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TEMPERATURE AND GAS SENSING CHARACTERISTICS OF GRAPHITE/POLYMER (PEO) BASED COMPOSITE STRUCTURES

BHARGAVA, SUMEET
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1152821559

Abstract Details

2006, MS, University of Cincinnati, Engineering : Materials Science.
Conductive polymer composites have long been used in sensing applications. Since the demand for such sensors is growing, further research is needed to keep pace and come up with new and improved materials. These materials have percolation structures with sufficient conductor phase dispersed in the polymer insulator matrix. The resistance in these materials can vary with temperature and gas ambience, so as to serve as sensitive sensors, with typically a sharp transition at a particular temperature. This study focused on the use of Poly Ethylene Oxide and graphite flakes. For such plate-like morphologies the conducting paths are formed at low percolation concentrations. The components were blended and hot pressed to pellets. Thermistor and gas sensing data showed sharp change. An inert ceramic additive was used to escalate the thermal stability. Microstructures and other structural features of the samples were observed using Optical microscopy and SEM to establish the structure-property correlation
Dr. Relva Buchanan (Advisor)
83 p.
Engineering, Materials Science
CPC; conductive polymer composites; polymer composites; conductive composites; PEO; temperature sensors; gas sensors; polymer ceramic composite

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Citations

  • BHARGAVA, S. (2006). TEMPERATURE AND GAS SENSING CHARACTERISTICS OF GRAPHITE/POLYMER (PEO) BASED COMPOSITE STRUCTURES [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1152821559

    APA Style (7th edition)

  • BHARGAVA, SUMEET. TEMPERATURE AND GAS SENSING CHARACTERISTICS OF GRAPHITE/POLYMER (PEO) BASED COMPOSITE STRUCTURES. 2006. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1152821559.

    MLA Style (8th edition)

  • BHARGAVA, SUMEET. "TEMPERATURE AND GAS SENSING CHARACTERISTICS OF GRAPHITE/POLYMER (PEO) BASED COMPOSITE STRUCTURES." Master's thesis, University of Cincinnati, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1152821559

    Chicago Manual of Style (17th edition)

ucin1152821559
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© 2006, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.