-insulating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8171225A JPH1018466A (en) | 1996-07-01 | 1996-07-01 | Vibration-damping sound-insulating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1018466A true JPH1018466A (en) | 1998-01-20 |
Family
ID=15919373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8171225A Pending JPH1018466A (en) | 1996-07-01 | 1996-07-01 | Vibration-damping sound-insulating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1018466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002070200A (en) * | 2000-08-30 | 2002-03-08 | Toyo Constr Co Ltd | Vibration control structure for building and construction method therefor |
| JP2008138464A (en) * | 2006-12-04 | 2008-06-19 | Toda Constr Co Ltd | Aseismatic ceiling structure, ceiling seismic response control device and installation method of ceiling seismic response control device |
| JP2017206728A (en) * | 2016-05-17 | 2017-11-24 | 株式会社明菱 | Molding material, molding device and manufacturing method of molded body |
-
1996
- 1996-07-01 JP JP8171225A patent/JPH1018466A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002070200A (en) * | 2000-08-30 | 2002-03-08 | Toyo Constr Co Ltd | Vibration control structure for building and construction method therefor |
| JP2008138464A (en) * | 2006-12-04 | 2008-06-19 | Toda Constr Co Ltd | Aseismatic ceiling structure, ceiling seismic response control device and installation method of ceiling seismic response control device |
| JP2017206728A (en) * | 2016-05-17 | 2017-11-24 | 株式会社明菱 | Molding material, molding device and manufacturing method of molded body |
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