Influence of ligno-cellulosic particles on tribological properties of boards

Kowaluk, Grzegorz; Pałubicki, Bartosz; Frąckowiak, I.; Marchal, Roland; Beer, P.

doi:10.1007/s00107-009-0362-9

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…Previous studies confirmed that cellulosic materials in tribocontact produce a combination of cellulose and carbon fibres that show lower strengths, even at low contact pressures [66]. It has also previously been reported that biomass components such as lignin can affect friction values, especially when exposed to heat.…”

Section: Discussionmentioning

confidence: 68%

Pressure induced transformation of biomass to a highly durable, low friction film on steel

Lanigan,

Faas,

Butcher

et al. 2024

Proc. R. Soc. A.

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Herein the authors report a detailed insight into the tribological and chemical mechanisms that take place when leaf matter is present at the wheel/rail interface. The approach used enables further insight into the formation and subsequent effects on friction from leaf derived layers. Results shed insight on the process that facilitates the formation of leaf derived layers, their structure and chemical make-up. Our analysis indicates that polyphenols, a chemical family that include tannins, have an important role in layer formation and hypothesis on the layer's stability, when formed under high pressures. The data indicate that the high pressure found at the wheel/rail interface facilitates conversion of biomass into a tenacious, thin film. This is shown by the increase in the amount of phenolic compounds present. Phenolic compounds are typically rich in oxygen functional groups that have the ability to bind to metal ions. This insight into the composition of the film is expected to enable the development of novel remediation strategies. It highlights the potential for cleaning agents to be used as tools for restoring friction to safe values. This should lead to improvements in the operational performance and safety of rail transport for passengers and train operators.

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Section: Discussionmentioning

confidence: 68%

Pressure induced transformation of biomass to a highly durable, low friction film on steel

Lanigan,

Faas,

Butcher

et al. 2024

Proc. R. Soc. A.

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“…Boards with densities between 450 kg/m 3 and 650 kg/m 3 , improved strength properties and water resistance. Three-layer particleboards made in semi-industrial conditions from rape straw (50% of the core) showed enhanced technological properties (Kowaluk et al 2007) in terms of reduced friction forces during the cutting process.…”

Section: Introductionmentioning

confidence: 99%

Morphology, physical, and mechanical properties of particleboard made from rape straw and wood particles glued with urea-formaldehyde resin

Coşereanu

Cerbu

2019

BioRes

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The morphology, physical, and mechanical properties were investigated for single-layer particleboard made with various proportional contents of wood and rape stalk particles glued with urea-formaldehyde resin. Fine crushed rape stalk particles were used for the experimental particleboards. The weight ratios of rape-to-wood particles were 0:100, 10:90, 30:70, 50:50, and 70:30. Mixed beech and spruce wood particles with percentages of 30% for beech wood and 70% for spruce wood were considered for the configuration. Urea-formaldehyde resin with a solid content of 66 ± 1% was added to the single-mat configuration at a level of 12%, based on the weight of the particles. Physical (density, water absorption, and thickness swelling) and mechanical (modulus of elasticity, bending strength, internal bond strength) investigations on the particleboards obtained in the laboratory conditions were conducted. The results were compared to the requirements of the EN 312 (2004) standard. In addition, morphological observation at macro- and micro-scale and vertical density profile analysis was conducted on particleboards in order to characterize the interaction between wood-rape particles and resin. Variations of the structure and density were observed relative to thickness, providing information concerning to the internal bond performance of the panels.

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Zur Nutzung von Agrar-Reststoffen in der Holzwerkstoffindustrie

2011

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Considering on-going global deforestation and the increased demand for raw materials in all wood-processing sectors it is necessary to seek and employ alternative resources. Particularly for the wood-based panel industry (partial) substitution of conventional wood material by agricultural residues, for example, cereal straws or suitable lignocellulose-based raw materials may proof to be a resource of increasing importance. If some economic conditions (transport, storage, pre-treatment costs) are favourable, the use of these residues will satisfy the different aspects of sustainable management. The material utilization of renewable raw materials for high quality products generates high added value for both producers and rural suppliers. Furthermore, negative impacts on the environment (air pollution, high water consumption) due to conventional waste disposal and overexploitation of forests are reduced. An overview of potentials, development and challenges in the field of panel production made from agro-based lignocelluloses is provided

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Influence of ligno-cellulosic particles on tribological properties of boards

Cited by 6 publications

References 7 publications

Pressure induced transformation of biomass to a highly durable, low friction film on steel

Pressure induced transformation of biomass to a highly durable, low friction film on steel

Morphology, physical, and mechanical properties of particleboard made from rape straw and wood particles glued with urea-formaldehyde resin

Zur Nutzung von Agrar-Reststoffen in der Holzwerkstoffindustrie

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