Journal ArticleDOI
Compatibilization of polyethylene terephthalate/polypropylene blends with styrene–ethylene/butylene–styrene (SEBS) block copolymers
Reads0
Chats0
TLDR
In this paper, the effect of the compatibilizers on morphology and mechanical, thermal and rheological properties of polyethylene terephthalate (PET) and polypropylene (PP) blends was evaluated.Abstract:
Blends of polyethylene terephthalate (PET) and polypropylene (PP) at compositions 20/80 and 80/20 were modified with three different styrene–ethylene/butyl–ene-styrene (SEBS) triblock copolymers with the aim of improving the compatibility and in particular the toughness of the blends. The compatibilizers involved an unfunctionalized SEBS and two functionalized grades containing either maleic anhydride (SEBS-g-MAH) or glycidyl methacrylate (SEBS-g-GMA) grafted to the midblock. The effects of the compatibilizers were evaluated by studies on morphology and mechanical, thermal and rheological properties of the blends. The additon of 5 wt % of a SEBS copolymer was found to stabilize the blend morphology and to improve the impact strength. The effect was, however, far more pronounced with the functionalized copolymers. Particularly high toughness combined with rather high stiffness was achieved with SEBS-g-GMA for the PET-rich composition. Addition of the functionalized SEBS copolymers resulted in a finer dispersion of the minor phase and clearly improved interfacial adhesion. Shifts in the glass transition temperature of the PET phase and increase in the melt viscosity of the compatibilized blends indicated enhanced interactions between the discrete PET and PP phases induced by the functionalized compatibilizer, in particular SEBS-g-GMA. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 65:241–249, 1997read more
Citations
More filters
Journal ArticleDOI
Rheological and electrical properties of polypropylene composites containing functionalized multi-walled carbon nanotubes and compatibilizers
TL;DR: In this article, the effect of dispersion and interfacial interaction on the morphological, rheological, and electrical properties of the composite was evaluated using a twin-screw extruder.
Journal ArticleDOI
Comparison of compatibilizer effectiveness for PET/PP blends: their mechanical, thermal and morphology characterization
C.P. Papadopoulou,N.K. Kalfoglou +1 more
TL;DR: In this paper, the compatibilizing efficiency for PET/PP blends was examined using tensile testing, dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and scanning electron microscopy of crycrofractured surfaces before and after etching.
Journal ArticleDOI
Influence of coalescence and interfacial tension on the morphology of PP/HDPE compatibilized blends
TL;DR: In this article, the morphological and interfacial tension analysis of polypropylene (PP)/high-density polyethylene (HDPE) blend was studied through morphological analysis.
Journal ArticleDOI
Effects of a compatibilizing agent on the morphology, interface and mechanical behaviour of polypropylene/poly(ethylene terephthalate) blends
TL;DR: In this paper, three maleic anhydride-grafted-polypropylene (PP) derivatives were prepared by melt grafting and utilized to compatibilize polypropylene/poly(ethylene terephthalate) (PP/PET) blends.
Journal ArticleDOI
Recycled polypropylene blends as novel 3D printing materials
TL;DR: In this article, the effect of blend composition and styrene ethylene butylene styrene (SEBS) compatibilizer on the resulting mechanical and thermal properties were probed.
Related Papers (5)
Comparison of compatibilizer effectiveness for PET/PP blends: their mechanical, thermal and morphology characterization
C.P. Papadopoulou,N.K. Kalfoglou +1 more