title: Use of inorganic Fullerene-like WS2 to produce new high-performance polyphenylene sulfide nanocomposites: role of the nanoparticle concentration.
abstract: The use of tungsten disulfide (WS2) nanoparticles offers the opportunity to produce novel and advanced polymer-based nanocomposite materials via melt blending. The developed materials, based on the high-performance engineering thermoplastic polyphenylene sulfide (PPS), display a unique nanostructure on variation of the nanoparticle concentration, as confirmed by time-resolved synchrotron X-ray diffraction. The cold-crystallization kinetics and morphology of PPS chains under confined conditions in the nanocomposite, as determined by differential scanning calorimetry (DSC) and atomic force microscopy (AFM), also manifest a dependence on the IF-WS2 concentration which are unexpected for polymer nanocomposites. The addition of IF-WS2 with concentrations greater than or equal to 0.5 wt % of IF-WS2 remarkably improves the mechanical performance of PPS with an increase in the storage modulus of 40-75%.
authors.affiliation: Departamento de Física e Ingeniería de Polímeros, Instituto de Ciencia y Tecnología de Polímeros, CSIC, c/Juan de la Cierva, 3, 28006, Madrid, Spain. mnaffakh@ictp.csic.es
authors.forename: Mohammed
authors.initials: M
authors.lastname: Naffakh
authors.forename: Carlos
authors.initials: C
authors.lastname: Marco
authors.forename: Marián A
authors.initials: MA
authors.lastname: Gómez
authors.forename: Julio
authors.initials: J
authors.lastname: Gómez-Herrero
authors.forename: Ignacio
authors.initials: I
authors.lastname: Jiménez