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Intelligent Automated Cure Processing of Polyimides

Published online by Cambridge University Press:  15 February 2011

David E. Kranbuehl ,
Sean M. Hart  and
Al Loos
David E. Kranbuehl
Affiliation:
Department of Chemistry The College of William and Mary Williamsburg, Virginia 23187-8795
Sean M. Hart
Affiliation:
Department of Chemistry The College of William and Mary Williamsburg, Virginia 23187-8795
Al Loos
Affiliation:
Department of Engineering Science and Mechanics Virginia Polytechnic Institute and State University Blacksburg, Virginia 24061
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Abstract

An intelligent, closed-loop expert system has been developed for the widely used high performance polyimide PMR-15. This expert system has been used for intelligent, automated sensor/model control of the fabrication of flat panels in both the autoclave and the thermal press. Panels have been made, ranging in thickness from less than 1/8 inch to 1/4 inch, using PMR-15 prepreg. Various prepreg samples have been used, ranging in age from fresh to one year old under freezer storage conditions. These materials exhibit significantly different processing properties as a result of the aging process. This expert system uses in-situ Frequency Dependent Electromagnetic Sensing (FDEMS), the Loos processing model for PMR-15, and the Qualitative Processing Automation Language (QPAL) software shell developed by Frances Abrams in conjunction with the Universal Technology Corporation for the United States Air Force.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 305: Symposium I – High-Performance Polymers and Polymer Matrix Composites , 1993 , 231
Copyright
Copyright © Materials Research Society 1993

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