JP2010150780A - Heat shield rubber mat - Google Patents
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- JP2010150780A JP2010150780A JP2008328598A JP2008328598A JP2010150780A JP 2010150780 A JP2010150780 A JP 2010150780A JP 2008328598 A JP2008328598 A JP 2008328598A JP 2008328598 A JP2008328598 A JP 2008328598A JP 2010150780 A JP2010150780 A JP 2010150780A
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- 235000020637 scallop Nutrition 0.000 claims abstract description 39
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 23
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 1
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 description 1
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- DFPJRUKWEPYFJT-UHFFFAOYSA-N 1,5-diisocyanatopentane Chemical compound O=C=NCCCCCN=C=O DFPJRUKWEPYFJT-UHFFFAOYSA-N 0.000 description 1
- QUPKOUOXSNGVLB-UHFFFAOYSA-N 1,8-diisocyanatooctane Chemical compound O=C=NCCCCCCCCN=C=O QUPKOUOXSNGVLB-UHFFFAOYSA-N 0.000 description 1
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- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
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- 230000001070 adhesive effect Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- POLCUAVZOMRGSN-UHFFFAOYSA-N dipropyl ether Chemical compound CCCOCCC POLCUAVZOMRGSN-UHFFFAOYSA-N 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
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- 238000005338 heat storage Methods 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
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- 150000002825 nitriles Chemical class 0.000 description 1
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- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
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- 239000005077 polysulfide Substances 0.000 description 1
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- 150000008117 polysulfides Polymers 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本発明は、建物の屋上、外廊下、バルコニー、ベランダ等の舗装面に敷設して使用する遮熱性ゴムマットに関するものである。 The present invention relates to a heat-insulating rubber mat that is used by being laid on a paved surface such as a roof of a building, an outer corridor, a balcony, and a veranda.
近年、都市部を中心に問題となっているヒートアイランド現象や地球温暖化にともない、特に、夏季における外気温が年々上昇しており、冷房負荷が増加し、建物の断熱、屋上緑化、植樹等の省エネ対策が実施されている。例えば、太陽光の輻射熱による建物の屋上の温度上昇を抑制する方法として、建物の屋上の下地上に防水シートを敷設するシート防水工法（特許文献１）や、断熱材の上に防水シートを敷設する断熱防水工法（特許文献２、特許文献３）や、プールサイド歩行面に敷設される樹脂製シートの表面に遮熱塗料の被膜を形成する方法（特許文献４）が使用されている。 In recent years, with the heat island phenomenon and global warming, which have become a problem mainly in urban areas, the outdoor temperature in summer has been increasing year by year, the cooling load has increased, building insulation, rooftop greening, tree planting, etc. Energy conservation measures are being implemented. For example, as a method of suppressing the temperature rise of the building roof due to the radiant heat of sunlight, a waterproof sheet construction method (Patent Document 1) in which a waterproof sheet is laid on the base of the building roof, or a waterproof sheet is laid on a heat insulating material Insulating and waterproofing (Patent Document 2, Patent Document 3) and a method of forming a thermal barrier coating film on the surface of a resin sheet laid on the poolside walking surface are used (Patent Document 4).
しかしながら、上記のいずれの工法も建物の屋上に、接着剤によりゴムシートあるいは合成樹脂からなる防水シートを貼り付けて施工がなされるが、夏季の長期間での使用により、ゴムシートあるいは防水シートは、熱劣化して、剥がれやすく、耐久性が低下する傾向にある。 However, in any of the above methods, construction is performed by attaching a waterproof sheet made of a synthetic resin or a rubber sheet to the roof of the building with an adhesive. It tends to peel off due to thermal deterioration, and the durability tends to decrease.
また、樹脂製シート等の表面に遮熱塗料の被膜を形成する方法は、夏季の長期間での使用で、遮熱塗料の被膜は、容易に剥離し易く、遮熱効果が小さく遮熱性がなかった。 In addition, the method of forming a thermal barrier coating on the surface of a resin sheet, etc. is for long-term use in summer, and the thermal barrier coating is easily peeled off, has a low thermal barrier effect and a low thermal barrier. There wasn't.
そのため、建物の屋上、外廊下、バルコニー、ベランダ等の舗装面と太陽光とを可能な限り、熱を遮断する必要がある。しかしながら、このような建物の屋上、外廊下、バルコニー、ベランダ等の舗装面は、人が歩行する場所でもあり、従来から知られているような防水シート又は断熱防水シートでは、夏季の長期間での使用において、熱変形を起こしたり、熱劣化して、剥がれやすく、歩行に対する高い耐磨耗性、耐候性及び耐久性がなかった。 Therefore, it is necessary to block heat as much as possible between pavement surfaces such as the rooftops of buildings, outer corridors, balconies, verandas, and sunlight. However, pavement surfaces such as rooftops, exterior corridors, balconies, and verandas of such buildings are also places where people walk, and with conventionally known waterproof sheets or heat-insulated waterproof sheets, long-term in summer In use, the material was easily deformed due to thermal deformation or heat deterioration, and had no high wear resistance, weather resistance and durability against walking.
本発明の目的は、かかる従来の問題点を解決するためになされたもので、建物の屋上、外廊下、バルコニー、ベランダ等の舗装面に敷設して使用し、ヒートアイランド現象を緩和すること、また、歩行に対する高い耐磨耗性、耐候性及び耐久性を備え、歩行における足への衝撃吸収を軽減し、歩行の安全性及び歩行の快適性を確保すること、しかも、安価で且つ、遮熱効果の大きな遮熱性ゴムマットを提供することを目的とするものである。また、埋め立て地に産業廃棄物として、大量に廃棄処理されるホタテ貝殻を有効利用することも目的とするものである。 An object of the present invention is to solve such a conventional problem, and is used by laying on a paved surface such as a rooftop of a building, an outer corridor, a balcony, a veranda, etc., to alleviate the heat island phenomenon. It has high wear resistance, weather resistance and durability against walking, reduces shock absorption to the foot during walking, ensures walking safety and walking comfort, and is inexpensive and heat-insulating An object of the present invention is to provide a heat-insulating rubber mat having a large effect. Another object of the present invention is to effectively use scallop shells that are disposed of in large quantities as industrial waste in landfills.
本発明は、種々検討を重ねた結果、ゴム原料を粉砕して得られたゴムチップに赤外線反射顔料として知られている酸化チタン粉末とホタテ貝殻微粉末とを特定の割合で混合することにより、ホタテ貝殻微粉末が持つ保水性効果と遮熱効果を発揮して、酸化チタン粉末単独で混合するゴムマットよりも、さらに一層の遮熱性能に優れたゴムマットが得られるとの知見を得られた。 As a result of various investigations, the present invention mixes titanium oxide powder known as an infrared reflecting pigment and scallop shell fine powder at a specific ratio with a rubber chip obtained by pulverizing a rubber raw material. The present inventors have obtained the knowledge that the water mat and the heat shielding effect possessed by the fine powder of the shell can be obtained, and that a rubber mat superior in heat shielding performance can be obtained as compared with the rubber mat mixed with the titanium oxide powder alone.
本発明は、上記の知見に基づき完成されたものであり、その第１の構成は、建物の屋上、外廊下、バルコニー、ベランダ等の舗装面に敷設して使用する遮熱性ゴムマットであって、ゴム原料を粉砕して得られたゴムチップに赤外線反射顔料とバインダーを混合させて成形した遮熱性ゴムマットである。 The present invention has been completed based on the above findings, and the first configuration thereof is a heat-insulating rubber mat used by being laid on a paved surface such as a rooftop of a building, an outer corridor, a balcony, a veranda, A heat-insulating rubber mat formed by mixing an infrared reflective pigment and a binder with a rubber chip obtained by pulverizing a rubber raw material.
第２の構成は、第１の構成において、赤外線反射顔料は、ゴムチップ１００重量部に対して０．１〜５重量部含有する遮熱性ゴムマットである。 The second configuration is a heat-insulating rubber mat that contains 0.1 to 5 parts by weight of the infrared reflective pigment with respect to 100 parts by weight of the rubber chip in the first configuration.
第３の構成は、第１または第２の構成において、バインダーは、ウレタン樹脂バインダーである遮熱性ゴムマットである。 A 3rd structure is a heat-insulating rubber mat which is a urethane resin binder in the 1st or 2nd structure.
第４の構成は、第１〜第３の構成のいずれかの構成において、バインダーは、ゴムチップ１００重量部に対して３〜３０重量部含有する遮熱性ゴムマットである。 A fourth configuration is the thermal insulation rubber mat according to any one of the first to third configurations, wherein the binder is contained in an amount of 3 to 30 parts by weight with respect to 100 parts by weight of the rubber chip.
第５の構成は、第１〜第４の構成のいずれかの構成において、さらにホタテ貝殻微粉末を混合させて成形した遮熱性ゴムマットである。 The fifth structure is a heat-insulating rubber mat formed by further mixing scallop shell fine powder in any one of the first to fourth structures.
第６の構成は、第１〜第５の構成のいずれかの構成において、ホタテ貝殻微粉末は、ゴムチップ１００重量部に対して２〜３０重量部含有する遮熱性ゴムマットである。 A sixth configuration is a heat insulating rubber mat according to any one of the first to fifth configurations, wherein the scallop shell fine powder contains 2 to 30 parts by weight with respect to 100 parts by weight of the rubber chip.
第７の構成は、第１〜第６の構成のいずれかの構成において、ゴムチップは、古タイヤ粉末、工業用ゴム製品屑粉末及びカラーチップ粉末からなる遮熱性ゴムマットである。 In a seventh configuration, in any one of the first to sixth configurations, the rubber chip is a heat insulating rubber mat made of old tire powder, industrial rubber product waste powder, and color chip powder.
ゴム原料を粉砕して得られたゴムチップに赤外線反射顔料として知られている酸化チタン粉末とホタテ貝殻微粉末を特定の割合で混合することにより、ホタテ貝殻微粉末が持つ保水性効果と遮熱効果を発揮して、酸化チタン粉末単独で混合するゴムマットよりも、さらに一層の遮熱性能に優れたゴムマットが得られる。また、ゴムチップに酸化チタン粉末とホタテ貝殻微粉末を混合して成形することにより、ゴムマットの表面に赤外線反射塗料を塗布するタイプに比べ、手間をかける必要もなく、赤外線反射塗料の被膜の剥離を招くこともない。 Water retention effect and heat shielding effect of scallop shell fine powder by mixing titanium oxide powder known as infrared reflective pigment and scallop shell fine powder in a specific ratio to rubber chip obtained by grinding rubber raw material As a result, a rubber mat superior in heat shielding performance can be obtained as compared with a rubber mat mixed with titanium oxide powder alone. In addition, by mixing and molding titanium oxide powder and scallop shell powder on a rubber chip, there is no need for labor compared to the type in which an infrared reflective paint is applied to the surface of a rubber mat, and the coating of the infrared reflective paint can be removed. There is no invitation.
建物の屋上、外廊下、バルコニー、ベランダ等の舗装面に敷設して使用し、ヒートアイランド現象を緩和すること、また、歩行に対する高い耐磨耗性、耐候性及び耐久性を備え、歩行における足への衝撃吸収を軽減し、歩行の安全性及び歩行の快適性を確保すること、しかも、施工及びメンテナンスが容易であり、リサイクル品のため、低価格で、一般のカラーゴム敷物及び黒ゴム板に比べ、安価に遮熱効果の大きな遮熱性ゴムマットを提供することができた。 Use on the rooftops, exterior corridors, balconies, verandas, etc. of the building to mitigate the heat island phenomenon, and also provide high wear resistance, weather resistance and durability for walking. To reduce the shock absorption, ensure walking safety and walking comfort, and are easy to install and maintain, and because it is a recycled product, it can be used for general color rubber rugs and black rubber plates. In comparison, a heat-insulating rubber mat having a large heat-insulating effect could be provided at low cost.
また、夏季において、太陽光に含まれる赤外線を効果的に反射し、建物の内部への蓄熱を抑え、エネルギー効率の向上が期待されます。遮熱性ゴムマットの色調にもよるが、最大１０〜２０℃の屋上での表面温度差をつけ、建物の内部への蓄熱を抑えることができる。本発明の遮熱性ゴムマットは、日射反射率が高いので、建物内の冷房負荷を大幅に低減することができる。 In summer, the infrared rays contained in sunlight are effectively reflected to reduce the heat stored inside the building and improve energy efficiency. Although it depends on the color tone of the heat-insulating rubber mat, a maximum surface temperature difference of 10 to 20 ° C. can be provided, and heat storage inside the building can be suppressed. Since the heat-insulating rubber mat of the present invention has a high solar reflectance, the cooling load in the building can be greatly reduced.
以下、本発明を詳細に説明する。先ず、本発明の遮熱性ゴムマットについて説明する。本発明の遮熱性ゴムマットは、ゴム原料から粉砕されたゴムチップと赤外線反射顔料とバインダーとホタテ貝殻微粉末にて構成される。 Hereinafter, the present invention will be described in detail. First, the heat insulating rubber mat of the present invention will be described. The heat-insulating rubber mat of the present invention is composed of a rubber chip pulverized from a rubber raw material, an infrared reflective pigment, a binder, and scallop shell fine powder.
ゴムチップを構成するゴム材料としては、特に、制限されないが、具体的には、天然ゴム、イソプレンゴム、ブタジエンゴム、クロロプレンゴム、アクリルニトリル−ブタジエンゴム、スチレン−ブタジエンゴム、エチレン−プロピレンゴム、エチレン−プロピレン−ジエンゴム、ブチルゴム、ハロゲン化ブチルゴム、アクリルゴム、エチレン−アクリルゴム、多硫化ゴム、エピクロルヒドリンゴム、ニトリルゴム−塩化ビニル樹脂ブレンド、ニトリルゴム／ＥＰＤＭブレンド等が挙げられ、これらは、古タイヤ等の廃ゴムに由来していてもよい。本発明においては、産業廃棄物の有効利用及びコストの観点から、廃ゴムの使用が推奨される。特に、エチレン−プロピレン−ジエンゴムが好適に使用される。 The rubber material constituting the rubber chip is not particularly limited. Specifically, natural rubber, isoprene rubber, butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, styrene-butadiene rubber, ethylene-propylene rubber, ethylene- Examples include propylene-diene rubber, butyl rubber, halogenated butyl rubber, acrylic rubber, ethylene-acrylic rubber, polysulfide rubber, epichlorohydrin rubber, nitrile rubber-vinyl chloride resin blend, nitrile rubber / EPDM blend, and the like. It may be derived from waste rubber. In the present invention, use of waste rubber is recommended from the viewpoint of effective use of industrial waste and cost. In particular, ethylene-propylene-diene rubber is preferably used.
上記のゴム材料は、所定の形状と一定の大きさを備えたゴムチップとして使用される。ゴムチップの形状は、特に、制限されず、通常の形態である粒状でもよいが、相互の絡み合いが生じ易い細長形状のゴムチップの存在により、後述するバインダーによる一体化が容易となる。例えば、廃ゴム利用の場合は、チップ状に粉砕処理する必要があるが、この際の粉砕条件により、粒状チップ又は捲縮化された細長形状（海藻のヒジキに類似した形状）チップにすることが出来る。捲縮化された細長形状チップ（ヒジキ状チップ）の捲縮率（捲縮を伸ばしたときの長さと元の長さの差の、伸ばしたときの長さの百分率）は、通常、１〜２０％、好ましくは、５〜１０％とされる。 The rubber material is used as a rubber chip having a predetermined shape and a certain size. The shape of the rubber chip is not particularly limited and may be a granule in a normal form. However, due to the presence of an elongated rubber chip that tends to be entangled with each other, integration with a binder described later becomes easy. For example, in the case of using waste rubber, it is necessary to pulverize into chips. Depending on the pulverization conditions at this time, the chips should be made into granular chips or crimped slender shapes (similar to seaweed hijiki) chips. I can do it. The crimp rate of the crimped elongated chip (hijiki-shaped chip) (the percentage of the length when stretched, the difference between the length when the crimp is stretched and the original length) is usually from 1 to 20%, preferably 5 to 10%.
そして、粒状チップの場合は、１〜３ｍｍ程度の小粒状チップ、３〜５ｍｍ程度の大粒状チップ等を調製することが出来、また、ヒジキ状チップの場合は、５〜１０ｍｍ程度の小ヒジキ状チップ、１０〜２０ｍｍ程度の大ヒジキ状チップ等を調製することが出来る。上記のヒジキ状チップのアスペクト比（長さ／直径）は、いずれも、通常１．５〜２０、好ましくは、２．５〜１０である。 And in the case of a granular chip, a small granular chip of about 1 to 3 mm, a large granular chip of about 3 to 5 mm, etc. can be prepared. Chips, large hijiki chips of about 10 to 20 mm, etc. can be prepared. The aspect ratio (length / diameter) of the above hinoki chip is usually 1.5 to 20, preferably 2.5 to 10.
赤外線反射顔料としては、例えば、酸化チタン、チタン白、酸化亜鉛、硫化亜鉛、亜鉛華、酸化アルミニウム、硫酸バリウム等の白色顔料が使用される。特に、波長１．４〜３．０μｍにおける赤外線透過率が３．０％である平均粒子径１．０μｍのルチル型酸化チタンが好適に使用される。 Examples of the infrared reflective pigment include white pigments such as titanium oxide, titanium white, zinc oxide, zinc sulfide, zinc white, aluminum oxide, and barium sulfate. In particular, rutile titanium oxide having an average particle diameter of 1.0 μm and an infrared transmittance of 3.0% at a wavelength of 1.4 to 3.0 μm is preferably used.
また、白色顔料以外の赤外線反射顔料としては、フタロシアニングリーンの緑色系や、フタロシアニンブルーの青色系や、酸化鉄、キナクリドンレッドの赤色系や、モノアゾ系イエローの黄色系顔料が使用される。黒色系の遮熱顔料としては、ＣｏＯ／Ｃｒ２Ｏ３／Ｆｅ２Ｏ３を含有する焼成顔料、ＣｕＯ／Ｃｒ２Ｏ３／Ｍｎ２Ｏ３を含有する焼成顔料、アゾメチン基の残基を有するアゾ系有機顔料が使用される。 Further, as infrared reflecting pigments other than white pigments, green pigments of phthalocyanine green, blue pigments of phthalocyanine blue, red pigments of iron oxide and quinacridone red, and monoazo yellow pigments of yellow are used. As the black heat-shielding pigment, it has a calcined pigment containing CoO / Cr 2 O 3 / Fe 2 O 3 , a calcined pigment containing CuO / Cr 2 O 3 / Mn 2 O 3, and an azomethine group residue. Azo-based organic pigments are used.
バインダー（合成樹脂結合剤）としては、一液性ウレタンで通常のウレタン原料が用いられる。特に、無黄変ウレタン樹脂バインダーが好適に使用される。本発明のウレタン反応に使用されるポリイソシアネートには、ポリイソシアネート化合物のみならず、ポリイソシアネートとポリエステルポリオール又はポリエーテルポリオールが用いられる。ポリイソシアネート化合物としては、例えば、テトラメチレンジイソシアネート、ペンタメチレンジイソシアネート、ヘキサメチレンジイソシアネート、オクタメチレンジイソシアネート、ジプロピルエーテル３，３’−ジイソシアネート、ジシクロヘキシルメタン−４，４’−ジイソシアネ−ト、１，４−シクロヘキシレンジイソシアネート、イソホロンジイソシアネート、ジフェニルメタン−４，４’−ジイソシアネート、公知の各種変性ジフェニルメタン−４，４’−ジイソシアネート、メタフェニレンジイソシアネート、２，４−トリレンジイソシアネート、２，６−トリレンジイソシアネート等及びフェニルメタン−４，４’−ジイソシアネート等及びジフェニルメタン−４，４−ジイソシアネートこれらは単独又は混合して用いられる。
As the binder (synthetic resin binder), an ordinary urethane raw material is used as a one-component urethane. In particular, a non-yellowing urethane resin binder is preferably used. As the polyisocyanate used in the urethane reaction of the present invention, not only a polyisocyanate compound but also a polyisocyanate and a polyester polyol or a polyether polyol are used. Examples of the polyisocyanate compound include tetramethylene diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate, octamethylene diisocyanate,
また、上記以外の一液性ウレタンとして、水酸基末端液状ポリブダジエン、水酸基末端液状ポリイソプレン、水酸基末端液状ポリオレフィンが使用される。 As one-component urethane other than the above, hydroxyl-terminated liquid polybutadiene, hydroxyl-terminated liquid polyisoprene, and hydroxyl-terminated liquid polyolefin are used.
ポリエステルポリエールは、ジカルボン酸とポリオールとの組み合わせによって、通常の方法により得られる。ポリエーテルポリオールを通常の方法により得られる。本発明に使用する活性水素化合物は、ポリアミンおよび／またはポリオールであり、ポリアミンとしては、エチレンジアミン、テトラメチレンジアミン、ヘキサメチレンジアミン、ｐ−フェニレンジアミン、３，３’−ジクロル−４，４’−ジアミノジフェニルメタン等が用いられる。 The polyester polyol can be obtained by a usual method using a combination of a dicarboxylic acid and a polyol. The polyether polyol can be obtained by a usual method. The active hydrogen compound used in the present invention is a polyamine and / or polyol, and examples of the polyamine include ethylenediamine, tetramethylenediamine, hexamethylenediamine, p-phenylenediamine, 3,3′-dichloro-4,4′-diamino. Diphenylmethane or the like is used.
触媒としては、公知のアミン類、有機金属化合物（錫、鉛等）の促進剤が用いられる。
本発明は、ゴムチップ１００重量部に対して、触媒０．０５〜０．５重量部を使用する。
As the catalyst, known amines and promoters of organometallic compounds (tin, lead, etc.) are used.
In the present invention, 0.05 to 0.5 parts by weight of the catalyst is used with respect to 100 parts by weight of the rubber chip.
本発明においては、ゴムマットにさらに一層の遮熱性を付与するために、産業廃棄物として大量に廃棄処理されるホタテ貝殻の有効利用の観点から、３５０〜４５０℃の酸化性雰囲気で焼成したホタテ貝殻微粉末の使用が推奨される。特に、ホタテ貝殻微粉末は、多孔質であるため、多孔質の空隙内に水分を保持する保水性効果がある。また、主成分が炭酸カルシウムであるので、遮熱効果がある。ホタテ貝殻微粉末としては、形状が粉末状で、寸法が大きさ平均粒子径１００μｍ程度のものが好ましい。 In the present invention, scallop shells baked in an oxidizing atmosphere at 350 to 450 ° C. from the viewpoint of effective use of scallop shells that are disposed of in large quantities as industrial waste in order to impart further heat insulation to the rubber mat. The use of fine powder is recommended. In particular, since scallop shell fine powder is porous, it has a water retention effect to retain moisture in the porous voids. Further, since the main component is calcium carbonate, there is a heat shielding effect. The scallop shell fine powder preferably has a powder shape, a size and a mean particle diameter of about 100 μm.
本発明の遮熱性ゴムマットにおいて、ゴムチップ１００重量部に対する割合として、赤外線反射顔料の酸化チタン粉末の使用量は、通常０．１〜５重量部、好ましくは０．３〜３重量部、赤外線反射顔料の酸化チタン粉末の使用量が、０．１重量部未満の場合は、成形体中の個々のゴムチップの被覆が不十分となり、また、５重量部を超える場合は、ゴムマットの折り曲げ強度が低下する。ウレタン樹脂バインダーの使用量は、ゴムチップ１００重量部に対して、通常３〜３０重量部、好ましくは１０〜２０重量部とされる。一方、ウレタン樹脂バインダーの使用量が３重量部未満の場合は、ゴムチップ同士の結合効果が不十分となり、分散しにくい。３０重量部を超える場合は、粘性が高くなり、作業性が悪くなり、コスト的に高くなる。ホタテ貝殻微粉末の使用量は、通常２〜３０重量部、好ましくは５〜２０重量部とされる。ホタテ貝殻微粉末の使用量が、２重量部未満の場合は、成形体中の個々のゴムチップの被覆が不十分となると同時に遮熱効果も不十分となる。また、３０重量部を超える場合は、ゴムマットの折り曲げ強度が低下する。 In the heat-insulating rubber mat of the present invention, the amount of the titanium oxide powder used as the infrared reflective pigment is usually 0.1 to 5 parts by weight, preferably 0.3 to 3 parts by weight, as a ratio to 100 parts by weight of the rubber chip. When the amount of the titanium oxide powder used is less than 0.1 parts by weight, the coating of the individual rubber chips in the molded body becomes insufficient, and when it exceeds 5 parts by weight, the bending strength of the rubber mat is lowered. . The usage-amount of a urethane resin binder is normally 3-30 weight part with respect to 100 weight part of rubber chips, Preferably it is 10-20 weight part. On the other hand, when the usage-amount of a urethane resin binder is less than 3 weight part, the bonding effect of rubber chips becomes inadequate and it is hard to disperse | distribute. When it exceeds 30 parts by weight, the viscosity becomes high, workability becomes poor, and the cost becomes high. The amount of scallop shell fine powder used is usually 2 to 30 parts by weight, preferably 5 to 20 parts by weight. When the amount of scallop shell powder used is less than 2 parts by weight, the coating of the individual rubber chips in the molded body becomes insufficient and at the same time the heat shielding effect becomes insufficient. Moreover, when it exceeds 30 weight part, the bending strength of a rubber mat will fall.
本発明の遮熱性ゴムマットには、必要に応じて、従来、公知のゴム製品に使用されている添加剤、例えば、老化防止剤、充填剤、補強性充填剤、加工助剤、加硫剤、加硫促進剤等を配合してもよい。上記の充填剤としては、カーボンブラック、ホワイトカーボン等が好適である。 In the heat-insulating rubber mat of the present invention, if necessary, additives conventionally used in known rubber products, such as anti-aging agents, fillers, reinforcing fillers, processing aids, vulcanizing agents, You may mix | blend a vulcanization accelerator etc. As said filler, carbon black, white carbon, etc. are suitable.
本発明の遮熱性ゴムマットは、軽量化の観点から、その空隙率が５〜８０％、特に、２０〜６０％であることが好ましい。したがって、適度の弾力性を持ち、透水性があり、雨後でも水溜まりなく、安心して歩行できる等の安全性の高い長尺床材を工場生産品として提供される。 The heat-insulating rubber mat of the present invention preferably has a porosity of 5 to 80%, particularly 20 to 60%, from the viewpoint of weight reduction. Therefore, a highly safe long flooring that has moderate elasticity, water permeability, does not collect water even after rain, and can walk safely can be provided as a factory-produced product.
次に、本発明に係る遮熱性ゴムマットの製造方法について説明する。本発明に係る遮熱性ゴムマットの製造方法は、以下に説明する粉砕工程と混合工程と成形工程とを包含する。 Next, the manufacturing method of the heat-insulating rubber mat according to the present invention will be described. The manufacturing method of the heat-insulating rubber mat according to the present invention includes a pulverization process, a mixing process, and a molding process described below.
（粉砕工程）
粉砕工程においては、ゴム原料としての古タイヤ等の廃ゴムを１〜３ｍｍの粒径のチップ状に粉砕処理して使用する。また、カラーゴムチップの場合、カラーＥＰＤＭ粉末ゴムを粉砕処理して使用する。粉砕機としては、例えば、カッター式粉砕機や衝撃式粉砕機等を使用することが出来る。粉砕処理後、必要に応じて、篩分処理してゴムチップから補強繊維（タイヤコード）等の不要物を除去する。
(Crushing process)
In the pulverization step, waste rubber such as old tires as a rubber raw material is used after being pulverized into chips having a particle diameter of 1 to 3 mm. In the case of a color rubber chip, color EPDM powder rubber is used after being pulverized. As the pulverizer, for example, a cutter pulverizer or an impact pulverizer can be used. After the pulverization treatment, if necessary, sieving treatment is performed to remove unnecessary materials such as reinforcing fibers (tire cords) from the rubber chips.
（混合工程）
混合工程においては、ゴムチップと赤外線反射顔料である酸化チタン粉末とホタテ貝殻微粉末をゴムのチップ形態が溶融消滅しない条件下に混合する。ミキサーとしては、モルタルミキサー、ヘンシェルミキサー、バンバリーミキサー、インターミックスニーダー、オープンロール等を使用することが出来る。ミキサー内の混合物の温度は、ミキサーに通す冷却水によって調節することが出来る。混合物の温度が上がり過ぎてゴムのチップ形態が溶融消滅した場合は、ゴムの連続マトリックス中に赤外線反射顔料が分散配合された構造の成形体が得られ、個々のゴムチップの表面に赤外線反射顔料が付着した構造を有する本発明のゴムマットは得られない。斯かる観点から、低速ミキサーであるモルタルミキサーの使用が推奨される。
(Mixing process)
In the mixing step, the rubber chip, the titanium oxide powder that is an infrared reflecting pigment, and the scallop shell fine powder are mixed under the condition that the rubber chip form does not melt and disappear. As the mixer, a mortar mixer, a Henschel mixer, a Banbury mixer, an intermix kneader, an open roll, or the like can be used. The temperature of the mixture in the mixer can be adjusted by cooling water passed through the mixer. When the temperature of the mixture rises too much and the rubber chip form melts and disappears, a molded body having a structure in which the infrared reflective pigment is dispersed and blended in a continuous matrix of rubber is obtained, and the infrared reflective pigment is applied to the surface of each rubber chip. The rubber mat of the present invention having an attached structure cannot be obtained. From such a viewpoint, use of a mortar mixer which is a low speed mixer is recommended.
（成形工程）
成形工程においては、酸化チタン粉末とホタテ貝殻微粉末が混合されたゴムチップ４０ｋｇを使用し、一液性ウレタン樹脂バインダー６ｋｇとを加え、攪拌混合した。この攪拌混合物をホッパーから、所定の幅になるようにしたコンベアの表面の不織布上に落下させ、コンベアとドクターナイフ及び転圧ローラの間隔を所定の厚さの間隔に設定し、この間隔を通して、コンベアを起動することにより、所定の幅と厚さの攪拌混合物を、速度０．６ｍ／分でコンベアの上で１８ｍライン長のオーブン加熱炉内を通過し、温度１２０℃で３０分間加熱して硬化させ、不織布は、オーブン加熱炉の出口側で巻き取り回収し、サイドトリムカッター及びカッターで１０ｍｍ厚、１ｍ幅、５ｍ長の長尺ゴムマットを製造した。
(Molding process)
In the molding process, 40 kg of rubber chips mixed with titanium oxide powder and fine scallop shell powder were used, and 6 kg of a one-component urethane resin binder was added and mixed with stirring. This stirring mixture is dropped from the hopper onto the nonwoven fabric on the surface of the conveyor having a predetermined width, and the interval between the conveyor, the doctor knife and the rolling roller is set to a predetermined thickness interval, and through this interval, By starting the conveyor, the stirring mixture having a predetermined width and thickness is passed through an 18 m line length oven heating furnace at a speed of 0.6 m / min and heated at a temperature of 120 ° C. for 30 minutes. The cured nonwoven fabric was wound up and collected on the outlet side of the oven heating furnace, and a long rubber mat having a thickness of 10 mm, a width of 1 m, and a length of 5 m was manufactured with a side trim cutter and a cutter.
製造されたゴムマットは、粉末ゴム製品の長尺シートを工場生産により、提供することを実現した。そして、１０ｍｍ厚に製造されたゴムマットは、スライサーにより、５ｍｍ厚さのシートに裁断することができる。また、該ゴムマットは、約１〜１０ｍｍの粒子を固めているため、通常のゴム板に比べて滑りにくく、しかも、チップを固めているため、空隙率が約４０％であり、適度の弾力性を持ち、透水性があり、雨後でも水溜まりなく、安心して歩行できる等の安全性の高い長尺床材を、工場生産品として提供される。 The manufactured rubber mat was able to provide long sheets of powder rubber products through factory production. The rubber mat manufactured to a thickness of 10 mm can be cut into a sheet having a thickness of 5 mm by a slicer. In addition, the rubber mat has hardened particles of about 1 to 10 mm, so it is less slippery than a normal rubber plate, and since the chip is hardened, the porosity is about 40%, and moderate elasticity Long flooring with high safety, such as having high water permeability, water permeability, no water accumulation even after rain, and being able to walk safely.
本発明の遮熱性ゴムマットは、遮熱性に優れる他、軽量で、且つ、弾性を有するため、特に、吸音材、遮音材、防振材として各種の用途に好適に使用される。 The heat-insulating rubber mat of the present invention is not only excellent in heat-insulating properties, but also lightweight and elastic, so that it is particularly suitably used for various applications as a sound-absorbing material, sound-insulating material, and vibration-proofing material.
以下、本発明を実施例により、更に詳細に説明するが、本発明は、その要旨を超えない限り、以下の実施例に限定されるものではない。 EXAMPLES Hereinafter, although an Example demonstrates this invention still in detail, this invention is not limited to a following example, unless the summary is exceeded.
（実施例１）
ゴム原料としては、粉砕されたゴムチップを使用し、バインダーとしては、第一工業製薬株式会社製のウレタン樹脂ハインダー「モノタック４８０」を使用し、赤外線反射顔料としては、テイカ株式会社製の商品名：ＪＲ−１０００ １．０μｍの平均粒子径を有するルチル型酸化チタン粉末を使用し、さらに、ゴムチップ１００重量部に対して、株式会社北海道裕雅製の商品名：ホタテ貝殻リサイクル「夢の砂」大きさ平均粒子径１００μｍを有するホタテ貝殻微粉末５重量部を配合して成形したゴムマット供試体を用意した。
Example 1
As the rubber material, crushed rubber chips are used, as the binder, a urethane resin hinder “MonoTac 480” manufactured by Daiichi Kogyo Seiyaku Co., Ltd. is used, and as the infrared reflective pigment, trade names of Teika Corporation are used: JR-1000 A rutile type titanium oxide powder having an average particle size of 1.0 μm is used. Further, 100 parts by weight of rubber chips are used for the product name of Yumasa Hokkaido Co., Ltd. A rubber mat specimen prepared by blending 5 parts by weight of scallop shell fine powder having an average particle size of 100 μm was prepared.
（実施例２）
実施例１と同様な組成でホタテ貝殻微粉末の配合量が１０重量部のゴムマット供試体を用意した。
(Example 2)
A rubber mat specimen having the same composition as in Example 1 and containing 10 parts by weight of scallop shell fine powder was prepared.
（実施例３）
実施例１と同様な組成でホタテ貝殻微粉末の配合量が１５重量部のゴムマット供試体を用意した。
(Example 3)
A rubber mat specimen having the same composition as that of Example 1 and containing 15 parts by weight of scallop shell fine powder was prepared.
（比較例１）
黒の粉末ゴム（廃ゴム）を粉砕したゴムチップを使用し、バインダーとしては、ウレタン樹脂ハインダーを使用し、赤外線反射顔料とホタテ貝殻微粉末を除いたゴムマット供試体を用意した。
(Comparative Example 1)
A rubber chip obtained by pulverizing black powder rubber (waste rubber) was used, a urethane resin hinder was used as a binder, and a rubber mat specimen was prepared by removing infrared reflection pigment and scallop shell fine powder.
（比較例２）
緑のカラーＥＰＤＭ粉末ゴムを粉砕したカラーゴムチップを使用し、バインダーとしては、ウレタン樹脂ハインダーを使用し、赤外線反射顔料とホタテ貝殻微粉末を除いたゴムマット供試体を用意した。
(Comparative Example 2)
A color rubber chip obtained by pulverizing green color EPDM powder rubber was used, a urethane resin hinder was used as a binder, and a rubber mat specimen was prepared by removing infrared reflection pigment and scallop shell fine powder.
（比較例３）
白のカラーＥＰＤＭ粉末ゴムを粉砕したカラーゴムチップを使用し、バインダーとしては、ウレタン樹脂ハインダーを使用し、赤外線反射顔料とホタテ貝殻微粉末を除いたゴムマット供試体を用意した。
(Comparative Example 3)
A color rubber chip obtained by pulverizing white color EPDM powder rubber was used, a urethane resin hinder was used as a binder, and a rubber mat specimen was prepared by removing infrared reflection pigment and scallop shell fine powder.
なお、比較例１〜３は、いずれも赤外線反射顔料とホタテ貝殻微粉末を含有していないゴムマット供試体を用いた。 In each of Comparative Examples 1 to 3, rubber mat specimens containing no infrared reflective pigment and scallop shell fine powder were used.
＜屋内遮熱性試験１＞
図１に示すように赤外線ランプ２を使用して、室内における赤外線ランプ照射による屋内遮熱性試験を行った。まず、室温２３℃に設定した恒温室内で１０ｍｍ厚、１５ｃｍ幅、１５ｃｍ長のサイズのゴムマット１を２ｍｍ厚、内側寸法１４．５ｃｍ幅、９．５ｃｍ長、１４ｃｍ高さのサイズの上方を開放した発泡スチロール製の箱３上に載置した。ゴムマット表面から上方１５ｃｍ離れた高さ位置に、１００Ｗ赤外線ランプを設置して、この赤外線ランプで各ゴムマット供試体の表面を照射する。そして、ゴムマット表面温度、ゴムマット裏面温度及び箱内温度について、以下に示す方法に基づいて１分毎に６０分間測定を行った。
<Indoor
Using an infrared lamp 2 as shown in FIG. 1, an indoor thermal insulation test was performed by infrared lamp irradiation indoors. First, a 10 mm thick, 15 cm wide, 15 cm
実施例１〜３及び比較例１〜３の厚さ１０ｍｍのゴムマット供試体の配合表を表１に示す。 Table 1 shows a compounding table of rubber mat specimens having a thickness of 10 mm in Examples 1 to 3 and Comparative Examples 1 to 3.
＜ゴムマット表面温度＞
ゴムマット表面に取り付けた熱電対温度計によって、測定時におけるゴムマット表面の温度を測定した。
＜ゴムマット裏面温度＞
ゴムマット裏面に取り付けた熱電対温度計によって、測定時におけるゴムマット裏面の温度を測定した。
＜箱内温度＞
発泡スチロール製の箱内温度は、予めゴムマットの底面から７ｃｍ下方位置に箱の横から穴をあけ、その穴に熱電対温度計を差し込んで箱内の中心温度を測定した。
<Rubber mat surface temperature>
The temperature of the rubber mat surface at the time of measurement was measured by a thermocouple thermometer attached to the rubber mat surface.
<Rubber mat back surface temperature>
The temperature of the back surface of the rubber mat at the time of measurement was measured by a thermocouple thermometer attached to the back surface of the rubber mat.
<In-box temperature>
As for the temperature inside the box made of polystyrene foam, a hole was made in advance from the side of the box at a position 7 cm below the bottom of the rubber mat, and a thermocouple thermometer was inserted into the hole to measure the center temperature inside the box.
ホタテ貝殻微粉末の配合量とゴムマット表面温度の関係を表すグラフを図２に、ホタテ貝殻微粉末の配合量とゴムマット裏面温度の関係を表すグラフを図３に、ホタテ貝殻微粉末の配合量と箱内温度の関係を表すグラフを図４に示す。 A graph showing the relationship between the amount of scallop shell fine powder and the surface temperature of the rubber mat is shown in FIG. 2, a graph showing the relationship between the amount of scallop shell fine powder and the temperature of the back surface of the rubber mat is shown in FIG. A graph showing the relationship between the temperature in the box is shown in FIG.
図２に示すように、黒のゴムマットの比較例１は、４０分経過後には、表面温度が７０℃になった。また、緑のゴムマットの比較例２は、約３０分経過後には、表面温度が６０℃になった。白のゴムマットの比較例３と、酸化チタン粉末とホタテ貝殻微粉末を配合した実施例１〜３は、４０分経過後には、表面温度が約５０℃になり、黒のゴムマットの比較例１と比較して、約２０℃程度の表面温度差があり、また、緑のゴムマットの比較例２と比較して、約１０℃程度の表面温度差があり、低い値であることが分かった。白のゴムマットの比較例３と、酸化チタン粉末とホタテ貝殻微粉末を配合した実施例１〜３は、ゴムマットの表面温度の上昇抑制効果の面で優れていることが判明した。また、白のゴムマットの比較例３は、日射反射率が黒のゴムマットの比較例１と緑のゴムマットの比較例２より高いので、ゴムマット表面温度の上昇が低減できることが確認された。 As shown in FIG. 2, the comparative example 1 of the black rubber mat had a surface temperature of 70 ° C. after 40 minutes. Further, in Comparative Example 2 of the green rubber mat, the surface temperature became 60 ° C. after about 30 minutes. In Comparative Example 3 of the white rubber mat and Examples 1 to 3 in which the titanium oxide powder and the fine powder of scallop shell were blended, the surface temperature became about 50 ° C. after 40 minutes, and the comparative example 1 of the black rubber mat In comparison, there was a surface temperature difference of about 20 ° C., and there was a surface temperature difference of about 10 ° C. compared to Comparative Example 2 of the green rubber mat, which was found to be a low value. It turned out that the comparative example 3 of a white rubber mat and Examples 1-3 which mix | blended titanium oxide powder and scallop shell fine powder were excellent in the surface suppression effect of the surface temperature of a rubber mat. Moreover, since the comparative example 3 of the white rubber mat has higher solar reflectance than the comparative example 1 of the black rubber mat and the comparative example 2 of the green rubber mat, it was confirmed that the increase in the rubber mat surface temperature can be reduced.
図３に示すように、黒のゴムマットの比較例１は、６０分経過後には、裏面温度が約６５℃になった。また、緑のゴムマットの比較例２は、６０分経過後には、裏面温度が約５７℃になった。白のゴムマットの比較例３と、酸化チタン粉末とホタテ貝殻微粉末を配合した実施例１〜２は、６０分経過後には、裏面温度が約５０℃なり、黒のゴムマットの比較例１と比較して、約１５℃程度の裏面温度差があり、また、緑のゴムマットの比較例２と比較して、約８℃程度の裏面温度差があり、低い値であることが分かった。白のゴムマットの比較例３と、酸化チタン粉末とホタテ貝殻微粉末を配合した実施例１〜３は、ゴムマットの裏面温度の上昇抑制効果の面で優れていることが判明した。また、白のゴムマットの比較例３は、日射反射率が黒のゴムマットの比較例１と緑のゴムマットの比較例２より高いので、ゴムマット裏面温度の上昇が低減できることが確認された。 As shown in FIG. 3, in the comparative example 1 of the black rubber mat, the back surface temperature became about 65 ° C. after 60 minutes. Further, in Comparative Example 2 of the green rubber mat, the back surface temperature became about 57 ° C. after 60 minutes. Comparative Example 3 of the white rubber mat and Examples 1 and 2 in which the titanium oxide powder and the fine powder of scallop shell were blended had a back surface temperature of about 50 ° C. after 60 minutes, and compared with Comparative Example 1 of the black rubber mat. Thus, it was found that there was a back surface temperature difference of about 15 ° C., and there was a back surface temperature difference of about 8 ° C. as compared with Comparative Example 2 of the green rubber mat, which was a low value. It turned out that the comparative example 3 of a white rubber mat and Examples 1-3 which mix | blended the titanium oxide powder and the scallop shell fine powder were excellent in the surface suppression effect of the back surface temperature of a rubber mat. Further, in Comparative Example 3 of the white rubber mat, since the solar reflectance was higher than that of Comparative Example 1 of the black rubber mat and Comparative Example 2 of the green rubber mat, it was confirmed that an increase in the temperature of the rubber mat back surface could be reduced.
図４に示すように、黒のゴムマットの比較例１は、６０分経過後には、箱内温度が約４３℃になった。また、緑のゴムマットの比較例２は、６０分経過後には、箱内温度が約３９℃になった。白のゴムマットの比較例３と、酸化チタン粉末とホタテ貝殻微粉末を配合した実施例１〜３は、６０分経過後には、箱内温度が約３５〜３８℃になり、黒のゴムマットの比較例１と比較して、約５℃程度の表面温度差があり、低い値であることが分かった。白のゴムマットの比較例３と、酸化チタン粉末とホタテ貝殻微粉末を配合した実施例１〜３は、箱内温度の上昇抑制効果の面で優れていることが判明した。また、白のゴムマットの比較例３は、日射反射率が黒のゴムマットの比較例１と緑のゴムマットの比較例２より高いので、箱内温度の上昇が低減できることが確認された。 As shown in FIG. 4, the comparative example 1 of the black rubber mat had a temperature in the box of about 43 ° C. after 60 minutes. Further, in Comparative Example 2 of the green rubber mat, the temperature in the box reached about 39 ° C. after 60 minutes. In Comparative Example 3 of the white rubber mat and Examples 1 to 3 in which the titanium oxide powder and the fine powder of scallop shell were blended, the temperature in the box reached about 35 to 38 ° C. after 60 minutes, and the comparison with the black rubber mat. Compared with Example 1, it was found that there was a difference in surface temperature of about 5 ° C., which was a low value. It turned out that the comparative example 3 of a white rubber mat and Examples 1-3 which mix | blended the titanium oxide powder and the scallop shell fine powder were excellent in the surface rise inhibitory effect. Moreover, since the comparative example 3 of the white rubber mat has higher solar reflectance than the comparative example 1 of the black rubber mat and the comparative example 2 of the green rubber mat, it was confirmed that the increase in the temperature in the box can be reduced.
したがって、白のゴムマットの実施例１〜３は、カラーゴムマットの比較例１と比較例２と比較して、日射反射率が高いので、ゴムマット表面温度、ゴムマット裏面温度及び箱内温度のいずれも低い値で優れていることが判明した。 Accordingly, Examples 1 to 3 of the white rubber mat have higher solar reflectance as compared with Comparative Example 1 and Comparative Example 2 of the color rubber mat. Therefore, the rubber mat surface temperature, the rubber mat back surface temperature, and the box internal temperature are all low. The value was found to be excellent.
次に、ゴムマットの厚さを５ｍｍ、１０ｍｍ、１５ｍｍ、２０ｍｍと変化させた場合のゴムマットの表面、裏面及び箱内の温度上昇を計測した。ゴムマットの厚さとゴムマット表面温度の関係を表すグラフを図５に、ゴムマットの厚さとゴムマット裏面温度の関係を表すグラフを図６に、ゴムマットの厚さと箱内温度の関係を表すグラフを図７に示す。 Next, when the thickness of the rubber mat was changed to 5 mm, 10 mm, 15 mm, and 20 mm, the temperature rise in the surface, the back surface, and the box of the rubber mat was measured. FIG. 5 is a graph showing the relationship between the rubber mat thickness and the rubber mat surface temperature, FIG. 6 is a graph showing the relationship between the rubber mat thickness and the rubber mat back surface temperature, and FIG. 7 is a graph showing the relationship between the rubber mat thickness and the temperature inside the box. Show.
実施例４〜７のゴムマットの厚さを変化させたゴムマット供試体の配合表を表２に示す。 Table 2 shows a blending table of rubber mat specimens in which the thicknesses of the rubber mats of Examples 4 to 7 were changed.
図５に示すように、実施例４〜７のゴムマット供試体は、ゴムマットの表面温度は、いずれも約５０℃で同程度の温度上昇で差がないことが判明した。 As shown in FIG. 5, the rubber mat specimens of Examples 4 to 7 were found to have no difference in the surface temperature of the rubber mat at about 50 ° C. with the same temperature increase.
図６に示すように、実施例６の厚さが１５ｍｍのゴムマット供試体と実施例７の厚さが２０ｍｍのゴムマット供試体は、ゴムマットの裏面温度の上昇抑制効果の面で優れていることが判明した。 As shown in FIG. 6, the rubber mat specimen of Example 6 having a thickness of 15 mm and the rubber mat specimen of Example 7 having a thickness of 20 mm are excellent in the effect of suppressing the increase in the back surface temperature of the rubber mat. found.
図７に示すように、実施例６の厚さが１５ｍｍのゴムマット供試体と実施例７の厚さが２０ｍｍのゴムマット供試体は、箱内温度の上昇抑制効果の面で優れていることが判明した。すなわち、ゴムマットの厚さを厚くすることにより、箱内温度の上昇抑制効果の面で優れていることが確認された。しかしながら、ゴムマットの厚さが２０ｍｍを超えると成形上困難を伴い、コスト的に高くなる。 As shown in FIG. 7, the rubber mat specimen having a thickness of 15 mm in Example 6 and the rubber mat specimen having a thickness of 20 mm in Example 7 were found to be excellent in terms of the effect of suppressing the increase in the temperature inside the box. did. That is, it was confirmed that by increasing the thickness of the rubber mat, it was excellent in the effect of suppressing the rise in the temperature in the box. However, when the thickness of the rubber mat exceeds 20 mm, it is difficult to form and the cost becomes high.
＜屋内遮熱性試験２＞
次に、厚さ３ｍｍのフレキ板のみの場合と、このフレキ板の上に酸化チタン粉末とホタテ貝殻微粉末を配合した厚さ１０ｍｍのゴムマットを載置した場合の屋内遮熱性試験を行った。
<Indoor thermal insulation test 2>
Next, an indoor heat shielding test was conducted in the case of only a flexible board having a thickness of 3 mm and a rubber mat having a thickness of 10 mm in which a titanium oxide powder and a fine powder of scallop shells were placed on the flexible board.
図８に示すように、室温２３℃に設定した恒温室で３ｍｍ厚、２０ｃｍ幅、２０ｃｍ長のサイズのフレキ板４を屋内遮熱性試験１と同一サイズの上方を開放した発泡スチロール製の箱３上に載置した場合と、さらにその上に１０ｍｍ厚、１５ｃｍ幅、１５ｃｍ長のサイズの酸化チタン粉末とホタテ貝殻微粉末を含有したゴムマット１を載置した場合の赤外線ランプ２照射による屋内遮熱性試験を行った。以下は、屋内遮熱性試験１と同様な方法でフレキ板の表面温度、フレキ板の裏面温度及びフレキ板のみの箱内温度、ゴムマット表面温度、ゴムマット裏面温度及びフレキ板の上にゴムマットを載置した場合の箱内温度を測定した。
As shown in FIG. 8, the flexible board 4 having a size of 3 mm thickness, 20 cm width and 20 cm length in a temperature-controlled room set at 23 ° C. is on a foamed
遮熱性試験２のフレキ板のみの表面温度と、このフレキ板の上にゴムマットを載置した場合のゴムマット表面温度を表すグラフを図９に、フレキ板のみの裏面温度と、このフレキ板の上にゴムマットを載置した場合のゴムマット裏面温度を表すグラフを図１０に、フレキ板のみの箱内温度と、このフレキ板の上にゴムマットを載置した場合の箱内温度を表すグラフを図１１に示す。 FIG. 9 is a graph showing the surface temperature of only the flexible board of the thermal insulation test 2 and the surface temperature of the rubber mat when the rubber mat is placed on the flexible board. FIG. 10 is a graph showing the temperature of the back surface of the rubber mat when the rubber mat is placed on FIG. 10, and FIG. 11 is a graph showing the temperature inside the box of only the flexible plate and the temperature inside the box when the rubber mat is placed on the flexible plate. Shown in
図９に示すように、フレキ板の上にゴムマットを載置した場合のゴムマットが、フレキ板のみの場合と比較して、６０分経過後には、約９℃程度の表面温度差を付けて、明らかにゴムマット表面温度の上昇抑制効果の面で優れていることが判明した。 As shown in FIG. 9, the rubber mat when the rubber mat is placed on the flexible board has a surface temperature difference of about 9 ° C. after 60 minutes, compared to the case where only the flexible board is used. It was clearly found that the rubber mat surface temperature was excellent in terms of suppressing the rise in temperature.
図１０に示すように、フレキ板の上にゴムマットを載置した場合のゴムマットが、フレキ板のみの場合と比較して、６０分経過後には、約１０℃程度の裏面温度差を付けて、明らかにゴムマット裏面温度の上昇抑制効果の面で優れていることが判明した。 As shown in FIG. 10, the rubber mat when the rubber mat is placed on the flexible board has a back surface temperature difference of about 10 ° C. after 60 minutes, compared with the case where only the flexible board is used. It was clearly found that the rubber mat back surface temperature was excellent in suppressing effect.
図１１に示すように、フレキ板の上にゴムマットを載置した場合のゴムマットが、フレキ板のみの場合と比較して、６０分経過後には、約４℃程度の箱内温度差を付けて、明らかに箱内温度の上昇抑制効果の面で優れていることが確認された。 As shown in FIG. 11, the rubber mat when the rubber mat is placed on the flexible board has a temperature difference in the box of about 4 ° C. after 60 minutes as compared with the case where only the flexible board is used. Thus, it was clearly confirmed that it was excellent in terms of the effect of suppressing the rise in the temperature inside the box.
したがって、フレキ板の上にゴムマットを載置した場合のゴムマットが、フレキ板のみと比較して、６０分経過後には、明らかゴムマット表面温度、ゴムマット裏面温度及び箱内温度のいずれも上昇抑制効果の面で優れていることが確認された。 Therefore, when the rubber mat is placed on the flexible board, the rubber mat surface temperature, the back surface temperature of the rubber mat, and the temperature inside the box are all less effective after 60 minutes as compared with the flexible board alone. It was confirmed that the surface was excellent.
１ ゴムマット
２ 赤外線ランプ
３ 発泡スチロール製の箱
４ フレキ板
DESCRIPTION OF
Claims (7)
ゴム原料を粉砕して得られたゴムチップに赤外線反射顔料とバインダーを混合させて成形したことを特徴とする遮熱性ゴムマット。 A heat-insulating rubber mat that is used by laying on paved surfaces such as rooftops, outer corridors, balconies, and verandas of buildings,
A heat-insulating rubber mat, characterized in that a rubber chip obtained by pulverizing a rubber raw material is molded by mixing an infrared reflective pigment and a binder.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101765337B1 (en) * | 2017-03-05 | 2017-08-04 | 문진호 | manufacturing method of cushioning material for interlayer noise |
| CN110028706A (en) * | 2019-04-09 | 2019-07-19 | 深圳市圆方科技新材料有限公司 | A kind of rubber and its manufacturing method with infrared energy reflection |
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| CN110028706A (en) * | 2019-04-09 | 2019-07-19 | 深圳市圆方科技新材料有限公司 | A kind of rubber and its manufacturing method with infrared energy reflection |
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