Abstract
Injection moulded glass-fiber reinforced polyamide 66 composites and unreinforced polymer samples have been characterised during conditioning up to 900 hours in water, ethylene glycol and water-glycol mixture at 50°C and 70°C. All materials showed significant fluid and temperature dependent weight and volume increase. Glass reinforcement significantly reduced the polymer fluid uptake. The absorption of the antifreeze mixture initially follows a simple rule of mixtures of the absorption of the two individual components. However, after absorption of approximately 5% a significantly higher than predicted level of antifreeze absorption was observed. This coincided with a significant increase in the volumetric swelling coefficient. Dynamic mechanical analysis and unnotched impact testing indicated significant changes in composite mechanical performance dependent on conditioning fluid and temperature.
Original language | English |
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Pages (from-to) | 1369-1379 |
Number of pages | 11 |
Journal | Polymer Composites |
Volume | 32 |
Issue number | 9 |
DOIs | |
Publication status | Published - Sept 2011 |
Keywords
- polyamide 66
- glass fibre
- automotive fluids