BACKGROUND Although conversion of low value but high-volume lignin by-product to its usable form is one of the determinant factors for building an economically feasible integrated lignocellulose biorefinery, it has been challenged by its structural complexity and inhomogeneity. We and others have shown that uniform lignin nanoparticles can be produced from a wide range of technical lignins, des...

Carbon nanotubes (CNTs) are probably the strongest material ever known with outstanding mechanical, electrical and physical properties [1, 2]. It is postulated that by transferring these fabulous properties as reinforcements in inorganic matrices, a new class of nanocomposite to meet the requirement of advanced applications will be generated. Al2O3 ceramics have been widely used for structural,...

Ultrasonic vibration was employed in blending the nanosilica into epoxy resin to manufacture hemp/kevlar/nanosilica-based composites, with an ultrasonic occurrence of 20 kHz and a 900 W capacity power. An probe utilized ensure consistent dispersion nanoparticles epoxy. The mechanical characteristics hemp/kevlar fiber reinforced epoxy/nanosilica mat form have been studied. Hand layup procedures ...

In this research, using pyrolysis of phenolic resin in the presence of silicon particles, the SiC ceramic composite is formed. The samples were prepared by introducing 30, 35, 40, 45 and 50 wt% of Si particles to the phenolic resin. The samples were cured at 180°C then carbonized at 1100°C. The final carbonized C/Si composites are hot-pressed at 1500°C in inert atmosphere, which is more than th...

The aim of this study was to investigate the influence thermal treatment and ultrasound on activity β-glucosidase lipoxygenase, enzymes that determine phenolic composition sensory profile virgin olive oil. Enzyme determined spectrophotometrically in model systems consisting commercial their substrates. Thermal performed by tempering substrates at temperatures between 15 40 °C. measured 1 min af...