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Heat distortion temperature modification of rigid PVC and chlorinated PVC: A method to produce low smoke compositions
Author(s) -
Termine Enrico J.
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.730120405
Subject(s) - oligomer , tetrabromobisphenol a , flammability , materials science , heat deflection temperature , chlorinated polyvinyl chloride , carbonate , vinyl chloride , bisphenol a , smoke , composite material , chemical engineering , polyvinyl chloride , polymer chemistry , polymer , organic chemistry , chemistry , izod impact strength test , fire retardant , copolymer , epoxy , metallurgy , ultimate tensile strength , engineering
The use of a new low smoke, heat distortion temperature modifier for rigid PVC and chlorinated PVC is discussed. This material, CN‐1427, is a tetrabromobisphenol A carbonate oligomer which is compatible with vinyl compositions. The carbonate oligomer can be compounded into PVC resin to improve heat distortion temperature of PVC and CPVC by 20–30°C. Unlike conventional HDT modifiers, brominated carbonate oligomers do not increase smoke evolution during flammability testing. Thus, using carbonate oligomer technology, it is possible to achieve low smoke, Class I (ASTM E‐84) and V‐O flammability (UL‐94) performance. Vinyl compositions, modified with the carbonate oligomer described in this work, can be utilized as an alternative to expensive engineering thermoplastics. This paper reports recent studies on the use of carbonate oligomers as heat distortion temperature modifiers for low smoke vinyl applications. Formulation information addressing flammability and physical property performance is presented in detail.