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PMR Polyimide prepreg with improved tack characteristicsCurrent PMR Polyimide prepreg technology utilizes methanol or ethanol solvents for preparation of the PMR prepreg solutions. The volatility of these solvents limits the tack and drape retention characteristics of unprotected prepreg exposed to ambient conditions. Studies conducted to achieve PMR 15 Polyimide prepreg with improved tack and drape characteristics are described. Improved tack and drape retention were obtained by incorporation of an additional monomer. The effects of various levels of the added monomer on the thermo-oxidative stability and mechanical properties of graphite fiber reinforced PMR 15 composites exposed and tested at 316 C (600 F) are discussed.
Document ID
19780049293
Document Type
Conference Paper
Authors
Serafini, T. T. (NASA Lewis Research Center Cleveland, OH, United States)
Delvigs, P. (NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
April 1, 1978
Subject Category
COMPOSITE MATERIALS
Meeting Information
International Conference on Composite Materials(Toronto)
Distribution Limits
Public
Copyright
Other