Variations in the Thermomechanical and Structural Properties during the Cooling of Shape-Memory R-PETG
Ștefan-Dumitru Sava,
Bogdan Pricop,
Radu-Ioachim Comăneci
et al.
Abstract:One of the useful features of 3D-printed specimens of recycled polyethylene terephthalate glycol (R-PETG) is the ability to repetitively develop free recovery as well as the work-generating, shape-memory effect. This behavior is enabled by the R-PETG’s capacity to stiffen during cooling, thus allowing for a new temporary shape to be induced. Aiming to devise an explanation for the polymer’s stiffening, in this study, the variation in some of the R-PETG’s parameters during cooling are emphasized and discussed. … Show more
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