Research was performed into the use of hemp shive as a fast-growing and carbon-storing agricultural waste material in the production of particleboard for the construction industry. Hemp shives were acquired and prepared for board production with the use of milling and sieving to reach two target groups with 0.5 mm to 2 mm and 2 mm to 5.6 mm particle size ranges. The cold pressing method was used to produce hemp boards with Kleiberit urea formaldehyde resin as a binder. The boards were made as 19 mm thick single-layer parts with a density range of 300 ± 30 kg/m, which qualifies them as low-density boards. Exploratory samples were made using milled hemp fibers with higher density. Additional components such as color pigments and wood finishes were added to test improved features over raw board samples. Tests were performed to determine moisture contents, density range, structural properties, and water absorption amounts. Produced board bending strength reached 2.4 MPa for the coarser particle group and thermal conductivity of 0.057 ± 0.002 W/(mK). The results were compared with existing materials used in the industry or in the development stage to indicate options of developed board applications as indoor insulation material in the construction industry.
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http://dx.doi.org/10.3390/ma15030886 | DOI Listing |
Sci Rep
January 2025
Faculty of Forestry, Isparta university of Applied Science, Isparta Merkez/Isparta, Çünür, 32260, Turkey.
Due to the scarcity of wood in some countries, it is necessary to replace it with other raw materials and at the same time use the waste material. The aim of this research is to use poppy waste straw for the efficient conversion of possible lignocellulosic materials - pulps and particleboards. Their suitability for the production of composites is assessed on the basis of selected physical or mechanical properties.
View Article and Find Full Text PDFChemSusChem
December 2024
Department of Aeronautics, Imperial College London, Exhibition Road, London, SW7 2AZ, UK.
Empty fruit bunch (EFB), an abundant lignocellulosic residue from the palm oil milling process, is typically discarded on open land or used as mulch. In this work, a simple method that mimics a papermaking process, was developed to upcycle EFB into higher value fibreboard without the need for any polymeric binders. The cellulose network from pulp fibres was utilised to hold the otherwise loose EFB fibres together to produce a rigid EFB fibreboard.
View Article and Find Full Text PDFPolymers (Basel)
October 2024
Faculty for Forestry and Wood Technology, Mendel University in Brno, Zemedelska 1, 61300 Brno, Czech Republic.
The continuous rise in global demand for wood products has led to an increase in prices and a surge in research into alternative resources. As a byproduct of the timber industry, bark has emerged as a promising supplement in particleboard (PB) production. However, its anatomical structure, the presence of extractives, and its inferior mechanical properties complicate the production process, which have not yet been fully overcome at a commercial scale.
View Article and Find Full Text PDFCurr For Rep
August 2024
Renewable Materials Research Centre (CRMR), Faculty of Forestry, Geography, and Geomatics, Université Laval, Québec, QC Canada.
Purpose Of Review: This review explores the opportunities and challenges associated with using unconventional and underutilized wood sources, such as fast-growing species, logging residues, fire-damaged wood, and post-consumer wood, to manufacture wood-based composite panels (WBCPs), particularly particleboard, medium-density fiberboard (MDF), and oriented strand board. This paper also discusses recent advancements in lightweight and multifunctional panels, with new features such as fire resistance, electrical conductivity, electromagnetic shielding, and antibacterial laminates.
Recent Findings: Climate change, wildfires, and competition from the energy sector threaten current sources of fiber supply for WBCP manufacturing in some regions.
Int J Biol Macromol
September 2024
State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Collaborative Innovation Center for Food Safety and Quality Control, Jiangnan University, Wuxi 214122, China.
Environmentally friendly and non-toxic bio-based adhesives are emerging as the most promising substitutes for petroleum-based adhesives, attracting increasing attention. This work involved the synthesis of a starch-based adhesive for particleboards by grafting diacetone acrylamide (DAAM) onto starch. The graft polymerization was initiated using three different initiators: ammonium persulfate (APS), hydrogen peroxide (HO)/ammonium ferrous sulfate system, and ceric ammonium nitrate (CAN).
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