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A thermostable laccase from Thermus sp. 2.9 and its potential for delignifcation of Eucalyptus biomass
(2019-04-02)
Laccases are multicopper oxidases that are being studied for their potential application in pretreatment strategies of lignocellulosic feedstocks for bioethanol production. Here, we report the expression and characterization ...
Estudio experimental de la hidroximetilación del lignosulfonato de sodio proveniente de Eucalyptus grandis destinado a la modificación de resoles
(2015-10-20)
Las ligninas son polímeros naturales renovables que provienen en su mayoría de desechos de la industria papelera. Debido a sus características estructurales similares al fenol (derivado del petróleo, de importación en ...
Effect of Kraft Lignin from Hardwood on Viscoelastic, Thermal, Mechanical and Aging Performance of High Pressure Laminates.
(Waste and Biomass Valorization, 2017-07-10)
In this work, the synthesis and characterization
of phenol-formaldehyde resols modified with 10, 20 and
30 wt% of Kraft lignin (a waste from pulp industry) from
hardwood were studied. In all cases, the Kraft lignin ...
Propiedades viscoelásticas de laminados basados en resinas de fenol-formaldehído modificadas con lignina del tipo Kraft
(2015-10-20)
Las resinas de fenol-formaldehído son ampliamente utilizadas en la obtención de laminados
decorativos. El alto costo y la toxicidad del fenol empleado en la formulación de resinas fenólicas
incentiva la búsqueda de nuevas ...
Hydroxymethylation of technical lignins from south-american sources with potential use in phenolic resins.
(2019-02-16)
This work investigates the valorization of sodium lignosulfonate, kraft, and organosolv lignins from South America. A detailed characterization of the lignins and their chemical modification by hydroxymethylation, a reaction ...
Microparticles based on ionic and organosolv lignins for the controlled release of atrazine
(Journal of Hazaourdos Materials, 2018-07-02)
Lignins are natural polymers of the lignocellulosic biomass. Nowadays, there is a growing interest in developing value-added products based on lignins due to their renewability, low cost and abundance. In this work, ...
Mechanical evaluation of laminates based on phenolic resins using lignins as partial substitutes for phenol
(Bioresources, 2015-10-28)
Reducing the consumption of phenol during synthesis of phenolic resins is of great technological and scientific interest because of its economic and environmental implications. In this work, the use of hydroxymethylated ...
Synthesis and mechanical properties of laminates based on phenolic resins modified with sodium lignosulfonate.
(Latin American Applied Research, 2017-05-08)
The reduction of phenol and/or formalde-hyde consumption during phenolic resin synthesis is of great technological and scientific interest because of its economic and environmental implications.
In this work, the addition ...
Empleo de Macropartículas de quitosano entrecruzadas con TPP como refuerzo en resinas epoxi basadas en DGEBA
(Secyt UTN Facultad Regional San Francisco, 2019-10)
Las resinas epoxi son materiales poliméricos, que presentan en su estructura uno o más anillos conocidos como epoxi, epóxido, u oxirano. Más del 75% del volumen de ventas de resinas epoxi corresponde a las derivadas ...
Technical lignins modified by hydroxymethylation for the production of decorative laminates: Synthesis, characterization and mathematical modelling
(2017-03)
Technical lignins are natural and renewable poly-phenolic polymers obtained mainly as a subproduct from the pulp industry. It presents a complex structure that depends on the wood type and the pulping process adopted to ...