STOCKERTOWN, PA (February 10, 2011) – Elisabeth S. Papazoglou, Ph.D., Senior Researcher, will be presenting a paper on March 1 at 4:30 pm at the session entitled Advances in Polyolefin Stabilization 2 at the forthcoming SPE International Polyolefins Conference.
The paper authored by Dr. Papazoglou and Kenneth R. Malin (Director of PMC Polymer Products) is entitled “Novel, Cost Effective Systems for UV Protection of TPO and Polypropylene.” An abstract follows.
Abstract: The long term UV and heat stability required of exterior TPO and polypropylene applications (roofing, siding, membranes etc.) pose serious challenges to formulators, both technical and economic. On the technical side, selection of compatible additives is key while on the cost side very expensive additives may not be acceptable by the end users. We are presenting data on long term UV stability of TPO formulations containing combinations of HALS, UV absorbers, synergists and base stabilizers in such a way that performance in a Xenon arc weatherometer according to ASTM G155, exceeds 20,000 hours of exposure before failure occurs. Comparisons are made with more expensive systems which failed at less than 12,000 hours. The flexibility offered by our systems approach to stabilization as opposed to relying on a single, very high performance ingredient is significant and may also offer practical benefits in field applications.
Dr. Papazoglou has 14 years of industry experience, working with multi-disciplinary teams on compatibilization and stabilization problems in polymers, and she has developed two laboratories for polymer characterization and controlled delivery formulations. She holds five patents and is the author of more than 40 publications and several book chapters in the areas of modeling, stabilization and compatibility.