Berruti, Franco

Giorcelli, Mauro

Khan, Aamer Abbas

Savi, Patrizia

Tagliaferro, Alberto

English

Engineering Conferences International

Engineering Conferences InternationalECI Digital ArchivesBiorefinery I: Chemicals and Materials FromThermo-Chemical Biomass Conversion and RelatedProcessesProceedings2015ELECTRICAL CHARACTERIZATION OFDIFFERENT CARBON BASED POLYMERCOMPOSITESMauro GiorcelliPolitecnico di TorinoAamer Abbas KhanPolitecnicoi di TorinoPatrizia SaviPolitecnico di TorinoFranco BerrutiICFAR - Western UniversityAlberto TagliaferroPolitecnico di TorinoFollow this and additional works at: http://dc.engconfintl.org/biorefinery_IPart of the Chemical Engineering CommonsThis Conference Proceeding is brought to you for free and open access by the Proceedings at ECI Digital Archives. It has been accepted for inclusion inBiorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes by an authorized administrator of ECIDigital Archives. For more information, please contact franco@bepress.com.Recommended CitationMauro Giorcelli, Aamer Abbas Khan, Patrizia Savi, Franco Berruti, and Alberto Tagliaferro, "ELECTRICAL CHARACTERIZATIONOF DIFFERENT CARBON BASED POLYMER COMPOSITES" in "Biorefinery I: Chemicals and Materials From Thermo-Chemical Biomass Conversion and Related Processes", Nicolas Abatzoglou, Université de Sherbrooke, Canada Sascha Kersten,University of Twente, The Netherlands Dietrich Meier, Thünen Institute of Wood Research, Germany Eds, ECI Symposium Series,(2015). http://dc.engconfintl.org/biorefinery_I/10ELECTRICAL CHARACTERIZATION OF DIFFERENT CARBON BASED POLYMER COMPOSITES Mauro Giorcelli, Aamer Abbas Khan, Patrizia Savi, Franco Berruti, Alberto TagliaferroBiorefinery I: Chemicals and Materials from Thermo-Chemical Biomass Conversion and Related Processes1OutlineMotivation and ApplicationBiochar as Carbon FillerComposite preparationMicrowave characterizationResultsComment and comparasion with CNTsConclusions2Motivation and ApplicationCompositeMatrixPolymer Metals CeramicsFillerGlass Carbon Organic Metallic Others3Motivation and ApplicationElectrical & electronicsEnergy & powerAutomotiveAerospace4Biochar as Carbon filler by Chemical decomposition of organic materials in the absence of oxygen Products:- Gases (non-condensable vapors)- Liquids (condensable vapors: bio-oil- Solids (bio-char and ash)li i  5Biochar as Carbon Filler Advantage:Low priceRecicled materialNew opportunities6Composite preparation Pulverize by blade mixer7Composite preparation Fesem characterization (Zeiss supra 40)AsitisPowder8Composite preparation9Mixing procedure Ultra turrax mixer Three roll mills mixerLow quantity material is enough Needs Not less 50 ml of material(Recently acquired)A crucial point to obtain good dispersionComposite preparationComparison between different dispersion technique in case of Carbon Nanotubes (CNTs)10Composite preparation11Microwave characterizationPermettivity measurements12The most common way to describe a system response to anelectro- magnetic wave is through its dielectric constant (alsocalled permittivity)Permittivity is a complex quantity. Its real part describes the abilityto store energy while its imaginary part describes the ability todissipate energyAs electrical conductivity is related to energy dissipation a closecorrelation exists = ’+ i ’’  ௢ =  (f)Microwave characterizations13A Network Analyzer (E8361A) + A commercial dielectric probe (Agilent 85070D)Advantages: Frequency band 200 MHz – 20 GHz Fast response Samples of small dimensionsDrawback: Roughness and flatness of the surface are critical Thick samplesSAMPLEØ = 2.2 cm Sample thickness >  1.5 cmResultsStandard BiocharActivated Biochar (high surface area)Comparison with CNTs14Results (real part)15Results (Conductivity, immaginary part)16  ௢Results (comparison with CNTs)17Real part ConductivityConclusions Low quantities of Biochar fillers have not effect on permittivity as CNTs To obtan effect on permittivity we need to be more than 10 wt.% Activated Biochar (high surface area) have more effect respect to no activatedBiochar In order to have compared values with CNTs we need to arrive around 20 wt.% Further investigation are need in particular to test mechanical properties.18Thank you for your attention19mauro.giorcelli@polito.it

ELECTRICAL CHARACTERIZATION OF DIFFERENT CARBON BASED POLYMER COMPOSITES

https://dc.engconfintl.org/cgi/viewcontent.cgi?article=1010&amp;context=biorefinery_I

ELECTRICAL CHARACTERIZATION OF DIFFERENT CARBON BASED POLYMER COMPOSITES

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