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43 records – page 1 of 5.

Ammonium-based spent sulphite liquor binder optimization for waferboard and particleboard applications

https://library.fpinnovations.ca/en/permalink/fpipub1496
Author
Shen, K.C.
Date
March 1982
Edition
38001
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Shen, K.C.
Date
March 1982
Edition
38001
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Waferboards
Spent sulfite liquors
Spent liquors
Particle boards
Gluing
Adhesives
Series Number
CFS/DSS project no 42/81-82
60-55-161-1
E-25
Location
Ottawa, Ontario
Language
English
Abstract
Adhesion and Adhesives - Wood
Particleboard - Gluing
Waferboard - Gluing
Spent Sulphite Liquor
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Codes & standards of composite wood panels in the world trade

https://library.fpinnovations.ca/en/permalink/fpipub4962
Author
Hsu, J.
Date
December 1996
Edition
41792
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Hsu, J.
Date
December 1996
Edition
41792
Material Type
Research report
Physical Description
15 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waferboards
Standards
Particle boards
Oriented strandboard
MDF
Location
Sainte-Foy, Québec
Language
English
Abstract
This report compares international standards for particleboard, waferboard, OSB, MDF, hardboard as well as cement bonded wood composite panels. Property requirements are discussed and comparisons are made between countries. Formaldehyde emission regulations were surveyed in eighteen countries.
Particleboard - Waferboard - OSB - MDF - Hardboard - Cement Bonded
Codes & Standards
World Trade
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Development of an accelerated aging test for interior grade particleboard

https://library.fpinnovations.ca/en/permalink/fpipub38049
Author
Aston, R.
Date
March 1985
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Aston, R.
Date
March 1985
Material Type
Research report
Physical Description
17 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Testing
Particle boards
Adhesives
Series Number
CFS project no. 18
Project no.6010002
E-130
Location
Ottawa, Ontario
Language
English
Abstract
Particleboard - Testing
Adhesives - Testing
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Development of a X-ray resin analyser for medium density fibreboard and particleboard

https://library.fpinnovations.ca/en/permalink/fpipub5572
Author
Feng, Martin
Date
May 2002
Edition
37630
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Feng, Martin
Date
May 2002
Edition
37630
Material Type
Research report
Physical Description
38 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Resin
Particle boards
Gluing
Glue
Series Number
3248
W-1892
Location
Vancouver, British Columbia
Language
English
Abstract
Good resin distribution is key to the manufacture of high quality composite panels at low cost. An effective, reliable and non-destructive method for the detection and measurement of urea-formaldehyde (UF) resin content and distribution in furnish and panels is highly desirable in scientific research and in the medium density fibreboard (MDF) and particleboard industry, but up to now it has not been available. In the Forintek laboratory, a novel non-destructive test method has been developed to allow the effective tracing of UF resin with a copper (2+) ion labeling agent throughout the board manufacturing process. Experiments using Scanning Electron Microscope (SEM) coupled with Energy Dispersive Analysis of X-rays (EDAX) have produced conclusive evidence that the copper (2+) label stays with the UF resin molecules at all times (even at high temperatures), which is essential to the effectiveness of UF resin labeling. X-ray fluorescence experiments have demonstrated that UF resin in MDF fibre can be detected and measured with great precision by using this method, as shown by the calibration curves (copper readings vs. UF resin add-on rates). A linear relationship between UF resin loading levels and the labeling agent quantities was observed. The reproducibility of each sample measurement is so good that variations of copper readings among different samples of the same batch of blending can effectively and quantitatively reflect the quality of the blending. This method can be used to measure UF resin not only in MDF furnish but also in MDF panels. An MDF mill trial of this new method to measure melamine-urea-formaldehyde resin was successful. The trial showed that it is a practical tool for monitoring resin loading levels and uniformity and it is also a useful tool for on-site troubleshooting and process optimization. It can be used for fast analysis on an off-line basis. It is a non-destructive test method and hence has the potential for on-line applications. Lab experiments showed that this method is also applicable to the detection and measurement of UF resin distribution in particleboard furnish and panels. Combining with Tyler screen analysis, this method is capable of showing quantitatively how UF resin is distributed among different wood particle sizes. Therefore, it is an effective tool to guide the optimization of furnish particle geometry and the reduction of resin usage. Low copper concentration in the sample negatively influences the precision of the x-ray fluorescence measurement. At low resin loading levels, higher copper addition rate may be required. This would be a more important consideration in the case of particleboard because resin loading levels of particleboard are usually lower than those of MDF. Sample density has a great influence on the XRF measurement. Therefore, it should be kept as constant as possible when comparing measurement results among different samples.
Glue, Resin - Detection
Glue - Measuring
Fibreboard - Gluing
Particleboard - Gluing
Glue, Urea formaldehyde
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Effect of wood chemical characteristics on bond quality

https://library.fpinnovations.ca/en/permalink/fpipub42122
Author
Wang, Xiang-Ming
Wan, Hui
Date
March 2002
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Xiang-Ming
Wan, Hui
Contributor
Canada. Canadian Forest Service
Date
March 2002
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Softwoods
Quality control
Qualitative analysis
Particle boards
Oriented strandboard
MDF
Hardwoods
Series Number
CFS Simple Progress Report No. 29
Location
Sainte-Foy, Québec
Language
English
Abstract
Bond quality
Chemical properties
Hardwoods
Softwoods
MDF
Particleboards
OSB
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Effect of wood chemical characteristics on bond quality. Part III. Outdoor storage of logs and its impact on OSB performance

https://library.fpinnovations.ca/en/permalink/fpipub42211
Author
Wang, Xiang-Ming
Wan, Hui
Date
August 2003
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Xiang-Ming
Wan, Hui
Contributor
Canada. Canadian Forest Service
Date
August 2003
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Storage
Particle boards
Logs
Bonding
Series Number
CFS No. 29
Location
Sainte-Foy, Québec
Language
English
Abstract
It is a normal practice in oriented strandboard (OSB) production to store logs outdoors for a period of time prior to the flaking process. The duration of yard storage depends on harvest season and sources of log supply. Outdoor log storage without protection could change the mechanical and chemical properties of wood due to attack by various fungi. To understand how outdoor log storage affects the wood and subsequently the strandboard quality, two piles of aspen logs were set up outside and stored for a period of four months (July 9 to November 14, 2001). One of the piles was treated with a biological solution to prevent fungal growth. The other one was stored without such treatment. Both piles contained non-debarked and partially debarked logs. Evaluation of sap stain development indicated that all logs had been colonized by staining fungi with an average stain coverage of 9.37 to 57.18% and maximum stain penetration of 3.58 to 7.27 cm over the log cross-section. The variation of fungal colonization depended on log treatment and bark condition. The most effective way to prevent stain growth was with the combination of biological treatment and partial debarking. This was followed in effectiveness by biological treatment and no debarking, no treatment and partial debarking, and, finally, no treatment and no debarking. A series of strandboard was prepared from fresh and aged aspen logs. It was observed that all boards made from stored logs were statistically comparable to or superior to the control boards made from fresh aspen logs. The boards made from treated/partially debarked and untreated/non-debarked logs were statistically comparable to each other except for the higher wet MOR for the former. In addition, both board types were stronger than other boards in terms of IB and water resistance. Compared to control boards, the stronger boards in terms of water resistance were also made from biologically treated/non-debarked and untreated/partially debarked logs. Some individual stained strands were observed on the finished board surface, which could affect board appearance if the wood had been highly attacked by fungi. Less staining was found in the boards prepared from biologically treated and partially debarked logs, as compared to other stored logs.
Particleboard
Chemistry - Wood
Bonding
Logs - Storage
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Effect of wood chemical characteristics on bond quality. Part II. Outdoor storage of shavings and its impact on particleboard performance

https://library.fpinnovations.ca/en/permalink/fpipub42196
Author
Wang, Xiang-Ming
Wan, Hui
Date
March 2003
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Xiang-Ming
Wan, Hui
Contributor
Canada. Canadian Forest Service
Date
March 2003
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Particle boards
Bonding
Series Number
CFS No. 29
Location
Sainte-Foy, Québec
Language
English
Abstract
Particleboard
Chemistry - Wood
Bonding
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Evaluation of quality control tests for OSB plants

https://library.fpinnovations.ca/en/permalink/fpipub38442
Author
Calvé, Louis R.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Calvé, Louis R.
Date
March 1992
Material Type
Research report
Physical Description
36 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Testing
Test methods
Quality control
Qualitative analysis
Phenols
Particle boards
Oriented strandboard
Series Number
Forestry Canada No. 48
3815M344
E-1278
Location
Ottawa, Ontario
Language
English
Abstract
Phenol Formaldehyde
Particleboard
OSB
Quality control
Test Methods
Testing
Non-Destructive Testing
Internal Bond
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Fibreglass reinforced particleboards

https://library.fpinnovations.ca/en/permalink/fpipub38529
Contributor
Forintek Canada Corp.
Date
March 1981
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Contributor
Forintek Canada Corp.
Date
March 1981
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Particle boards
Bonding
Series Number
Forestry Canada no. 34
E-1521
Location
Ottawa, Ontario
Language
English
Abstract
Reinforced particleboards were made at several panel densities and with several resin treatments of the fibreglass reinforcing scrims. It was the inclusion of fibreglass scrims that dramatically increased the strength and stiffness of particleboards especially when the overall panel density was above 0.7 gm/cc. Of the various locations tested, reinforcement at the extreme surfaces was found to be the best. Treatment of the fibreglass with phenolic resins produced some improvement in wood-fibreglass bonding, however the addition of a coupling agent significantly improved the fibreglass fixation.
Particleboard
Fibreglass scrims
Wood-fibreglass bonding
Documents
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Formaldehyde emission detection from Canadian panel products

https://library.fpinnovations.ca/en/permalink/fpipub5632
Author
Aston, R.
Lethbridge, B.
Date
March 1986
Edition
38091
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Aston, R.
Lethbridge, B.
Date
March 1986
Edition
38091
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Testing
Canada
Particle boards
Series Number
CFS project no. 1
Project no.3810009
E-283
Location
Ottawa, Ontario
Language
English
Abstract
Formaldehyde Emissions - Testing
Particleboard - Formaldehyde Emissions - Testing
Documents
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43 records – page 1 of 5.