Different levels of NPK fertilizer were used to improve the growth, yield, and fiber morphology two kenaf varieties. Therefore, a field experiment was conducted in summer season 2021 at Grdarasha Field, College Agricultural Engineering Sciences, Salahaddin University-Erbil. The results revealed that adding rate 100 kg/ha caused improved growth yield characteristics includes; plant height, stem ...

A sequential solvent extraction scheme was employed for the extraction of antioxidant compounds from kenaf (Hibiscus cannabinus L.) seeds. Yield of extracts varied widely among the solvents and was the highest for hexane extract (16.6% based on dry weight basis), while water extract exhibited the highest total phenolic content (18.78 mg GAE/g extract), total flavonoid content (2.49 mg RE/g ext...

In this study, activated carbon was prepared from kenaf fiber (KF) by using physiochemical activation method consisting of potassium hydroxide (KOH) impregnation with carbon dioxide (CO2) gasification. Pore structure and physical characteristics of the prepared activated carbon were determined. Adsorption studies for divalent lead (Pb) were carried out to delineate the effect of contact time, t...

This study fabricated polylactic acid (PLA)/kenaf cellulose fiber biocomposite filaments via melt-extrusion process. Kenaf fibers (KF) were chemically extracted from locally grown kenaf plants and used as reinforcement. Moreover, the KF was then treated with tetraethyl orthosilicate (TEOS), so-called KFs, to improve compatibility between PLA matrix. Also, plasticizers (polyethylene glycol) inco...

In this research, quasi-static penetration and ballistic properties of non-woven kenaf fibres/Kevlar epoxy hybrid laminates with thicknesses ranging from 3.1 mm to 10.8 mm by hard projectile at normal incidence have been experimentally investigated. Hybrid composites were fabricated by hand lay-up technique in a mould and cured at room temperature for 24 h by static load. Hybrid composites cons...

The purpose of this study was to obtain the results impact testing on composite material with arrangement kenaf fibers in woven volume variations 0%, 10%, 20%, 30%, 40%, and 50%. value obtained from 0% fiber variation has an average energy absorption yield 1.730623009 J price 0.01273547 J/mm², 10% 1.468150063 is 0.01080396 20% 30% 1.214516698 0.008937499 40% 1.993095955 0.01466698 50% 2.2643285...

Natural fibres have emerged as the potential reinforcement material for composites and thus gain attraction by many researchers. This is mainly due to their applicable benefits as they offer low density, low cost, renewable, biodegradability and environmentally harmless and also comparable mechanical properties with synthetic fibre composites. The properties of hybrid composites highly depends ...

Abstract The development of hybrid composite materials using honeycomb structure, typically a lightweight material, is commonly used in aircraft structures. However, the use with natural or synthetic remains unexplored literature. Therefore, this study aims to partially replace fiber, woven glass fiber kenaf and core. An experimental analysis investigated mechanical strength three different com...

Natural fibers such as kenaf have been studied extensively as a reinforcing phase and received major attention recently due to their renewability, biodegradability, and high strength comparable to other synthetic fibers. In this study, nano-crystalline cellulose (NCC) was produced from kenaf core wood using the acid hydrolysis method. Kenaf core was alkali treated with a 4 wt% of sodium hydroxi...