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Hot compaction and consolidation of polycarbonate powder
Author(s) -
Vick Linda W.,
Kander Ronald G.
Publication year - 1998
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.10352
Subject(s) - compaction , materials science , consolidation (business) , sintering , polycarbonate , thermoplastic , composite material , solid state , thermoplastic polymer , polymer , engineering , engineering physics , accounting , business
In order to take advantage of the potential benefits provided by solid‐state processing of thermoplastic polymers (1–3), conventional compaction and sintering techniques must be modified to prevent large‐scale recovery (or dimensional changes) that occur upon heating polymeric compacts above their respective glass transition temperature ( T g ). Two solid‐state processing techniques that have the potential for reducing recover, hot compaction and consolidation (sintering polymeric compacts under applied pressure), were investigated in this study. The results presented in this paper show that while hot compaction (below T g ) does not prevent large‐scale recovery, consolidation using pressures as low as 50 kPa (7.3 psi) did significantly reduce recovery in polycarbonate compacts.