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High heat applications for SMA modified PVC: Cost effective engineering performance
Author(s) -
Bryner James G.
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.730120212
Subject(s) - fire retardant , heat resistance , sma* , vicat softening point , materials science , composite material , molding (decorative) , high heat , thermal resistance , heat transfer , computer science , softening point , mechanics , algorithm , physics
SMA polymer modifiers for PVC, of the ELIX 300 type, increase the practical heat resistance of rigid PVC blends to > 100 C, allowing cost effective competition with high heat fire retardant engineering resins. The PVC/SMA blend technology, physical property characteristics, and fire retardant properties are presented. A definition of practical heat resistance and the correlation of practical heat resistance to Vicat heat resistance measurements are given with comparisons to competitive high heat fire retardant plastics. Current commercial application experience in rigid injection molding and profile extrusion is described which has confirmed the cost/performance advantage of PVC/SMA blends. Potential market opportunities for PVC/SMA blends will be presented for discussion.