CHARACTERIZATION AND ANALYSIS OF PMR-15 POLYIMIDE MATRICES FOR HIGH TEMPERATURE COMPOSITES.

Eamor Woo, J. C. Seferis, P. R. Lopez, L. B. Ilcewicz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Neat polyimide matrix (PMR-15) film samples were prepared by two methods: press-forming and autoclave-forming. For each method, three different cure cycles, denoted by the highest temperatures during cure (288 degree C, 306 degree C and 329 degree C), were investigated. The curing mechanism was investigated with thermoanalytical techniques (pressure differential scanning calorimetry and thermogravimetric analysis). Possible structural differences in the samples were correlated to the processing variables and related to the results from dynamic mechanical analysis (DMA). The DMA results showed that the films produced by the three cure cycles either in the press or in the autoclave were quite identical. For the three cure cycles investigated, it was observed that post-curing had the strongest effect on the low temperature cured samples (288 degree C and 306 degree C cured samples); while the cure temperature was proportionally related to the resulting sample Tg and stress-free temperature.

Original languageEnglish
Title of host publicationInt SAMPE Symp Exhib
EditorsToshinori Takagi
PublisherSAMPE
Pages1073-1083
Number of pages11
ISBN (Print)0938994344
Publication statusPublished - 1987 Dec 1

Publication series

NameInt SAMPE Symp Exhib
Volume32
ISSN (Print)0891-0138

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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