JP2023532466A - 多機能性粉末imcreeおよびその製造方法 - Google Patents
多機能性粉末imcreeおよびその製造方法 Download PDFInfo
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- JP2023532466A JP2023532466A JP2022580067A JP2022580067A JP2023532466A JP 2023532466 A JP2023532466 A JP 2023532466A JP 2022580067 A JP2022580067 A JP 2022580067A JP 2022580067 A JP2022580067 A JP 2022580067A JP 2023532466 A JP2023532466 A JP 2023532466A
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- oxide
- component
- multifunctional powder
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Classifications
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Abstract
Description
{(Cai-Caf)/Cai}/{(Cfi-Cff)/Cfi}
アンモニア脱臭率(%)=(Cai-Caf)/Caix100
ホルムアルデヒド脱臭率(%)=(Cfi-Cff)/Cfix100
菌減少率(6)=(X-Y)/X * 100
{(Cai-Caf)/Cai}/{(Cfi-Cff)/Cfi}
アンモニア脱臭率(%)=(Cai-Caf)/Caix100
ホルムアルデヒド脱臭率(%)=(Cfi-Cff)/Cfix100
菌減少率(%)=(X-Y)/X*100
天然鉱物原料を精製した後、325メッシュサイズに粉砕して酸化カルシウム(CaO)、酸化マグネシウム(MgO)および酸化アルミニウム(Al2O3)を含む第1成分;および三酸化硫黄(SO3)および酸化ストロンチウム(SrO)を含む第2成分が含まれた多機能性粉末を製造した。その組成は、下記の表1のとおりである。
表1を参照すると、前記第1成分対前記第2成分の重量比は99.7:0.3であり、前記第1成分中の酸化マグネシウム対酸化アルミニウムの重量比は18.3:1であり、前記第2成分中の三酸化硫黄対酸化ストロンチウムの重量比は5.4:1である。
表2を参照すると、前記第1成分対前記第2成分の重量比は97:3であり、前記第1成分全体100重量%のうち、前記酸化ケイ素および前記酸化アルミニウムの総重量は約97%であり、前記酸化ケイ素対前記酸化アルミニウムの重量比は1.09:1であり、前記酸化鉄対前記酸化ナトリウムの重量比は1.43:1である。
実験例1:遠赤外線放射特性評価
前記実施例1および2の多機能性粉末それぞれについて、KFIA-FI-1005標準規格の方法によって遠赤外線放射率および放射エネルギーを測定した。具体的には、37Cで測定され、フーリエ変換赤外分光法(FT-IR Spectrometer)を用いた黒体(Black body)に対する測定結果である。その結果は、下記表3に記載されたとおりである。
前記実施例1および2の多機能性粉末それぞれに対して、1.0gの試料を用意し、23±5℃の温度および45±10%の相対湿度条件下で2L容積の密閉空間内に100ppm容積%のアンモニアガスまたはホルムアルデヒドガスを注入した後の初期ガス濃度値(C)を測定した後、前記多機能性粉末1.0gを前記密閉空間内に配置した後、30分、60分および120分が経過したそれぞれの時刻にガス濃度値(C)を測定した。続いて、下記式2および下記式3によってそれぞれアンモニア脱臭率およびホルムアルデヒド脱臭率を測定し、下記式1の有害ガス脱臭均衡指数(Harmful gas deodorization balance index)を導き出した。その結果は、下記表3に記載されたとおりである。
{(Cai-Caf)/Cai}/{(Cfi-Cff)/Cfi}
アンモニア脱臭率(%)=(Cai-Caf)/Caix100
ホルムアルデヒド脱臭率(%)=(Cfi-Cff)/Cfix100
前記実施例1および2の多機能性粉末それぞれに対して、1.0gの試料を用意し、これをコニカルチューブ(conical tube)に入れた後、脱イオン水(deionized water)10mLを加えて24時間の間、振とう抽出した後、遠心分離して上澄み液を得た。前記上澄み液に対してORPを測定した。
1) ORPを測定するために、Water Quality Analyzer HORIBA LAQUA F-72(Kyoto, Japan)を使用した。
2) 電極は、HORIBA 9300-10D ORP Electrode(Kyoto, Japan)を使用した。
3) 試料のORPを測定する前に、ORP標準溶液Quinhydrone 263mV±30mV、25℃(Thermo scientific, Waltham, MA, USA)を使用し、補正後測定した。
4) 各試料は、10回測定した後、平均と標準誤差を示した。その結果は、下記表3のとおりである。
前記実施例1および2の多機能性粉末それぞれに対して、1.0gの試料を用意した後、各試料を蒸留水10mL内に分散させた溶液を製造した後、24±2℃の温度および35±5%の相対湿度条件下で30分配置した後、前記溶液の上澄み液に対してThermo/orion 5 star pH meterを用いてpHを測定した。
前記実施例1および2の多機能性粉末それぞれについて、下記の方法で塩基置換容量を測定した。浸出管、洗浄液容器と水器が連結された装置を設置する。前記浸出管は、長さ4cm、内径0.3cmの脚と長さ12cm、内径1.3cmの管で構成され、前記洗浄液容器は100ml容量で10mlの目盛があるものを使用した。前記浸出管の下部に脱脂綿を少量入れて支持層とし、その上に濾過紙(6種)を細かく切って水に入れて沸かし、濾過パルプを作った後、5mmの厚さで濾過綿を作る。
続いて、前記浸出管の下部に酢酸アンモニウム液数mlを加え、前記多機能性粉末5~10gを少量ずつ入れて浸らせるものの、洗浄液容器のコックを調整して酢酸アンモニウム液100mlが4~8時間以内に浸透するように落とす速度を調節する。浸透液は、置換塩基の定量分析に使用する。浸透完了後、少量のアルコールで浸透管の内側上部を洗浄し、アルコール50mlを用いて過剰な酢酸アンモニウム液を除去する。NH4+イオンで飽和した分析試料を10%の塩化ナトリウム液100mlに置換してNH4+を置換浸出して供試液とする。供試液の全量または一定量を蒸留フラスコに取り、浸出液中のアンモニア態窒素を窒素定量法により蒸留し、滴定してNH4+を定量し、得られた数値を試料100g当たりの当量(me)に換算して塩基置換容量とする。
前記実施例1および2の多機能性粉末それぞれに対して、試料10gを取り、100mlの三角フラスコに入れ、蒸留水50mlを加えて1時間振とうする。続いて、濾紙で濾過して電気伝導度測定装置で電気伝導度を測定した。
前記実施例1および2の多機能性粉末それぞれに対して、メッシュ(mesh)を用いて分級処理を実施し、通常の粒度分析方法を用いてそれぞれの平均粒径を算出した。
前記実施例1の多機能性粉末に対して、3gの試料を準備して蒸留水100mLにこれをよく混ぜて混合液を製造した。続いて、前記混合液を5分間放置して沈殿させた後、上澄み液を評価に使用した。前記上澄み液をそれぞれ黄色ブドウ球菌(ATCC 6538, Staphylococcus aureus)、大腸菌(ATCC 8739, Escherichia coli)、肺炎菌(ATCC 4352、Klebsiella pneumonia)および緑膿菌(ATCC 10145, Pseudomonas aeruginosa)と5分間反応させた後、下記式4による菌減少率(%)を算出した。その結果は、下記表3に記載されたとおりである。
菌減少率(%)=(X-Y)/X * 100
Claims (10)
- 酸化ケイ素(SiO2)、酸化アルミニウム(Al2O3)、酸化カルシウム(CaO)、酸化マグネシウム(MgO)およびこれらの組み合わせからなる群から選択された一つを含む第1成分;および
酸化鉄(Fe2O3)、酸化カリウム(K20)、酸化ナトリウム(Na2O)、酸化ストロンチウム(SrO)、三酸化硫黄(SO3)、酸化ホウ素(B2O3)、酸化マンガン(MnO)、二酸化チタン(TiO2)およびこれらの組み合わせからなる群から選択された少なくとも一つを含む第2成分;を含み、
37℃で5μmないし20μm波長領域の遠赤外線放射率が0.5%ないし5%であり、
下記式1による有害ガス脱臭均衡指数(Harmful gas deodorization balance index)が0.8ないし2.0である、
多機能性粉末:
[式1]
{(Cai-Caf)/Cai}/{(Cfi-Cff)/Cfi}
前記式1において、前記Caiは23±5℃の温度および45±10%の相対湿度条件下で2L容積の密閉空間内に100ppm容積%のアンモニアガスを注入した後の初期ガス濃度値であり、前記Cafは前記密閉空間内に前記多機能性粉末1.0gを配置し、120分経過した後のアンモニアガス濃度値であり、前記Cfiは23±5℃の温度および45±10%の相対湿度条件下で2L容積の密閉空間内に100ppm容積%のホルムアルデヒドガスを注入した後の初期ガス濃度値であり、前記Cffは前記密閉空間内に前記多機能性粉末1.0gを配置し、120分経過した後のホルムアルデヒドガス濃度値である。 - [式2]
アンモニア脱臭率(%)=(Cai-Caf)/Caix100
前記式2において、前記Caiは23℃の温度および45%の相対湿度条件下で2L容積の密閉空間内に100ppm容積%のガスを注入した後の初期ガス濃度値であり、前記Cafは前記密閉空間内に前記多機能性粉末1.0gを配置し、120分経過した後のガス濃度値である、請求項1に記載の前記式2によるアンモニア脱臭率が90%以上である多機能性粉末。 - [式3]
ホルムアルデヒド脱臭率(%)=(Cfi-Cff)/Cfix100
前記式3において、前記Cfiは23℃の温度および45%の相対湿度条件下で2L容積の密閉空間内に100ppm容積のガスを注入した後の初期ガス濃度値であり、前記Cffは前記密閉空間内に前記多機能性粉末1.0gを配置し、120分経過した後のガス濃度値である、請求項1に記載の前記式3によるホルムアルデヒド脱臭率(%)が50%以上である多機能性粉末。 - [式4]
菌減少率(%)=(X-Y)/X * 100
前記式4において、前記Xは対照群の生菌数(CFU, Colony-Forming Unit)であり、前記Yは前記の多機能性粉末を処理した試料処理群の生菌数(CFU)である、請求項1に記載の黄色ブドウ球菌(ATCC 6538, Staphylococcus aureus)、大腸菌(ATCC 8739, Escherichia coli)、肺炎菌(ATCC 4352, Klebsiella pneumonia)および緑膿菌(ATCC 10145, Pseudomonas aeruginosa)それぞれに対して、前記式4による菌減少率(%)が90%以上である多機能性粉末。 - 前記第1成分対前記第2成分の重量比が70:30以上、100:0未満である、請求項1に記載の多機能性粉末。
- 前記第1成分が酸化カルシウム(CaO)および酸化マグネシウム(MgO)を含み、前記第2成分が三酸化硫黄(SO3)および酸化ストロンチウム(SrO)を含み、前記第1成分対前記第2成分の重量比が95:5以上、100:0未満である、請求項1に記載の多機能性粉末。
- 前記第1成分の全重量100重量%中の前記酸化カルシウムの重量が90重量%以上である、請求項6に記載の多機能性粉末。
- 前記第1成分が酸化ケイ素(SiO2)、酸化アルミニウム(Al2O3)および酸化カルシウム(CaO)を含み、
前記第2成分が酸化鉄(Fe203)を含み、
前記第1成分対前記第2成分の重量比が75:25以上、100:0未満である、請求項1に記載の多機能性粉末。 - 前記第1成分の全重量100重量%中の酸化ケイ素および酸化アルミニウムの総重量が80重量%以上である、請求項8に記載の多機能性粉末。
- 多機能性粉末またはその加工物を含む機能材;および樹脂または粘度を含む基材を含み、
保管対象収容部および保管対象保護部を含み、
前記多機能性粉末が酸化ケイ素(SiO2)、酸化アルミニウム(Al2O3)、酸化カルシウム(CaO)、酸化マグネシウム(MgO)およびこれらの組み合わせからなる群から選択された一つを含む第1成分;および
酸化鉄(Fe2O3)、酸化カリウム(K2O)、酸化ナトリウム(Na2O)、酸化ストロンチウム(SrO)、三酸化硫黄(SO3)、酸化ホウ素(B2O3)、酸マンガン(MnO)、二酸化チタン(TIO2)およびこれらの組み合わせからなる群から選択された少なくとも一つを含む第2成分;を含み、
37℃で5μmないし20μm波長領域の遠赤外線放射率が0.5%ないし5%であり、
下記式1による有害ガス脱臭均衡指数(Harmful gas deodorization balance index)が0.8ないし2.0である、
多機能性保管物品:
[式1]
{(Cai-Caf)/Cai}/{(Cfi-Cff)/Cfi}
前記式1において、前記Caiは23±5℃の温度および45±10%の相対湿度条件下で2L容積の密閉空間内に100ppm容積%のアンモニアガスを注入した後の初期ガス濃度値であり、前記Cafは前期密閉空間内に前記多機能性粉末1.0gを配置し、120分経過した後のアンモニアガス濃度値であり、前記Cfiは23±5℃の温度および45±10%の相対湿度条件下で2L容積の密閉空間内に100ppm容積%のホルムアルデヒドガスを注入した後の初期ガス濃度値であり、前記Cffは前記密閉空間内に前記多機能性粉末1.0gを配置し、120分経過した後のホルムアルデヒドガス濃度値である。
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