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Recent Advances in Modern Static Devolatilization
Author(s) -
Wäckerlin Manfred,
Nising Philip
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200751303
Subject(s) - air preheater , polystyrene , polymer , materials science , polycarbonate , methyl methacrylate , process engineering , monomer , environmental science , composite material , waste management , engineering
Summary: The present paper deals with state‐of‐the‐art static devolatilization technology for polymer melts. Recent results obtained by CFD‐studies as well as by experimental testing at pilot scale are presented for the devolatilization of technical thermoplasts like polystyrene, poly (methyl methacrylate) and polycarbonate. It is shown that with the correct design of preheater and devolatilization chamber, volatiles like monomers and solvents can be efficiently removed from the polymer melt, both from the economical and technological point of view. As design criteria for the preheater, maldistribution and heat transfer efficiency are explained in detail.