Enhanced rigidity of recycled polypropylene from packaging waste by compounding with talc and high-crystallinity polypropylene
2001 (English)In: Polymers for Advanced Technologies, ISSN 1042-7147, E-ISSN 1099-1581, Vol. 12, no 5, 279-284 p.Article in journal (Refereed) Published
Polypropylene (PP) constituted 30% of the collected material in a Swedish collection system for rigid plastic packaging waste. The PP fraction was however a complex mixture of grades with widely different properties. In order to enhance the rigidity of the recycled PP, modified grades were prepared by compounding with talc and/or a virgin high-crystallinity PP grade, Adding 20-40% of high-crystallinity PP enhanced the stiffness and yield strength without impairing the impact resistance. A composite material consisting of 20% of this grade, 20% talc and 60% recycled PP gave mechanical properties similar to those of a commercial talc filled PP compound used for demanding engineering applications. The present study demonstrates that recycled PP derived from post-consumer packaging waste can also be made useful for demanding engineering applications.
Place, publisher, year, edition, pages
2001. Vol. 12, no 5, 279-284 p.
polypropylene, packaging, recycling, crystallinity, mechanical properties, talc, composite, high-density polyethylene, epdm
IdentifiersURN: urn:nbn:se:kth:diva-20561ISI: 000168325000001OAI: oai:DiVA.org:kth-20561DiVA: diva2:339257
QC 201005252010-08-102010-08-10Bibliographically approved