Results 21 to 30 of about 377 (156)

Moisture Properties, Microstructural and Microbiological Characteristics of Flax and Hemp Shives Used in Construction Industry

Journal of Natural Fibers
The construction industry is among the largest energy-consumer and waste-generating sectors, and it needs sustainable methods and materials to decrease its carbon footprint. One possible solution is to use secondary raw materials and crops as a basis for
Anna Gotkowska-Płachta, Przemysław Brzyski, Maria Tunkiewicz   +2 more
exaly   +3 more sources

Effect of Hemp Shive Granulometry on the Thermal Conductivity of Hemp-Lime Composites. [PDF]

Materials (Basel)
This study investigates the effect of hemp shive granulometry on the thermal conductivity and microstructure of hemp–lime composites. Three distinct particle size fractions—fine, medium, and coarse—were characterized using high-resolution image analysis to determine geometric parameters such as Feret diameters, circularity, and elongation.
Piątkiewicz W, Narloch P, Wólczyńska Z, Mańczak J.   +3 more
europepmc   +3 more sources

An Impact of Moisture on Thermal State of Flax and Hemp Shives Thermal Insulations. [PDF]

Materials (Basel)
Plant-based materials exhibit different moisture absorption properties than synthetic materials. In the case of synthetic fibrous insulation, the effect of moisture on thermal conductivity can be relatively easily determined based on the mass fraction of moisture in the material’s skeleton.
Kosiński P, Kwiatkowska L, Gorząch A, Kwiatkowska M, Brzyski P.   +4 more
europepmc   +3 more sources

Revealing the adsorption mechanism of copper on hemp-based materials through EDX, nano-CT, XPS, FTIR, Raman, and XANES characterization techniques

Chemical Engineering Journal Advances, 2022
Hemp-based materials have been recently proposed as adsorbents for metals present in aqueous solutions using adsorption-oriented processes. This study aims to reveal the adsorption mechanism of materials prepared from hemp shives as co-products of the ...
Chiara Mongioví, Grégorio Crini, Xavier Gabrion, Vincent Placet, Virginie Blondeau-Patissier, Anna Krystianiak, Sylvie Durand, Johnny Beaugrand, Angelina Dorlando, Camille Rivard, Landrot Gautier, Ana Rita Lado Ribeiro, Dario Lacalamita, Bernard Martel, Jean-Noël Staelens, Aleksandra Ivanovska, Mirjana Kostić, Olivier Heintz, Corina Bradu, Marina Raschetti, Nadia Morin-Crini   +20 more
doaj   +1 more source

Physical Characterization of Ten Hemp Varieties to Use as Animal Bedding Material

Animals, 2023
Hemp (Cannabis sativa L.) hurds, the inner bark of the stem, are a poorly appreciated part of the plant that typically represents waste. The aim of this experiment was to describe the physical characteristics, including moisture (M), water absorption (WA)
Sheyla Arango, Rosa Greco, Nadia Guzzo, Emiliano Raffrenato, Massimo Montanari, Lucia Bailoni   +5 more
doaj   +1 more source

MICRO- AND NANOPARTICLES FROM HEMP SHIVES AND HEMP CELLULOSE IN PAPERMAKING

Cellulose Chemistry and Technology, 2020
Nano- and microparticles were produced from hemp shives and hemp cellulose obtained thereof, using the thermocatalytic mechanical destruction method. The partially destructed material, at concentrations of 8-9%, was dispersed in water medium in a ball mill or ground without the presence of water in a ball mill (~15 h).
MARIANNA LAKA, MARITE SKUTE, INESE FILIPOVA, VELTA FRIDRIHSONE, ULDIS GRINFELDS, JURIS ZOLDNERS, MARTINS SPADE, IGORS SIVACOVS   +7 more
openaire   +1 more source

Mechanical and physical properties of industrial hemp-based insulation materials; pp. 183–192 [PDF]

Proceedings of the Estonian Academy of Sciences, 2018
In recent years, research in the field of insulation materials in buildings has been focusing increasingly more upon ecological properties of these materials. Hemp is an annual bast fibre plant, which delivers fibres, shives, and seeds.
Heikko Kallakas, Merili Närep, Aivo Närep, Triinu Poltimäe, Jaan Kers   +4 more
doaj   +1 more source

Cultivation of Lentinula edodes (Berk.) Sing. on by-products from hemp straw processing [PDF]

Herba Polonica
Introduction: Shiitake mushrooms (Lentinula edodes (Berk.) Sing.) have extraordinary health properties that have been used for centuries in Japanese medicine. Objective: The primary aim of the research was to test the possibility of cultivating Lentinula
JACEK KOŁODZIEJ, ANNA KICIŃSKA-JAKUBOWSKA   +1 more
doaj   +1 more source

Extraction of Lignin from Hemp Shives

Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference, 2015
Industrial hemp contains 65-80% shives of the stalk and are composed of libriform fibres who are high lignin content. Steam explosion (SE) auto-hydrolysis is a simple treatment of biomass (agricultural waste, logging residues, etc.) by saturated only steam without any additional reagents, usually at pressures 32 atmospheres.
Andzs, Martins, Gravitis, Janis, Veveris, Andris   +2 more
openaire   +3 more sources

Chemical Modification of Hemp Shives and their Characterization

Procedia Engineering, 2012
AbstractLightweight lignocellulosic composites are potentially contributing to sustainable development. However, lignocellulosic fillers are not always fully compatible with an inorganic matrix, which causes a variety of adverse outcomes such as the coherence and mechanical properties of composites.
Terpáková, E., Kidalová, L., Eštoková, A., Čigášová, J., Števulová, N.   +4 more
openaire   +1 more source