JP5875622B2 - 混和性が増大した複合炭素素材及びその連続的な製造方法、並びにその装置 - Google Patents
混和性が増大した複合炭素素材及びその連続的な製造方法、並びにその装置 Download PDFInfo
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82B—NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
- B82B1/00—Nanostructures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82B—NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
- B82B3/00—Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
- B82B3/0009—Forming specific nanostructures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/168—After-treatment
- C01B32/174—Derivatisation; Solubilisation; Dispersion in solvents
-
- 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
- C01B2202/02—Single-walled nanotubes
-
- 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
- C01B2202/06—Multi-walled nanotubes
-
- 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
- C01B2202/20—Nanotubes characterized by their properties
- C01B2202/28—Solid content in solvents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Description
1×102Ω/□≦Rp≦1×108Ω/□
(前記Rpは、前記炭素ナノチューブ複合素材が4重量%含まれたポリエチレン樹脂の表面抵抗である。)
a)炭素ナノチューブ、炭素ナノチューブ以外の1種以上の炭素化合物及び分散媒を含む混合物を1乃至400atmの圧力で予熱槽に注入して予熱する段階と、
b)前記予熱された混合物を50乃至400atmの亜臨界または超臨界条件において処理する段階と、
c)前記b)段階の生成物を0乃至100℃に冷却及び1乃至10atmに減圧する段階と、
d)前記冷却/減圧された生成物を回収する段階と、
を含む炭素ナノチューブ複合素材製造方法を提供する。
1対1に混合した多重壁の炭素ナノチューブ(ハンファナノテク社製MWCNT)及びカーボンブラック(アメリカCabot社製Carbon-black)混合物を一般の電動ミキサー(Electric-mixer;SHINIL社製ELECTRIC MIXER、SFM−1500NM)を利用して1分間分散させた後、ホッパーに直接投入したことを除いて、実施例5と同様に実施した。
1対1に混合した多重壁の炭素ナノチューブ(ハンファナノテク社製MWCNT)及びカーボンファイバー(日本東レ社製carbon-fiber)複合炭素素材の原料を一般の電動ミキサー(Electric-mixer;SHINIL社製ELECTRIC MIXER、SFM−1500NM)を利用して1分間分散させた後、ホッパーに直接投入したことを除いて、実施例5と同様に実施した。
1.走査型電子顕微鏡(Scanning Electron Microscope;SEM)観察
走査型電子顕微鏡は、Hitachi社製S4800モデルであり、実施例1及び比較例1によって製造された炭素ナノチューブ複合素材を水に分散させ、ガラス上に落としてから完全に乾燥させた後、白金でメッキした後測定した。
透過型電子顕微鏡は、JEOL社のJEM−2100F(HR)モデルであり、試料は、ホーリックタイプのグリッドの上で測定した。下記図6aは、前記実施例3によって製造された炭素ナノチューブ複合素材を観察したものであって、前記実施例3で多重壁の炭素ナノチューブとカーボンブラックの混合物が亜臨界酸化過程を経りながら混和性が向上し、二つの炭素素材が均一に分散していることを示す。下記図6bは、比較例1の混合物を一般のホモミキサー(homo-mixer;SHINIL社製ELECTRIC MIXER、SFM−1500NM)を利用して1分間分散させた後、透過型電子顕微鏡で観察した写真である。下記図6bは、下記図6aと比較して二つの炭素素材が混和されず、ほとんど独立的に存在することを確認することができる。
実施例5、6、7と、比較例1、2の表面抵抗は、三菱社製Loresta GP(MCP−T600)を用いて、JIG K 7194/ASTM D991によって測定し、その結果を下記表1に示した。
11 循環ポンプ
12 混合物高圧ポンプ
13 酸化剤高圧注入ポンプ
14 熱交換器
15 冷却装置
16 圧力調節装置
110 予熱槽
130 反応槽
150 冷却/減圧槽
170 貯蔵槽
210 濾過槽
211 濾過液
213 亜臨界または超臨界処理及び濾過後の濾過生成物
230 濾過槽
231 濾過液
233 亜臨界または超臨界処理及び濾過後の濾過生成物
300 濾過液貯蔵槽
Claims (7)
- a)炭素ナノチューブ、炭素ナノチューブ以外のカーボンブラック、炭素繊維及びこれらの混合物からなる群より選ばれる炭素化合物、並びに分散媒を含む混合物を1乃至400atmの圧力で予熱槽に注入して予熱する段階と、
b)前記予熱された混合物及び酸化剤を50乃至400atmの亜臨界において処理する段階と、
c)前記b)段階の生成物を0乃至100℃に冷却及び1乃至10atmに減圧する段階と、
d)前記冷却及び減圧された生成物を回収する段階と、
を含む炭素ナノチューブ複合素材の製造方法。 - 亜臨界処理の際の温度が、50乃至380℃である請求項1に記載の炭素ナノチューブ複合素材の製造方法。
- 混合物が、炭素ナノチューブ及び炭素ナノチューブ以外の炭素化合物を0.0001乃至30重量%含む請求項1又は2に記載の炭素ナノチューブ複合素材の製造方法。
- 分散媒が、水、脂肪族アルコール、二酸化炭素及びこれらの混合物からなる群から選ばれることを特徴とする請求項1〜3のいずれかに記載の炭素ナノチューブ複合素材の製造方法。
- 酸化剤が、酸素、空気、オゾン、硝酸、過酸化水素、及びこれらの混合物から選ばれる請求項1〜4のいずれかに記載の炭素ナノチューブ複合素材の製造方法。
- 酸化剤が、炭素ナノチューブ及び炭素化合物100重量部に対して0.00001乃至30重量部含まれる請求項1〜5のいずれかに記載の炭素ナノチューブ複合素材の製造方法。
- c)段階の冷却及び減圧後に生成物を高圧漉過する段階をさらに含む請求項1〜6のいずれかに記載の炭素ナノチューブ複合素材の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2009-0059129 | 2009-06-30 | ||
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JP2012532085A (ja) | 2012-12-13 |
TW201105576A (en) | 2011-02-16 |
KR20110001557A (ko) | 2011-01-06 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |