Dimensional stability and tensile properties of drawn polystyrene composites

Abstract

SynopsisRecovery experiments above Tg and tensile tests have been performed on glass bead and' short glass fiber-polystyrene composite sheets obtained from extrusion and subsequent hot drawing. A shift procedure has been applied to the recoil data using a WLF equation. The data reported show that both dimensional stability and mechanical properties are enhanced by adding rigid fillers to the drawn thermoplastic matrix. The presence of short fibers reduces strongly the recoverable strain of the oriented material. A simple model able to predict the equilibrium values of the length reversion ratio of glass bead composites is developed and compares well with the experimental data.

Coupling Effect of Mechanical and Thermal Rejuvenation for Polystyrene: Toward High Performance of Stiffness, Ductility, and Transparency

“…As one of the most promising transparent materials, polystyrene (PS) has exhibited excellent applicability due to its remarkable rigidity and stiffness, − outstanding optical properties, , good electric performance, , chemical resistance, , and dimensional stability. , However, because of the rather poor ductility, PS has yet to fulfill its promise to replace other optically clear polymers such as polycarbonate . Excluding the conventional rubber-toughening method, mechanical rejuvenation is regarded as an effective way to solve its inherent brittleness.…”

Liquid Crystalline Polymers Compatibilization and Adhesion Enhancement by Reactive Blending in Post-Consumers PET’s

“…The resulting so called in situ composites, formed by a polymeric matrix with liquid crystalline reinforcing phase has been extensively investigated in the past decades (Apicella et al, 1989;Nicodemo et al, 1981;Skovby et al, 1991;Zhang et al, 2000;Goh and Tan, 2012;Cruz and Son, 2015). Even in such cases, however, the properties of the resulting materials were lower than expected.…”