The influence of nanosized calcium carbonate on the gelation process, thermal stability and mechanical properties of rigid poly(vinyl chloride) has been studied. The gelation time of rigid PVC/calcium carbonate nanocomposites depends on the percentage and superficial treatment of CaCO3. The results of thermogravimetric analysis underline an improvement of the thermal stability as a function of the surface modifier. Finally, the flexural modulus, the flexural strength as well as the critical stress intensity factor increase with the addition of poly(acrylic acid) (PAA) or poly(butadiene-co- acrilonitrile-co-acrylic acid) (PBAA) coated nanoparticles.
PVC/CaCO3 Nanocomposites: Influence of nanoparticle surface treatment on properties / I., Bonadies; M., Avella; R., Avolio; Carfagna, Cosimo; M., Errico; G., Gentile. - 1255:(2010), pp. 162-164. (Intervento presentato al convegno 5th International Conference on Times of Polymers (TOP) and Composites nel 20 - 23 June 2010) [10.1063/1.3455564].
PVC/CaCO3 Nanocomposites: Influence of nanoparticle surface treatment on properties
CARFAGNA, COSIMO;
2010
Abstract
The influence of nanosized calcium carbonate on the gelation process, thermal stability and mechanical properties of rigid poly(vinyl chloride) has been studied. The gelation time of rigid PVC/calcium carbonate nanocomposites depends on the percentage and superficial treatment of CaCO3. The results of thermogravimetric analysis underline an improvement of the thermal stability as a function of the surface modifier. Finally, the flexural modulus, the flexural strength as well as the critical stress intensity factor increase with the addition of poly(acrylic acid) (PAA) or poly(butadiene-co- acrilonitrile-co-acrylic acid) (PBAA) coated nanoparticles.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
