A study on the carbon reservation of medium density fiberboard prepared from wood fiber activation with laccase-mediator system

2015 ◽  
Vol 15 (4) ◽  
pp. 625-633
Author(s):  
Xin Guan ◽  
Minghui Guo ◽  
Jiqing Li ◽  
Xueshen Liu ◽  
He Zhao ◽  
...  
Keyword(s):  
Medium Density Fiberboard ◽  
Wood Fiber ◽  
Medium Density ◽  
Mediator System ◽  
Laccase Mediator System

scholarly journals Preparation of Medium Density Fiberboard from Wood Fibers Catalytically Oxidized by Laccase-Mediator System

BioResources ◽  
2015 ◽  
Vol 10 (3) ◽  
Author(s):  
Xin Guan ◽  
Junyou Shi ◽  
Minghui Guo ◽  
Jinguo Lin ◽  
Xueshen Liu ◽  
...  
Keyword(s):  
Medium Density Fiberboard ◽  
Medium Density ◽  
Wood Fibers ◽  
Mediator System ◽  
Laccase Mediator System

scholarly journals Effects of nitrogen-phosphorus flame retardants in different forms on the performance of slim-type medium-density fiberboard

BioResources ◽  
2017 ◽  
Vol 12 (4) ◽  
pp. 8014-8029
Author(s):  
Bin Xu ◽  
Weidong Li ◽  
Daowu Tu ◽  
Zhinan Wu ◽  
Changjie Song
Keyword(s):  
Flame Retardants ◽  
Mechanical Performance ◽  
Orthogonal Design ◽  
Medium Density Fiberboard ◽  
Wood Fiber ◽  
Fire Retardant ◽  
National Standard ◽  
Medium Density ◽  
Scanning Calorimetry ◽  
Limiting Oxygen Index

An orthogonal design was used to optimize the process of making slim medium-density fiberboard modified by a nitrogen-phosphorous series of flame retardants. Mechanical performance was the evaluating criterion. Subsequently, the combustion performances of each type of flame retardant, including in states solid, liquid, and their combination with a ratio of 1:1, were investigated to clarify the corresponding fire-retardant mechanism. The results showed that only physical bonding was responsible for connecting the wood fiber with the retardants, according to the Fourier transform infrared spectrum. Catalytic charring, flame retardancy, and the thermal insulation of three types of retardant were solidified by the results of a cone calorimeter (CONE) analysis, thermogravimetric (TG) analysis, and differential scanning calorimetry (DSC), and the mixture of solid and liquid was demonstrated as the primary choice. It was also found that after the mixture of the solid and liquid retardant was added, the limiting oxygen index of the board reached 43.3%, and it met the requirements of the B1 Class in the Chinese National Standard GB/T8624-2012 (2012).

Mechanical and water soaking properties of medium density fiberboard with wood fiber and soybean protein adhesive

2009 ◽  
Vol 100 (14) ◽  
pp. 3556-3562 ◽  
Author(s):  
Xin Li ◽  
Yonghui Li ◽  
Zhikai Zhong ◽  
Donghai Wang ◽  
Jo A. Ratto ◽  
...  
Keyword(s):  
Soybean Protein ◽  
Medium Density Fiberboard ◽  
Wood Fiber ◽  
Medium Density

scholarly journals Synchrotron X-ray microtomography and 3D image analysis of medium density fiberboard (MDF)

Holzforschung ◽  
2009 ◽  
Vol 63 (5) ◽  
Author(s):  
Thomas Walther ◽  
Heiko Thoemen
Keyword(s):  
Image Analysis ◽  
Structural Information ◽  
Medium Density Fiberboard ◽  
Wood Fiber ◽  
Three Dimensional ◽  
Environmental Scanning Electron Microscopy ◽  
Wall Material ◽  
Medium Density ◽  
Volume Data ◽  
Fiber Network

Abstract The three-dimensional microstructure of a series of laboratory medium density fiberboard (MDF) samples with densities varying from 300 kg m-3 to 1000 kg m-3 was investigated by synchrotron microtomography (SRμCT). After reconstruction and filtering of the volume data, an adapted image analysis was used to extract the structural information about the fiber network at different densities. Information was established on the distribution of intra- and inter-fiber voids, cell-wall material, individual fibers, and fiber bundles. Calculations were performed concerning the surface area towards the ambient void spaces, the number of contacts, and the contact area between selected fibers. Furthermore, the resin distribution on the fibers was investigated and characterized by SRμCT and environmental scanning electron microscopy with stained adhesives. The results presented here allow a new approach to examine the complete wood fiber network of MDFs by automatic image analysis routines.

Medium-density fiberboard performance as affected by wood fiber acidity, bulk density, and size distribution

2006 ◽  
Vol 40 (8) ◽  
pp. 637-646 ◽  
Author(s):  
Cheng Xing ◽  
S. Y. Zhang ◽  
James Deng ◽  
Bernard Riedl ◽  
Alain Cloutier
Keyword(s):  
Bulk Density ◽  
Size Distribution ◽  
Medium Density Fiberboard ◽  
Wood Fiber ◽  
Medium Density

scholarly journals Calcium carbonate modified urea–formaldehyde resin adhesive for strength enhanced medium density fiberboard production

RSC Advances ◽  
2021 ◽  
Vol 11 (40) ◽  
pp. 25010-25017
Author(s):  
Li Lu ◽  
Yan Wang ◽  
Tianhua Li ◽  
Supeng Wang ◽  
Shoulu Yang ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Urea Formaldehyde ◽  
Medium Density Fiberboard ◽  
Urea Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Medium Density ◽  
Ionic Bond ◽  
Resin Adhesive ◽  
Uf Resin ◽  
Modified Urea

Reactions between CaCO3 and CH2O2 during polycondensation of UF resin produce Ca2+. Ionic bond complexation binds Ca2+ with UF resin. The UF resin crystalline percentage decreases from 26.86% to 22.71%. IB strength of resin bonded fiberboard increases from 0.75 to 0.94 MPa.

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