Results 51 to 60 of about 9,977 (226)
Some factors affecting the brightness and TCF-bleachability of kraft pulp [PDF]
, 2003 By varying the cooking conditions, several series of kraft pulps having different brightness levels, i.e. different light absorption coefficients (k), were prepared.
Al-Dajani, W. W., Gellerstedt, Göran,
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Chemistry of Kraft Pulping and Pulp Bleaching
JAPAN TAPPI JOURNAL, 2000 Chemistry of kraft pulp production was summarized from considering recent environmental plans. Levels of dioxins and chloroform emission in regulations were shown first, and then chemical feature of lignin, reactions of lignin and carbohydrates during kraft pulping, structure of residual lignin in pulp, reactions of chlorine and chlorinated chemicals ...
openaire +2 more sources
Advanced Materials, EarlyView.As‐spun carbon materials produced from Lignosulfonate, gelatin, and alginate, selected for water solubility, and ability to produce templated sustainable carbon nanostructures. Gelatin and alginate are sacrificial during thermal processing, allowing the production of engineered high surface area nanostructures, which are further characterized for ...
Judith Miralda‐Jalle +6 more
wiley +1 more source
Modelagem e simulação da polpação kraft antraquinona [PDF]
, 2000 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Química.Em indústrias de celulose, o processo dominante é a polpação Kraft.
Georg, Ivan Carlos
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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
Aumento da eficiência do processo kraft de polpação a partir de pré-tratamento de cavacos de madeira de eucalipto [PDF]
, 2015 Tese (doutorado) - Universidade de São Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, 2015.O presente estudo teve por objetivo avaliar a eficiência da extração de lignina de cavacos da madeira de Eucalyptus grandis x Eucalyptus ...
Vivian, Magnos Alan
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Improved pulp yield and strength by retained glucomannans in kraft pulping of softwood [PDF]
, 2015 The possibilities of improving yield and strength properties of softwood bleached kraft pulps by retaining a higher content of glucomannan during kraft cooking using additives that decrease the rate of carbohydrate degradation were looked upon.
Salmen, Lennart +2 more
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Triboelectric nanogenerators for vehicle intelligent cockpits
FlexMat, EarlyView.Converting mechanical stimuli from drivers and vehicle motion into electrical signals, triboelectric nanogenerators provide promising interfaces toward passive, flexible, distributed and intelligent sensing for next‐generation automotive cockpits to support three core functional dimensions: driver state monitoring, vehicle state monitoring, and human ...
Haiqiu Tan +9 more
wiley +1 more source
Influence of kraft pulp production conditions on kraft pulp fiber curl [PDF]
, 2002 Diplomityön tarkoituksena oli selvittää kuitujen kihartuvuuden profiili koivu- ja havusellulinjalla prosessivaiheiden suhteen. Profiilin perusteella pyrittiin selvittämään kuitulinjojen prosessista kuitujen kiharuuteen voimakkaimmin vaikuttavia tekijöitä.
Karvinen, Tero
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Assessment of Q(OP)D(PO) bleachability of softwood kraft pulp [PDF]
, 2021 Bleachability is evaluated as how easily a pulp sample is bleached and it depends on the structure of residual lignin and carbohydrates. Also, the bleachability varies depending on the bleaching sequence.
Starrsjö, Sara, +4 more
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