Dodecenyl succinic???cyclodextrin with high degree of substitution: Synthesis, characterization and evaluation

This article compares the mechanical, thermal, tribological, and flammability properties of polybutylene terephthalate composites based on synthetic wollastonite nanofibers, natural wollastonite and graphene oxide. Synthetic wollastonite nanofibers demonstrated excellent load?bearing ability, while graphene oxide exhibited excellent lubricating ability.AbstractPolybutylene terephthalate (PBT) composites were prepared with 1.0 phr synthetic wollastonite nanofibers (SWN), natural wollastonite (NW) and graphene oxide (GO) to study the effect of different fillers on mechanical, thermal, tribological, and flammability properties. The properties of PBT composites are related to the size, structure, and interfacial adhesion of the fillers in PBT matrix. PBT/SWN demonstrated the highest tensile strength and Young's modulus (6% and 9% increment), followed by PBT/NW (1.3% and 7% increment) and PBT/GO (2% decrement and 4% increment). PBT/SWN gave the highest degradation temperature (409°C), followed by PBT/GO (404.7°C). The maximum enhancement in wear resistance (73%) by PBT/SWN and anti?friction performance (26%) by PBT/GO evinced the excellent load?bearing ability of SWN and the great lubricating effect of GO. PBT/NW had the lowest peak heat release rate, smoke, and carbon dioxide production rate. This study shows that PBT composites have great potential in different automotive applications.

» Publication Date: 28/11/2022

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This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737


                   




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