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Effect of processing parameters on fusion and mechanical properties of a twin‐screw extruded rigid PVC pipe
Author(s) -
Moghri M.,
Garmabi H.,
Akbarian M.
Publication year - 2003
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.10067
Subject(s) - charpy impact test , materials science , fusion , composite material , differential scanning calorimetry , elongation , hydrostatic equilibrium , capillary action , hydrostatic pressure , extrusion , stress (linguistics) , ultimate tensile strength , mechanics , thermodynamics , linguistics , philosophy , physics , quantum mechanics
The effect of varying mass temperature and screw speed on the fusion level and mechanical properties of a rigid PVC pipe produced by a twin‐screw extruder has been investigated. Differential Scanning Calorimetry (DSC) and capillary rheometry have been used to determine pipe fusion levels. While yield stress was shown to be completely insensitive to fusion level, a very distinct maximum of falling weight and notched Charpy impact strengths and elongation at break was observed at moderate fusion level. Short‐term burst strength values increased with degree of fusion while hydrostatic internal pressure tests revealed optimum resistance for pipes of varying fusion level. The effect of processing temperature on fusion in the Brabender Plasticorder was also examined.