منابع مشابه
The use of polyvinyl chloride films dyed with methyl red in radiation dosimetry
Background: The purpose of this work was to investigate the use of polyvinyl chloride (PVC) dyed with methyl red as a high dose radiation dosimetry. Materials and Methods: Commercial PVC films from Sabic made from resins PVC57S with thickness of 60 µm and methyl red with a molecular weight of 269.31 were used. Irradiation was carried out using a 60Co γ-ray generator with sources arr...
متن کاملThermal Degradation of Polyvinyl Chloride
A survey is given of the recent advances in the study of and the present knowledge of the thermal degradation of polyvinyl chloride. The sites for initiation of the thermal degradation, the mechanism of the dehydrochiorination, the discolouration of PVC by heat and the influence of plasticizers on the rate of degradation are discussed.
متن کاملthe use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach
abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
15 صفحه اولEnvironmental Impacts of Polyvinyl Chloride
This report was prepared by the author and does not represent the opinions of The University of Oregon or any of its affiliates. p. 53 © Basel Action Network. PVC coated wire waste sorted and burned by villagers in Guiyu, China. Cancer causing polycyclic aromatic hydrocarbons and dioxins will result from burning wires made from PVC and brominated flame retardants. p. 77 © Bryce lankard/Greenpea...
متن کاملIncidence of cancer among vinyl chloride and polyvinyl chloride workers.
The results of a follow up study of the incidence of cancer and the mortality in a cohort of 454 male workers producing vinyl chloride and polyvinyl chloride are presented. The study population was restricted to employees with more than one year's work experience in the study plant between 1950 and 1969 and the cohort was followed up from 1953 to the end of 1979. Twenty three new cases of cance...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 1964
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.13.641