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

被引:18
作者
Taghiyari, Hamid R. [1 ]
Esmailpour, Ayoub [2 ]
Majidi, Roya [2 ]
Morrell, Jeffrey J. [3 ]
Mallaki, Mohammad [1 ]
Militz, Holger [4 ]
Papadopoulos, Antonios N. [5 ]
机构
[1] Shahid Rajaee Teacher Training Univ, Fac Mat Engn & New Technol, Wood Sci & Technol Dept, Tehran 1678815811, Iran
[2] Shahid Rajaee Teacher Training Univ, Fac Sci, Dept Phys, Tehran 1678815811, Iran
[3] Univ Sunshine Coast, Natl Ctr Timber Durabil & Design Life, Brisbane, Qld 4102, Australia
[4] Georg August Univ Gottingen, Wood Biol & Wood Prod, D-37077 Gottingen, Germany
[5] Int Hellen Univ, Dept Forestry & Nat Environm, Lab Wood Chem & Technol, GR-66100 Drama, Greece
关键词
engineered materials; cell-wall polymers; wollastonite; wood-based composites; UREA-FORMALDEHYDE RESINS; MECHANICAL-PROPERTIES; ADHESIVE SYSTEMS; NANO-CLAY; WOOD; PARTICLEBOARD; NANOPARTICLES; WATER;
D O I
10.3390/polym12071435
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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.
引用
收藏
页数:12
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