2020
DOI: 10.1002/app.50044
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Contribution of compatibilizer backbone to degradation and retained functionality of multiple extruded polypropylene/poly(ethylene terephthalate) blends

Abstract: This study assesses thermal and morphological stabilization of three compatibilizers during mechanical recycling of polymer blends. Polypropylene/poly(ethylene terephthalate) blends compatibilized with three different maleic anhydride grafted compatibilizers were extruded five times via single‐screw extrusion. The backbones of the compatibilizers are (1) polypropylene‐based, (2) an elastomer block copolymer poly(styrene‐co‐[ethylene‐butylene]‐styrene), and (3) a polyolefin elastomer. The degradation and retain… Show more

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Cited by 10 publications
(11 citation statements)
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“…In this case it suggest that the amorphous mobility of the PPgMAH blend is the lowest. This correlates with the DSC results from previous research 18 wherein the crystallinity was slightly higher due to the PP, which has a stiffer backbone than the elastomeric compatibilizers backbone and can co‐crystallize with the matrix if the chain lengths are sufficiently long. The binary blend has a slightly lower plateau height than PP‐PET‐PPgMAH.…”
Section: Resultssupporting
confidence: 89%
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“…In this case it suggest that the amorphous mobility of the PPgMAH blend is the lowest. This correlates with the DSC results from previous research 18 wherein the crystallinity was slightly higher due to the PP, which has a stiffer backbone than the elastomeric compatibilizers backbone and can co‐crystallize with the matrix if the chain lengths are sufficiently long. The binary blend has a slightly lower plateau height than PP‐PET‐PPgMAH.…”
Section: Resultssupporting
confidence: 89%
“…However, at the onset strains of the elastic plateau ( ε C ), it is expected that the deformed crystals under uniaxial stretching in the bulk of all phases have started to fibrillate and consequently become less dependent of the original morphology. This is valid if the dispersion of the blends was fine enough at the beginning, as shown in Reference 18.…”
Section: Resultsmentioning
confidence: 81%
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