Effects of recycled fiber content on the properties of medium density fiberboard

Hong, Min-Kug; Park, Byung‐Dae; Lee, Sang-Min

doi:10.1007/s00107-018-1326-8

Cited by 38 publications

(51 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As can be seen in Figure 8 , the highest WA for top and bottom HDF side was obtained for V0, accordingly, 255 g m −2 and 273 g m −2 , while the lowest was for V10, with results of top side WA of 175 g m −2 and bottom side WA of 185 g m −2 . All panels with HDF-r had ≈30% lower top (V2 = 187 g m −2 ; V5 = 186 g m −2 ) and bottom (V2 = 191 g m −2 V5 = 187 g m −2 ) surface water absorption compared to V0, which is consistent with other works [ 21 ]. Moreover, in all panels, higher WA could be observed for the bottom side compared to the top side.…”

Section: Resultssupporting

confidence: 91%

“…The TS24 of V2 (32.82%) increased ≈5% compared to V0, while V5 had an increase of ≈5% to 34.25%. An increase in TS of panels with HDF-r might be caused by their rougher structure and their smaller dimensions compared to virgin fibers [ 21 , 24 ]. The highest TS2 and TS24 were measured for V10, being 11.71% and 34.54%, respectively, which was ≈15% and ≈10% higher than V0.…”

Section: Resultsmentioning

confidence: 99%

“…Although the recycling of wooden materials is environmentally friendly [ 8 ], the recovered fiber pulp has different chemical and physical characteristics when compared to virgin fibers [ 21 ]. These differences affect the final mechanical and physical properties of the fiberboards negatively [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Adding Offcuts and Trims with a Recycling Approach on the Properties of High-Density Fibrous Composites

2020

View full text Add to dashboard Cite

The sizeable global production of wood-based products requires new sources of raw material, but also creates large quantities of wastes or composites that do not comply with requirements. In this study, the influence of different shares of recovered high-density fiberboards (HDF-r), reversed into the production, on industrial HDF properties, has been examined. HDF-r may be a suitable partial substitute for raw pinewood for industrial HDF production. Although most of the mechanical properties, as well as thickness swelling and water absorption, had a linear decrease with the increase in the share of HDF-r share, the elaborated boards met most of the commercial requirements (EN 622-5). The property that did not meet the requirements was the internal bond strength for panels with 10% of HDF-r. The presented results show that, after some adjustments, it should be possible to produce HDF boards with up to 10% of recycled HDF being able to meet all commercial requirements.

show abstract

Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Adding Offcuts and Trims with a Recycling Approach on the Properties of High-Density Fibrous Composites

2020

View full text Add to dashboard Cite

show abstract

“…Fiberboards are wood-based panels produced by breaking down softwood and hardwood material into fibers, mixing them with wax and a formaldehyde-based thermosetting resin, such as urea-formaldehyde (UF), phenol formaldehyde, or melamine-urea formaldehyde, and forming panels by applying pressure and high temperature in a hot press [ 14 , 15 ]. Depending on the density, fiberboards can be classified into low-density fiberboards, with densities less than 400 kg·m −3 , medium-density fiberboards, with densities ranging from 400 to 900 kg·m −3 , and high-density fiberboards (HDF), with densities ranging from 900 to 1100 kg·m −3 .…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly, High-Density Fiberboards Bonded with Urea-Formaldehyde and Ammonium Lignosulfonate

et al. 2021

View full text Add to dashboard Cite

The potential of producing eco-friendly, formaldehyde-free, high-density fiberboard (HDF) panels from hardwood fibers bonded with urea-formaldehyde (UF) resin and a novel ammonium lignosulfonate (ALS) is investigated in this paper. HDF panels were fabricated in the laboratory by applying a very low UF gluing factor (3%) and ALS content varying from 6% to 10% (based on the dry fibers). The physical and mechanical properties of the fiberboards, such as water absorption (WA), thickness swelling (TS), modulus of elasticity (MOE), bending strength (MOR), internal bond strength (IB), as well as formaldehyde content, were determined in accordance with the corresponding European standards. Overall, the HDF panels exhibited very satisfactory physical and mechanical properties, fully complying with the standard requirements of HDF for use in load-bearing applications in humid conditions. Markedly, the formaldehyde content of the laboratory fabricated panels was extremely low, ranging between 0.7–1.0 mg/100 g, which is, in fact, equivalent to the formaldehyde release of natural wood.

show abstract

“…The pH of the extract solutions of UF resins‐bonded MDFs was in the range of 4.9–5.1, while those of MDFs bonded with pure OS were in the range 3.8–4.4. The pH of virgin Red pine fiber was reported to be around 4.8–5.5 . Therefore, it was clear that most of the OS adhesive was extracted after hydrolysis of OS‐bonded MDFs at 25 °C for 6 h, while only wood extractives were extracted from UF resins‐bonded MDFs.…”

Section: Resultsmentioning

confidence: 99%

Tailoring of oxidized starch's adhesion using crosslinker and adhesion promotor for the recycling of fiberboards

Park

Hong

2019

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

The growing interest in recycling waste medium density fiberboards (MDFs) is driving the development of new adhesives that provide sufficient adhesion, and allow disintegration of the waste MDFs. Described in here is the preparation of adhesives based on oxidized starch (OS) in combination with blocked‐polymeric 4‐4 diphenylmethane diisocyanate (B‐pMDI) as a crosslinker and poly(vinyl alcohol) (PVA) as an adhesion promotor for the recycling of waste MDFs. The COOH groups of OS were reacted with NCO groups of B‐pMDI to form amide linkages, and the CHO groups were reacted with OH groups of PVA through hydrogen bonding. Further, when applied as an adhesive, the OS formed ester linkages with OH of MDF fibers. As the results, MDF bonded with 1% B‐pMDI/15% PVA/OS adhesive had an internal bonding strength of 0.13 MPa, 0.01 mg L−1 of formaldehyde emission (FE), and 12% of degree of fiber disintegration. These results demonstrate that the B‐pMDI/PVA/OS adhesive is a possible alternative to the current urea–formaldehyde resins for the recycling of waste MDFs into recycled MDFs without FE. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47966.

show abstract

Effects of recycled fiber content on the properties of medium density fiberboard

Cited by 38 publications

References 24 publications

Influence of Adding Offcuts and Trims with a Recycling Approach on the Properties of High-Density Fibrous Composites

Influence of Adding Offcuts and Trims with a Recycling Approach on the Properties of High-Density Fibrous Composites

Eco-Friendly, High-Density Fiberboards Bonded with Urea-Formaldehyde and Ammonium Lignosulfonate

Tailoring of oxidized starch's adhesion using crosslinker and adhesion promotor for the recycling of fiberboards

Contact Info

Product

Resources

About