Compatibilization of Polyethylene and Polypropylene <i>via</i> Dynamic Cross-Linking
Shenyan Zou, Dapeng Li, Wenbin Wang, Shite Li, Shijun Long, Yiwan Huang, Xuefeng Li
Abstract
Despite similar hydrocarbon compositions, polyethylene (PE) and polypropylene (PP) are mutually immiscible, posing challenges to their recycling. Consequently, significant research efforts have been made on PE/PP compatibilization. In this study, we transformed physical blends of PE and PP into dynamic covalent polymer networks by taking advantage of reversible boronate ester bonds. The dynamically cross-linked network “welds” PE and PP phases together, enabling PE–PP interfacial compatibilization through morphological control and converting the otherwise brittle PE and PP blend into a tough PE/PP hybrid plastic.
Topics & Concepts
CompatibilizationPolypropylenePolyethyleneMaterials scienceBrittlenessComposite materialPolymer blendPolymerPolymer sciencePolymer chemistryCovalent bondDynamic mechanical analysisPolyethylene terephthalateCopolymerPhase (matter)Izod impact strength testChemical engineeringNanocompositePolymer composites and self-healingPolymer crystallization and propertiesPolymer Nanocomposites and Properties