Results 71 to 80 of about 2,158 (213)

Bio‐Based Polyurethanes: Mechanical Performance, Structure–Property Relationships, and Future Directions

open access: yesJournal of Polymer Science, Volume 64, Issue 9, Page 1860-1894, 1 May 2026.
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba   +4 more
wiley   +1 more source

THE PROPERTIES KRAFT PULP SENGON WOOD (Paraserianthes falcataria):Differences Of Cooking Liquor Concentration and Bleaching Sequence [PDF]

open access: yes, 2011
The research was to investigate the difference effect of cooking liquor concentration and bleaching sequence on the properties Kraft pulp sengon wood (Paraserianthes falcataria).
Risanto, Lucky; UPT Biomaterial LIPI-Cibinong Jln. Raya Bogor KM 46 Cibinong Bogor 16911   +1 more
core   +2 more sources

Efeito do teor de lignina da madeira de Eucalyptus globulus Labill. no desempenho da polpação kraft

open access: yesCiência Florestal, 2011
In this research, it was analyzed the lignin content effect of Eucalyptus globulus Labill. wood in kraft pulping optimization. Seventy-two laboratory cooking were made with wood chips obtained from six Eucalyptus globulus trees selected from a group of ...
Gabriel Valim Cardoso   +5 more
doaj  

Application of Alkaline Ionic Liquids in the Pretreatment Process of Eucalyptus Kraft Pulping

open access: yesBioResources, 2016
In order to explore the potential application of green solvent ionic liquids (ILs) in the kraft pulping process, eucalyptus wood was pretreated by [Mmim]DMP before normal pulping.
Yi Hou   +4 more
doaj   +1 more source

Enhancing Climate Resilience Through Dam and Barrier Removal

open access: yesWIREs Water, Volume 13, Issue 3, May/June 2026.
Climate change alters the costs, benefits, and risks of dams. Removing obsolete and unsafe dams and barriers is a strategy for climate resilience. ABSTRACT Hydroclimate change is stressing dams and their management, altering the benefits, costs, and risks of built water infrastructure for people and the environment.
Sarah E. Null   +3 more
wiley   +1 more source

From Hemp Bast to Lyocell Fiber: Sustainable Process Optimization for Lyocell‐Grade Dissolving Pulp

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 16, April 20, 2026.
This study presents a sustainable method to produce lyocell‐grade dissolving pulp from Canadian hemp bast fibers. A simplified alkali‐chelation‐bleaching process, free from sulfur and chlorine, yielded high α‐cellulose pulp with low lignin and hemicellulose content. The pulp was successfully spun into continuous hemp‐based lyocell fibers, demonstrating
Md Abu Sayed   +8 more
wiley   +1 more source

Revisiting acidulation for tall oil and lignin manufacturing

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 1677-1691, April 2026.
Abstract Tall oil is a byproduct of the kraft pulping process when softwood is used as raw material. As the production of softwood‐based pulp is in high demand, the optimization of the tall oil production process needs to be revisited to ensure the highest quality and quantity of tall oil manufacturing. In this work, the process for tall oil production
Thomas Aro, Weijue Gao, Pedram Fatehi
wiley   +1 more source

The Use of Cationites in the Modification of Kraft Lignin with Nitrous Acid

open access: yesЛесной журнал
Kraft lignin is the largest-tonnage technical lignin formed during kraft pulp cooking. According to statistics, approximately 70 mln t of such waste are generated annually.
Yuriy G. Khabarov   +3 more
doaj   +1 more source

Art Adds Value to Ecological Field Courses: A Multi‐Year Case Study in Higher Education

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
This study presents Earth Projects, an interdisciplinary, place‐based field course that merges ecology and ecological art (eco‐art) to foster deeper engagement with environmental learning. Pre‐ and post‐survey comparisons show that incorporating eco‐art can strengthen students' emotional connections to their identities, disciplines, and place.
Anna Mehlhorn, Anna M. Davidson
wiley   +1 more source

Adição de antraquinona na polpação alcalina de Eucalyptus saligna

open access: yesCiência Florestal, 2000
The present work evaluated different alkaline pulping conditions for Eucalyptus saligna wood. The objective was to evaluate the influence of the anthraquinone (AQ) on the reduction of the total reduced sulfur (TRS) in the aerial emissions, by reducing ...
Lúcia Helena Jerônimo   +2 more
doaj  

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