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The morphology of flexible PVC
Author(s) -
Chapman Theodore F.,
Isner James D.,
Summers James W.
Publication year - 1979
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.730010305
Subject(s) - polyvinyl chloride , environmental science , materials science , humidity , waste management , composite material , environmental chemistry , pulp and paper industry , environmental engineering , chemistry , physics , engineering , thermodynamics
This paper relates the PVC grain to the flow characteristics of PVC formulations plasticized at various levels. As with rigid PVC, the resin primary particles become the melt flow units at low processing temperature. Agglomeration of the grains at intermediate processing temperatures causes a rough surface. At increased processing temperatures, melting causes primary particles to lose identity and develop a smooth and glossy surface with good physicals.