Natural fiber electrical properties

Additives. There are many types of additives used by the papermaker to modify the physical and optical properties of the sheet. The most commonly used include kaolin and titanium dioxide for optical properties, starch for strength and rosin sizes for water repellency. All these materials can affect the electrical properties of the paper since they can eventually modify the nature of the interfiber contact as well as the fiber itself. These changes can influence the flow of charge through the sheet. 

Naik JB, Mishra S (2005) Studies on electrical properties of natural fiber, HDPE composites. Polym Plast Technol Eng 44 687-693... 

Paul A et al (1997) Electrical properties of natural fiber reinforced low-density polyethylene composites a comparison with carbon black and glass fiber filled low-density polyethylene composites. J Appl Polym Sci 63 247-266... 

Niak and Mishra [111] studied the electrical properties of natural fiber high-density polyethylene composites. 

The nature of the carbon used as an electronic conductor may vary carbon black from different sources with particle size distributions (PSDs) of 30-40 nm and specific surface areas of 100-2,000 mVg (BET surface), activated carbons, carbon fibers or indeed carbon nanotubes (CNTs). The type of carbon, its morphology and its mode of dispersion or coating play a part in the resulting electrical properties of the electrode. For instance, carbon fibers or CNTs improve the electronic conductivity of thick electrodes, because their high shape factor enables them to form a good electronic percolation lattice.In the presence of CNTs, a capacity of 900 mAh/gs in the first cycle and 75% retention of capacity after 60 cycles (with a charge/discharge current density of 100 mA/g and 68% sulfur in the... 

Physical methods for treating natural fibers before biocomposite processing involve electrical discharges such as cold plasma and corona, electron beam irradiation, ultraviolet (UV) treatment, and ultrasonic treatment,. Such physical approaches are of great interest because, in general, the processes are dry, clean, labor-friendly, environment-friendly, and fast in comparison with most of the chemical methods, which are wet processes. Under appropriate treatment conditions, they can effectively modify structural and surface characteristics of natural fibers, thereby improving the mechanical and thermal properties of biocomposites as well as enhancing the interfacial adhesion between the natural fibers and the polymer matrix. 

---