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Development and Characterization of Biodegradable, Binderless Fiberboards from Eggplant Straw Fibers.
Materials (Basel)
December 2024
International Joint Research Center on High-Value Utilization of Agricultural Waste Biomass Between Jiangsu University, China, and Mie University, Japan, Zhenjiang 212013, China.
Currently, wood-based panels are mainly made from wood and adhesives containing formaldehyde. With the growing demand for raw materials and increasing concern for human health, the use of residues from annual crops to manufacture binder-free biodegradable biomass boards has attracted increasing interest. The aim of this study was to develop a biodegradable bio-board without any adhesives using eggplant straw fibers.
View Article and Find Full Text PDFFrom Crop Residue to Corrugated Core Sandwich Panels as a Building Material.
Materials (Basel)
December 2024
Department of Sustainable Bioproducts, Mississippi State University, P.O. Box 9820, Starkville, MS 39762, USA.
This study explores the potential of using underutilized materials from agricultural and forestry systems, such as rice husk, wheat straw, and wood strands, in developing corrugated core sandwich panels as a structural building material. By leveraging the unique properties of these biobased materials within a corrugated geometry, the research presents a novel approach to enhancing the structural performance of such underutilized biobased materials. These biobased materials were used in different lengths to consider the manufacturing feasibility of corrugated panels and the effect of fiber length on their structural performance.
View Article and Find Full Text PDFPreparation of Hot-Pressed Wheat Straw Board by Self-Adhesive Process: Effects of Raw Material Sizes and Acid/Alkali Pretreatment.
Materials (Basel)
November 2024
Guangdong Provincial Engineering & Technology Center for Corrosion and Safety in Petrochemical Industry, School of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China.
The development of wheat straw boards utilizing intrinsic bonding mechanisms not only facilitates the high-value utilization of agricultural solid waste but also diminishes the reliance on synthetic adhesives. In this study, using wheat straw as the primary substrate, we investigated the effects of mechanical smashing combined with pretreatment using inorganic acids or alkalis on the properties of hot-pressed boards, as well as the relationship between the properties of hot-pressed boards and the physical properties and chemical composition of wheat straw raw materials. These selective pretreatments effectively degraded lignin, hemicellulose, and other components, thereby promoting fiber reorientation and resulting in a denser microstructure with improved self-bonding capabilities.
View Article and Find Full Text PDFA sustainable black liquor-based carbon scavenger to promote urea formaldehyde as green wood adhesive with low formaldehyde emission.
Int J Biol Macromol
December 2024
Cellulose and Paper Department, National Research Centre, Dokki-12622, Giza, Egypt. Electronic address:
The current study focuses on finding an ecological method to dispose of black liquors (BLs), containing lignin macromolecules, which are produced as byproducts of rice straw-based paper production. In addition to maximizing their value as precursors in the preparation of novel formaldehyde scavengers to avoid the environmental risks associated with using urea formaldehyde in agro-wood composites. To optimize the route, various black liquors are prepared from pulping of rice straw by different pulping agents (alkali, neutral, acidic and kraft reagents) used as additions or precursors for carbon compounds.
View Article and Find Full Text PDFHepatitis C Treatment and Behavioral Risk Among Men Who Have Sex With Men With HIV: Comparing Interferon and Direct-Acting Antiviral Eras.
J Acquir Immune Defic Syndr
January 2025
Department of Infectious Diseases, Research and Prevention, Public Health Service of Amsterdam, Amsterdam, the Netherlands.
Background: Little is known about the effect of hepatitis C virus (HCV) treatment on sexual risk behavior among men who have sex with men (MSM) with HIV by treatment type (interferon [IFN]-based vs direct-acting antiviral [DAA]-based).
Setting: MSM with HIV and recently acquired HCV infection enrolled in the MSM Observational Study of Acute Infection with hepatitis C (MOSAIC) cohort.
Methods: Using data from 2009 to 2018, we evaluated risk behavior through a validated HCV risk score (where ≥2 indicated high risk) and its individual risk behaviors.
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