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Plastics and Resins

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)

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)

Styrene Use in Massachusetts. 1993.

  TURI Technical Report No. 7. The primary use of styrene in Massachusetts and nationwide is in the production of polystyrene. The polystyrene production industry in this state consumed 99 % of the styrene used in Massachusetts in 1990 according to the TURA data. Polystyrene typically is manufactured in large facilities where high volumes of the plastic are produced. Worker exposure to styrene in these facilities is usually well monitored and maintained within OSHA permissible exposure limits. However, with the large quantity of styrene used in polystyrene production, handling accidents potentially could be a significant source of worker and public exposure. Over the past six years, since the Department of Environmental Protection (DEP) began recording accidental releases, 28 accidental releases of styrene have been reported. Almost all of these releases have occurred on-site at the industrial facility. Download PDF file (1.02 MB)