A study on environmental stress cracking in nano-SiO2-filled polycarbonate
Source abstract
Abstract
In this study, the environmental stress cracking (ESC) resistance of nano-SiO2 particle-filled polycarbonate (PC) was investigated at room temperature by using a fracture mechanical test method. Two PC-based nanocomposites with nano-SiO2 content of 1 and 4 vol% were compounded using a twin-screw extruder. The incorporation of nanoparticles into PC leads to an improvement in ESC resistance, which increases with increased filler loading up to 4 vol%. Fractography analyses suggest that the formation of cavities/debonding and localized microdeformation of matrix induced by nanoparticles as a result of energy dissipation are responsible for the improvement of ESC resistance.
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Research context
OpenAlex topics: Polymer crystallization and properties · Polymer Nanocomposites and Properties · Corrosion Behavior and Inhibition
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