Hygrothermal behavior of carbon fiber-reinforced poly(ether ether ketone) and poly(phenylene sulfide) composites. I
- National Tsing Hua Univ., Hsinchu (Taiwan, Province of China)
The moisture absorption, crystallinity, dynamic mechanical properties, and mechanical strength of carbon/PEEK and carbon/PPS composites were measured following exposure to temperature/humidity environments and immersion in water. Both composites exibit good moisture/temperature resistance and property retention after hygrothermal exposure. Moisture diffusion in both composites follows the Fickian diffusion model. The equilibrium moisture absorptions are 0.153 and 0.130 percent, respectively, for the carbon/PEEK and carbon/PPS composites at 80 C, 85 percent relative humidity. A crystallinity increase is observed in the case of the carbon/PPS composite exposed to 80 C, 85 percent RH, which correlates with the damping properties in the dynamic mechanical study. For the carbon/PEEK composite, the hygrothermal effect on crystallinity is negligible. The mechanical properties of the carbon/PEEK composite decrease slightly with the increasing temperature/moisture and exposure time, whereas the opposite effect is observed in the case of the carbon/PPS composite. 13 refs.
- OSTI ID:
- 6133281
- Journal Information:
- Polymer Composites; (United States), Vol. 13:6; ISSN 0272-8397
- Country of Publication:
- United States
- Language:
- English
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COMPOSITE MATERIALS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
CARBON FIBERS
REINFORCED PLASTICS
SULFIDES
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CHALCOGENIDES
FIBERS
MATERIALS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
REINFORCED MATERIALS
SULFUR COMPOUNDS
SYNTHETIC MATERIALS
360603* - Materials- Properties
360606 - Other Materials- Physical Properties- (1992-)