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Influence of the amorphous phase molecular mobility on impact and tensile properties of polyamide 6,6
Author(s) -
Rios de Anda Agustín,
Fillot LouiseAnne,
Long Didier R.,
Sotta Paul
Publication year - 2016
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.43457
Subject(s) - charpy impact test , polyamide , glass transition , materials science , amorphous solid , ultimate tensile strength , composite material , izod impact strength test , relaxation (psychology) , phase (matter) , brittleness , phase transition , polymer chemistry , polymer , thermodynamics , chemistry , organic chemistry , psychology , social psychology , physics
In this work, the relationship between molecular mobility of polyamide 6,6 amorphous phase and mechanical properties is studied. PA66 formulations having different glass transition temperatures ( T g ) obtained by additivation, chemical modification of the polyamide chains, and/or water conditioning at different hygrometry levels, are considered. The main emphasis is put on the impact strength, as measured by instrumented Charpy impact tests over a broad temperature range. It is observed that the brittle‐tough transition temperature T B/T is closely correlated with the T g of the samples rather than to the β secondary relaxation. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43457.
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