Viscoelastic Characterization of Aliphatic Polyurethane Interlayers
作者： Neil MacAloney , Andres Bujanda , Robert Jensen , Nakhiah Goulbourne
DOI:
关键词: Dynamic mechanical analysis 、 Materials science 、 Poisson's ratio 、 Rheometer 、 Shear modulus 、 Composite material 、 Lateral strain 、 Viscoelasticity 、 Rheometry 、 Digital image correlation
摘要: Abstract : The viscoelastic properties of several commercially available aliphatic thermoplastic polyurethanes were characterized. Differential scanning calorimetry showed that for Deerfield 4700, Inter Materials IM 800, 800A, 1600, and 2500, there is a permanent physical change occurs during heating. Dynamic mechanical analysis shear rheometry used to generate elastic modulus master curves in the frequency domain 800 A. Williams-Landel-Ferry constants Prony coefficients extracted from these curves. Quasi-static determined tensile tests on dog bone samples compression cylindrical samples. Visual image correlation was determine Poisson's ratio by simultaneously capturing longitudinal lateral strain.
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