JP2022508630A - カーボンナノチューブを含むヤーンの製造方法、これから製造されたヤーン - Google Patents
カーボンナノチューブを含むヤーンの製造方法、これから製造されたヤーン Download PDFInfo
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- JP2022508630A JP2022508630A JP2021544078A JP2021544078A JP2022508630A JP 2022508630 A JP2022508630 A JP 2022508630A JP 2021544078 A JP2021544078 A JP 2021544078A JP 2021544078 A JP2021544078 A JP 2021544078A JP 2022508630 A JP2022508630 A JP 2022508630A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/08—Aligned nanotubes
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
- D10B2101/122—Nanocarbons
Abstract
Description
Claims (19)
- 加熱手段を具備する反応チャンバー内に炭素源(carbon source)および触媒を含む原料物質を投入する段階;
前記加熱手段による熱エネルギーで前記反応チャンバーの加熱部内で前記炭素源を複数のカーボンナノチューブに変換させる段階;および
前記複数のカーボンナノチューブを鉛直方向に成長させることによって、カーボンナノチューブの間の相互作用によってヤーン(yarn)を形成する段階を含み、
下記のパラメータMが150℃・m・mg/sec~1,800℃・m・mg/secに維持されるように制御するヤーンの製造方法:
前記式において、Tは加熱手段の作動温度(℃)、Lは加熱部の長さ(m)、Fは原料物質の供給速度(mg/sec)である。 - 前記パラメータMが160℃・m・mg/sec~1,400℃・m・mg/secに維持されるように制御する、請求項1に記載のヤーンの製造方法。
- 前記炭素源に対する触媒の質量比(=触媒の質量/炭素源の質量)が0.01~0.2である、請求項1に記載のヤーンの製造方法。
- 前記ヤーンは偏光ラマン比(polarized raman ratio)が5~10である、請求項1に記載のヤーンの製造方法。
- 前記ヤーンは破断強度が13cN以上である、請求項1に記載のヤーンの製造方法。
- 前記加熱手段の作動温度は550℃~2,500℃であり、
前記加熱部の長さは0.01m~10mであり、
前記原料物質の供給速度は0.05mg/sec~10mg/secである、請求項1に記載のヤーンの製造方法。 - 前記加熱手段の作動温度は1,050℃~1,500℃であり、
前記加熱部の長さは0.1m~2mであり、
前記原料物質の供給速度は0.1mg/sec~3mg/secである、請求項6に記載のヤーンの製造方法。 - 前記反応チャンバーは、
原料物質が投入されるようにその上端に形成されている流入部;
前記流入部から下向きに延長されており、その内面および/または外面に前記加熱手段が備えられており、前記作動温度が造成され前記炭素源が複数のカーボンナノチューブに変換される加熱部;
前記加熱部から下向きに延長されており、複数のカーボンナノチューブが集合してπ-π相互作用によってヤーンを形成する集合部;および
前記集合部から下向きに延長されており、前記カーボンナノチューブが集合したヤーンが排出される排出部を含む、請求項1に記載のヤーンの製造方法。 - 変換されるおよび/または変換が完了した複数のカーボンナノチューブの下端部が鉛直方向を向くよう整列するために、前記集合部および前記排出部のうち少なくとも一つの外側および/または内側で磁性を印加する、請求項8に記載のヤーンの製造方法。
- 前記炭素源はメタノール、エタノール、イソプロピルアルコール、ブタノール、ペンタノール、セチルアルコール、エチレングリコール、プロピレングリコール、グリセロール、エリスリトール、キシリトール、ソルビトール、ボレミトール、アリルアルコール、ゼラニオール、プロパルギルアルコール、イノシトール、メントール、メタン、ヘキサン、エチレン、アセチレン、メチルアセチレンおよびビニルアセチレンから選択される少なくとも一つを含む、請求項1に記載のヤーンの製造方法。
- 前記触媒は1種以上のメタロセンを含み、
前記メタロセンは鉄、ニッケル、コバルト、白金、ルテニウム、モリブデンまたはバナジウムの化合物である、請求項1に記載のヤーンの製造方法。 - 前記メタロセンはフェロセンである、請求項11に記載のヤーンの製造方法。
- 前記原料物質は炭素源100重量部に対して0.01重量部~5重量部の触媒活性剤をさらに含む、請求項1に記載のヤーンの製造方法。
- 前記原料物質を投入する段階で、運搬ガスを前記原料物質と共に反応チャンバー内に投入する、請求項1に記載のヤーンの製造方法。
- 前記運搬ガスは、窒素ガスおよびアルゴンガスのうち少なくとも一つおよび水素ガスを含み、
前記水素ガスは前記運搬ガスの総体積を基準として、0体積%超過~90体積%以下で含まれる、請求項14に記載のヤーンの製造方法。 - 前記運搬ガスは1mg/sec~200mg/secの供給速度で投入される、請求項14に記載のヤーンの製造方法。
- 前記カーボンナノチューブに変換させる段階は、前記触媒上で前記炭素源が黒鉛化および/または炭化する炭素再配列が進行されて、前記触媒上から前記カーボンナノチューブが鉛直方向に成長する段階である、請求項1に記載のヤーンの製造方法。
- 前記ヤーンを収得する段階は、反応チャンバーの外部に排出されたヤーンを溶媒に浸漬させる段階、および浸漬されたヤーンを円筒形ローラまたはプレートを用いて巻く段階を含む、請求項1に記載のヤーンの製造方法。
- 請求項1~請求項18に記載されたヤーンの製造方法により製造された、ヤーン。
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