SEDL / STP / STP1402-EB / STP10709S

Application of Theory to Prediction and Analysis of Dynamic Mechanical Properties of Polymer Composites

Goldman, AY
Techical Specialist, Materials Engineering Department. Alcoa CSI, Crawfordsville, IN

Pages: 10    Published: Jan 2001

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Abstract

A comparison was made between experimental and computed dependencies of the dynamic modulus, and the mechanical loss tangent of the composites with a glassy polymer matrix - styrene-acrylonitrile (SAN) or (SAN-P) acrylonitrile-methacrylate-styrene in ASA plastic (acrylonitrile-styrene-acrylic) copolymer with particles of a peroxidic butylacrylate rubber (BAR-P). The composite material was obtained by emulsion polymerization.

An algorithm was developed for determining, prediction and optimization of the viscoelastic properties of composite materials with spherically layered inclusions by varying microstructure parameters.

The dynamic mechanical characteristics of the grafted copolymer that form a part of the ASA plastic allow the viscoelastic properties of ASA plastic to be predicted with better precision than if the dispersed face were identified with the BAR-P itself.