Preparation and properties of plasticized starch/multiwalled carbon nanotubes composites

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DOIResolve DOI: http://doi.org/10.1002/app.26799
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TypeArticle
Journal titleJournal of Applied Polymer Science
Volume106
Issue2
Pages14311437; # of pages: 7
Subjectstarch; thermoplastics; multiwalled carbon nanotubes; nanocomposite; reinforcement
AbstractIn this work we have studied the utilization of multiwalled carbon nanotubes (MWCNTs) as filler-reinforcement to improve the performance of plasticized starch (PS). The PS/MWCNTs nanocomposites were successfully prepared by a simple method of solution casting and evaporation. The morphology, thermal behavior, and mechanical properties of the films were investigated by means of scanning electron microscopy, wide-angle X-ray diffraction, differential scanning calorimetry, and tensile testing. The results indicated that the MWCNTs dispersed homogeneously in the PS matrix and formed strong hydrogen bonding with PS molecules. Compared with the pure PS, the tensile strength and Young’s modulus of the nanocomposites were enhanced significantly from 2.85 to 4.73 MPa and from 20.74 to 39.18 MPa with an increase in MWCNTs content from 0 to 3.0 wt %, respectively. The value of elongation at break of the nanocomposites was higher than that of PS and reached a maximum value as the MWCNTs content was at 1.0 wt %. Besides the improvement of mechanical properties, the incorporation of MWCNTs into the PS matrix also led to a decrease of water sensitivity of the PS-based materials.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Industrial Materials Institute
Peer reviewedYes
NRC number53663
NPARC number15826000
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Record identifierfeb944a5-f472-41db-b2aa-11470b0483c9
Record created2010-07-19
Record modified2016-05-09
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