In our work we studied composites of poly(lactic) acid (PLA) and low density polyethylene filled with cellulose fibres. The studied composite materials were manufactured with a twin-screw extruder. The extruded compound was processed in to samples using compression moulding. The content of cellulose in polymer/cellulose composites was varied. Effect of low amounts of cellulose on the rheological and tensile properties was studied. Tensile tests showed that the incorporation of cellulose into PLA matrix lead to stiffer but slightly more brittle and weaker materials, since Young's modulus increases and tensile strength and elongation at break slightly decrease. Mechanical results are in agreement with rheological behaviour: the composites exhibit the improvement in the storage and loss moduli of composites compared with that of matrix polymers. The composite dynamic viscosity increases with cellulose content in the same manner as loss and storage moduli. The processing and material properties of PLA/cellulose composites were compared to the more commonly used low-density-polyethylene/cellulose composites.http://dx.doi.org/10.5755/j01.ms.17.1.245

Electrospinning has recognized as the most versatile and adaptable method for the fabrication of nanofibers. Fiber scientists have extensively introduced original solutions for harvesting and storing energy from nanofibers in order to improve storage capacity and environmental impact of electrospun supercapacitors, anodes, and cathodes. Among these efforts, graphene gained significant interests for researchers, a multifaceted molecule possessing many unique and desirable properties such as high strength, flexibility, optical transparency, and conductivity. This makes graphene as superior as to many other nanomaterials like carbon nanotubes (CNTs) and conductive nanometallic particles. The reported properties and applications of this two-dimensional (2D) structure have opened up new opportunities for the lightweight future devices and systems. This review article aims to present an overview of the advancements in graphene-based electrospun conductive nanofibers, supercapacitors, and graphene-based electrospun anodes and cathodes for lithium-ion (Li-ion) batteries. Details of the electrospinning processes, reduction methods, and electrical properties are discussed to yield insights on how significant improvements can be made in future developments.