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Study of the influence of plasticizers on the thermal and mechanical properties of poly(3‐hydroxybutyrate) compounds
Author(s) -
Baltieri Rodrigo Cirillo,
Innocentini Mei Lucia H.,
Bartoli Julio
Publication year - 2003
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200350704
Subject(s) - plasticizer , adipate , crystallinity , materials science , phthalate , ultimate tensile strength , elongation , polymer , glycerol , polyester , chemical engineering , composite material , polymer chemistry , chemistry , organic chemistry , engineering
The influence of four types of plasticizers, dioctyl phthalate (DOP), dioctyl adipate (DOA), triacetyl glycerol (TAG) and polyadipate (PA), in the thermal and mechanical properties of Poly(3‐hydroxybutyrate) (PHB), a highly crystalline biodegradable polyester, was evaluated in this work. The plasticizers were introduced alone or mixtures of them, using concentrations that varied from 5 to 30% wt. Their influence in some important polymer parameters as Tg, Tm and degree of crystallinity, and on its mechanical behavior, elongation and tensile strain were investigated. The best results were obtained for the sample with 30% TAG and that one using a binary mixture of plasticizers PA 20% and TAG 10%.