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Title: Surface properties of carbons obtained from polyvinyl chloride
Authors: Youssef, A M
Abdel-Bary, E M
Samra, S E
Dowidar, A M
Issue Date: Oct-1991
Publisher: NISCAIR-CSIR, India
Abstract: Non-activated carbons have been prepared by the thermal degradation of polyvinylchloride (PVC) in air or nitrogen atmosphere in the temperature range 600-1000C. Carbon dioxide activated carbons from PVC have also been obtained by gasification of non-activated carbon obtained from PVC at 900°C burn-off (4-54%). Thermal degradation in air atmosphere gives high carbon yield because of increased cross-linking at lower temperature and chemisorbed oxygen on the carbon surface at high temperatures. Thermal degradation in air and gasification with carbon dioxidecreate carbon-oxygen surface groups which increase the water adsorption capacity Gasification with carbon dioxide to high burn-off creates new pores and widens already existing pores.
Page(s): 839-843
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.30A(10) [October 1991]

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