Poly(ether ether ketone) (PEEK)-based nanocomposites have been realized with incorporation (0–30 wt %) of anhydrous calcium terephthalate salts (CATAS), synthetized by reaction of terephtalic acid with the metal (Ca) oxide, by means of a melt processing. Their structure, morphology, thermal, and mechanical properties have been investigated. Scanning electron microscopy observations confirmed homogeneous dispersion of nanometer-sized fillers and a toughened fracture morphology even at the higher content, while thermal characterization confirmed an unvaried thermal stability and unmodified crystalline structure of the reference PEEK matrix. A negligible nucleating effect was evidenced, while a blocking effect of the amorphous phase fraction provide composites with increased stiffness, confirmed by enhanced values of G’ and shifts of glass transition peak to higher temperatures, for restriction in chain mobility imposed by CATAS. The proposed solutions aimed to enlarge the application range of high performance costly PEEK-based composites, by using thermally stable nanofillers with limited costs and easily controllable synthesis phase.

A novel class of cost effective and high performance composites based on terephthalate salts reinforced polyether ether ketone / Dominici, Franco; Puglia, Debora; Luzi, Francesca; Sarasini, Fabrizio; Rallini, Marco; Torre, Luigi. - In: POLYMERS. - ISSN 2073-4360. - 11:12(2019). [10.3390/polym11122097]

A novel class of cost effective and high performance composites based on terephthalate salts reinforced polyether ether ketone

Sarasini, Fabrizio;
2019

Abstract

Poly(ether ether ketone) (PEEK)-based nanocomposites have been realized with incorporation (0–30 wt %) of anhydrous calcium terephthalate salts (CATAS), synthetized by reaction of terephtalic acid with the metal (Ca) oxide, by means of a melt processing. Their structure, morphology, thermal, and mechanical properties have been investigated. Scanning electron microscopy observations confirmed homogeneous dispersion of nanometer-sized fillers and a toughened fracture morphology even at the higher content, while thermal characterization confirmed an unvaried thermal stability and unmodified crystalline structure of the reference PEEK matrix. A negligible nucleating effect was evidenced, while a blocking effect of the amorphous phase fraction provide composites with increased stiffness, confirmed by enhanced values of G’ and shifts of glass transition peak to higher temperatures, for restriction in chain mobility imposed by CATAS. The proposed solutions aimed to enlarge the application range of high performance costly PEEK-based composites, by using thermally stable nanofillers with limited costs and easily controllable synthesis phase.
2019
poly(ether ether ketone), PEEK; calcium terephthalate salts; high performance nanocomposites
01 Pubblicazione su rivista::01a Articolo in rivista
A novel class of cost effective and high performance composites based on terephthalate salts reinforced polyether ether ketone / Dominici, Franco; Puglia, Debora; Luzi, Francesca; Sarasini, Fabrizio; Rallini, Marco; Torre, Luigi. - In: POLYMERS. - ISSN 2073-4360. - 11:12(2019). [10.3390/polym11122097]
File allegati a questo prodotto
File Dimensione Formato  
Dominici_novel-class-cost_2019.pdf

accesso aperto

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Creative commons
Dimensione 2.84 MB
Formato Adobe PDF
2.84 MB Adobe PDF

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1338816
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 6
social impact