title: Estimation of mechanochemical dechlorination rate of poly(vinyl chlorde).
abstract: Poly(vinyl chloride) (PVC) was ground in air with CaO in the presence of quartz powder as a grinding aid by a small-scale planetary ball mill to investigate the relation of the dechlorination rate of PVC with the impact energy of the balls calculated from a computer simulation based on the Discrete Element Method under various conditions. Mechanochemical dechlorination proceeds as the grinding progresses and is improved with an increase in both the mill speed and the amount of balls introduced into the mill. The same trend can be seen in the relation between the specific normal impact energy of the balls and the rotational speed. The relationship between the observed dechlorination rate and the computed normal impact energy of the balls is linear, with a correlation coefficient of 0.965. This relationship can be used to estimate the dechlorination rate of PVC in a large-scale planetary ball mill.
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan. mio@iamp.tohoku.ac.jp
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Mio
authors.forename: Shu
authors.initials: S
authors.lastname: Saeki
authors.forename: Junya
authors.initials: J
authors.lastname: Kano
authors.forename: Fumio
authors.initials: F
authors.lastname: Saito
mesh_terms: D002713:Chlorine / Q000737:chemistry; D004785:Environmental Pollutants / Q000032:analysis; D004787:Environmental Pollution / Q000517:prevention & control; D005544:Forecasting; D008962:Models, Theoretical; D010316:Particle Size; D011143:Polyvinyl Chloride / Q000737:chemistry*; D013314:Stress, Mechanical
chemical_list: D004785:Environmental Pollutants; D002713:Chlorine; D011143:Polyvinyl Chloride