Flexible thermoset towpregs by electrostatic powder fusion coatingThermoset prepregs of expoxy and polyimide have been produced by electrostatic deposition of charged fluidized polymer powders on spread continuous fiber tows. The powders are melted onto the fibers by radiant heating to adhere the polymer to the fiber. This process produces towpreg uniformly and rapidly without imposing severe stresses on the fibers. The towpregs produced by this novel process were consolidated to make unidirectional laminates for mechanical testing. Low void content samples have been made and demonstrated by C-scan and scanning electron microscopy. The mechanical properties of unidirectional laminates are equivalent to composites fabricated by conventional techniques.
Document ID
19920027609
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yang, Pei-Hua (Georgia Inst. of Tech. Atlanta, GA, United States)
Varughese, Babu (Georgia Inst. of Tech. Atlanta, GA, United States)
Muzzy, John D. (Georgia Institute of Technology Atlanta, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Composite Materials
Meeting Information
Meeting: International SAMPE Symposium and Exhibition