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RESEARCH PRODUCT

Effect of Nanodiamonds on Structure and Durability of Polyethylene Oxide-Based Nanocomposites

Rosalia TeresiGabriele RuisiRossella ArrigoNadka Tzankova Dintcheva

subject

Materials scienceArticle SubjectNanoparticle02 engineering and technology010402 general chemistry01 natural sciencesDurabilityCrystallinitylcsh:Technology (General)Ultimate tensile strengthGeneral Materials ScienceComposite materialPhotodegradationPolyethylene Oxidechemistry.chemical_classificationNanocompositeNanocompositePolymerAdhesion021001 nanoscience & nanotechnologyAccelerated aging0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei Materialichemistrylcsh:T1-995Materials Science (all)0210 nano-technologyNanodiamond

description

Polymer-based nanocomposites containing nanodiamonds (NDs) are attractive multifunctional materials with a growing range of applications. In this work, in the frame of developing completely biocompatible systems, nanocomposites based on polyethylene oxide (PEO) and different amount of NDs have been formulated through melt mixing and fully characterized. In particular, the reinforcement effect of NDs in PEO has been probed through tensile tests, and the rheological response of PEO-based nanocomposites as a function of the nanoparticles amount has been investigated and discussed. The obtained results show that the presence of well-distributed NDs strengthens the mechanical performance of the nanocomposites and brings about an increase of the PEO crystallinity, suggesting a strong adhesion between NDs and polymer matrix. Furthermore, as a result of NDs adding, alterations of the rheological behaviour of neat PEO can be noticed, as NDs are able to significantly influence the long-range dynamics of PEO chains. Besides, accelerated aging tests demonstrate that NDs show a remarkable protective ability against PEO photodegradation, due to their ability to attenuate efficiently UV radiation. The latter opens up new avenues for the use of NDs as multifunctional nanofillers for polymer-based nanocomposites with enhanced photooxidative resistance.

yearjournalcountryeditionlanguage
2016-01-01Journal of Nanomaterials
https://doi.org/10.1155/2016/5436823