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PVC—gelation model
Author(s) -
Parey J.,
Menges G.
Publication year - 1981
Publication title -
journal of vinyl technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 0193-7197
DOI - 10.1002/vnl.730030303
Subject(s) - plasticizer , polyvinyl chloride , materials science , plastics extrusion , shear (geology) , composite material , polymer science , polymer chemistry
Abstract The plasticization of polyvinyl chloride proceeds in two stages. In the first stage, the PVC dry‐blend, under the influence of temperature and particularly of shear, changes into a material capable of gelling. In the second stage, mainly through the effect of temperature, this material becomes gelled. The shear serves here only to homogenize the material. Tests show that the stages do not necessarily have to follow one another directly in an extruder, but can take place separately in terms of both time and space.