Polypropylene/postconsumer recycled poly(ethylene terephthalate) hybrid composites: evaluation of morphological, mechanical, thermal and electrical properties

Ekinci, Aysun; Öksüz, Mustafa; Ateş, Murat; Aydın, İsmail

doi:10.1007/s13726-022-01076-2

Cited by 3 publications

(1 citation statement)

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“…Among the petroleum-based polymers, polyethylene terephthalate (PET) receives great attention and interest in recent years, since it can be relatively easy recycled. [39][40][41][42][43][44] Melt compounding of recycled polyethylene terephthalate (RPET) with various polymers have been explored to overcome loss of mechanical properties and molecular weight of recycled PET, including polyethylene, 45 polypropylene, 46 and so forth. Polypropylene (PP) has been widely used in this case due to its low density, good surface hardness, good abrasion resistance, and excellent electrical properties.…”

Section: Introductionmentioning

confidence: 99%

Development of sustainable cellulose‐based composite of polypropylene reinforced by recycled microfibrillar poly (ethylene terephthalate)

Khamseh,

Maroufkhani,

Moghanlou

et al. 2023

Polymer Composites

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Sustainable composites based on blends from polypropylene (PP) and recycled polyethylene terephthalate (RPET) and wood flour (WF) were prepared under industry‐relevant conditions by melt extrusion, followed by continuous drawing through spinnerets. Maleic anhydride grafted polypropylene (PP‐g‐MA) was employed to improve the compatibility between matrix and WF. The effects of incorporation of WF and RPET microstructure on the morphological features, rheological measurements, and mechanical properties were investigated. The drawing process converted elliptical RPET phase into highly oriented microfibrillar structure, as characterized by means of scanning electron microscopy (SEM). The highly oriented blend (HOB) represented nonterminal behavior due to the presence of physical networks and enhanced surface area of microfibers for chemical interactions. The tensile strength of neat PP increased by the addition of WF and the existence of microfibrillar RPET phase, whereas the microstructure of RPET had more pronounce effect. The tensile strength and elastic modulus of PP reinforced by WF and oriented RPET improved by 65% and 92%, respectively, demonstrating the high potential of this environmental‐friendly reinforcement method to intensify the mechanical properties of PP.

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