Degradation Study of Polypropylene Based Composites Containing Weld Lines 1999-01-3005
This work deals with the natural weathering of PP composites containing weld lines. Single and double-gated injection molded bars were exposed to natural environment in Campina Grande (Brazil) for periods up to 45 weeks and they were tested for mechanical properties, surface fractography and IR spectroscopy.
The results pointed that weld lines make the parts weaker, although the strength loss caused by weathering of double injected samples was similar to the ones produced by single-gated injection. It was also observed peculiar characteristics such as strength recovery after long term weathering and adhesion reduction of the glass fiber composites.
Citation: Tocchetto, R., Barros, L., Rabello, M., and D'Almeida, J., "Degradation Study of Polypropylene Based Composites Containing Weld Lines," SAE Technical Paper 1999-01-3005, 1999, https://doi.org/10.4271/1999-01-3005. Download Citation
Author(s):
R. S. Tocchetto, L. A. Barros, M. S. Rabello, J. R. M. D'Almeida
Affiliated:
Department of Materials Engineering, Department of Materials Science and Metallurgy
Pages: 10
Event:
International Mobility Technology Conference and Exhibit
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Glass fibers
Composite materials
Welding
Spectroscopy
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