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Analysis and modeling of PVTX diagram of an unsaturated polyester resin, thermoplastic additive, and mineral fillers blend
Author(s) -
Boyard N.,
Vayer M.,
Sinturel C.,
Erre R.,
Delaunay D.
Publication year - 2003
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.11830
Subject(s) - dilatometer , materials science , composite material , curing (chemistry) , shrinkage , thermoplastic , polyester , volume (thermodynamics) , prepolymer , thermal expansion , polyurethane , thermodynamics , physics
Abstract We studied the dynamic curing of a polymer blend containing an unsaturated polyester prepolymer, styrene, and a saturated polyester as a low‐profile thermoplastic additive during heating from 40 to 160°C with a constant rate (4 or 10 K/min). This work was performed by means of a homemade dilatometer that simultaneously determined conversion degree, volume, pressure, and temperature. The various phenomena inducing volume change were identified and then separated (thermal expansion, shrinkage, and shrinkage compensation). A model based on physical consideration was built that allowed an accurate fit of the experimental results. The influence of the pressure on all this phenomena was summarized and quantified. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 1258–1267, 2003