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Quantification and prediction of processing damage in extruded PVC
Author(s) -
Riley David W.
Publication year - 1990
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.730120106
Subject(s) - extrusion , polypropylene , shearing (physics) , service life , fragmentation (computing) , materials science , polymer , composite material , forensic engineering , computer science , engineering , operating system
It is known that oxidation occurring during processing of some polymers like PVC and polypropylene causes their deterioration. This, in turn, detracts from its service life. This study shows how the extrusion process shear can be detected and followed stepwise and in effect be controlled. Separate identification of fragmentation and crosslinking levels are determined. Quantification of shearing, fragmentation, and crosslinking of the PVC melt is used to derive service life loss due to extrusion processing.