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Article

Potential Use of Wollastonite as a Filler in UF Resin Based Medium-Density Fiberboard (MDF)

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Wood Science and Technology Department, Faculty of Materials Engineering & New Technologies, Shahid Rajaee Teacher Training University, Tehran 16788-15811, Iran
2
Department of Physics, Faculty of Sciences, Shahid Rajaee Teacher Training University, Tehran 16788-15811, Iran
3
National Centre for Timber Durability and Design Life, University of the Sunshine Coast, Brisbane, QLD 4102, Australia
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Wood Biology and Wood Products, Georg-August-University Göttingen, 37077 Göttingen, Germany
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Laboratory of Wood Chemistry and Technology, Department of Forestry and Natural Environment, International Hellenic University, GR-661 00 Drama, Greece
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(7), 1435; https://doi.org/10.3390/polym12071435
Received: 18 May 2020 / Revised: 25 June 2020 / Accepted: 25 June 2020 / Published: 27 June 2020
(This article belongs to the Special Issue Recent Developments in Eco-Friendly Wood-Based Composites)
Urea-formaldehyde (UF) resins are primary petroleum-based, increasing their potential environmental footprint. Identifying additives to reduce the total amount of resin needed without adversely affecting the panel properties could reduce these impacts. Wollastonite is a mineral containing calcium and silica that has been used as an additive in a variety of materials and may be useful as a resin extender. Nanoscale wollastonite has been shown to enhance the panel properties but is costly. Micron-scale wollastonite may be a less costly alternative. Medium-density fiberboards were produced by blending a hardwood furnish with UF alone, micron-sized wollastonite alone, or a 9:1 ratio of UF to wollastonite. Panels containing of only wollastonite had poor properties, but the properties of panels with 9:1 UF/wollastonite were similar to the UF-alone panels, except for the internal bond strength. The results suggest that small amounts of micron-sized wollastonite could serve as a resin extender. Further studies are suggested to determine if the micron-sized material has similar positive effects on the resin curing rate. View Full-Text
Keywords: engineered materials; cell-wall polymers; wollastonite; wood-based composites engineered materials; cell-wall polymers; wollastonite; wood-based composites
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MDPI and ACS Style

Taghiyari, H.R.; Esmailpour, A.; Majidi, R.; Morrell, J.J.; Mallaki, M.; Militz, H.; Papadopoulos, A.N. Potential Use of Wollastonite as a Filler in UF Resin Based Medium-Density Fiberboard (MDF). Polymers 2020, 12, 1435. https://doi.org/10.3390/polym12071435

AMA Style

Taghiyari HR, Esmailpour A, Majidi R, Morrell JJ, Mallaki M, Militz H, Papadopoulos AN. Potential Use of Wollastonite as a Filler in UF Resin Based Medium-Density Fiberboard (MDF). Polymers. 2020; 12(7):1435. https://doi.org/10.3390/polym12071435

Chicago/Turabian Style

Taghiyari, Hamid R.; Esmailpour, Ayoub; Majidi, Roya; Morrell, Jeffrey J.; Mallaki, Mohammad; Militz, Holger; Papadopoulos, Antonios N. 2020. "Potential Use of Wollastonite as a Filler in UF Resin Based Medium-Density Fiberboard (MDF)" Polymers 12, no. 7: 1435. https://doi.org/10.3390/polym12071435

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