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PET/R‐PP/PC blends by two‐stage reactive extrusion: effect of polypropylene reactively functionalized with an oxazoline group on morphology and mechanical properties
Author(s) -
Jeziórska Regina
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200106)170:1<21::aid-masy21>3.0.co;2-f
Subject(s) - reactive extrusion , differential scanning calorimetry , materials science , extrusion , polypropylene , scanning electron microscope , izod impact strength test , ultimate tensile strength , composite material , flexural strength , morphology (biology) , oxazoline , polymer blend , polymer , copolymer , chemistry , organic chemistry , physics , genetics , biology , thermodynamics , catalysis
A series of PET/R‐PP/PC blends was studied in a chemical modification involving reactive extrusion with a ricinyl‐2‐oxazoline maleinate. The interfacial reaction between blend components were studied by the differential scanning calorimetry (DSC) and the scanning electron microscopy (SEM). The static tensile and flexural properties, and impact resistance response of the blends were tested. The phase morphology of the blends was of interpenetrating network (IPN) type according to SEM results. The blends offer excellent mechanical properties and improved impact strength as an effect of chemical reactions on reactive extrusion, even if PET waste and low PC contents (below 20%) have been used.