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Perez, Javier
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Publications (5/5 displayed)
- 2023Deformation mechanisms in PBT at elevated temperaturescitations
- 2022Adsorption of poly(methacrylic acid) onto differently charged silica nanoparticles and its consequences on particles clusteringcitations
- 2019Monitoring food structure during digestion using small-angle scattering and imaging techniquescitations
- 2012Effects of Nitrogen Fertilization on the Yield and Quality of Rye Biomass
- 2010Homogeneous Dispersion of Magnetic Nanoparticles Aggregates in a PS Nanocomposite: Highly Reproducible Hierarchical Structure Tuned by the Nanoparticles' Sizecitations
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article
Deformation mechanisms in PBT at elevated temperatures
Abstract
The plastic deformation of Polybutylene terephthalate (PBT) is investigated at three temperatures (120°C, 150°C, 180°C) representative of the span between glass transition, Tg ≈ 55°C and melting Tm ≈ 225°C temperatures. The mechanisms of tensile deformation are analyzed as a function of the true strain using a combination of temperature-controlled tensile experiments coupled with 2D digital image correlation and synchrotron sourced wide angle (WAXS) and small angle (SAXS) X-ray scattering the amorphous and crystalline regions causing the transition between polymorphs, respectively from the isotropic amorphous phase to a smectic phase and from the alpha to beta crystalline phase.