Fibreboards and their applications

Ormondroyd, Graham; Stefanowski, Bronia

doi:10.1016/b978-1-78242-454-3.00005-6

Cited by 6 publications

(9 citation statements)

References 7 publications

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“…However, considerations for the development of a lowcost and energy-efficient industrial-scale FB production process using sustainable waste materials are now underway. In contrast to the conventional production processes [1], the linked techniques described here could be scaled and more rigorous automation is incorporated. The automation will allow more detailed quantitative assessments of each operation units and evaluate overall impact on FB formed using only water as a binding catalyst and thus making the entire process eco-friendly.…”

Section: Composite Pre-treatment Process Development and Equipment mentioning

confidence: 99%

“…Fibreboard (FB) is a widely adopted wood-based insulation material used in the building and construction industry. Depending on the application, the particular FB product may vary from the medium-density (MDF) to high-density fibreboard (or hardboard) [1]. The consumption of MDF in Europe in 2012 was reported as 10.3 million m 3 ("European Panel Federation (EPF)," 2014).…”

Section: Introductionmentioning

confidence: 99%

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Initial assessment of reuse of sustainable wastes for fibreboard production: the case of waste paper and water hyacinth

Ojo

Okwu

Edomwonyi‐Otu

et al. 2019

J Mater Cycles Waste Manag

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In this early study, new cement-bonded bi-composite fibreboard (FB) was made from water hyacinth (WaHy) and waste paper (WP). Ordinary Portland cement (PdCe) used as a binder was mixed with other two additives: gypsum plasters (GyPl) and wood ash (WdAh), in defined proportions to form bonding matrices. The WP and WaHy were pre-treated and a linked process was developed for the mixing and consolidation steps. The FBs produced were based on different proportions of composites, binder, and additives mixed. The FBs produced were made from different proportions of composites, binders, and additives. Improved tensile strength was observed for bi-composite FB from WaHy mixed with WP. In general, FBs having densities in the range of 0.50-0.57 g cm −3 were compared favourably with the ASTM and ANSI standards (95%), thus making the FBs a potential alternative for building and construction purposes. More elaborate research with advanced analytical techniques is hereby suggested.

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Section: Composite Pre-treatment Process Development and Equipment mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Initial assessment of reuse of sustainable wastes for fibreboard production: the case of waste paper and water hyacinth

Ojo

Okwu

Edomwonyi‐Otu

et al. 2019

J Mater Cycles Waste Manag

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“…In 1965, MDF was produced in accordance to the hardboard manufacturing in the United States. By the time, the dry-process MDF was developed as an alternative to the wet-process fiberboards, which generated huge amounts of polluted wastewater and must be treated before disposal (Ormondroyd and Stefanowski 2015;Suchsland and Woodson 1986). MDF is a relatively cheap building material with similar application to plywood.…”

Section: Introductionmentioning

confidence: 99%

The Removal of Cured Urea-Formaldehyde Adhesive towards Sustainable Medium Density Fiberboard Production: A Review

Manohar

Laksana²,

Fatriasari

et al. 2021

JSL

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Medium density fiberboard (MDF) is an engineered wood product that has density and specific gravity similar to solid wood, ranging from 600 to 800 kg/m3 of density and 0.6 to 0.8 of specific gravity. This makes MDF suitable to partially replace solid wood, particularly for interior application. Approximately over than 100 million m3 of MDF are produced in 2020, resulting in a large amount of waste MDF will be generated in the next 20 years. MDF is produced using urea-formaldehyde (UF) resins adhesive. UF resins adhesive is a poly-condensation product of urea and formaldehyde via an alkaline acid two-step reaction. Sustainable MDF production is required as the world is facing climate change and deforestation. Recycling is a way to support sustainable production in the engineered wood products manufacturing. Many attempts have been done to find ways to recycle waste MDF. The main problem is UF resins, which bond the MDF panel fibers. In order to re-manufacture the waste MDF into new recycled MDF, UF resins should be eliminated from the waste MDF before being used. The presence of UF resins in MDF can interfere with the utilization of the recycled fibers, whether it will be used as a raw material for new MDF or other composite products. This paper reviews the process of removal of cured UF resins from waste MDF panel by considering the hydrolytic stability of cured UF resins for MDF recycling, providing a comprehensive review of how cured UF resins can be removed from waste MDF and characterization of recycled fibers obtained from recycling prior to re-manufacturing of recycled MDF panel.Keywords: hydrolysis, medium density fiberboard, resin, recycling, resin removal, urea-formaldehyde

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“…MDF can be finished into a smooth surface and can be machined into a complicated and curved profiles, which eliminating the need of veneers and laminates. This makes MDF as one of the main wood-based composite product used for interior applications, such as furniture, moldings, and doors (Lubis et al 2018b;Ormondroyd and Stefanowski 2015). It is estimated that MDF will become wood wastes after a life span of 15-20 years.…”

Section: Introductionmentioning

confidence: 99%

Effects of Hydrolysis on the Removal of Cured Urea-Formaldehyde Adhesive in Waste Medium-Density Fiberboard

Hidayat¹,

Zaini²,

Park³

2020

JSL

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The vast production of medium-density fiberboard (MDF) in the world is expected to generate a large quantity of waste MDF after its service life, which requires the recycling of waste MDF (wMDF). This work attempted to investigate the removal of cured urea-formaldehyde (UF) resins adhesive in wMDF using hydrolysis for a possible way of recycling wMDF. The wMDFs were fabricated with two kinds of recycled fibers (RFs): refiner recycled fibers (RRFs) and hammer mill recycled fibers (HRFs) from red and radiata pine. The wMDFs were also produced at different RFs contents, such as 0, 5, 10, 20, 30, 50, and 100%. The panels were then hydrolyzed with water and oxalic acid solution to remove the cured UF resins. The Kjeldahl method was applied to determine the nitrogen (N) content in the panel before and after hydrolysis. Regardless of the wood species and recycling process, the mass loss, pH, and formaldehyde liberation of wMDFs after hydrolysis were greater for oxalic acid than those in water, confirming a greater N content had been extracted by oxalic acid than water. The resin removal became greater as the RFs content increased. In addition, the resin removal was slightly greater in wMDFs made of HRFs than the RRFs. Moreover, red pine RFs gave higher resin removal than radiata pine. These results suggested that a proper combination of the recycling process and additives could make it possible to recycle wMDF panels in the future.Keywords: cured urea-formaldehyde, hydrolysis, medium-density fiberboard, oxalic acid, recycling

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Fibreboards and their applications

Cited by 6 publications

References 7 publications

Initial assessment of reuse of sustainable wastes for fibreboard production: the case of waste paper and water hyacinth

Initial assessment of reuse of sustainable wastes for fibreboard production: the case of waste paper and water hyacinth

The Removal of Cured Urea-Formaldehyde Adhesive towards Sustainable Medium Density Fiberboard Production: A Review

Effects of Hydrolysis on the Removal of Cured Urea-Formaldehyde Adhesive in Waste Medium-Density Fiberboard

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