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18 records – page 1 of 2.

Density profiles and swelling properties of commercial OSB

https://library.fpinnovations.ca/en/permalink/fpipub41679
Author
Sean, Trek
Date
March 1995
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Date
March 1995
Material Type
Research report
Physical Description
54 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Swelling
Oriented strandboard
Series Number
E-2504
Location
Sainte-Foy, Québec
Language
English
Abstract
OSB
Density Profiles
Swelling Properties
Commercial OSB
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Effect of processing parameters on the development of internal bond strength in OSB panels

https://library.fpinnovations.ca/en/permalink/fpipub41946
Author
Sean, Trek
Date
March 2000
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Contributor
Canada. Canadian Forest Service
Date
March 2000
Material Type
Research report
Physical Description
7 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Mechanical properties
Processing
Parameters
Panels
Oriented strandboard
Series Number
Canadian Forest Service No. 27
E-3414
Location
Sainte-Foy, Québec
Language
English
Abstract
The work described in this report involved examination of the development of IB strength in OSB panels as a function of pressing parameters and mat moisture content. Response surface methodology (RSM) was used in the design the experimental work employing a Box-Behnken design with four (4) variables (platen temperature, pressing time, moisture content (MC) of the face layers of the mat and face/core ratio). Results showed that the relationships between the study parameters and IB strength fit very well the form of quadratic polynomials. Within the limits studied, it was found that increasing the pressing time and/or temperature could significantly improve the IB strength in OSB panels. Also, the study showed that bonding strength is improved by reducing mat moisture content. It recommended that the study proceed as planned, using a thermal analysis technique (DSC) to compare the chemical reactions and curing behaviour of some commercial PF resins. Also, lap-shear tests, will be employed to evaluate strength development of the adhesives as function of time, temperature and furnish moisture content. It also recommended that a bench-making will be proceeded at laboratory and mill scale to verify the model.
OSB Panels
Internal bond strength
Processing parameters
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Energy recovery to improve OSB panel quality and reduce VOC emissions

https://library.fpinnovations.ca/en/permalink/fpipub39298
Author
Sean, Trek
Barry, A.
Deng, James
Date
February 2010
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Barry, A.
Deng, James
Contributor
Canada. Canadian Forest Service.
Date
February 2010
Material Type
Research report
Physical Description
3 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
VOC Volatile Organic Compounds
Strandboards
Recovery
Oriented strandboard
Orientation
Series Number
Canadian Forest Service No. 27
E-4632
Location
Québec, Québec
Language
English
Abstract
Energy recovery
Oriented strandboard - Manufacture
VOC emissions
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Extending wood fibre supplies for oriented strandboard (OSB) production

https://library.fpinnovations.ca/en/permalink/fpipub42216
Author
Sean, Trek
Date
September 2003
Material Type
Research report
Field
Wood Manufacturing & Digitalization
. Forintek Canada Corp. June 1999. Sean, Trek. Effect of Processing Parameters on the Development
Author
Sean, Trek
Date
September 2003
Material Type
Research report
Physical Description
20 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Populus
Oriented strandboard
Hybrid
Series Number
General Revenue 2682
Location
Sainte-Foy, Québec
Language
English
Abstract
OSB - Production
Hybrid poplar
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Heat recovery from dryer and press exhaust

https://library.fpinnovations.ca/en/permalink/fpipub39039
Author
Sean, Trek
Date
March 2007
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Date
March 2007
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Recovery
Panels manufacturing
Panels
Heat
Series Number
General Revenue
5327
Location
Québec, Québec
Language
English
Abstract
Panels - Manufacture
Heat
Recovery
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Impact of drying on flake degradation

https://library.fpinnovations.ca/en/permalink/fpipub5703
Author
Sean, Trek
Cheng, L.
Date
February 2007
Edition
39018
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Flaking Parameters and Strand Shape. Forintek Canada Corp. Project 4004 Report. Sean, Trek. 2005
Author
Sean, Trek
Cheng, L.
Date
February 2007
Edition
39018
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strandboards
Oriented strandboard
Orientation
Drying
Series Number
General Revenue Report Project No. 4487
4487
Location
Québec, Québec
Language
English
Abstract
Strand drying is a necessary step in OSB production, as a means to reduce furnish moisture content to an acceptable level, which in part depends on the resin used. It has been mentioned that beside wood degradation which causes fines generation and fibre surface oxidation, other problems such as VOC emissions, excess energy consumption and variability in moisture content of strands may occur as a result of strand drying. This work involved the characterisation of strands from six commercial OSB mills. The methodology adopted in this study was to characterize strands collected before and after drying, as well as information on operation conditions in order to relate the effects of drying on the overall strand degradation. Strand quality was evaluated before and after drying in terms of the following characteristics:
Strand size distribution;
Strand surface oxidation;
Strand tensile strength. Results on classification of wet strands showed very large variability in width distribution ranging from very narrow to very wide. Results on size distribution of dry strands revealed that strand degradation characteristics appear dependent on individual mill strategy that can vary considerably from mill to mill. The study showed that conveyer dryers caused the least strand size reduction of the three dryer types included in the study. Triple and single pass dryers caused similar amounts of strand size reduction. Test results also showed that drying conditions e.g. drying temperature, drying time and final moisture content played a key role in strand size degradation. Overall strand size classification results showed no clear pattern suggesting that the drying process is not the only factor responsible for post-strander fines generation. Other factors such as strand damage incurred during strand manufacturing and mechanical damage during strand handling may also play substantial roles in the reduction of strand size observed in this study. The drying operation had little effect on tensile strength of the strands. However, measurement of strand surface contact angles revealed that surface oxidation is taking place during strand drying. For all strand samples, the contact angles measured on strands sampled before drying were lower than the contact angles measured after drying. The study clearly indicated that thermal degradation is not related to dryer type but to other drying conditions, namely the combination of temperature and residence time. Thus it is possible that strands dried for a relatively long time at lower temperatures can incur more surface oxidation that strands dried at higher temperatures, but for a much shorter time.
Drying
Oriented strandboard - Manufacture
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Impact of drying on flake degradation

https://library.fpinnovations.ca/en/permalink/fpipub5997
Author
Sean, Trek
Cheng, L.
Date
March 2005
Edition
42376
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Cheng, L.
Date
March 2005
Edition
42376
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strandboards
Oriented strandboard
Orientation
Drying
Series Number
General Revenue
Simple Progress Report
4487
Location
Sainte-Foy, Québec
Language
English
Abstract
Oriented strandboard - Manufacture
Drying
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Optimization of a newly developed process of making composites from waste wood fibre and mixed plastics

https://library.fpinnovations.ca/en/permalink/fpipub41747
Author
Sean, Trek
Date
March 1996
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Date
March 1996
Material Type
Research report
Physical Description
26 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Recycling
Plastics
Panels
Series Number
E-2926
Location
Sainte-Foy, Québec
Language
English
Abstract
Composite panels were manufactured from waste wood and recycled, mixed plastics. The effects of key processing parameters including wood fibre content on the mechanical and physical properties of panels produced were evaluated. Chemical treatments of the recycled wood fibre were conducted to improve the dispersion and adhesion of fibres within the matrix. The morphology of the plastic/wood interface was examined critically using a scanning electron microscope (SEM). Experimental work on the hot processing of panels showed that a commercial high speed mixer, (K-mixer) failed to produce a uniform dispersion of the composite materials. The wet process studied presented a good option fro making composites from recycled wood and plastics. A significant improvement in bending strength and stiffness was observed for panels containing up to 60% wood fibre. However, because of the large amount of water required for the wet process, this technique was considered a less desirable approach. Dry processing appears to be the most environmentally sound method and produced panels with mechanical properties similar to those produced by the wet process. The SEM study on fracture interfaces elucidated the relationships between wood fibre/plastic matrix and mechanical properties of panels. Chemical treatments of recycled wood fibres were found to relieve the compatibility problem between wood and plastic, improving the adhesion between these components. Experimental work has also revealed that a commercial microwave generator can be employed to preheat mats prior to hot pressing.
Waste Wood Fibre
Mixed Plastics (Recycled)
Composite panels
Documents
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OSB adhesives hot pressing - model : cure kinetic module

https://library.fpinnovations.ca/en/permalink/fpipub41910
Author
Sean, Trek
Date
January 1999
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Contributor
Canada. Canadian Forest Service
Date
January 1999
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Simulation
Pressing
Hot press
Series Number
CFS Simple Progress Report
E-3351
Location
Sainte-Foy, Québec
Language
English
Abstract
Hot pressing
Simulation Model
Documents
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OSB adhesives hot pressing - model : cure kinetic module

https://library.fpinnovations.ca/en/permalink/fpipub42028
Author
Sean, Trek
Date
March 2001
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Sean, Trek
Contributor
Canada. Canadian Forest Service
Date
March 2001
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Simulation
Pressing
Hot press
Series Number
Canadian Forest Service No. 27
E-3532
Location
Sainte-Foy, Québec
Language
English
Abstract
The work described in this report involved examination of the development of IB strength in OSB panels as a function of pressing parameters and mat moisture content. Response surface methodology (RSM) was used in the design the experimental work employing a Box-Behnken design with four (4) variables (platen temperature, pressing time, moisture content (MC) of the face layers of the mat and face/core ratio). Results showed that the relationship between the study parameters and IB strength fits very well the form of quadratic polynomials. Within the limits studied, it was found that increasing the pressing time and/or temperature could significantly improve the IB strength in OSB panels. Also, the study showed that bonding strength is improved by reducing mat moisture content. The work is also involved with the effect of resin kinetic on the bonding strength development. Several commercial phenol formaldehyde core resin were selected and characterised with a thermal analysis technique (DSC) to compare the chemical reactions and curing behaviour. The automated bonding evaluation apparatus or slap-shear test was employed to evaluate strength development of the selected adhesives as function of time, temperature and furnish moisture content. Test results showed that within the limits studied, increasing the pressing time and/or temperature could significantly improve the bonding shear. Also, the study showed that furnish moisture content and energy activity of the resin have limited effect on the bonding strength. The study on the development IB strength as a function of resin energy activity, pressing temperature, pressing time and mat moisture content at the face layers, showed a significant effect of pressing time and temperature on the IB strength of the panel. Also resin with high activity energy was found to provide panel with low IB.
Hot pressing
Simulation Model
Documents
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18 records – page 1 of 2.