Torsion modulus to hollow glass microsphere additives in unsaturated polyester resin: Dynamic and deformation energy methods
Carlos Alberto Fonzar Pintão,
Airton Baggio,
Rafael Turra Alarcon
et al.
Abstract:This paper presents two methods for deformation energy or dynamic for measuring and calculating the torsion modulus, G, for composites with hollow glass microsphere (HGM) additives in unsaturated polyester resin. First, we constructed a measurement system with a torsion pendulum, a force sensor (FS), and a rotational movement sensor (RMS). Then, we deduced a relationship between force (F) and torsion angle (θ) to obtain G by deformation energy. Second, using the relaxation curve, θ in function time (t), we ded… Show more
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