JP7220831B1 - Snow-melting paint composition - Google Patents
Snow-melting paint composition Download PDFInfo
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- JP7220831B1 JP7220831B1 JP2022160952A JP2022160952A JP7220831B1 JP 7220831 B1 JP7220831 B1 JP 7220831B1 JP 2022160952 A JP2022160952 A JP 2022160952A JP 2022160952 A JP2022160952 A JP 2022160952A JP 7220831 B1 JP7220831 B1 JP 7220831B1
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- snow
- coating composition
- melting
- asphalt
- melting coating
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- 238000002844 melting Methods 0.000 title claims abstract description 95
- 239000000203 mixture Substances 0.000 title claims description 18
- 239000003973 paint Substances 0.000 title description 6
- 239000010426 asphalt Substances 0.000 claims abstract description 72
- 239000008199 coating composition Substances 0.000 claims abstract description 72
- 239000010419 fine particle Substances 0.000 claims abstract description 40
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 37
- 239000010703 silicon Substances 0.000 claims abstract description 36
- 239000000853 adhesive Substances 0.000 claims abstract description 29
- 230000001070 adhesive effect Effects 0.000 claims abstract description 29
- 239000002612 dispersion medium Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 14
- 239000004567 concrete Substances 0.000 abstract description 14
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 13
- 239000003795 chemical substances by application Substances 0.000 abstract description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 8
- 150000003839 salts Chemical class 0.000 abstract description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract description 5
- 239000001110 calcium chloride Substances 0.000 abstract description 5
- 229910001628 calcium chloride Inorganic materials 0.000 abstract description 5
- 239000011780 sodium chloride Substances 0.000 abstract description 4
- 241000221535 Pucciniales Species 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 34
- 238000000576 coating method Methods 0.000 description 26
- 239000011248 coating agent Substances 0.000 description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 18
- 230000000694 effects Effects 0.000 description 17
- 239000006185 dispersion Substances 0.000 description 16
- 239000012153 distilled water Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 239000000758 substrate Substances 0.000 description 13
- 239000000654 additive Substances 0.000 description 12
- 239000000295 fuel oil Substances 0.000 description 11
- -1 vehicles and fences Chemical class 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
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- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
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- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
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- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- XMSXQFUHVRWGNA-UHFFFAOYSA-N Decamethylcyclopentasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 XMSXQFUHVRWGNA-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011856 silicon-based particle Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- PRAKJMSDJKAYCZ-UHFFFAOYSA-N squalane Chemical compound CC(C)CCCC(C)CCCC(C)CCCCC(C)CCCC(C)CCCC(C)C PRAKJMSDJKAYCZ-UHFFFAOYSA-N 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- DSEKYWAQQVUQTP-XEWMWGOFSA-N (2r,4r,4as,6as,6as,6br,8ar,12ar,14as,14bs)-2-hydroxy-4,4a,6a,6b,8a,11,11,14a-octamethyl-2,4,5,6,6a,7,8,9,10,12,12a,13,14,14b-tetradecahydro-1h-picen-3-one Chemical compound C([C@H]1[C@]2(C)CC[C@@]34C)C(C)(C)CC[C@]1(C)CC[C@]2(C)[C@H]4CC[C@@]1(C)[C@H]3C[C@@H](O)C(=O)[C@@H]1C DSEKYWAQQVUQTP-XEWMWGOFSA-N 0.000 description 1
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 1
- LIPRQQHINVWJCH-UHFFFAOYSA-N 1-ethoxypropan-2-yl acetate Chemical compound CCOCC(C)OC(C)=O LIPRQQHINVWJCH-UHFFFAOYSA-N 0.000 description 1
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 1
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- GCPWJFKTWGFEHH-UHFFFAOYSA-N acetoacetamide Chemical compound CC(=O)CC(N)=O GCPWJFKTWGFEHH-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
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- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
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- 125000003976 glyceryl group Chemical group [H]C([*])([H])C(O[H])([H])C(O[H])([H])[H] 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- OIKBVOIOVNEVJR-UHFFFAOYSA-N hexadecyl 6-methylheptanoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)CCCCC(C)C OIKBVOIOVNEVJR-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Paints Or Removers (AREA)
Abstract
【課題】従来の融雪剤は塩化カルシウムや塩化ナトリウムをはじめとする金属塩を使用したものであって、車両やフェンスなどの金属を錆びさせる塩害を発生させること、また土壌の残留や河川への流出による環境汚染を引き起こすという問題があった。また、路面の積雪や凍結のおそれが生じる度に、融雪剤を路面に散布する必要が生じるため、手間とコストを要していた。【解決手段】本発明の融雪用塗料組成物は、金属ケイ素の微粒子と、分散媒と、接着剤と、を含有することを特徴とする融雪用塗料組成物である。本発明に係る融雪用塗料組成物によれば、金属塩から成る融雪剤を使用せずに、又は、少ない使用量であっても、コンクリート又はアスファルト表面に存在している雪や氷を効率的に融解させることができる。【選択図】なし[Problem] Conventional snow-melting agents use metal salts such as calcium chloride and sodium chloride, and cause salt damage that rusts metals such as vehicles and fences. There was a problem of causing environmental pollution due to outflow. Moreover, every time the road surface is likely to be covered with snow or frozen, it is necessary to spray the snow-melting agent on the road surface, which is time-consuming and costly. A snow-melting coating composition of the present invention is a snow-melting coating composition characterized by containing fine particles of metallic silicon, a dispersion medium, and an adhesive. According to the snow-melting coating composition according to the present invention, snow and ice existing on the surface of concrete or asphalt can be efficiently removed without using a snow-melting agent composed of a metal salt, or even with a small amount used. can be melted to [Selection figure] None
Description
本発明は、融雪用塗料組成物に関する。 The present invention relates to a snow-melting coating composition.
降雪量の多い寒冷地では、冬の路面凍結や積雪が交通障害の要因となっている。このような冬場の路面凍結や路面への積雪を防止するために、凍結抑止や融雪、融氷のため、融雪剤が用いられている。 In cold regions with a lot of snowfall, frozen road surfaces and accumulated snow in winter cause traffic problems. In order to prevent the freezing of road surfaces and the accumulation of snow on road surfaces in winter, snow-melting agents are used to suppress freezing, melt snow, and melt ice.
従来から用いられている融雪剤としては、例えば、塩化カルシウムや塩化ナトリウムが知られている。これら融雪剤は、融雪能力が高く、散布後直ちにその効果を発揮するため、固体状（粒状）または水溶液の状態で積雪した、あるいは凍結した路面等に散布され使用される（例えば、特許文献１）。 Calcium chloride and sodium chloride, for example, are known as snow-melting agents that have been used in the past. Since these snow-melting agents have a high snow-melting ability and exert their effect immediately after being sprayed, they are used by spraying them on snow-covered or frozen road surfaces in a solid (granular) or aqueous solution state (for example, Patent Document 1 ).
しかしながら、塩化カルシウムや塩化ナトリウムは、融雪効果は速効性を有する反面、効果の持続時間が短く、融雪水が再凍結して路面に鏡面が発生するとかえって滑りやすくなり交通に支障を来たし、また地表に残存した塩化カルシウムが車両やフェンスなどの金属を錆びさせ、また土壌の残留や河川への流出によって環境汚染の原因となり、さらに植物の生長を阻害するなど動植物に対して安全衛生面での問題がある。 However, although calcium chloride and sodium chloride have a fast-acting snow-melting effect, the effect lasts for a short time. Calcium chloride remaining in the soil rusts metals such as vehicles and fences, and causes environmental pollution due to residual soil and runoff into rivers.It also causes safety and health problems for animals and plants, such as hindering the growth of plants. There is
特許文献２には、融雪剤である金属塩にセルロースナノファイバーを含有させる融雪剤が記載されている。 Patent Document 2 describes a snow-melting agent in which cellulose nanofibers are contained in a metal salt that is a snow-melting agent.
しかしながら、上記特許文献１及び２に記載されたいずれの融雪剤も塩化カルシウムや塩化ナトリウムをはじめとする金属塩を使用したものであって、車両やフェンスなどの金属を錆びさせる塩害を発生させること、また土壌の残留や河川への流出による環境汚染を引き起こすという問題が生じる。 However, both of the snow melting agents described in Patent Documents 1 and 2 use metal salts such as calcium chloride and sodium chloride, and do not cause salt damage that rusts metals such as vehicles and fences. In addition, there arises a problem of causing environmental pollution due to residual soil and outflow into rivers.
また、路面の積雪や凍結のおそれが生じる度に、融雪剤を路面に散布する必要が生じるため、手間とコストを要していた。 Moreover, every time the road surface is likely to be covered with snow or frozen, it is necessary to spray the snow-melting agent on the road surface, which is time-consuming and costly.
本発明は、上記事情を鑑みてなされたものであり、本発明の融雪用塗料組成物を路面に塗布することにより、コンクリートやアスファルト等の路面に簡単に融雪効果を付与することができる。 The present invention has been made in view of the above circumstances, and by applying the snow-melting coating composition of the present invention to a road surface, it is possible to easily impart a snow-melting effect to road surfaces such as concrete and asphalt.
［１］金属ケイ素の微粒子と、分散媒と、接着剤と、を含有することを特徴とする融雪用塗料組成物。 [1] A snow-melting coating composition comprising fine particles of metallic silicon, a dispersion medium, and an adhesive.
［２］金属ケイ素の微粒子が、純度９０％以上のケイ素から構成されるテラヘルツ鉱石であって、かつ、体積平均粒子径が０．１μｍ以上１００μｍ以下であることを特徴とする［１］に記載の融雪用塗料組成物。 [2] According to [1], the fine particles of metallic silicon are terahertz ore composed of silicon with a purity of 90% or more, and have a volume average particle diameter of 0.1 μm or more and 100 μm or less. snow-melting coating composition.
［３］金属ケイ素の微粒子の濃度が１ｇ／Ｌ以上３００ｇ／Ｌ以下であることを特徴とする［１］又は［２］に記載の融雪用塗料組成物。 [3] The snow-melting coating composition according to [1] or [2], wherein the concentration of the fine particles of metallic silicon is 1 g/L or more and 300 g/L or less.
［４］接着剤がストレートアスファルトであることを特徴とする［１］又は［２］に記載の融雪用塗料組成物。 [4] The snow-melting coating composition according to [1] or [2], wherein the adhesive is straight asphalt.
［５］分散媒が水であり、融雪用塗料組成物のｐＨが６以下であることを特徴とする［１］又は［２］に記載の融雪用塗料組成物。 [5] The snow-melting coating composition according to [1] or [2], wherein the dispersion medium is water and the pH of the snow-melting coating composition is 6 or less.
［６］［１］又は［２］に記載の融雪用塗料組成物が塗布されたアスファルト組成物。 [6] An asphalt composition coated with the snow melting coating composition according to [1] or [2].
本発明に係る融雪用塗料組成物によれば、金属塩から成る融雪剤を使用せずに、又は、少ない使用量であっても、コンクリート又はアスファルト表面に存在している雪や氷を効率的に融解させることができる。また、コンクリート又はアスファルトの熱をコンクリート又はアスファルト表面に存在している雪や氷に効率的に伝えることができるため、積雪や凍結を防止することができる。 According to the snow-melting coating composition according to the present invention, snow and ice existing on the surface of concrete or asphalt can be efficiently removed without using a snow-melting agent composed of a metal salt, or even with a small amount used. can be melted to Moreover, since the heat of the concrete or asphalt can be efficiently transferred to the snow and ice present on the surface of the concrete or asphalt, snow accumulation and freezing can be prevented.
以下、本発明に係る融雪用塗料組成物の実施形態を詳細に説明する。しかし、本発明は以下の実施形態に限定されるものではない。 Hereinafter, embodiments of the snow-melting coating composition according to the present invention will be described in detail. However, the present invention is not limited to the following embodiments.
＜＜融雪用塗料組成物＞＞
本発明に係る融雪用塗料組成物は、少なくとも、金属ケイ素の微粒子と、分散媒と、接着剤と、を含有することを特徴とする融雪用塗料組成物である。
<<Snow melting paint composition>>
A snow-melting coating composition according to the present invention is a snow-melting coating composition characterized by containing at least fine particles of metallic silicon, a dispersion medium, and an adhesive.
本発明に係る融雪用塗料組成物における金属ケイ素の微粒子の濃度は、融雪用塗料組成物中に金属ケイ素の微粒子が均一に分散することができる濃度であれば特に制限されるものではないが、１ｇ／Ｌ以上３００ｇ／Ｌ以下の範囲が好ましく、１０ｇ／Ｌ以上１００ｇ／Ｌであることがより好ましく、１５ｇ／Ｌ以上５０ｇ／Ｌ以下であることがさらに好ましい。 The concentration of the fine silicon metal particles in the snow-melting coating composition according to the present invention is not particularly limited as long as the fine particles of the metal silicon can be uniformly dispersed in the snow-melting coating composition. The range is preferably 1 g/L or more and 300 g/L or less, more preferably 10 g/L or more and 100 g/L or less, and even more preferably 15 g/L or more and 50 g/L or less.
分散媒及び接着剤の組成により最適な金属ケイ素微粒子の濃度は変化するものの、融雪用塗料組成物における金属ケイ素の微粒子の濃度が上記の範囲内であれば、分散媒に微粒子を均一に分散することが可能であり、塗料を塗布した際に均一厚みの塗膜を得ることができる。
微粒子濃度が上記範囲より高い場合には、粘度が高いことにより塗膜の形成が困難になる。微粒子濃度が上記範囲より低い場合には、融雪効果が著しく低下する。
Although the optimum concentration of the fine metal silicon particles varies depending on the composition of the dispersion medium and the adhesive, the fine particles can be uniformly dispersed in the dispersion medium as long as the concentration of the fine metal particles in the snow-melting coating composition is within the above range. It is possible to obtain a coating film having a uniform thickness when the coating material is applied.
If the fine particle concentration is higher than the above range, the high viscosity makes it difficult to form a coating film. If the fine particle concentration is lower than the above range, the snow-melting effect is significantly reduced.
本発明に係る融雪用塗料組成物は、その特性を損なわない範囲において、一般的に用いられる添加剤を含んでいてもよい。添加剤としては、例えば、分散剤、防腐剤、レベリング剤、防汚剤等が挙げられる。 The snow-melting coating composition according to the present invention may contain commonly used additives as long as the properties thereof are not impaired. Examples of additives include dispersants, preservatives, leveling agents, antifouling agents and the like.
＜金属ケイ素の微粒子＞
金属ケイ素の微粒子は、ケイ素を主成分として含む微粒子であれば良い。主成分とは、５０質量％以上を意味するものとする。本発明に係る金属ケイ素の微粒子は、単結晶であってもよく、多結晶であってもよく、非晶質であってもよい。
また、本発明に係る金属ケイ素の微粒子の体積平均粒子径は、０．１μｍ以上１００μｍ以下の範囲であることが好ましく、１μｍ以上１０μｍ以下の範囲であることがより好ましい。金属ケイ素の微粒子の形状は、特に限定されるものではなく、球形、フレーク形状、板状であってもよい。
<Fine particles of metallic silicon>
The fine particles of metallic silicon may be fine particles containing silicon as a main component. A main component shall mean 50 mass % or more. The fine particles of metallic silicon according to the present invention may be monocrystalline, polycrystalline, or amorphous.
The volume average particle diameter of the fine particles of metallic silicon according to the present invention is preferably in the range of 0.1 μm to 100 μm, more preferably in the range of 1 μm to 10 μm. The shape of the fine particles of metallic silicon is not particularly limited, and may be spherical, flake-shaped, or plate-shaped.
金属ケイ素は、他のセラミック材料に比べて熱伝導率が高く、熱交換効率を高くすることができるため、路面の熱を雪や氷に伝えやすく好ましい。さらに、金属ケイ素のモース硬度は７であり、硬度が高い上に酸化しにくいため、コンクリート又はアスファルトに塗布した場合であっても、劣化が生じにくい。 Metallic silicon has a higher thermal conductivity than other ceramic materials and can improve heat exchange efficiency, so it is preferable because it easily transfers heat from the road surface to snow and ice. Furthermore, since metal silicon has a Mohs hardness of 7, which is high in hardness and resistant to oxidation, deterioration does not easily occur even when applied to concrete or asphalt.
（テラヘルツ鉱石）
テラヘルツ鉱石は、金属ケイ素を主成分とする鉱石である。本発明に係るテラヘルツ鉱石は、純度９０％以上のケイ素から構成されていることが好ましく。より好ましくは純度９５％以上である。また、本発明に係るテラヘルツ鉱石の微粒子の体積平均粒子径は、０．１μｍ以上１００μｍ以下の範囲であることが好ましく、１μｍ以上１０μｍ以下の範囲であることがより好ましい。テラヘルツ鉱石の微粒子の形状は、特に限定されるものではなく、球形、フレーク形状、板状であってもよい。
(terahertz ore)
A terahertz ore is an ore whose main component is metallic silicon. The terahertz ore according to the present invention is preferably composed of silicon with a purity of 90% or more. More preferably, the purity is 95% or higher. The volume average particle size of the terahertz ore fine particles according to the present invention is preferably in the range of 0.1 μm to 100 μm, more preferably in the range of 1 μm to 10 μm. The shape of the fine particles of the terahertz ore is not particularly limited, and may be spherical, flake-shaped, or plate-shaped.
テラヘルツ鉱石は、外部から加熱等のエネルギーを加えることにより、テラヘルツ波を発生させると言われている鉱石である。テラヘルツ波は、周波数１００ＧＨｚ～１０ＴＨｚの電磁波であり、周波数が光波と電波との中間領域に該当する。ケイ素の純度が高いテラヘルツ鉱石を用いることにより、コンクリート又はアスファルトからの熱を受けた際に、テラヘルツ鉱石が効率的にテラヘルツ波を発生させることが期待でき、融雪効果を高めることができる。 Terahertz ore is an ore that is said to generate terahertz waves by applying energy such as heating from the outside. A terahertz wave is an electromagnetic wave with a frequency of 100 GHz to 10 THz, and the frequency corresponds to an intermediate range between light waves and radio waves. By using a terahertz ore with a high silicon purity, it can be expected that the terahertz ore will efficiently generate terahertz waves when subjected to heat from concrete or asphalt, and the snow melting effect can be enhanced.
本発明において体積平均粒子径は、水に金属ケイ素の微粒子又はテラヘルツ鉱石の微粒子を分散させて調製した分散液を光散乱法により測定することにより見積もることができる。体積平均粒子径は、前記微粒子の体積基準の粒度分布を光散乱法により測定し、得られた粒度分布（体積基準）において累積頻度が５０％となる粒子径（Ｄ５０）を採用することができる。 In the present invention, the volume average particle size can be estimated by measuring a dispersion prepared by dispersing fine particles of metallic silicon or fine particles of terahertz ore in water by a light scattering method. As the volume average particle diameter, the volume-based particle size distribution of the fine particles is measured by a light scattering method, and the particle size (D50) at which the cumulative frequency is 50% in the obtained particle size distribution (volume-based) can be adopted. .
＜分散媒＞
分散媒は、金属ケイ素の微粒子を分散させ、接着剤に均一に分散させる役割を有する。本発明に係る融雪用塗料組成物中の分散媒の量は、金属ケイ素の微粒子の濃度が１ｇ／Ｌ以上３００ｇ／Ｌ以下の範囲内に収まるように調製できれば特に限定されるものではないが、例えば、本発明に係る融雪用塗料組成物の全体重量に対して、５重量％以上９５重量％以下の範囲とすることもできるし、５０重量％以上９０重量％以下の範囲とすることもできる。これら溶媒量は、塗布方法や外気温などにより使用者が適宜調整することが好ましい。
<Dispersion medium>
The dispersion medium has the role of dispersing the fine particles of metallic silicon and dispersing them uniformly in the adhesive. The amount of the dispersion medium in the snow-melting coating composition according to the present invention is not particularly limited as long as it can be prepared so that the concentration of fine particles of metallic silicon falls within the range of 1 g/L or more and 300 g/L or less. For example, with respect to the total weight of the snow-melting coating composition according to the present invention, it can be in the range of 5% by weight or more and 95% by weight or less, or it can be in the range of 50% by weight or more and 90% by weight or less. . It is preferable that the amount of these solvents be appropriately adjusted by the user according to the application method, ambient temperature, and the like.
分散媒は、分散媒の用途に応じて適宜選択することができ、金属ケイ素の微粒子と親和性の高いものであれば特に限定されるものではない。好適に用いることができる分散媒としては、例えば、水、メタノール、エタノール、１－プロパノール、２－プロパノール、１－ブタノール、２－ブタノール、オクタノール、グリセリン等のアルコール類や、酢酸エチル、酢酸ブチル、乳酸エチル、プロピレングリコールモノメチルエーテルアセテート、プロピレングリコールモノエチルエーテルアセテート、γ－ブチロラクトン等のエステル類や、ジエチルエーテル、エチレングリコールモノメチルエーテル（メチルセロソルブ）、エチレングリコールモノエチルエーテル（エチルセロソルブ）、エチレングリコールモノブチルエーテル（ブチルセロソルブ）、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル等のエーテル類を好適に用いることができる。 The dispersion medium can be appropriately selected according to the use of the dispersion medium, and is not particularly limited as long as it has a high affinity with the fine particles of metallic silicon. Dispersion media that can be suitably used include alcohols such as water, methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, octanol and glycerin, ethyl acetate, butyl acetate, Esters such as ethyl lactate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, γ-butyrolactone, diethyl ether, ethylene glycol monomethyl ether (methyl cellosolve), ethylene glycol monoethyl ether (ethyl cellosolve), ethylene glycol mono Ethers such as butyl ether (butyl cellosolve), diethylene glycol monomethyl ether, and diethylene glycol monoethyl ether can be preferably used.
また、アセトン、メチルエチルケトン、メチルイソブチルケトン、アセチルアセトン、シクロヘキサノン等のケトン類や、ベンゼン、トルエン、キシレン、エチルベンゼン等の芳香族炭化水素や、シクロヘキサン等の環状炭化水素や、ジメチルホルムアミド、Ｎ，Ｎ－ジメチルアセトアセトアミド、Ｎ－メチルピロリドン等のアミド類や、ジメチルポリシロキサン、メチルフェニルポリシロキサン、ジフェニルポリシロキサン等の鎖状ポリシロキサン類を用いることもできる。 In addition, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, acetylacetone and cyclohexanone; aromatic hydrocarbons such as benzene, toluene, xylene and ethylbenzene; cyclic hydrocarbons such as cyclohexane; Amides such as acetoacetamide and N-methylpyrrolidone, and chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane and diphenylpolysiloxane can also be used.
また、オクタメチルシクロテトラシロキサン、デカメチルシクロペンタシロキサン、ドデカメチルシクロヘキサンシロキサン等の環状ポリシロキサン類や、アミノ変性ポリシロキサン、ポリエーテル変性ポリシロキサン、アルキル変性ポリシロキサン、フッ素変性ポリシロキサン等の変性ポリシロキサン類を用いることもできる。 In addition, cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexanesiloxane, and modified polysiloxanes such as amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, and fluorine-modified polysiloxane. Siloxanes can also be used.
また、流動パラフィン、スクワラン、イソパラフィン、分岐鎖状軽パラフィン、ワセリン、セレシン、ナフサ、ガソリン、灯油、軽油、重油、石油系重質油等の炭化水素油、イソプロピルミリステート、セチルイソオクタノエート、グリセリルトリオクタノエート等のエステル油、デカメチルシクロペンタシロキサン、ジメチルポリシロキサン、メチルフェニルポリシロキサン等のシリコーン油、ウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸などの高級脂肪酸、ラウリルアルコール、セチルアルコール、ステアリルアルコール、ヘキシルドデカノール、イソステアリルアルコールなどの高級アルコール等の疎水性の分散媒を用いてもよい。
以上述べた様々な種類の分散媒は、必要に応じて１種のみを単独で用いてもよく、２種以上を混合して用いてもよい。
In addition, liquid paraffin, squalane, isoparaffin, branched light paraffin, petroleum jelly, ceresin, naphtha, gasoline, kerosene, light oil, heavy oil, hydrocarbon oils such as heavy petroleum oil, isopropyl myristate, cetyl isooctanoate, Ester oils such as glyceryl dioctanoate, silicone oils such as decamethylcyclopentasiloxane, dimethylpolysiloxane, and methylphenylpolysiloxane, higher fatty acids such as uric acid, myristic acid, palmitic acid, and stearic acid, lauryl alcohol, and cetyl alcohol , stearyl alcohol, hexyldodecanol, isostearyl alcohol, and other hydrophobic dispersion media may be used.
The various types of dispersion media described above may be used singly or in combination of two or more as needed.
分散媒として水性溶媒又は水を用いる場合には、分散媒中に塩酸、硫酸、硝酸、脂肪酸を添加し、本発明に係る融雪用塗料組成物のｐＨを適宜調整することができる。本発明に係る融雪用塗料組成物のｐＨは、１以上６以下であることが好ましく、金属ケイ素の微粒子と接着剤との親和性、分散性を向上させる点で３以上５以下であることがより好ましい。 When an aqueous solvent or water is used as the dispersion medium, hydrochloric acid, sulfuric acid, nitric acid or fatty acid can be added to the dispersion medium to appropriately adjust the pH of the snow melting coating composition according to the present invention. The pH of the snow-melting coating composition according to the present invention is preferably 1 or more and 6 or less, and is preferably 3 or more and 5 or less from the viewpoint of improving the affinity and dispersibility between the fine particles of metal silicon and the adhesive. more preferred.
分散媒は、その特性を損なわない範囲において、一般的に用いられる添加剤を含んでいてもよい。添加剤としては、例えば、分散剤、安定剤、水溶性バインダー、界面活性剤、増粘剤、油溶性防腐剤、紫外線吸収剤、油溶性薬剤、油溶性色素類、油溶性蛋白質類、鉱物油、植物油、動物油等が挙げられる。 The dispersion medium may contain commonly used additives as long as the properties are not impaired. Additives include, for example, dispersants, stabilizers, water-soluble binders, surfactants, thickeners, oil-soluble preservatives, UV absorbers, oil-soluble chemicals, oil-soluble pigments, oil-soluble proteins, and mineral oils. , vegetable oils, animal oils, and the like.
＜接着剤＞
接着剤は、金属ケイ素の微粒子を基材であるコンクリート又はアスファルト表面に固定する役割を有する。接着剤は、金属ケイ素と親和性が高く、かつ、コンクリート又はアスファルト表面と接着することができる物であれば特に限定されるものではなく、公知公用の物を用いることができる。例えば、エポキシ樹脂、アクリル樹脂、メタクリル樹脂、ポリウレア樹脂、ウレタン樹脂などを接着剤として使用してもよく、舗装用石油アスファルトであるストレートアスファルト、改質アスファルトを接着剤として使用してもよい。改質アスファルトとしては、ブローンアスファルト；熱可塑性エラストマー、熱可塑性樹脂等のポリマー（高分子材料）で改質したアスファルト等が挙げられる。
<Adhesive>
The adhesive serves to fix the fine particles of silicon metal to the concrete or asphalt surface of the substrate. The adhesive is not particularly limited as long as it has a high affinity with metallic silicon and can be adhered to the surface of concrete or asphalt, and known and publicly used ones can be used. For example, epoxy resins, acrylic resins, methacrylic resins, polyurea resins, urethane resins, etc. may be used as adhesives, and straight asphalt and modified asphalt, which are petroleum asphalts for paving, may be used as adhesives. Examples of modified asphalt include blown asphalt; asphalt modified with polymers (polymeric materials) such as thermoplastic elastomers and thermoplastic resins.
金属ケイ素の微粒子をアスファルト表面に固定する場合には、中でもストレートアスファルトを接着剤として用いることが好ましい。ストレートアスファルトは、金属ケイ素の微粒子を均一に分散させることができることに加え、アスファルトと親和性が高く、金属ケイ素の微粒子をアスファルト表面に強固に固定することができる。ストレートアスファルトを接着剤として用いる場合には、塗布方法や外気温に応じて重質油をさらに添加して用いることもできる。 Straight asphalt is preferably used as an adhesive when fixing metallic silicon fine particles to an asphalt surface. In straight asphalt, in addition to being able to uniformly disperse the fine particles of metallic silicon, it has a high affinity with asphalt and can firmly fix the fine particles of metallic silicon to the asphalt surface. When straight asphalt is used as an adhesive, heavy oil may be further added depending on the application method and ambient temperature.
ストレートアスファルトとは、原油を常圧蒸留装置、減圧蒸留装置等にかけて得られる残留瀝青物質のことである。また、ブローンアスファルトとは、ストレートアスファルトと重質油との混合物を加熱し、その後空気を吹き込んで酸化させることによって得られるアスファルトを意味する。 Straight asphalt is residual bituminous material obtained by subjecting crude oil to an atmospheric distillation apparatus, a vacuum distillation apparatus, or the like. Blown asphalt means asphalt obtained by heating a mixture of straight asphalt and heavy oil and then blowing air to oxidize it.
接着剤を塗布する工程の前に、コンクリート又はアスファルトの上面を研磨又は清掃する工程を備えていることが好ましい。金属ケイ素と、コンクリート又はアスファルトとの密着性をより一層強固にすることができる。 Preferably, there is a step of sanding or cleaning the top surface of the concrete or asphalt prior to the step of applying the adhesive. Adhesion between metal silicon and concrete or asphalt can be further strengthened.
接着剤は、金属ケイ素の微粒子の濃度が１ｇ／Ｌ以上３００ｇ／Ｌ以下の範囲内に収まるように調製できれば特に限定されるものではないが、例えば、本発明に係る融雪用塗料組成物の全体重量に対して、１重量％以上５０重量％以下の範囲とすることが好ましく、５重量％以上２０重量％以下の範囲とすることがより好ましい。接着剤の量が多い場合には、コンクリート又はアスファルト表面に融雪用塗料組成物を塗布する際に伸びが悪く均一な膜厚で塗布することが難しくなる。接着剤の量が少ない場合には、金属ケイ素と、コンクリート又はアスファルトとの密着性を確保することができない懸念がある。 The adhesive is not particularly limited as long as it can be prepared so that the concentration of the fine particles of metallic silicon falls within the range of 1 g/L or more and 300 g/L or less. It is preferably in the range of 1% by weight or more and 50% by weight or less, more preferably in the range of 5% by weight or more and 20% by weight or less. When the amount of the adhesive is large, when the snow-melting coating composition is applied to the surface of concrete or asphalt, the spread is poor and it becomes difficult to apply the composition with a uniform film thickness. If the amount of adhesive is small, there is a concern that the adhesion between metallic silicon and concrete or asphalt cannot be ensured.
＜＜融雪用塗料組成物の作製＞＞
本発明に係る融雪用塗料組成物の製造方法は、特に限定されないが、例えば、分散媒に金属ケイ素の微粒子を加え、金属ケイ素分散液を作製した後、接着剤を加えて、再度よく攪拌することで製造することができる。
前記の攪拌の方法は、特に限定されるものではなく、公知の混合装置で機械的に混合する方法を用いることができる。例えば、撹拌機、自公転式ミキサー、ホモミキサー、超音波ホモジナイザー等を用いることができる。
<<Preparation of snow melting coating composition>>
The method for producing the snow-melting coating composition according to the present invention is not particularly limited, but for example, fine particles of metallic silicon are added to the dispersion medium to prepare a metallic silicon dispersion, and then the adhesive is added and thoroughly stirred again. can be manufactured by
The stirring method is not particularly limited, and a mechanical mixing method using a known mixing device can be used. For example, a stirrer, a rotation-revolution mixer, a homomixer, an ultrasonic homogenizer, or the like can be used.
＜＜融雪用塗料の塗膜形成＞＞
本発明に係る融雪用塗料組成物をコンクリート又はアスファルトの表面に塗布し、塗膜を形成させる方法としては、公知公用の方法を採用することができる。例えばロールコート法、フローコート法、スプレーコート法、刷毛塗り法等の通常の塗布方法により、塗膜を形成することができる。
<<Formation of coating film of snow-melting paint>>
As a method of applying the snow-melting coating composition according to the present invention to the surface of concrete or asphalt to form a coating film, known methods can be employed. For example, a coating film can be formed by an ordinary coating method such as roll coating, flow coating, spray coating, or brush coating.
融雪用塗料の塗膜の膜厚に関しは、特に限定されるものではないが、例えば、乾燥後の膜厚が５μｍ以上３ｍｍ以下の範囲とすることが好ましく、１００μｍ以上１ｍｍ以下の範囲とすることがさらに好ましい。 The film thickness of the coating film of the snow-melting paint is not particularly limited, but for example, the film thickness after drying is preferably in the range of 5 μm or more and 3 mm or less, and preferably in the range of 100 μm or more and 1 mm or less. is more preferred.
以下の実施例及び比較例において、「部」及び「％」は特記しない限り「質量部」及び「質量％」である。 In the following examples and comparative examples, "parts" and "%" are "mass parts" and "mass%" unless otherwise specified.
＜アスファルト基材の作製＞
本実施例において、融雪用塗料組成物の融雪効果を検証するための基材として、アスファルト材を使用した。アスファルト材は、砂利等の骨材と加熱アスファルトとを混錬することにより作製した。混錬した骨材入りの高温のアスファルト混合物を直径３０ｃｍ、高さ１０ｃｍの金属製の容器に敷き詰めた。その後、アスファルト混合物を約８０ｋｇの重さで踏み固めた後に放冷し、厚さ５ｃｍ程度のアスファルト基材を作製した。
<Production of asphalt base material>
In this example, an asphalt material was used as a substrate for verifying the snow-melting effect of the snow-melting coating composition. The asphalt material was prepared by kneading aggregate such as gravel and heated asphalt. The kneaded aggregate-containing hot asphalt mixture was spread over a metal container having a diameter of 30 cm and a height of 10 cm. After that, the asphalt mixture was compacted with a weight of about 80 kg and allowed to cool, thereby producing an asphalt base material having a thickness of about 5 cm.
＜融雪用塗料組成物の融雪効果の検証＞
融雪用塗料組成物の性能は、各アスファルト基材の上に－１８℃の１辺６ｃｍの立方体の氷を乗せ、２５℃の環境で氷が融解するまでの時間を測定することにより評価した。
<Verification of snow-melting effect of snow-melting paint composition>
The performance of the snow-melting coating composition was evaluated by placing a 6 cm cube of ice at −18° C. on each asphalt substrate and measuring the time until the ice melted in an environment of 25° C.
［実施例１］
＜融雪用塗料組成物の作製＞
体積平均粒子径が５ｕｍのテラヘルツ鉱石の微粒子１０ｇを蒸留水３００ｍＬに加え、１０分攪拌することによりテラヘルツ鉱石分散液を作製した。
得られたテラヘルツ鉱石分散液に、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、融雪用塗料組成物を作製した。
[Example 1]
<Preparation of snow melting coating composition>
A terahertz ore dispersion liquid was prepared by adding 10 g of terahertz ore fine particles having a volume average particle diameter of 5 μm to 300 mL of distilled water and stirring the mixture for 10 minutes.
To the obtained terahertz ore dispersion, 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of A heavy oil, additives and the like was added and stirred for 10 minutes. Further, hydrochloric acid was added to adjust the pH to 4 to prepare a snow-melting coating composition.
＜融雪用塗料組成物の塗膜形成＞
作製した融雪用塗料組成物をアスファルト基材の表面に刷毛を用いて塗布した。膜厚は、乾燥後の塗膜厚さが約５００μｍになるように調整した。塗膜を室温で２時間ほど乾燥させ、アスファルト基材の表面に融雪用塗料組成物の塗膜を形成させた。
<Formation of coating film of snow-melting coating composition>
The prepared snow-melting coating composition was applied to the surface of the asphalt substrate using a brush. The film thickness was adjusted so that the film thickness after drying was about 500 μm. The coating film was dried at room temperature for about 2 hours to form a coating film of the snow-melting coating composition on the surface of the asphalt substrate.
＜融雪用塗料組成物の融雪効果の検証＞
作製した融雪用塗料組成物の塗膜が形成されたアスファルト基材の上に－１８℃の１辺６ｃｍの立方体の氷を乗せ、２５℃の環境で氷が融解するまでの時間を測定した。
氷が融解するまでに要した時間が１５分未満を「◎」、１５分以上１７分未満を「〇」、１７分以上を「×」として評価した。その結果を表１に記載した。
<Verification of Snow Melting Effect of Snow Melting Paint Composition>
A cube of ice with a side of 6 cm at −18° C. was placed on the asphalt substrate on which the coating film of the snow-melting coating composition was formed, and the time until the ice melted in an environment of 25° C. was measured.
The time required for the ice to melt was evaluated as "⊚" when less than 15 minutes, "∘" when 15 minutes or more and less than 17 minutes, and "×" when 17 minutes or more. The results are shown in Table 1.
［実施例２］
体積平均粒子径が５ｕｍのテラヘルツ鉱石の微粒子２０ｇを蒸留水３００ｍＬに加え、１０分攪拌することによりテラヘルツ鉱石分散液を作製した。得られたテラヘルツ鉱石分散液に、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、融雪用塗料組成物を作製した。
実施例１に記載の方法と同様にしてアスファルト基材の表面に融雪用塗料組成物の塗膜を形成させた後、実施例３に記載の方法と同様にして融雪用塗料組成物の融雪効果の検証を行った。その結果を表１に記載した。
[Example 2]
A terahertz ore dispersion liquid was prepared by adding 20 g of fine particles of terahertz ore having a volume average particle diameter of 5 μm to 300 mL of distilled water and stirring the mixture for 10 minutes. To the obtained terahertz ore dispersion, 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of A heavy oil, additives and the like was added and stirred for 10 minutes. Further, hydrochloric acid was added to adjust the pH to 4 to prepare a snow-melting coating composition.
After forming a coating film of the snow-melting coating composition on the surface of the asphalt substrate in the same manner as in Example 1, the snow-melting effect of the snow-melting coating composition was determined in the same manner as in Example 3. was verified. The results are shown in Table 1.
［実施例３］
体積平均粒子径が５ｕｍのテラヘルツ鉱石の微粒子３０ｇを蒸留水３００ｍＬに加え、１０分攪拌することによりテラヘルツ鉱石分散液を作製した。得られたテラヘルツ鉱石分散液に、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、融雪用塗料組成物を作製した。
実施例１に記載した方法と同様にしてアスファルト基材の表面に融雪用塗料組成物の塗膜を形成させた後、実施例１に記載の方法と同様にして融雪用塗料組成物の融雪効果の検証を行った。その結果を表１に記載した。
[Example 3]
A terahertz ore dispersion liquid was prepared by adding 30 g of fine particles of terahertz ore having a volume average particle size of 5 μm to 300 mL of distilled water and stirring the mixture for 10 minutes. To the obtained terahertz ore dispersion, 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of A heavy oil, additives and the like was added and stirred for 10 minutes. Further, hydrochloric acid was added to adjust the pH to 4 to prepare a snow-melting coating composition.
After forming a coating film of the snow-melting coating composition on the surface of the asphalt substrate in the same manner as in Example 1, the snow-melting effect of the snow-melting coating composition is determined in the same manner as in Example 1. was verified. The results are shown in Table 1.
［実施例４］
体積平均粒子径が５ｕｍのテラヘルツ鉱石の微粒子４０ｇを蒸留水３００ｍＬに加え、１０分攪拌することによりテラヘルツ鉱石分散液を作製した。得られたテラヘルツ鉱石分散液に、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、融雪用塗料組成物を作製した。
実施例１に記載した方法と同様にしてアスファルト基材の表面に融雪用塗料組成物の塗膜を形成させた後、実施例１に記載の方法と同様にして融雪用塗料組成物の融雪効果の検証を行った。その結果を表１に記載した。
[Example 4]
A terahertz ore dispersion liquid was prepared by adding 40 g of fine particles of terahertz ore having a volume average particle size of 5 μm to 300 mL of distilled water and stirring the mixture for 10 minutes. To the obtained terahertz ore dispersion, 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of A heavy oil, additives and the like was added and stirred for 10 minutes. Further, hydrochloric acid was added to adjust the pH to 4 to prepare a snow-melting coating composition.
After forming a coating film of the snow-melting coating composition on the surface of the asphalt substrate in the same manner as in Example 1, the snow-melting effect of the snow-melting coating composition is determined in the same manner as in Example 1. was verified. The results are shown in Table 1.
［実施例５］
体積平均粒子径が５ｕｍのテラヘルツ鉱石の微粒子５０ｇを蒸留水３００ｍＬに加え、１０分攪拌することによりテラヘルツ鉱石分散液を作製した。得られたテラヘルツ鉱石分散液に、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、融雪用塗料組成物を作製した。
実施例１に記載した方法と同様にしてアスファルト基材の表面に融雪用塗料組成物の塗膜を形成させた後、実施例１に記載の方法と同様にして融雪用塗料組成物の融雪効果の検証を行った。その結果を表１に記載した。
[Example 5]
A terahertz ore dispersion liquid was prepared by adding 50 g of terahertz ore fine particles having a volume average particle size of 5 μm to 300 mL of distilled water and stirring the mixture for 10 minutes. To the obtained terahertz ore dispersion, 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of A heavy oil, additives and the like was added and stirred for 10 minutes. Further, hydrochloric acid was added to adjust the pH to 4 to prepare a snow-melting coating composition.
After forming a coating film of the snow-melting coating composition on the surface of the asphalt substrate in the same manner as in Example 1, the snow-melting effect of the snow-melting coating composition is determined in the same manner as in Example 1. was verified. The results are shown in Table 1.
［比較例１］
蒸留水３００ｍＬに、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、比較例１の塗料組成物を作製した。
実施例１に記載の方法と同様にしてアスファルト基材の表面に比較例１の塗料組成物の塗膜を形成させた後、実施例３に記載の方法と同様にして比較例１の塗料組成物の融雪効果の検証を行った。その結果を表１に記載した。
[Comparative Example 1]
To 300 mL of distilled water was added 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of heavy oil A, additives, etc., and stirred for 10 minutes. Furthermore, hydrochloric acid was added to adjust the pH to 4, and a coating composition of Comparative Example 1 was prepared.
After forming a coating film of the coating composition of Comparative Example 1 on the surface of the asphalt substrate in the same manner as in Example 1, the coating composition of Comparative Example 1 was formed in the same manner as in Example 3. We verified the snow melting effect of objects. The results are shown in Table 1.
［比較例２］
体積平均粒子径が５ｕｍのテラヘルツ鉱石の微粒子５ｇを蒸留水３００ｍＬに加え、１０分攪拌することによりテラヘルツ鉱石分散液を作製した。得られたテラヘルツ鉱石分散液に、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、比較例２の塗料組成物を作製した。
実施例１に記載した方法と同様にしてアスファルト基材の表面に比較例２の塗料組成物の塗膜を形成させた後、実施例１に記載の方法と同様にして比較例２の塗料組成物の融雪効果の検証を行った。その結果を表１に記載した。
[Comparative Example 2]
A terahertz ore dispersion liquid was prepared by adding 5 g of fine particles of terahertz ore having a volume average particle diameter of 5 μm to 300 mL of distilled water and stirring the mixture for 10 minutes. To the obtained terahertz ore dispersion, 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of A heavy oil, additives and the like was added and stirred for 10 minutes. Furthermore, hydrochloric acid was added to adjust the pH to 4, and a coating composition of Comparative Example 2 was prepared.
After forming a coating film of the coating composition of Comparative Example 2 on the surface of the asphalt substrate in the same manner as in Example 1, the coating composition of Comparative Example 2 was formed in the same manner as in Example 1. We verified the snow melting effect of objects. The results are shown in Table 1.
［比較例３］
体積平均粒子径が５ｕｍのテラヘルツ鉱石の微粒子１００ｇを蒸留水３００ｍＬに加え、１０分攪拌することによりテラヘルツ鉱石分散液を作製した。得られたテラヘルツ鉱石分散液に、ストレートアスファルト５０重量％、蒸留水４５重量％、Ａ重油３重量％、添加剤等から構成される接着剤１００ｍＬを加え、１０分攪拌した。さらに、塩酸を添加しｐＨを４に調整し、比較例３の塗料組成物を作製した。
実施例１に記載した方法と同様にしてアスファルト基材の表面に比較例３の塗料組成物の塗膜を形成させた後、実施例１に記載の方法と同様にして比較例３の塗料組成物の融雪効果の検証を行った。その結果を表１に記載した。
[Comparative Example 3]
A terahertz ore dispersion liquid was prepared by adding 100 g of fine particles of terahertz ore having a volume average particle diameter of 5 μm to 300 mL of distilled water and stirring the mixture for 10 minutes. To the obtained terahertz ore dispersion, 100 mL of an adhesive composed of 50% by weight of straight asphalt, 45% by weight of distilled water, 3% by weight of A heavy oil, additives and the like was added and stirred for 10 minutes. Furthermore, hydrochloric acid was added to adjust the pH to 4, and a coating composition of Comparative Example 3 was prepared.
After forming a coating film of the coating composition of Comparative Example 3 on the surface of the asphalt substrate in the same manner as in Example 1, the coating composition of Comparative Example 3 was formed in the same manner as in Example 1. We verified the snow-melting effect of objects. The results are shown in Table 1.
表１の結果より、テラヘルツ鉱石を１０ｇ以上２０ｇ以下の範囲で含む融雪用塗料組成物の塗膜を形成したアスファルト材では、アスファルト表面の氷を融解するのに要した時間が１５分であった（実施例１及び２）。テラヘルツ鉱石を用いていない塗料組成物の塗膜を形成したアスファルト材の場合には、アスファルト表面の氷を融解するのに要した時間が１７．５分であったことから、テラヘルツ鉱石がアスファルト表面に存在している氷又は雪の融解を促進する効果を有していることが分かる（比較例１）。これは、金属ケイ素から成るテラヘルツ鉱石の熱伝導率がアスファルト材よりも高いために地熱を効率的に氷や雪に伝えることができるためであると考えられる。 From the results in Table 1, it took 15 minutes to melt the ice on the asphalt surface of the asphalt material on which the coating film of the snow-melting coating composition containing terahertz ore in the range of 10 g or more and 20 g or less was formed. (Examples 1 and 2). In the case of the asphalt material on which the coating film of the coating composition that does not use terahertz ore was formed, the time required to melt the ice on the asphalt surface was 17.5 minutes. (Comparative Example 1). This is probably because terahertz ore made of metallic silicon has a higher thermal conductivity than asphalt material, so geothermal heat can be efficiently transferred to ice and snow.
テラヘルツ鉱石を３０ｇ含む融雪用塗料組成物の塗膜を形成したアスファルト材では、アスファルト表面の氷を融解するのに要した時間が１５．５分であった（実施例３）。テラヘルツ鉱石を４０ｇ又は５０ｇ含む融雪用塗料組成物の塗膜を形成したアスファルト材では、アスファルト表面の氷を融解するのに要した時間が１６分であった（実施例４又は５）。 With the asphalt material coated with the snow-melting coating composition containing 30 g of terahertz ore, it took 15.5 minutes to melt the ice on the asphalt surface (Example 3). With the asphalt material coated with the snow-melting coating composition containing 40 g or 50 g of terahertz ore, the time required to melt the ice on the asphalt surface was 16 minutes (Example 4 or 5).
テラヘルツ鉱石を５ｇ含む融雪用塗料組成物の塗膜を形成したアスファルト材では、アスファルト表面の氷を融解するのに要した時間が１７分であった（比較例２）。この結果から、テラヘルツ鉱石が５ｇ以下の融雪用塗料組成物を用いた場合には、融雪効果を得ることはできなかった。一方、テラヘルツ鉱石を１００ｇ含む融雪用塗料組成物の塗膜を形成したアスファルト材では、融雪用塗料組成物の粘度が高くなり、アスファルト表面に均一な塗膜を形成することができなかった（比較例３）。 With the asphalt material coated with the snow-melting coating composition containing 5 g of terahertz ore, it took 17 minutes to melt the ice on the asphalt surface (Comparative Example 2). From these results, when a snow-melting coating composition containing 5 g or less of terahertz ore was used, a snow-melting effect could not be obtained. On the other hand, in the asphalt material on which the coating film of the snow-melting coating composition containing 100 g of terahertz ore was formed, the viscosity of the snow-melting coating composition increased, and a uniform coating film could not be formed on the asphalt surface (comparison Example 3).
Claims (5)
金属ケイ素の微粒子が、純度９０％以上のケイ素から構成されるテラヘルツ鉱石であって、かつ、体積平均粒子径が０．１μｍ以上１００μｍ以下であることを特徴とする融雪用塗料組成物。 A snow-melting coating composition comprising fine particles of metallic silicon, a dispersion medium, and an adhesive ,
A coating composition for melting snow, wherein fine particles of metallic silicon are a terahertz ore composed of silicon with a purity of 90% or more and have a volume average particle diameter of 0.1 μm or more and 100 μm or less.
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| KR20110113793A (en) * | 2010-04-11 | 2011-10-19 | 이대열 | Snow melting apparatus on paved road and mehod for paving road |
| JP2014201683A (en) * | 2013-04-05 | 2014-10-27 | ｎ−ｔｅｃｈ株式会社 | Snow-melting paint and construction method using the same, and snow-melting system |
| CN108373705A (en) * | 2016-11-14 | 2018-08-07 | 广安大川铁路运输学校 | A kind of road zebra crossing paint |
| CN112266697A (en) * | 2020-09-15 | 2021-01-26 | 苏州圣杰特种树脂有限公司 | Self-adaptive anti-icing pavement |
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| KR20110113793A (en) * | 2010-04-11 | 2011-10-19 | 이대열 | Snow melting apparatus on paved road and mehod for paving road |
| JP2014201683A (en) * | 2013-04-05 | 2014-10-27 | ｎ−ｔｅｃｈ株式会社 | Snow-melting paint and construction method using the same, and snow-melting system |
| CN108373705A (en) * | 2016-11-14 | 2018-08-07 | 广安大川铁路运输学校 | A kind of road zebra crossing paint |
| CN112266697A (en) * | 2020-09-15 | 2021-01-26 | 苏州圣杰特种树脂有限公司 | Self-adaptive anti-icing pavement |
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