This study compared oxidative delignification of birch kraft pulp fibers to from acid hydrotropic fractionation (AHF) using p-toluenesulfonic (p-TsOH). Under oxygen at 20% consistency, AHF pulps with lower hemicellulose content showed higher than similar lignin despite its residual (cellulosic enzymatic lignin, CEL) being less reactive fewer ?-O-4 ether aryl linkages based on 2D13C-1H nuclear m...

The focus of this work was to investigate the cellulose acetate (CA)–viscose (CV) interface in an all-cellulosic compound and evaluate feasibility hydrophobic CA-coatings on viscose fibers. Mechanical strengths foil-CA compounds were investigated by recoding stress-to-strain curves. For equivalent strain, composites generate higher stress than pure CA samples. coating CV fibers, fibers pretreat...

Pulp fibers have a strong tendency to form flocs in water suspensions, which may cause their undesirable distribution in the paper sheets. This flocculation can be controlled by adding, e.g., an anionic high molecular weight polyelectrolyte in the fiber suspension. The objective of this study was to investigate the effect of anionic polyelectrolytes on deflocculation kinetics, dewatering, and r...

The roles of non-cellulosic polysaccharides in cotton fiber development are poorly understood. Combining glycan microarrays and in situ analyses with monoclonal antibodies, polysaccharide linkage analyses and transcript profiling, the occurrence of heteromannan and heteroxylan polysaccharides and related genes in developing and mature cotton (Gossypium spp.) fibers has been determined. Comparat...

Cellulosic fibers were extracted from the pseudo-stem of Musa sapientum cultivated in two different sites Cameroon. The FBY (Yaounde Banana Fibers) and FBP (Penja studied this work obtained by a bio-extraction method characterized. apparent densities 0.90 ± 0.02 g/cm3 1.03 0.04 g/cm3, while moisture contents 10.6 0.2% 12.4 0.3%, respectively. Their chemical compositions as follows: extracts 15....

Effective conversion of lignocellulosic material as renewable energy source has significant reflection on economic and environmental impact. Diluted acid hydrolysis at optimal condition was used to liberate fermentable sugar. The sorghum stalks, the alkali pretreatment of biomass and hydrolysis in diluted hydrochloric acid were investigated. The hydrolysis reaction was carried out in a 5L react...

Abstract Cellulose, a natural, renewable, and environment friendly biopolymer, has been considered as sustainable feedstock in the near future. However, only 0.3% of cellulose is today processed since it not soluble conventional solvents due to strong hydrogen bonding network highly ordered structure. Hence, search effective eco-friendly for dissolution key pillar decades. In recent years, ioni...