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dc.contributor.authorArroyo, Jesse
dc.contributor.authorRyan, Cecily A.
dc.date.accessioned2019-01-11T18:01:53Z
dc.date.available2019-01-11T18:01:53Z
dc.date.issued2018-12
dc.identifier.citationArroyo, Jesse, and Cecily Ryan. “Incorporation of Carbon Nanofillers Tunes Mechanical and Electrical Percolation in PHBV:PLA Blends.” Polymers 10, no. 12 (December 11, 2018): 1371. doi:10.3390/polym10121371.en_US
dc.identifier.issn2073-4360
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15129
dc.description.abstractBiobased fillers, such as bio-derived cellulose, lignin byproducts, and biochar, can be used to modify the thermal, mechanical, and electrical properties of polymer composites. Biochar (BioC), in particular, is of interest for enhancing thermal and electrical conductivities in composites, and can potentially serve as a bio-derived graphitic carbon alternative for certain composite applications. In this work, we investigate a blended biopolymer system: poly(lactic acid) (PLA)/poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV), and addition of carbon black (CB), a commonly used functional filler as a comparison for Kraft lignin-derived BioC. We present calculations and experimental results for phase-separation and nanofiller phase affinity in this system, indicating that the CB localizes in the PHBV phase of the immiscible PHBV:PLA blends. The addition of BioC led to a deleterious reaction with the biopolymers, as indicated by blend morphology, differential scanning calorimetry showing significant melting peak reduction for the PLA phase, and a reduction in melt viscosity. For the CB nanofilled composites, electrical conductivity and dynamic mechanical analysis supported the ability to use phase separation in these blends to tune the percolation of mechanical and electrical properties, with a minimum percolation threshold found for the 80:20 blends of 1.6 wt.% CB. At 2% BioC (approximately the percolation threshold for CB), the 80:20 BioC nanocomposites had a resistance of 3.43 × 108 Ω as compared to 2.99 × 108 Ω for the CB, indicating that BioC could potentially perform comparably to CB as a conductive nanofiller if the processing challenges can be overcome for higher BioC loadings.en_US
dc.description.sponsorshipNational Science Foundation Grant# ECCS-1542210; Montana State Universityen_US
dc.language.isoenen_US
dc.rightsCC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleIncorporation of carbon nanofillers tunes mechanical and electrical percolation in PHBV:PLA blendsen_US
dc.typeArticleen_US
mus.citation.extentfirstpage1371en_US
mus.citation.issue12en_US
mus.citation.journaltitlePolymersen_US
mus.citation.volume10en_US
mus.identifier.categoryEngineering & Computer Scienceen_US
mus.identifier.doi10.3390/polym10121371en_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.departmentMechanical & Industrial Engineering.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage8en_US
mus.contributor.orcidRyan, Cecily A.|0000-0001-8335-2287en_US


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CC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.
Except where otherwise noted, this item's license is described as CC BY, This license lets you distribute, remix, tweak, and build upon this work, even commercially, as long as you credit the original creator for this work. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.

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