Wood-lignin: Supply, extraction processes and use as bio-based material
نویسندگان
چکیده
منابع مشابه
Lignin‐Retaining Transparent Wood
Optically transparent wood, combining optical and mechanical performance, is an emerging new material for light-transmitting structures in buildings with the aim of reducing energy consumption. One of the main obstacles for transparent wood fabrication is delignification, where around 30 wt % of wood tissue is removed to reduce light absorption and refractive index mismatch. This step is time c...
متن کاملtask-based instruction, consciousness-raising and iranian efl learners acquisition and use of collocation
the present study sought to examine whether a task-based approach could have an impact on raising awareness of collocations. moreover, it sought to investigate the facilitative role of consciousness-raising tasks of collocations in the communicative instances of use. to this end, 68 intermediate learners of english were selected via a placement test. the participants were taught with classroom ...
15 صفحه اولDemonstration of laccase-based removal of lignin from wood and non-wood plant feedstocks.
The ability of Trametes villosa laccase, in conjuction with 1-hydroxybenzotriazole (HBT) as mediator and alkaline extraction, to remove lignin was demonstrated during treatment of wood (Eucalyptus globulus) and non-wood (Pennisetum purpureum) feedstocks. At 50 Ug(-1) laccase and 2.5% HBT concentration, 48% and 32% of the Eucalyptus and Pennisetum lignin were removed, respectively. Two-dimension...
متن کاملLignin valorization: lignin nanoparticles as high-value bio-additive for multifunctional nanocomposites
BACKGROUND Although conversion of low value but high-volume lignin by-product to its usable form is one of the determinant factors for building an economically feasible integrated lignocellulose biorefinery, it has been challenged by its structural complexity and inhomogeneity. We and others have shown that uniform lignin nanoparticles can be produced from a wide range of technical lignins, des...
متن کاملAlkali-O2 oxidized lignin – A bio-based concrete plasticizer
Commercial wheat straw soda lignin was used to develop an alkali-O2 oxidation method to produce a ready-to-use solution for concrete plasticizing (cement dispersing). Lignin characterization was done directly from the solution. Depending on conditions, oxidation primarily induced either condensation or degradation of lignin. Thus, both the negative charge and the molar mass of the lignin were c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: European Polymer Journal
سال: 2019
ISSN: 0014-3057
DOI: 10.1016/j.eurpolymj.2019.01.007