JP2023109156A - ガス吸着材料及びその製造方法並びに該ガス吸着材料を適用したスピーカボックス - Google Patents
ガス吸着材料及びその製造方法並びに該ガス吸着材料を適用したスピーカボックス Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 38
- 239000003463 adsorbent Substances 0.000 title claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 3
- 238000001179 sorption measurement Methods 0.000 claims abstract description 31
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 26
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000010457 zeolite Substances 0.000 claims abstract description 26
- 239000004005 microsphere Substances 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 238000005054 agglomeration Methods 0.000 claims abstract description 4
- 230000002776 aggregation Effects 0.000 claims abstract description 4
- 239000011806 microball Substances 0.000 claims description 50
- 239000002245 particle Substances 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 239000007900 aqueous suspension Substances 0.000 claims description 6
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 229920006158 high molecular weight polymer Polymers 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- -1 expanded spheres Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims description 2
- 239000011859 microparticle Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 229920000642 polymer Polymers 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 31
- 238000001878 scanning electron micrograph Methods 0.000 description 6
- 239000002808 molecular sieve Substances 0.000 description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000003522 acrylic cement Substances 0.000 description 1
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- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
Description
S1では、ゼオライト粉末、膨張球、接着剤及び水を混合し、水性懸濁液を調製する。
S2では、加圧により前記水性懸濁液をノズルを通過させて懸濁液滴を製造し、前記懸濁液滴を凍結して固体微粒子を得る。
S3では、前記固体微粒子を低温で乾燥させ、初期マイクロボールを得て、前記初期マイクロボールにおける膨張球の粒径は、第1サイズである。
S4では、前記初期マイクロボールを第1温度で加熱した後、膨張球が膨張した後の中間マイクロボールを得て、前記中間マイクロボールにおける膨張球の粒径は、第2サイズである。
S5では、前記中間マイクロボールを第2温度に置いて、前記ガス吸着材料を得る。
ゼオライト粉末、水、ポリマーゲル剤及び膨張球を秤量し、そのうち、ゼオライト粉末、脱イオン水、ポリマーゲル剤と膨張球の質量比は、1:(0.6~1.5):(0.03~0.15):(0.002~0.04)であり、膨張球の添加量を合理的な範囲内に制御する必要があり、少なすぎる膨張球の添加量は、内部孔路構造を増大させる効果が現れず、多すぎる膨張球を添加することは、マイクロボール内部の孔路構造が多すぎ、機械的強度が低下し、球体が崩壊することと、
ゼオライト粉末、脱イオン水、ポリマーゲル剤及び膨張球粉末を均一に混合し、懸濁液を得ることと、
前記懸濁液を常温で3~5h撹拌し、各成分を懸濁液中で均一に分布させることと、
前記均一に攪拌された懸濁液を濾過網で濾過し、濾過して得られた懸濁液を造粒装置に置くことと、
造粒装置によって懸濁液を均一なサイズの小液滴に分散させ、凍結乾燥した後に初期マイクロボールを得ることと、
前記得られた初期マイクロボールを80~190℃のオーブンに2~4h置き、その後に取り出して室温で冷却し、マイクロボール中の膨張球ポリマーのハウジングが該温度で軟化し、内部の液体アルカンが気化し、圧力が増大し、それによりマイクロボールの内部に中空構造を作り出し、室温で冷却した後に該中空構造は、安定化し、中間マイクロボールを得ることと、
前記中間マイクロボールを200~250℃のオーブンに5~15min置き、その後に取り出して室温で冷却し、膨張球ハウジングが該温度で破裂して収縮し、内部のガスを放出し、孔路を残し、低い温度及び短い焼成時間にすることにより、試料中の接着剤を収縮させず、マイクロボール内の孔路を閉塞するか又は機械的強度が低下することを回避し、冷却後の試料は、本発明に係るガス吸着材料であることとを含む。他の好ましい実施形態において、前記中間マイクロボールを150~200℃の真空オーブンに10min置き、取り出した後に室温で冷却すれば、本発明に係るガス吸着材料を得ることができる。すなわち、真空環境で、前記ガス吸着材料の製造方法において、第2温度を150~200℃に低下させてもよい。
一、ZSM-5(MFI)ゼオライト20g、脱イオン水20g、アクリル接着剤2g、膨張球粉末0.2gを秤量することと、
二、前記原料を均一に混合して懸濁液を得ることと、
三、引き続き懸濁液を常温で2h撹拌し、超音波で0.5h浸漬し、次に2h撹拌することと、
四、引き続き懸濁液を300メッシュの濾過網で濾過することと、
五、引き続き懸濁液を造粒装置によって均一なサイズの小さい液滴に分散させ、液滴が冷却塔に入った後に固体粒子に凍結することと、
六、固体粒子を-40℃の真空オーブンに入れて12h乾燥させ、初期マイクロボールを得ることと、
七、初期マイクロボールを150℃のオーブンに2h置き、取り出した後に室温で0.5h冷却し、中間マイクロボールを得ることと、
八、中間マイクロボールを210℃のオーブンに10min置き、取り出した後に室温で0.5h冷却し、前記ガス吸着材料を得ることとを含む。
Claims (11)
- ゼオライトと接着剤とで凝集して形成された複数のマイクロボールを含むガス吸着材料であって、
複数の前記マイクロボールのうちの少なくとも一部の前記マイクロボールは、多孔質構造を有し、且つ内部に膨張球が設けられていることを特徴とするガス吸着材料。 - 前記ゼオライトは、MFI、FER、MELなどの構造タイプのうちの一種又は複数種であり、前記ゼオライトの骨格構造は、主に酸化ケイ素及び酸化アルミニウムで構成され、ケイ素とアルミニウムとの質量比は、50~800であることを特徴とする請求項1に記載のガス吸着材料。
- 前記膨張球が膨張する前の粒径は、第1サイズであり、前記膨張球が膨張した後の粒径は、第2サイズであり、前記第2サイズは、前記マイクロボールの平均サイズの1%~20%であることを特徴とする請求項1に記載のガス吸着材料。
- 前記膨張球の粒径は、第1温度において前記第1サイズから前記第2サイズまで膨張可能であり、前記膨張球は、第2温度において破裂して収縮してガスを放出することにより、前記マイクロボールの内部に孔路構造を残すことを特徴とする請求項3に記載のガス吸着材料。
- 前記膨張球は、熱可塑性を有するハウジングと、内部充填物とを含み、
前記ハウジングは、高分子ポリマーで構成され、加熱されたときに軟化し、且つ圧力を受けたときに体積が膨張し、
前記内部充填物は、液体アルカンであり、加熱されたときに気化することにより、前記膨張球の内部圧力を増加させることを特徴とする請求項1~4のいずれか一項に記載のガス吸着材料。 - 請求項1~5のいずれか一項に記載のガス吸着材料の製造方法であって、
ゼオライト粉末、膨張球、接着剤及び水を混合し、水性懸濁液を調製することと、
加圧によって前記水性懸濁液をノズルを通過させて懸濁液滴を製造し、前記懸濁液滴を凍結して固体微粒子を得ることと、
前記固体微粒子を低温で乾燥させ、初期マイクロボールを得る、ことと、
前記初期マイクロボールを第1温度で加熱した後、膨張球が膨張した後の中間マイクロボールを得ることと、
前記中間マイクロボールを第2温度に置いて、前記ガス吸着材料を得ることと、を含み、
前記初期マイクロボールにおける膨張球の粒径は、第1サイズであり、前記中間マイクロボールにおける膨張球の粒径は、第2サイズであることを特徴とするガス吸着材料の製造方法。 - 前記ゼオライト粉末と水と接着剤と膨張球との質量比は、1:(0.6~1.5):(0.03~0.15):(0.002~0.04)であることを特徴とする請求項6に記載の製造方法。
- 前記第1温度は、80~190℃であり、前記第2温度は、200℃以上であることを特徴とする請求項6に記載の製造方法。
- 前記膨張球の質量は、ゼオライトの質量の0.1%~5%であることを特徴とする請求項6に記載の製造方法。
- 前記中間マイクロボールは、室温まで降温した後、第2温度まで再加熱されることを特徴とする請求項6に記載の製造方法。
- 収容空間を有するハウジングと、前記ハウジング内に配置された発音単体と、前記発音単体とハウジングとで囲まれたバックチャンバとを含むスピーカであって、
前記バックチャンバには、請求項1~5のいずれか一項に記載のガス吸着材料が充填されていることを特徴とするスピーカ。
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