Thermal expansion coefficients of commingled carbon fiber/poly (ether-ether-ketone) composites

Ho Gyu Yoon, Kiyohisa Takahashi

Research output: Contribution to journalArticle

Abstract

Thermal expansion coefficients (CTE) of commingled composites manufactured from commingled yarns composed of carbon fibers (CF) and PEEK [poly(ether-ether-ketone)] filaments were measured and compared with those of CF/PEEK prepreg composites. All specimens showed stable and non-scattered CTE data as as a result of the thermal treatment or the repeating measurement on the same specimen. This procedure was necessary to obtain reproducible data. The unidirectional (U-D) commingled composite exhibited lower longitudinal CTE than the U-D prepreg composite, and showed a remarkable decrease of CTE at around Tg of PEEK resin. The CTE of the warp direction in 2-dimensional (2-D) commingled composite, that showed lower CTE than the weft direction due to the higher warp density, was found to be similar to that of 2-D prepreg (cross-ply) composite. Assuming the temperature dependence of CTE of the carbon fiber itself, theoretical predictions of CTE's of the U-D commingled and the 2-D prepreg composites were obtained in good agreement with experimental results.

Original languageEnglish
Pages (from-to)73-79
Number of pages7
JournalKobunshi Ronbunshu
Volume50
Issue number2
Publication statusPublished - 1993 Jan 1
Externally publishedYes

Fingerprint

Polyether ether ketones
thermal expansion
ketone
ether
Carbon fibers
Thermal expansion
Composite materials
carbon fiber
Yarn
resin
Resins
Heat treatment
prediction

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Science(all)
  • Materials Science (miscellaneous)
  • Ceramics and Composites
  • Polymers and Plastics

Cite this

Thermal expansion coefficients of commingled carbon fiber/poly (ether-ether-ketone) composites. / Yoon, Ho Gyu; Takahashi, Kiyohisa.

In: Kobunshi Ronbunshu, Vol. 50, No. 2, 01.01.1993, p. 73-79.

Research output: Contribution to journalArticle

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