CA2453424A1 - Polyvinylidene fluoride composites and methods for preparing same - Google Patents

Polyvinylidene fluoride composites and methods for preparing same Download PDF

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Publication number
CA2453424A1
CA2453424A1 CA002453424A CA2453424A CA2453424A1 CA 2453424 A1 CA2453424 A1 CA 2453424A1 CA 002453424 A CA002453424 A CA 002453424A CA 2453424 A CA2453424 A CA 2453424A CA 2453424 A1 CA2453424 A1 CA 2453424A1
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Prior art keywords
composite
nanotubes
weight
amount
monomer
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Granted
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CA002453424A
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French (fr)
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CA2453424C (en
Inventor
Chunming Niu
Lein Ngaw
Alan Fischer
Robert Hoch
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Hyperion Catalysis International Inc
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Individual
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Priority claimed from US09/903,189 external-priority patent/US6783702B2/en
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Publication of CA2453424A1 publication Critical patent/CA2453424A1/en
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Publication of CA2453424C publication Critical patent/CA2453424C/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/20Compounding polymers with additives, e.g. colouring
    • C08J3/205Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
    • C08J3/21Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
    • C08J3/212Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase and solid additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00Use of ingredients characterised by shape
    • C08K7/22Expanded, porous or hollow particles
    • C08K7/24Expanded, porous or hollow particles inorganic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20Conductive material dispersed in non-conductive organic material
    • H01B1/24Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/16Homopolymers or copolymers of vinylidene fluoride
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00Nanotechnology
    • Y10S977/70Nanostructure
    • Y10S977/734Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
    • Y10S977/742Carbon nanotubes, CNTs
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S977/00Nanotechnology
    • Y10S977/70Nanostructure
    • Y10S977/788Of specified organic or carbon-based composition

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Conductive Materials (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite. The composites are prepared by dissolving the polymer in a first solvent to form a polymer solution and then adding the carbon nanotubes into the solution. The solution is mixed using an energy source such as a sonicator or a Waring blender. A precipitating component is added to precipitate out a composite comprising the polymer and the nanotubes. The composite is isolated by filtering the solution and drying the composite. The composites are also prepared by mixing or dispersing carbon nanotubes in polymer emulsion using an energy source such as a Waring blender. The liquid in the mixture is then evaporated to obtain the composite comprising the polymer and the nanotubes.

Claims (62)

1. A polymer composite comprising:
polyvinylidene fluoride; and carbon nanotubes in an amount from about 0.01 to 30% by weight of said composite, wherein said nanotubes have a diameter less than about 100 nanometers.
2. The composite of claim 1, wherein the nanotubes comprise carbon fibrils having:
a substantially constant diameter;
a length greater than about 5 times the diameter;
an ordered outer region of catalytically grown, multiple, substantially continuous layers of ordered carbon atoms having an outside diameter between about
3.5 and 70 nanometers; and a distinct inner core region, each of the layers and the core being disposed substantially concentrically about the cylindrical axis of the fibrils, said fibrils being substantially free of pyrolytically deposited thermal carbon.
3. The composite of claim 1, wherein the nanotubes comprise singled walled carbon fibrils.
4. The composite of claim 1, wherein the nanotubes are present in an amount between about 0.5 to 20% by weight of the composite.
5. The composite of claim 1, wherein the nanotubes are present in an amount between about 1 to 15% by weight of the composite.
6. The composite of claim 1, wherein the nanotubes are present in an amount between about 13 to 20% by weight of the composite.
7. The composite of claim 1, wherein said composite has a bulk resistivity of less than about 10 ohm-cm.
8. The composite of claim 1, wherein said composite has a bulk resistivity of less than about 1 ohm-cm.
9. The composite of claim 1, wherein said composite has a bulk resistivity of between about 0.02 and 0.08 ohm-cm.
10. The composite of claim 1, wherein said composite has a bulk resistivity within the bulk resistivity range of a pure carbon nanotube mat.
11. The composite of claim 1, further comprising a filler.
12. The composite of claim 12, wherein said filler is graphite.
13. A polymer composite comprising:
a copolymer of vinylidene fluoride and another monomer, and carbon nanotubes in an amount from about 0.01 to 30% by weight of said composite, wherein said nanotubes have a diameter less than about 100 nanometers.
14. The composite of claim 13, wherein said monomer is selected from the group consisting of hexafluoropropylene, polystyrene, polypropylene, chlorotrifluoroethylene, tetrafluoroethylene, terpolymers and olefins.
15. The composite of claim 13, wherein said monomer is present in an amount less than about 90% by weight of said copolymer.
16. The composite of claim 15, wherein said monomer is present in an amount between about 1 to 70 % by weight of said copolymer.
17. The composite of claim 16, wherein said monomer is present in an amount between about 10 to 50% by weight of said copolymer.
18. The composite of claim 13, wherein the nanotubes comprise carbon fibrils having:
a substantially constant diameter;
a length greater than about 5 times the diameter;
an ordered outer region of catalytically grown, multiple, substantially continuous layers of ordered carbon atoms having an outside diameter between about 3.5 and 70 nanometers; and a distinct inner core region, each of the layers and the core being disposed substantially concentrically about the cylindrical axis of the fibrils, said fibrils being substantially free of pyrolytically deposited thermal carbon.
19. The composite of claim 13, wherein the nanotubes comprise singled walled carbon fibrils.
20. The composite of claim 13, wherein the nanotubes are present in an amount between about 0.5 to 20% by weight of the composite.
21. The composite of claim 13, wherein the nanotubes are present in an amount between about 1 to 15% by weight of the composite.
22. The composite of claim 13, wherein the nanotubes are present in an amount between about 13 to 20% by weight of the composite.
23. The composite of claim 13, wherein said composite has a bulk resistivity of less than about 10 ohm-cm.
24. The composite of claim 13, wherein said composite has a bulk resistivity of less than about 1 ohm-cm.
25. The composite of claim 13, wherein said composite has a bulk resistivity of between about 0.02 and 0.08 ohm-cm.
26. The composite of claim 13, wherein said composite has a bulk resistivity within the bulk resistivity range of a pure carbon nanotube mat.
27. The composite of claim 13, further comprising a filler.
28. The composite of claim 27, wherein said filler is graphite.
29. A polymer composite comprising:
a compound comprising a mixture of at least two substances selected from the group consisting of polyvinylidene fluoride, copolymer of vinylidene fluoride and another monomer, and another polymer; and carbon nanotubes in an amount from about 0.01 to 30% by weight of said composite, wherein said nanotubes have a diameter less than about 100 nanometers.
30. The composite of claim 29, wherein said monomer is selected from the group consisting of hexafluoropropylene, polystyrene, polypropylene, chlorotrifluoroethylene, tetrafluoroethylene, terpolymers and olefins.
31. The composite of claim 29, wherein said monomer is present in an amount less than about 90% by weight of said copolymer.
32. The composite of claim 29, wherein said monomer is present in an amount between about 1 to 70 % by weight of said copolymer.
33. The composite of claim 29, wherein said monomer is present in an amount between about 10 to 50% by weight of said copolymer.
34. The composite of claim 29, wherein the nanotubes comprise carbon fibrils having:
a substantially constant diameter;
a length greater than about 5 times the diameter;
an ordered outer region of catalytically grown, multiple, substantially continuous layers of ordered carbon atoms having an outside diameter between about 3.5 and 70 nanometers; and a distinct inner core region, each of the layers and the core being disposed substantially concentrically about the cylindrical axis of the fibrils, said fibrils being substantially free of pyrolytically deposited thermal carbon.
35. The composite of claim 29, wherein the nanotubes comprise singled walled carbon fibrils.
36. The composite of claim 29, wherein the nanotubes are present in an amount between about 0.5 to 20% by weight of the composite.
37. The composite of claim 29, wherein the nanotubes are present in an amount between about 1 to 15% by weight of the composite.
38. The composite of claim 29, wherein the nanotubes are present in an amount between about 13 to 20% by weight of the composite.
39. The composite of claim 29, wherein said composite has a bulk resistivity of less than about 10 ohm-cm.
40. The composite of claim 29, wherein said composite has a bulk resistivity of less than about 1 ohm-cm.
41. The composite of claim 29, wherein said composite has a bulk resistivity of between about 0.02 and 0.08 ohm-cm.
42. The composite of claim 29, wherein said composite has a bulk resistivity within the bulls resistivity range of a pure carbon nanotube mat.
43. The composite of claim 29, further comprising a filler.
44. The composite of claim 43, wherein said filler is graphite.
45. A method for preparing an electrically conductive composite comprising the steps of:
(a) dissolving a polymer selected from the group consisting of polyvinylidene fluoride and copolymer of vinylidene fluoride and another monomer in a solvent to form a solution;
(b) dispersing nanotubes in said solution; and (c) adding a precipitating component into said solution to precipitate a composite comprising said polymer and said nanotubes.
46. The method of claim 42, further comprising the step of filtering said solution to isolate said composite.
47. The method of claim 42, further comprising the step of drying said composite.
48. The method of claim 42, wherein said dispersing step is performed with a sonicator or an ultrasonic sonifier.
49. The method of claim 42, wherein said solvent is acetone.
50. The method of claim 42, wherein said solvent is selected from the group consisting of tetrahydrofuran, methyl ethyl ketone, dimethyl formamide, dimethyl acetamide, tetramethyl urea, dimethyl sulfoxide, trimethyl phosphate, pyrrolidone, butyrolacetone, isophorone, and carbitor acetate.
51. The method of claim 42, wherein said precipitating component is water.
52. The method of claim 42, wherein said monomer is selected from the group consisting of hexafluoropropylene, polystyrene, polypropylene, chlorotrifluoroethylene, tetrafluoroethylene, terpolymers or olefins.
53. An electrically conductive composite made by the method of claim 42.
54. A method for malting bipolar plates comprising the steps of:
(a) dissolving a polymer selected from the group consisting of polyvinylidene fluoride and copolymer of vinylidene fluoride and another monomer in a solvent to form a solution;
(b) dispersing said nanotubes in said solution;
(c) adding a precipitating component into said solution to precipitate out a composite comprising said polymer and said nanotubes;
(d) isolating said composite;
(e) extruding said composite; and (f) engraving one or more flow channels on said composite.
55. The method of claim 54, wherein said monomer is selected from the group consisting of hexafluoropropylene, polystyrene, polypropylene, chlorotrifluoroethylene, tetrafluoroethylene, terpolymers or olefins.
56. A method for preparing an electrically conductive composite comprising the steps of:
(a) mixing carbon nanotubes with a polymer emulsion, said emulsion comprising a liquid and a polymer selected from the group consisting of polyvinylidene fluoride and copolymer of vinylidene fluoride and another monomer;
and (b) removing said liquid to form a composite comprising said nanotubes and said polymer.
57. The method of claim 56, wherein the liquid is water.
58. The method of claim 56, wherein said removing step is performed by evaporating said liquid.
59. The method of claim 56, wherein said mixing step is performed with a high shear blender.
60. The method of claim 56, wherein said mixing step is performed with a blaring blender.
61. The method of claim 56, wherein said monomer is selected from the group consisting of hexafluoropropylene, polystyrene, polypropylene, chlorotrifluoroethylene, tetrafluoroethylene, terpolymers or olefins.
62. An electrically conductive composite made by the method of claim 56.
CA2453424A 2001-07-11 2002-07-10 Polyvinylidene fluoride composites and methods for preparing same Expired - Fee Related CA2453424C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US09/903,189 2001-07-11
US09/903,189 US6783702B2 (en) 2001-07-11 2001-07-11 Polyvinylidene fluoride composites and methods for preparing same
US09/988,973 US6746627B2 (en) 2001-07-11 2001-11-20 Methods for preparing polyvinylidene fluoride composites
US09/988,973 2001-11-20
PCT/US2002/021754 WO2003007314A1 (en) 2001-07-11 2002-07-10 Polyvinylidene fluoride composites and methods for preparing same

Publications (2)

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CA2453424A1 true CA2453424A1 (en) 2003-01-23
CA2453424C CA2453424C (en) 2011-01-04

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CA2453424A Expired - Fee Related CA2453424C (en) 2001-07-11 2002-07-10 Polyvinylidene fluoride composites and methods for preparing same

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EP (1) EP1415309A4 (en)
JP (1) JP2005500409A (en)
KR (1) KR100912147B1 (en)
CA (1) CA2453424C (en)
MX (1) MXPA04000240A (en)
WO (1) WO2003007314A1 (en)

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JP4489558B2 (en) 2004-10-25 2010-06-23 三桜工業株式会社 Multi-layer resin tube
JP5228486B2 (en) 2005-06-24 2013-07-03 ダイキン工業株式会社 Polymer composite material
US7732029B1 (en) 2006-12-22 2010-06-08 Xerox Corporation Compositions of carbon nanotubes
JP2008163081A (en) * 2006-12-27 2008-07-17 Fujifilm Corp Laser-decomposable resin composition and pattern-forming material and laser-engravable flexographic printing plate precursor using the same
US9041228B2 (en) * 2008-12-23 2015-05-26 Micron Technology, Inc. Molding compound including a carbon nano-tube dispersion
JP2010155953A (en) * 2009-01-05 2010-07-15 National Institute Of Advanced Industrial Science & Technology Structure composed of filler and non-compatible resin or elastomer, method for producing the same, and use of the same
KR101281626B1 (en) 2010-05-28 2013-07-04 부산대학교 산학협력단 Method of manufacturing polymer/carbon nanotube composite, Method of manufacturing polymer/carbon nanotube composite thin film using the same, Polymer/carbon nanotube composite using the method, and Polymer/carbon nanotube composite thin film using the method
US9463977B2 (en) 2012-07-31 2016-10-11 Raytheon Company Sacrificial limiter filter
US10685763B2 (en) * 2016-01-19 2020-06-16 Xerox Corporation Conductive polymer composite
EP3881379A1 (en) 2018-11-12 2021-09-22 Fischer Eco Solutions GmbH Method for bonding two plates together for a fuel cell, especially gluing bipolar plates in a fuel cell
KR102430316B1 (en) * 2020-08-20 2022-08-10 최재훈 Fluororesin tube with high thermal conductivity and low gas permeability
KR20220055334A (en) * 2020-10-26 2022-05-03 주식회사 엘지화학 Method for preparation of poly(butylene adipate-co-terephthalate)-carbon nanotube composite

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US6403696B1 (en) * 1986-06-06 2002-06-11 Hyperion Catalysis International, Inc. Fibril-filled elastomer compositions
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CN1189512C (en) * 2003-02-28 2005-02-16 清华大学 High-dielectric composite material containing carbon nanotube and its prepn process

Also Published As

Publication number Publication date
MXPA04000240A (en) 2004-05-04
WO2003007314A1 (en) 2003-01-23
KR100912147B1 (en) 2009-08-14
JP2005500409A (en) 2005-01-06
EP1415309A4 (en) 2006-06-21
KR20040030044A (en) 2004-04-08
CA2453424C (en) 2011-01-04
EP1415309A1 (en) 2004-05-06

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