Abstract
This paper investigates the utilization of commercial masterbatches of graphene nanoplatelets to improve the properties of neat polymer and wood fiber composites manufactured by conventional processing methods. The effect of aspect ratio of the graphene platelets (represented by the different number of layers in the nanoplatelet) on the properties of high-density polyethylene (HDPE) is discussed. The composites were characterized for their mechanical properties (tensile, flexural, impact) and physical characteristics (morphology, crystallization, and thermal stability). The effect of the addition of nanoplatelets on the thermal conductivity and diffusivity of the reinforced polymer with different contents of reinforcement was also investigated. In general, the mechanical performance of the polymer was enhanced at the presence of either of the reinforcements (graphene or wood fiber). The improvement in mechanical properties of the nanocomposite was notable considering that no compatibilizer was used in the manufacturing. The use of a masterbatch can promote utilization of nano-modified polymer composites on an industrial scale without modification of the currently employed processing methods and facilities.
Highlights
The growing awareness of the environment and the demands for increasing the sustainability in resources and industries have urged the development of bio-based materials for use beyond their structural applications
The application of graphene nanoplatelet (GNPs) in composites is foreseen to grow between 2018 and 2025 by about 40% as it is being increasingly researched for composite-utilizing industries, such as construction, aerospace, and automotive sectors [4,5]
Thermoplastic of high-density polyethylene (MG9647S) in the form of pellets was purchased from BOREALIS AG (Vienna, Austria)
Summary
The growing awareness of the environment and the demands for increasing the sustainability in resources and industries have urged the development of bio-based materials for use beyond their structural applications. Production of bio-based materials such as wood polymer composites (WPCs) with added functionalities (e.g., thermal or electrical conductivities) can partially answer these demands. This can be made possible by profiting from the advances in the research and technology of nanomaterials. The application of graphene nanoplatelet (GNPs) in composites is foreseen to grow between 2018 and 2025 by about 40% as it is being increasingly researched for composite-utilizing industries, such as construction, aerospace, and automotive sectors [4,5]. Available studies have shown the potential of modifying wood composites with nano-reinforcement to improve properties making them candidates for advanced construction applications [6,7]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
