The use of thermoplastic polyolefins (TPOs) in bumper fascias and other automotive applications has been rising rapidly in the last few years. Bumper fascias are relatively simple to recycle, and in the future, the recycling of post-consumer bumper fascias from vehicles may become a successful business activity provided several technical issues are first resolved. Toward that end the influence of paint contamination on the performance of recycled TPO bumper fascias was addressed in this study. The presence of paint particles in the recycled material was found to decrease the impact strength and the elongation-to-break. But the tensile modulus, tensile strength, flexural modulus, and flexural strength were not affected. The results of this study suggest that recycled material from painted TPO bumper fascias could possibly be used in various automotive applications with lesser performance demands than bumper fascias. These may include various interior and under-the-hood applications where very high impact strength may not be required. In applications which require high impact properties it would be necessary to remove 80-90% of the paint. The remaining 10-20% of paint contamination, was observed to have little adverse effect on the mechanical performance and impact strength of the recycled TPO.
Role of paint contamination recycling TPO bumper fascias
1997
14 Seiten, 6 Quellen
Conference paper
English
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