Study the mechanical properties of polymer material and its applications

نوع المستند : المقالة الأصلية

المؤلفون

Lecturer in Physics department Ain Shams University, Faculty of Education, Bachelor's program in Science and Education (preparatory and secondary), EDU485-Physics_Private (credit hours 2020)

المستخلص

An array of water-soluble polymer blends composed of polyvinyl alcohol (PVA) and
polyethylene glycol (PEG) have been synthesized by the solution casting technique. The prepared
blends were tested using mechanical properties and DSC. The outcomes showed that adding
PEG affects the mechanical characteristics of PVA/PEG blends, and the ideal blend was one with
25 wt% of PEG loading, where the value of the percentage elongation at break (78%), Toughness
(0.44) and surface energy (0.076) reached the highest values at this blend. Meanwhile, Young's
modulus declined from 20.34 MPa for pure PVA to 7.07 MPa at 25 wt% PEG. The results of
DSC revealed that Tg decrease from 89.2 oC of PVA to 60.8 oC of 30wt.% PEG

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