In this research, three different carbon fillers (Thermocarb TC-300 synthetic graphite, Ketjenblack EC-600 JD carbon black and Hyperion Catalysis International’s FIBRIL TM carbon nanotubes) are added to a polypropylene matrix to produce single and multiple filler composites with filler concentrations of up to 80 wt% synthetic graphite, 15 wt% carbon black, and 15 wt% carbon nanotubes. The through-plane and in-plane thermal conductivities are measured for these formulations and compared favorably with predictions from the Nielsen thermal conductivity model. Good results are obtained from an empirical in-plane thermal conductivity model for all single filler composites and one multiple filler composite.
Finan JMThermally Conductive Thermoplastic Materials. Proceedings of the Society of Plastics Engineers Annual Technical Conference , New York, NY, 2-6 May, 1999, pp. 1547-1550.
2.
Agari Y. and Uno T.Thermal Conductivity of Polymer Filled with Carbon Materials: Effect of Conductive Particle Chains on Thermal Conductivity. Journal of Applied Polymer Science1985; 30: 2225-2235.
3.
Bigg DMConductive Polymeric Compositions. Polymer Engineering and Science1977; 17(12): 842-847.
Bigg DMEffect of Compounding on the Properties of Short Fiber Reinforced Injection Moldable Thermoplastic Composites. Polymer Composites1985; 6(1): 20-28.
6.
Nagata K., Iwabuki H. and Nigo H.Effect of Particle Size of Graphites on Electrical Conductivity of Graphite/ Polymer Composite. Composite Interfaces1999 ; 6(5): 483-495.
7.
Demain, A.Thermal Conductivity of Polymer-chopped Carbon Fibre Composites, PhD Dissertation , Universite Catholique de Louvain, Louvain-la-Neuve, Belgium, 1994.
8.
King JA, Tucker KW, Meyers JD, Weber EH, Clingerman ML and Ambrosius KRFactorial Design Approach Applied to Electrically and Thermally Conductive Nylon 6,6. Polymer Composites2001; 22(1): 142-154.
9.
Murthy MVPermanent EMI Shielding of Plastics using Copper Fibers. Proceedings of the Society of Plastics Engineers Annual Technical Conference , San Francisco, CA, 1-5 May, 1994, pp. 1396-1400.
10.
Simon RMThermally and Electrically Conductive Flake Filled Plastics. Polymer News1985; 11: 102-108.
11.
Mapleston P.Conductive Composites Get a Growth Boost from Metallic Fibers. Modern Plastics1992; 69: 80-83.
12.
Donnet JB, Bansal RC and Wang MJCarbon Black, 2nd edn. New York: Marcel Dekker, Inc., 1993.
13.
Huang JCCarbon Black Filled Conducting Polymers and Polymer Blends. Advances in Polymer Technology2002; 21: 299-313.
14.
Bigg DMMechanical, Thermal, and Electrical Properties of Metal Fiber-filled Polymer Composites. Polymer Engineering and Science1979; 19(16): 1188-1192.
15.
Wilson MS and Busick DNComposite Bipolar Plate for Electrochemical Cells, U.S. Patent Number6,248,467, 2001.
16.
Loutfy RO and Hecht M.Low Cost Molded Plastic Fuel Cell Separator Plate with Conductive Elements , U.S. Patent Number6,511,766, 2003.
17.
Braun, J.C., Zabriskie, J.E. Jr. , Neutzler, J.K., Fuchs, M. and Gustafson, R.C.Fuel Cell Collector Plate and Method of Fabrication, U.S. Patent Number 6,180,275, 2001.
18.
Mehta V. and Cooper JSReview and Analysis of PEM Fuel Cell Design and Manufacturing. Journal of Power Sources2003; 114: 32-53.
19.
Migri F., Huneault MA and Champagne MFElectrically Conductive Thermoplastic Blends for Injection and Compression Molding of Bipolar Plates in the Fuel Cell Application. Polymer Engineering Science2004; 44: 1755-1765.
20.
Huang J., Baird DG and McGrath JEDevelopment of Fuel Cell Bipolar Plates from Graphite Filled Wet-lay Thermoplastic Composite Materials. Journal of Power Sources2005; 150: 110-119.
21.
Wolf H. and Willert-Porada M.Electrically Conductive LCP-Carbon Composite with Low Carbon Content for Bipolar Plate Application in Polymer Electrolyte Membrane Fuel Cell. Journal of Power Sources2006; 153: 41-46.
22.
Robberg K. and Trapp V.Chapter 26: Graphite based Bipolar Plates. In: Vielstick W, Gasteiger HA and Lamm A (eds) Handbook of Fuel Cells-Fundamentals, Technology and Applications. Vol. 3: Fuel Cell Technology and Applications. New York: John Wiley & Sons, Ltd., 2003, pp.308-314.
23.
Hermann A., Chaudhur T. and Spagnol P.Bipolar Plates for PEM Fuel Cells: A Review. International Journal of Hydrogen Energy2005; 30: 1297-1302.
24.
Wang Y.Conductive Thermoplastic Composite Blends for Flow Field Plates for Use in Polymer Electrolyte Membrane Fuel Cells (PEMFC), MS Thesis, University of Waterloo, Waterloo, Ontario, Canada, 2006.
25.
The Dow Chemical Company.The Dow Chemical Company Polypropylene Resin Produce Literature, Form 167-00162-0905X , Midland, MI, 2005.
26.
Akzo Nobel .Akzo Nobel Electrically Conductive Ketjenblack Product Literature, 300. S. Riverside Plaza, Chicago, IL, 1999.
27.
King JA, Morrison FA, Keith JM, Miller MG, Smith RC, Cruz M., Neuhalfen AM and Barton RLElectrical Conductivity and Rheology of Carbon-filled Liquid Crystal Polymer Composites. Journal of Applied Polymer Science2006; 101(4): 2680-2688.
ASTM Standard Test Method for Thermal Diffusivity by the Flash Method. Philadelphia: ASTM Standard E1461-07, American Society for Testing and Materials, 2008.
32.
Parker WJ, Jenkins RJ, Butler CP and Abbott GLFlash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity. Journal of Applied Physics1963 ; 32(9): 1679-1684.
33.
Cowan RDPulse Method of Measuring Thermal Diffusivity at High Temperatures. Journal of Applied Physics1963; 34(4): 926-927.
34.
Clark LM and Taylor RERadiation Loss in the Flash Method for Thermal Diffusivity. Journal of Applied Physics1975; 46(2): 714-719.
35.
Koski JAImproved Data Reduction Methods for Laser Pulse Diffusivity Determination with the Use of Minicomputers. In: Sengers JV (ed.) Proceedings of the Eighth Symposium on Thermophysical Properties. Vol. II, New York : American Society of Mechanical Engineers, 1981.
36.
Weber EH, Clingerman ML and King JAThermally Conductive Nylon 6,6 and Polycarbonate Based Resins. II. Modeling. Journal of Applied Polymer Science2003; 88(1): 123-130.
37.
Weber EHDevelopment and Modeling of Thermally Conductive Polymer/Carbon Composites, PhD Dissertation, Michigan Technological University, Houghton, MI, 2001.
38.
Nielsen L.The Thermal and Electrical Conductivity of Two-phase Systems. Industrial and Engineering Chemistry Fundamentals1974; 13(1): 17-20.
39.
McGee S. and McCullough RLCombining Rules for Predicting the Thermoplastic Properties of Particulate Filled Polymers, Polyblends, and Foams. Polymer Composites1981; 2(4): 149-161.
40.
Heiser JA, King JA, Konell JP, Miskioglu I. and Sutter LLTensile and Impact Properties of Carbon Filled Nylon 6,6 Based Resins. Journal of Applied Polymer Science2004; 91(5): 2881-2893.
41.
Konell JP, King JA and Miskioglu I.Synergistic Effects of Carbon Fillers on Tensile and Impact Properties in Nylon 6,6 and Polycarbonate Based Resins. Polymer Composites2004; 25(2): 172-185.
42.
King JA, Barton RL, Hauser RA and Keith JMSynergistic Effects of Carbon Fillers in Electrically and Thermally Conductive Liquid Crystal Polymer Based Resins. Polymer Composites2008; 29: 421-428.
43.
Keith JM, King JA, Lenhart KM and Zimny B.Thermal Conductivity Models for Carbon/Liquid Crystal Polymer Composites. Journal of Appied Polymer Science2007; 105(6): 3309-3316.
44.
Hauser RASynergistic Effects and Modeling of Thermally Conductive Resins for Fuel Cell Bipolar Plate Applications, PhD Dissertation, Michigan Technological University, Houghton, MI, 2008.
45.
Hone J., Whitney M., Piskoti C. and Zettl A.Thermal Conductivity of Single-walled Carbon Nanotubes. Physical Review B1999; 59(4): R2514-R2516.
46.
Yi W., Lu L., Dian-lin Z., Pan ZW and Xie SSLinear Specific Heat of Carbon Nanotubes. Physical Review B 1999; 59(14): R9015-R9018.
47.
Hone J., Llaguno MC, Nemes NM, Johnson AT, Fischer JE, Walters DA, Cassavant MJ, Schmidt J. and Smalley REElectrical and Thermal Transport Properties of Magnetically Aligned Single Wall Carbon Nanotube Films. Applied Physics Letters2007; 77(5): 666-668.
48.
Kim P., Shi L., Majumdar A. and McEuen PLThermal Transport Measurements of Individual Multiwalled Nanotubes. Physical Review Letters2001; 87(21): 215502-1-215502-4.
49.
Yang DJ, Zhang Q., Chen G., Yoon SF, Ahn J., Wang SG, Zhou Q., Wang Q. and Li JQThermal Conductivity of Multiwalled Carbon Nanotubes. Physical Review B 2002; 66(16): 165440-1-165440-6.
50.
Larminie J. and Dicks A.Proton Exchange MembraneFuel Cells.Fuel Cell SystemsExplained, 2nd edn. West Sussex , England: John Wiley & Sons, 2003.
51.
King JA, Tucker KW, Vogt BD, Weber EH and Quan C.Electrically and Thermally Conductive Nylon 6,6. Polymer Composites1999; 20(5): 643-654.
52.
Miller MGDevelopment and Modeling of Thermally Conductive Resins for Fuel Cell Bipolar Plate Applications, PhD Dissertation, Michigan Technological University, Houghton, MI, 2006.
53.
Miller MG, Keith JM, King JA, Edwards BJ, Klinkenberg N. and Schiraldi DAMeasuring Thermal Conductivities of Anisotropic Synthetic Graphite-Liquid Crystal Polymer Composites. Polymer Composites2006; 27(4): 388-394.
