Abstract
Abstract Stress-relaxation data are presented for two commercial grades of ABS and an ABS-polycarbonate blend over a temperature range which includes the glassy, transition, and entanglement regions. Reduced master curves and the shift factor, aT, are obtained and compared to data for fractionated polystyrene and polycarbonate; the principle of time-temperature superposition is shown to be as applicable to the relaxation data for these heterogeneous polymers as to similar data for homogeneous polymers. Compared with homogeneous polymers, the reduced curves for the composites are different in several ways: A slightly larger negative slope in the glassy region, a more diffuse transition region, a higher and broader entanglement plateau, and a smaller negative slope in the flow region are noted. For the two ABS polymers, the temperature dependences of aT are about that of a homogeneous polymer with an equivalent Tg, indicating that the discrete rubber particles do not alter the relative relaxational behavior...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
