Effects of Thermal Runaway Hazard for Organic Peroxides conducted by incompatibilities
| Autor: | Shang-hao Liu, 劉上豪 |
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| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 99 Organic peroxides are widely used in many industrial fields as an initiator, hardeners, or cross-linking agents of radical polymeriszation process with unsaturated monomersand. However, organic peroxides contain the bivalent -O-O- structure which can be broken easily and the exothermic decomposition reaction involves the splitting of the peroxide bond with a huge heat release and gas products that may cause a fire or thermal explosion under an uncontrollable situation. The results of the tests have proven helpful in establishing safe handling, storage, transportation, and disposal guidelines. This study used Differential Scanning Calorimetry, (DSC), and Thermal Activity Monity III, (TAM III), to analyze the thermal hazards and incompatibilities of five common used organic peroxides (CHP, BPO, DCPO, LPO, and MEKPO). Exothermic onset temperature, peak power, heat of decomposition of dynamic and isothermal scanning tests, time to maximum rate under isothermal conditions, etc. were performed to compare the exothermic behaviors and autocatalytic reactions in process systems. The thermokinetic data obtained via Vent Sizing Package 2, (VSP2), adiabatic calorimetry, such as initial exothermic temperature, adiabatic time to maximum heat rate, adiabatic temperature rise, and self-heating rate, were applied for runaway hazard evaluation and compared the effects of thermal runaway hazard for organic peroxide conducted by acids, alkalines, and products. These results are beneficial to build up the organic peroxide thermal hazard database (OPTHD) that can provide to academics researchers, engineers, operators and others in terms of loss prevention. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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