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Greener Plastics

Evaluation of the Interactions Between Supercritical Carbon Dioxide and Polymeric Materials. 1994.

  TURI Technical Report No. 12. In this report, we present (1) the results of testing a broad spectrum of polymers in carbon dioxide over a range of temperatures and pressures and (2) the evaluation of the effect of high-pressure carbon dioxide on the chemical/physical properties of the polymers. The carbon dioxide conditions included both super and subcritical points. The testing was performed, in a static manner, with four controlled variables: temperature, pressure, treatment time, and decompression time. The evaluation of the interactions between high-pressure carbon dioxide and polymers included absorption, swelling, solubility, plasticization, crystallization, and mechanical properties. The results of these evaluations are discussed in three sections: "I. Absorption, Swelling, and Dissolution of Carbon Dioxide in Polymers at Elevated Pressure," "II. Thermal Properties," and "III Mechanical Properties." This report resulted from direct collaboration and funding from the following sources: Los Alamos National Laboratory; Toxics Use Reduction Institute, University of Massachusetts, Lowell; International Business Machines Download PDF file (6.39 MB)

Green(er) PVC:The Development of Lead and Phthalate-Free Nanocomposite Formulations with Practical Utility. 2007.

  Dr. Daniel Schmidt, and his research team from the Department of Plastics Engineering at UMass Lowell, in collaboration with industry partner Teknor Apex, demonstrate performance of PVC formulations that do not use the toxic chemicals lead or phthalates. TURI Technical Report No. 60. Download PDF file (1.09 MB)