JP2021112438A - Deodorant agent and deodorant composite - Google Patents
Deodorant agent and deodorant composite Download PDFInfo
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- 239000002781 deodorant agent Substances 0.000 title claims abstract description 76
- 239000002131 composite material Substances 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 91
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000011521 glass Substances 0.000 claims abstract description 59
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000003463 adsorbent Substances 0.000 claims description 20
- 239000000376 reactant Substances 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 238000013329 compounding Methods 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 38
- 229910021529 ammonia Inorganic materials 0.000 abstract description 19
- 235000019645 odor Nutrition 0.000 abstract description 18
- 150000001412 amines Chemical class 0.000 abstract description 8
- 238000001179 sorption measurement Methods 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 5
- 238000006557 surface reaction Methods 0.000 abstract description 4
- 150000003016 phosphoric acids Chemical class 0.000 abstract description 3
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 30
- 230000001877 deodorizing effect Effects 0.000 description 19
- 230000000694 effects Effects 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000004332 deodorization Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004017 vitrification Methods 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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Abstract
Description
本発明は、消臭剤及びこれを用いた消臭複合体に関するものである。 The present invention relates to a deodorant and a deodorant complex using the deodorant.
消臭剤としては、臭気を吸着して脱臭するタイプのものが一般的である。吸着剤にはシリカゲル、ゼオライト、活性炭などが知られているが、中でも活性炭が広く用いられている。活性炭は非常に微細な細孔構造を有し、多くの種類の臭気を吸着することができるので、特許文献１に記載されているように、冷蔵庫用消臭剤等として古くから用いられ、また特許文献２に記載されているように、空気清浄用フィルタ等にも用いられている。
As the deodorant, a type that adsorbs odor and deodorizes is generally used. Silica gel, zeolite, activated carbon and the like are known as adsorbents, but activated carbon is widely used. Activated carbon has a very fine pore structure and can adsorb many kinds of odors. Therefore, as described in Patent Document 1, it has been used for a long time as a deodorant for refrigerators and the like. As described in
ところが吸着剤はあらゆる臭気を吸着できるものではなく、例えば活性炭は、アンモニアやアミンなどの塩基性の臭気に対しては十分な吸着効果を発揮することができない。そこで特許文献１では、活性炭の表面に硫黄、塩酸、リン酸、クエン酸などの酸成分を添着し、アンモニアやアミンなどの臭気の吸着性能を向上させている。 However, the adsorbent cannot adsorb all odors, and activated carbon, for example, cannot exert a sufficient adsorption effect on basic odors such as ammonia and amines. Therefore, in Patent Document 1, acid components such as sulfur, hydrochloric acid, phosphoric acid, and citric acid are impregnated on the surface of activated carbon to improve the adsorption performance of odors such as ammonia and amines.
ところが酸成分の添着量が多くなり吸着剤である活性炭の細孔を埋めることとなると活性炭本来の吸着性能が低下するため、酸成分の添着量には制限がある。従ってアンモニアやアミンなどの塩基性の臭気に対する消臭効果は限定的であった。また、長期間の使用により細孔が塞がれて吸着能力は次第に低下して行くため、効果の持続性にも問題があった。 However, if the amount of the acid component attached increases and the pores of the activated carbon, which is the adsorbent, are filled, the original adsorption performance of the activated carbon deteriorates, so that the amount of the acid component attached is limited. Therefore, the deodorizing effect on basic odors such as ammonia and amines was limited. In addition, since the pores are closed by long-term use and the adsorption capacity gradually decreases, there is also a problem in the sustainability of the effect.
従って本発明の目的は上記した従来の問題点を解決し、アンモニアやアミンなどの塩基性の臭気をも長期間にわたり効果的に脱臭することができる消臭剤及びこれを用いた消臭複合体を提供することである。 Therefore, an object of the present invention is to solve the above-mentioned conventional problems, and to effectively deodorize basic odors such as ammonia and amines for a long period of time, and a deodorant complex using the deodorant. Is to provide.
本発明者等は長年にわたり消臭剤の開発を行なってきたが、吸着剤を単独で用いた消臭剤の性能が、表面反応剤と組み合わせることにより相乗的に高まることを見出した。ここで表面反応剤とは、吸着剤のように臭気を吸着するのではなく、臭気が接触する表面における化学反応又は触媒反応により臭気を分解し、脱臭する剤を意味する。本発明の消臭剤は上記の発見に基づいてなされたものであり、吸着剤と、表面反応剤との混合物からなることを特徴とするものである。 The present inventors have been developing deodorants for many years, and have found that the performance of deodorants using an adsorbent alone is synergistically enhanced by combining with a surface reactant. Here, the surface reactant means an agent that decomposes and deodorizes the odor by a chemical reaction or a catalytic reaction on the surface where the odor comes into contact, instead of adsorbing the odor like an adsorbent. The deodorant of the present invention was made based on the above findings, and is characterized by being composed of a mixture of an adsorbent and a surface reactant.
本発明の消臭剤は、吸着剤の質量配合比が1〜99％であり、表面反応剤の質量配合比が99〜1％であることが好ましい。また本発明の消臭剤は、吸着剤が活性炭であり、表面反応剤がリン酸系ガラスであることが好ましい。本発明の消臭剤は質量比で、10〜90％の活性炭と90〜10％のリン酸系ガラスとを混合したものとすることが好ましい。なお、このリン酸系ガラスは、P2O5：30〜60モル％、MgO＋CaO＋ZnO：1〜60モル％、SiO2：0〜40モル％の組成を持つガラスとすることが好ましい。このリン酸系ガラスは、さらに1〜20モル％のB2O3を含有することができ、さらに1〜20モル％のAl2O3を含有することができ、さらに1〜37モル％のK2O＋Na2O＋Li2Oを含有することができる。 The deodorant of the present invention preferably has a mass compounding ratio of the adsorbent of 1 to 99% and a mass compounding ratio of the surface reactant of 99 to 1%. Further, in the deodorant of the present invention, it is preferable that the adsorbent is activated carbon and the surface reactant is phosphoric acid-based glass. The deodorant of the present invention is preferably a mixture of 10 to 90% activated carbon and 90 to 10% phosphoric acid glass in terms of mass ratio. The phosphoric acid-based glass preferably has a composition of P 2 O 5 : 30 to 60 mol%, MgO + CaO + ZnO: 1 to 60 mol%, and SiO 2 : 0 to 40 mol%. This phosphoric acid-based glass can further contain 1 to 20 mol% of B 2 O 3 , an additional 1 to 20 mol% of Al 2 O 3, and an additional 1 to 37 mol%. It can contain K 2 O + Na 2 O + Li 2 O.
また本発明の消臭複合体は、上記の消臭剤を、通気性の容器または袋に充てんするか、樹脂と混合成形するか、樹脂表面に担持させたことを特徴とするものである。なお、上記の消臭剤をフィルタエレメントの表面又は内部に担持させて消臭フィルタとすることができる。 The deodorant complex of the present invention is characterized in that the above deodorant is filled in a breathable container or bag, mixed with a resin, or supported on a resin surface. The above deodorant can be supported on the surface or inside of the filter element to form a deodorant filter.
本発明の消臭剤は、吸着剤と、表面反応剤との混合物からなるため、吸着剤が吸着できなかった臭気を表面反応剤の表面反応により分解することができる。好ましい実施形態では吸着剤が活性炭であり、表面反応剤がリン酸系ガラスである。この消臭剤は、活性炭単体では十分に吸着できなかったアンモニアやアミンなどの塩基性の臭気を、リン酸系ガラスから溶出させたリン酸イオンにより中和して脱臭することができる。しかも後記する実施例のデータに示すように、活性炭とリン酸系ガラスとを混合することによって予期しなかった相乗効果が生じ、夫々を単独で使用した場合における効果の総計よりも、大きい消臭効果を得ることができる。なお、表面反応剤の消臭効果は吸着剤の消臭効果よりも長期間にわたり維持されるので、効果の持続性が得られる。また本発明の消臭複合体は接触する空気中の臭気を除去することができる。 Since the deodorant of the present invention is composed of a mixture of an adsorbent and a surface reactant, the odor that the adsorbent could not adsorb can be decomposed by the surface reaction of the surface reactant. In a preferred embodiment, the adsorbent is activated carbon and the surface reactant is phosphoric acid glass. This deodorant can deodorize basic odors such as ammonia and amines, which could not be sufficiently adsorbed by activated carbon alone, by neutralizing them with phosphate ions eluted from phosphate-based glass. Moreover, as shown in the data of the examples described later, the unexpected synergistic effect is generated by mixing the activated carbon and the phosphoric acid-based glass, and the deodorization is larger than the total effect when each is used alone. The effect can be obtained. Since the deodorizing effect of the surface reactant is maintained for a longer period of time than the deodorizing effect of the adsorbent, the effect can be sustained. Further, the deodorant complex of the present invention can remove the odor in the air in contact with the deodorant complex.
以下に本発明の実施形態を説明する。
本発明の消臭剤は、吸着剤と、表面反応剤との混合物からなる。吸着剤としてはシリカゲル、ゼオライト、活性炭、珪藻土などが知られているが、特に活性炭を用いることが好ましい。また表面反応剤としては臭気を分解することができる各種の触媒や薬品を用いることができるが、以下に説明する実施形態では、吸着剤は活性炭であり、表面反応剤はリン酸系ガラスである。
An embodiment of the present invention will be described below.
The deodorant of the present invention comprises a mixture of an adsorbent and a surface reactant. Silica gel, zeolite, activated carbon, diatomaceous earth and the like are known as the adsorbent, but it is particularly preferable to use activated carbon. Further, as the surface reactant, various catalysts and chemicals capable of decomposing odor can be used, but in the embodiment described below, the adsorbent is activated carbon and the surface reactant is phosphoric acid-based glass. ..
活性炭は消臭剤として従来から用いられているものであり、ヤシ殻炭、木炭、石炭を原料として水蒸気賦活した粒状活性炭を用いることができるほか、短繊維状の活性炭を用いることもできる。活性炭の表面には非常に微細な細孔構造が形成されており、各種の臭気成分を吸着することができる。 Activated carbon has been conventionally used as a deodorant, and can be steam-activated granular activated carbon using coconut shell charcoal, charcoal, or coal as a raw material, or short fibrous activated carbon can also be used. A very fine pore structure is formed on the surface of the activated carbon, and various odorous components can be adsorbed.
しかし前記したように、活性炭はアンモニアやアミンなどの塩基性の臭気成分の吸着性能が不十分である。そこで本発明では表面反応剤として、リン酸系ガラスの粉体を混合する。リン酸系ガラスはガラスの網目形成材としてP2O5を含有するガラスであり、大気中の水分と接触すると酸性のリン酸イオンを溶出する溶解性ガラスである。その溶出速度はガラス組成により比較的自由にコントロールすることができる。溶出したリン酸イオンはそれ自体がアンモニアやアミンを中和して消臭するとともに、活性炭の表面を化学的に修飾し、酸成分を添着した活性炭として機能させ、これにより前記した相乗効果を生ずるものである。 However, as described above, activated carbon has insufficient adsorption performance for basic odorous components such as ammonia and amines. Therefore, in the present invention, a phosphoric acid-based glass powder is mixed as a surface reactant. Phosphate-based glass is a glass containing P 2 O 5 as a glass network forming material, and is a soluble glass that elutes acidic phosphate ions when it comes into contact with moisture in the atmosphere. The dissolution rate can be controlled relatively freely by the glass composition. The eluted phosphate ions themselves neutralize and deodorize ammonia and amines, and chemically modify the surface of the activated carbon to function as activated carbon with an acid component attached, thereby producing the synergistic effect described above. It is a thing.
以下に、リン酸系ガラスの組成を説明する。本発明で用いるリン酸系ガラスは、P2O5：30〜60モル％、MgO＋CaO＋ZnO：1〜60モル％、SiO2：0〜40モル％の組成とすることが好ましい。 The composition of the phosphoric acid-based glass will be described below. The phosphoric acid-based glass used in the present invention preferably has a composition of P 2 O 5 : 30 to 60 mol%, MgO + CaO + ZnO: 1 to 60 mol%, and SiO 2 : 0 to 40 mol%.
P2O5はガラスの網目形成材であり、ガラスに溶解性を与えるとともに、表面のpHを低下させる主要成分である。P2O5が30モル％未満であるとガラスに十分な溶解性を与えることができず、消臭効果に寄与するリン酸成分を十分に得ることができなくなる。逆に60モル％を超えると吸湿性が過度に高くなり、取扱い性が低下するので好ましくない。 P 2 O 5 is a mesh-forming material for glass, and is a main component that imparts solubility to glass and lowers the pH of the surface. If P 2 O 5 is less than 30 mol%, sufficient solubility cannot be given to the glass, and a phosphoric acid component that contributes to the deodorizing effect cannot be sufficiently obtained. On the contrary, if it exceeds 60 mol%, the hygroscopicity becomes excessively high and the handleability deteriorates, which is not preferable.
MgO、CaO、ZnOのアルカリ土類金属成分は何れも、ガラスの溶解速度とpHに影響を与える成分である。MgOはガラスの溶解速度を下げ、pHを上げる性質を持つ。CaOも同様に、ガラスの溶解速度を下げ、pHを上げる性質を持つ。ZnOは溶解速度を上げ、pHを上げる性質を持つ。これらの３成分を合計量で1モル％以上含有させることにより、ガラス化を容易にすることができる。またこれらの３成分の合計量が1モル％未満であると、相対的にP2O5が増加することとなり、吸湿性が過度に高くなり、取扱い性が低下する。逆に合計量が60モル％を超えると白濁化したり不均質となり、ガラス化が困難となる。 The alkaline earth metal components of MgO, CaO, and ZnO are all components that affect the dissolution rate and pH of glass. MgO has the property of lowering the melting rate of glass and raising the pH. CaO also has the property of lowering the melting rate of glass and raising the pH. ZnO has the property of increasing the dissolution rate and increasing the pH. Vitrification can be facilitated by containing 1 mol% or more of these three components in total. If the total amount of these three components is less than 1 mol%, P 2 O 5 will increase relatively, the hygroscopicity will become excessively high, and the handleability will decrease. On the contrary, if the total amount exceeds 60 mol%, it becomes cloudy or inhomogeneous, and vitrification becomes difficult.
SiO2はガラスの網目形成材であるが、リン酸系ガラスの必須成分ではない。SiO2を加えることによりガラスの骨格が強化され取扱い性が向上する。しかし40モル％を超えると相対的にP2O5が減少するため、消臭効果に寄与するリン酸成分が減少し、本発明に用いるリン酸系ガラスとしては不適当となる。 SiO 2 is a glass network forming material, but it is not an essential component of phosphoric acid-based glass. By adding SiO 2 , the skeleton of the glass is strengthened and the handleability is improved. However, if it exceeds 40 mol%, P 2 O 5 decreases relatively, so that the phosphoric acid component that contributes to the deodorizing effect decreases, which makes it unsuitable for the phosphoric acid-based glass used in the present invention.
上記の基本組成に更に、1〜20モル％のB2O3を含有することができる。B2O3はpHの低下に直接寄与するものではないが、1モル％以上を添加することにより、リン酸イオンの溶出を促進する効果がある。しかし20モル％を超えるとpHの低下を阻害するので好ましくない。 In addition to the above basic composition, 1 to 20 mol% of B 2 O 3 can be contained. B 2 O 3 does not directly contribute to the decrease in pH, but the addition of 1 mol% or more has the effect of promoting the elution of phosphate ions. However, if it exceeds 20 mol%, it inhibits the decrease in pH, which is not preferable.
上記の組成に更に、1〜20モル％のAl2O3を含有させることができる。Al2O3はガラスの網目を強化し、潮解性を低下させて取扱い性を高める効果がある。しかし20モル％を超えるとリン酸イオンの溶出が抑制されるので、好ましくない。 The above composition can further contain 1-20 mol% Al 2 O 3. Al 2 O 3 has the effect of strengthening the mesh of glass, reducing deliquescent and improving handleability. However, if it exceeds 20 mol%, the elution of phosphate ions is suppressed, which is not preferable.
上記の組成に更に、1〜37モル％のK2O＋Na2O＋Li2Oを含有させることができる。これらのアルカリ金属成分は何れもガラスの溶解性を高めるが、pHを上げる成分であるため37モル％を超えることは好ましくない。pHを低く保つために特に好ましい範囲は、1〜7モル％である。このほか、着色剤として少量のCu、Co等の金属成分を添加し、青色のガラスとすることもできる。 The above composition can further contain 1-37 mol% K 2 O + Na 2 O + Li 2 O. All of these alkali metal components increase the solubility of glass, but since they are components that increase pH, it is not preferable to exceed 37 mol%. A particularly preferred range for keeping the pH low is 1-7 mol%. In addition, a small amount of metal components such as Cu and Co can be added as a colorant to obtain a blue glass.
このリン酸系ガラスは、好ましくはD50＝0.1〜55μm、より好ましくはD50＝0.5〜5μm、かつD90が20μm以下の粉粒体として活性炭と混合する。消臭効果を高めるためには粒径を小さくして比表面積を高めることが好ましいのであるが、D50を0.1μm未満とすることは粉砕コストが嵩むうえ、活性炭の細孔を埋める可能性があるため、工業的にはD50＝0.5〜5μmの範囲が好ましい。 This phosphoric acid-based glass is preferably mixed with activated carbon as a powder or granular material having D 50 = 0.1 to 55 μm, more preferably D 50 = 0.5 to 5 μm, and D 90 of 20 μm or less. In order to enhance the deodorizing effect, it is preferable to reduce the particle size to increase the specific surface area, but setting D 50 to less than 0.1 μm increases the crushing cost and may fill the pores of activated carbon. Therefore, industrially, the range of D 50 = 0.5 to 5 μm is preferable.
吸着剤の質量配合比を1〜99％とし、表面反応剤の質量配合比を99〜1％とすることが好ましい。この範囲を外れると、吸着剤と表面反応剤をそれぞれ単独で使用した状態に近くなり、これらを混合することによる相乗効果を得ることができなくなる。活性炭とリン酸系ガラスの混合比は、質量比で10〜90％の活性炭と90〜10％のリン酸系ガラスとすることが好ましい。これらの混合比と消臭効果の関係については、次の実施例において詳しく説明する。 It is preferable that the mass compounding ratio of the adsorbent is 1 to 99% and the mass compounding ratio of the surface reactant is 99 to 1%. If it is out of this range, the adsorbent and the surface reaction agent are used alone, and the synergistic effect of mixing them cannot be obtained. The mixing ratio of the activated carbon and the phosphoric acid-based glass is preferably 10 to 90% by mass ratio of the activated carbon and 90 to 10% of the phosphoric acid-based glass. The relationship between these mixing ratios and the deodorizing effect will be described in detail in the following examples.
上記した本発明の消臭剤を、通気性の容器または袋に充てんして消臭複合体とすることができる。この消臭複合体は例えば冷蔵庫、下駄箱、居室等の消臭に用いることができる。また、上記した消臭剤を樹脂と混合成形するか、樹脂表面に担持させた消臭複合体とすることができる。この消臭複合体は樹脂製品に消臭効果を付与したものであり、樹脂が繊維であれば消臭性を持つ衣料を得ることができる。さらに上記の消臭剤をフィルタエレメントの表面又は内部に担持させて消臭フィルタとすれば、例えばエアコンディショナを通過する空気を消臭し、室内や車室内を快適な環境とすることができる。 The deodorant of the present invention described above can be filled in a breathable container or bag to form a deodorant complex. This deodorant complex can be used, for example, for deodorizing refrigerators, shoe racks, living rooms, and the like. Further, the above-mentioned deodorant can be mixed and molded with a resin, or a deodorant complex supported on the resin surface can be obtained. This deodorant complex imparts a deodorant effect to a resin product, and if the resin is a fiber, clothing having a deodorant property can be obtained. Further, if the above deodorant is supported on the surface or inside of the filter element to form a deodorizing filter, for example, the air passing through the air conditioner can be deodorized and the interior or the vehicle interior can be made a comfortable environment. ..
市販の活性炭の粉末とリン酸系ガラスの粉末を準備した。リン酸系ガラスは、P2O5：57モル％、MgO：10モル％、B2O3：17モル％、Al2O3：8モル％、Li2O：3モル％、ZnO：5モル%となるようにガラス原料を調合し、溶融後に冷却、さらに粉砕してD50＝0.5〜5μm、かつD90が20μm以下の粉粒体としたものである。これらをリン酸系ガラス：活性炭の質量比が0：100（活性炭のみ）、10：90、50：50、90：10、0：100（リン酸系ガラスのみ）の５段階となるように混合し、試験用の消臭剤とした。消臭試験は、温度20℃の室内に置かれた容量が１０ＬのＢＳバッグに、１０Ｌの臭気成分と消臭剤を封入し、臭気成分の濃度変化を検知管で測定する方法で行った。臭気成分はアンモニア100ppmとホルムアルデヒド10ppmである。 Commercially available activated carbon powder and phosphoric acid-based glass powder were prepared. Phosphoric acid-based glass is P 2 O 5 : 57 mol%, MgO: 10 mol%, B 2 O 3 : 17 mol%, Al 2 O 3 : 8 mol%, Li 2 O: 3 mol%, ZnO: 5 The glass raw material was prepared so as to be mol%, cooled after melting, and further pulverized to obtain powders and granules having D 50 = 0.5 to 5 μm and D 90 of 20 μm or less. These are mixed so that the mass ratio of phosphoric acid-based glass: activated carbon is 0: 100 (activated carbon only), 10:90, 50:50, 90:10, 0: 100 (phosphoric acid-based glass only). Then, it was used as a deodorant for testing. The deodorization test was carried out by enclosing a 10 L odor component and a deodorant in a BS bag having a capacity of 10 L placed in a room at a temperature of 20 ° C. and measuring a change in the concentration of the odor component with a detector tube. The odorous components are 100 ppm of ammonia and 10 ppm of formaldehyde.
（活性炭のみからなる消臭剤の消臭性能）
活性炭のみからなる消臭剤を用い、10分後のアンモニアとホルムアルデヒドの消臭率を測定したところ、表１の結果が得られた。消臭率が60％未満は△、60％を超え80％未満を〇、80％以上を◎として表示した。図１はそのグラフである。縦軸は消臭率（％）、横軸は消臭剤の量（mL）である。
(Deodorant performance of deodorant consisting only of activated carbon)
The deodorant rates of ammonia and formaldehyde after 10 minutes were measured using a deodorant consisting only of activated carbon, and the results shown in Table 1 were obtained. The deodorant rate of less than 60% was indicated as △, the deodorant rate of more than 60% and less than 80% was indicated as 〇, and the deodorization rate of 80% or more was indicated as ◎. FIG. 1 is the graph. The vertical axis is the deodorant rate (%), and the horizontal axis is the amount of deodorant (mL).
（リン酸系ガラスのみからなる消臭剤の消臭性能）
リン酸系ガラスのみからなる消臭剤を用い、10分後のアンモニアとホルムアルデヒドの消臭率を測定したところ、表２の結果が得られた。図２はそのグラフである。縦軸、横軸は前記と同じである。
(Deodorant performance of deodorant consisting only of phosphoric acid glass)
The deodorant rates of ammonia and formaldehyde after 10 minutes were measured using a deodorant consisting only of phosphoric acid-based glass, and the results shown in Table 2 were obtained. FIG. 2 is the graph. The vertical axis and the horizontal axis are the same as described above.
（本発明の消臭剤の消臭性能）
次に、活性炭とリン酸系ガラスを混合した消臭剤を用い、10分後のアンモニアとホルムアルデヒドの消臭率を測定した。混合比は前記した５段階であるが、総量は全て1mLに統一した。その結果は表３の通りであり、図３はそのグラフである。
(Deodorant performance of the deodorant of the present invention)
Next, using a deodorant that was a mixture of activated carbon and phosphoric acid glass, the deodorizing rates of ammonia and formaldehyde after 10 minutes were measured. The mixing ratio was the above-mentioned 5 steps, but the total amount was unified to 1 mL. The results are shown in Table 3, and FIG. 3 is a graph thereof.
（評価）
表２と図２に示されるように、リン酸系ガラスはホルムアルデヒドに対する消臭効果がないため、表３と図３に示される活性炭とリン酸系ガラスを混合した消臭剤の消臭効果は、表１と図１に示される活性炭単独の消臭効果とほぼ同様である。一方、アンモニアに対しては、活性炭とリン酸系ガラスはともに消臭効果を持つが、消臭剤として活性炭を0.5ｍLとしたときの消臭率は9％、リン酸系ガラスを0.5ｍLとしたときの消臭率は68％であり、これらを単に加算すると77％となる。しかし両者を50：50に混合したとき、即ち0.5ｍLの活性炭と0.5ｍLのリン酸系ガラスを混合したときのアンモニア消臭率は、表３と図３に示されるとおり81％であって、4％に相当する相乗効果が認められた。その理由は、リン酸系ガラスが活性炭の吸着性能を高めたためであると想定される。
(evaluation)
As shown in Tables 2 and 2, phosphoric acid-based glass does not have a deodorizing effect on formaldehyde. Therefore, the deodorizing effect of the deodorant obtained by mixing activated carbon and phosphoric acid-based glass shown in Tables 3 and 3 is , The deodorizing effect of activated carbon alone shown in Table 1 and FIG. 1 is almost the same. On the other hand, for ammonia, both activated carbon and phosphoric acid glass have a deodorizing effect, but when activated carbon is 0.5 mL as a deodorant, the deodorizing rate is 9% and phosphoric acid glass is 0.5 mL. The deodorant rate at the time of this is 68%, and when these are simply added, it becomes 77%. However, when both were mixed at 50:50, that is, when 0.5 mL of activated carbon and 0.5 mL of phosphoric acid glass were mixed, the ammonia deodorization rate was 81% as shown in Table 3 and FIG. A synergistic effect equivalent to 4% was observed. It is presumed that the reason is that the phosphoric acid-based glass has improved the adsorption performance of activated carbon.
（フィルタに用いた場合の消臭性能）
消臭剤を５質量％の比率で内部に練り込んだ樹脂製のフィルター素材を100cm2に切断し、１８℃の室内に置かれた容量が５ＬのＢＳバッグに、３Ｌの臭気成分とともに封入し、２時間後の臭気成分の濃度変化を検知管で測定した。臭気成分はアンモニア100ppmとホルムアルデヒド10ppmである。その結果は表４と図４に示す通りであり、本発明の消臭剤を担持させたフィルターは、アンモニアとホルムアルデヒドをともに効果的に消臭することができた。
(Deodorant performance when used as a filter)
A resin filter material in which a deodorant is kneaded at a ratio of 5% by mass is cut into 100 cm 2 , and placed in a room at 18 ° C. in a BS bag with a capacity of 5 L and sealed with 3 L of odor components. The change in the concentration of the odorous component after 2 hours was measured with a detector tube. The odorous components are 100 ppm of ammonia and 10 ppm of formaldehyde. The results are shown in Table 4 and FIG. 4, and the filter carrying the deodorant of the present invention was able to effectively deodorize both ammonia and formaldehyde.
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| JP2017176936A (en) * | 2016-03-28 | 2017-10-05 | ニッタ株式会社 | Chemical filter |
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