Polyamide-Based Fibers Containing Microwave-Exfoliated Graphite Nanoplatelets

Risultato della ricerca: Articlepeer review

Abstract

Exfoliated Graphite NanoPlatelets (GNP) have been obtained from Graphite Intercalation Compounds (GIC) subjected to thermal and microwave treatments. Accurate morphological and structural characterization of obtained GNP, performed to compare the degree of exfoliation, show that microwave-treated GNP, exhibit well-exfoliated structure, without any reduction in dimensions compared with the native GIC, differently to the thermal-treated ones. Microwave-treated GNP have been introduced in polyamide (PA) through melt-mixing to obtain nanocomposite that has been subjected to elongational flow, with the aim to improve the nanofiller dispersion and induce GNP orientation along the fiber direction. Upon extensional flow, really, GNP are able to further exfoliate and to align along the flow direction, leading to obtain advanced nanocomposite with excellent mechanical performance. Finally, both GNP loading and stretching lead to a significant variation in crystalline PA phase, detected by thermal and nuclear magnetic resonance analysis in the solid state.
Lingua originaleEnglish
pagine (da-a)786-797
Numero di pagine12
RivistaAdvances in Polymer Technology
Volume37
Stato di pubblicazionePublished - 2018

All Science Journal Classification (ASJC) codes

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  • Organic Chemistry
  • Polymers and Plastics

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