Results 61 to 70 of about 35,476 (250)
Ultrastructural characterization (morphological and topochemical) of wood pulp fibres [PDF]
, 2007 Different electron microscopy techniques including SEM (scanning electron microscopy), FE-SEM (field emission-scanning electron microscopy), TEM (transmission electron microscopy) and Immuno-gold TEM (immuno-gold transmission electron microscopy) were ...
Fernando, Dinesh
core
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Microwave‐assisted polyol synthesis in continuous flow produces metallic Cu nanoparticles, using ethylene glycol as solvent and reducing agent, lignin to stabilize the colloid and prevent oxidation, and metal‐seeds for particle size control. Metallic copper nanoparticles are a promising alternative to gold and silver in printed electronics due to their
Antonio Santana‐Otero +6 more
wiley +1 more source
Sulfuric acid bleaching of kraft pulp 1: Bleaching of hardwood and softwood kraft pulps
Journal of Wood Science, 1999 To develop a new nonchlorine bleaching technology, hardwood and softwood kraft pulps, before and after oxygen-alkali predelignification, were treated with dilute sulfuric acid solutions (pH 1.0-1.8) at 100°C for 1 h and then extracted with aqueous sodium hydroxide at 70°C for l h. Hardwood kraft pulp was successfully bleached.
Tsutomu Ikeda +4 more
openaire +1 more source
Process for purification of waste water produced by a Kraft process pulp and paper mill [PDF]
, 1979 The water from paper and pulp wastes obtained from a mill using the Kraft process is purified by precipitating lignins and lignin derivatives from the waste stream with quaternary ammonium compounds, removing other impurities by activated carbon produced
Humphrey, M. F.
core +1 more source
Nanolignin Functional Separators for Flexible Lithium–Sulfur Batteries With Enhanced Performance
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Nanolignin‐functionalized separators, incorporating lignin nanoparticles into a crosslinked PEGDA coating applied on commercial separators, reduce polysulfide shuttling, thereby enhancing cycling performance in flexible lithium–sulfur pouch cells, while also improving thermo‐oxidative stability and flame retardancy.
Emanuela Bellinetto +7 more
wiley +1 more source
The Effects of Fiber Furnish on Physical Properties of Paper [PDF]
, 1975 This experiment was designed to determine the effects of fiber furnish on the physical properties of paper. To do this various pulps and combinations of these pulps were formed into handsheets and their physical properties determined. The tests performed
Havard, Dennis
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A scalable dual‐functional strategy yields simultaneously sulfonated and nanosized cellulose for proton exchange membranes with continuous hydrogen‐bond networks. These sustainable membranes exhibit low‐humidity proton conductivity twofold higher than Nafion 212, providing a robust solution for next‐generation fuel cells.
Nan Li +6 more
wiley +1 more source
Full Sequence Bleaching with Dimethyldioxirane [PDF]
, 1995 Research work to date has shown dimethyldioxirane to be a very powerful, yet highly selective oxidant. Dimethyldioxirane bleaching may become more important in the future with legislative restrictions on chlorine based bleaching agents as it contains no ...
Krueger, Daniel
core +1 more source
Energy Science &Engineering, EarlyView.Fractionation of yellow thatching grass using sodium hydroxide and deep eutectic solvent Carboxylated Cellulose nanocrystals (CNCs) were successfully synthesized via hydrolysis with 80 wt% citric acid at 120°C for 4 h Variations in CNC characteristics were observed based on the fractionation method used ABSTRACT Grass is an abundant and renewable ...
Fildah Ayaa +4 more
wiley +1 more source
Revista Árvore, 2005 Foram analisados clones de Eucalyptus de última geração, pertencentes às principais empresas brasileiras de celulose. Os estudos consistiram numa caracterização tecnológica detalhada da qualidade das madeiras utilizadas no processamento fabril das ...
José Lívio Gomide +3 more
doaj +1 more source