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Accelerated durability testing of wood-base fiber and particle panel materials

https://library.fpinnovations.ca/en/permalink/fpipub1494
Author
Unligil, H.H.
Date
March 1982
Edition
37999
Material Type
Research report
Field
Wood Manufacturing & Digitalization
considerable interest has developed in expanding the market by producing panels suitable for new areas
Author
Unligil, H.H.
Date
March 1982
Edition
37999
Material Type
Research report
Physical Description
7 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Panels
Materials
Series Number
CFS/DSS project no 12/81-82
3-65-57-016
E-23
Location
Ottawa, Ontario
Language
English
Abstract
Composite materials - Durability
Wood-based panels
Wood-based panels - Durability
Wood Based Composites
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Collaborative development of novel hollow core composite panels for value-added secondary applications

https://library.fpinnovations.ca/en/permalink/fpipub2598
Author
Deng, James
Date
March 2009
Edition
39192
Material Type
Research report
Field
Wood Manufacturing & Digitalization
and University of Toronto to develop and test a range of hollow core composite sandwich panels based
Author
Deng, James
Contributor
Natural Resources Canada. Canadian Forest Service
Date
March 2009
Edition
39192
Material Type
Research report
Physical Description
47 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Panels
Series Number
Value to Wood No. FCC 07 ; 6002
Location
Québec, Québec
Language
English
Abstract
A research project was carried out in collaboration with researchers from both University of British Columbia and University of Toronto to develop and test a range of hollow core composite sandwich panels based on lignocellulosic materials that can extend the current applications of wood composite products such as high density particleboard and fibreboard (hardboard and MDF). With proper engineering design and unique light weight structural features, wood fibre resources will be more effectively used and the performance of each component can be maximized in these types of novel composite panels. The outcome of this project is the development of Canadian-made light weight panels containing various low density cores, including honeycomb, low density wood wool composites and cup-shaped thin fibreboard, and high density surface panels, including plywood, hardboard and high density fibreboard (HDF) for the applications in ready to assemble (RTA) modular furniture, home and commercial cabinetry and door panels. The work completed at Forintek included:
Development of low density wood wool panels (LCD) as the core material for the sandwich panels.
Development of cup-shaped high density fibreboard (CHDF) as the core material
Evaluation of edgewise and flat compression strength and creep behaviour of honeycomb sandwich panels fabricated by UBC.
Development of book shelf panels using four different core materials.
Performance evaluation of the book shelves developed. The results of the experimental work suggest that:
Low density composite core materials can be made by the technology developed at Forintek laboratory using low density poplar wood wool and high viscosity phenol and formaldehyde resin with steam injection hot pressing technology. However, the strength of the panels was relatively low comparing to conventional low density particleboard, OSB or fibreboard.
The experimental work carried out on the cup-shaped high density fibreboard (CHDF) show the potential for developing various light weight core materials using current MDF process technology. The internal bond strength (IB) and water absorption (WA) of the cup-shaped panels were strongly correlated with panel density. IB increased and WA reduced when increasing the panel density. The flexibility of the technology could optimize the properties and performance of CHDF through manipulating the fibre refining process, profile design, resin system and hot pressing strategy. It shows that CHDF is a good alternative material to Kraft paper honeycombs for the manufacture of sandwich panels for higher strength and performance applications.
Test results from sandwich panels made of cup-shaped fibreboard core and HDF surface show that the nominal density of the cup-shaped core was one of the most important process parameters to adjust for the improvement of the sandwich panel properties. The flat compressive modulus, flat tensile strength and short-beam strength increased when increasing the nominal density of the core panels. Furthermore, the overall density of the sandwich panels were only fractionally increased by increasing the nominal density of the core panels due to the cup-shaped shape of the core panels. It suggests that higher nominal core density should be used when higher mechanical strength of the panels is required.
To a lesser extent, fibre type in the core panels also affects the sandwich panel properties. Longer wood fibres are recommended for use in the manufacture of the core panels.
The results of the experiment also show that increasing the thickness of the surface HDF panels increased the bending strength of the sandwich panels substantially. However, the overall density also increased.
Comparing shear properties of the four different sandwich panels developed by Forintek, we can identify that the ultimate shear strengths were different for different core materials. The sandwich panel made from polycarbonate core had the highest shear strength (0.744 MPa) followed by the panel made with CHDF (0.497 MPa). The sandwich panel made from low density wood wool core had much lower shear strength (0.012 MPa) which is lower than the paper honeycomb sandwich panels previously made by UBC with the same surface and core thickness (0.024 MPa).
The sandwich panels made with high density cup-shaped fibreboard had significantly higher core shear modulus (92.0 MPa) than any other sandwich panel studied in this project.
Hollow core
Composite panels
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Development of an improved method for analysis of panels with low formaldehyde emission

https://library.fpinnovations.ca/en/permalink/fpipub39223
Author
Dechamplain, F.
Date
March 2009
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Development of an Improved Method for Analysis of Panels with Low Formaldehyde Emission
Author
Dechamplain, F.
Contributor
Canadian Forest Service
Date
March 2009
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Pollution
Panels
Air pollution
Air
Series Number
Canadian Forest Service No. 20
5763
Location
Québec, Québec
Language
English
Abstract
In April 2008, the State of California adopted an airborne toxic control measure (ATCM) to reduce formaldehyde emissions from composite wood products, proposed by the California Air Resources Board (CARB), part of the California Environmental Protection Agency. Phase 1 started in January 2009, and at the end of the implementation, in July 2012, formaldehyde emission limits will range between 0.05 and 0.13 ppm, depending on the type of products, based on the ASTM E 1333 Large Chamber Method. These new limits are in the order of the limits of detection of the current analytical methods presently used, and rendered the chromotropic acid reaction, on which the ASTM E 1333 is based, with a limit of detection of 0.01 ppm less precise. An alternative method to determine formaldehyde concentration in air has been developed to be used as part of the ASTM E1333 Large Chamber Method. 60 L of air are sampled through an impinger containing an acetylacetone-ammonia solution. The solution is then heated, and analyzed by fluorimetry using a Turner Quantech filter fluorometer equipped with a NB430 excitation filter and a SC500 emission filter. The test method is inexpensive, easy to use, compatible with the Large Chamber, Perforator and Desiccator Methods, and is very sensitive. The minimum detection limit (MDL) and the limit of quantification (LOQ) of this analytical method are 0.0004 and 0.0013 ppm, respectively.
Air pollution
Formaldehyde
Panels
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Development of fire retardant composite panels

https://library.fpinnovations.ca/en/permalink/fpipub39220
Author
Wang, Xiang-Ming
Zhang, Yaolin
Date
March 2009
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Xiang-Ming
Zhang, Yaolin
Date
March 2009
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Resistance
Panels
Series Number
Canadian Forest Service No. 18
5764
Location
Québec, Québec
Language
English
Abstract
Panels - Fire resistance
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Détermination des paramètres optimaux de transformation pour le renforcement des joints de colle dans les feuillus

https://library.fpinnovations.ca/en/permalink/fpipub39191
Author
Tremblay, Carl
Date
March 2009
Material Type
Research report
Field
Sustainable Construction
Author
Tremblay, Carl
Contributor
Natural Resources Canada. Canadian Forest Service
Date
March 2009
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Panels
Joints
Series Number
Valeur au bois
6298
Location
Québec, Québec
Language
French
Abstract
La production de meubles, d’armoires de cuisine et autres produits d’apparence en bois massif nécessite la fabrication de panneaux de type lamellé-collé où des bandes de bois de largeur variable sont collées sur chant. De nombreux manufacturiers de produits d’apparence utilisent une déligneuse pour la préparation des bandes à coller sur chant. Toutefois, certaines usines procèdent à cette opération à l’aide d’une moulurière. Un porte-outils rotatif muni de couteaux est alors utilisé pour le rabotage de la surface sur chant des pièces de bois lors de leur passage à la moulurière. Peu d’informations sont disponibles actuellement au sujet de l’ajustement des paramètres de moulurage permettant l’obtention d’une surface sur chant de qualité collage. L’objectif principal du projet est de déterminer les paramètres optimaux de rabotage à la moulurière permettant l’obtention de joints de colle de qualité chez des panneaux de type lamellé-collé en bois feuillus. Les objectifs spécifiques sont 1) d’étudier l’impact de la variation des paramètres de moulurage sur la qualité des joints de colle (largeur et résistance) et 2) de découvrir un indicateur d’usinage mesurable relié à la dégradation de la qualité des joints de colle. Le matériel utilisé à l’étude de l’impact de la variation des paramètres de moulurage sur la qualité des joints de colle de panneaux a consisté en des sciages d’épaisseur 4/4 po. (2,5 cm) de bois d’érable à sucre, de chêne rouge, de pin blanc et de cerisier. Cinq vitesses d’alimentation et deux angles des couteaux ont été considérés dans l’étude. Pour chaque essence, les pas d’usinage et angles de couteaux permettant l’obtention de joints de colle de faible apparence ont été établis : angle des couteaux de 12o pour l’érable à sucre, le chêne rouge et le cerisier, angle de 20o pour le pin blanc, pas d’usinage inférieur à 2,3 mm pour le cerisier, inférieur à 3,6 mm pour l’érable à sucre et le pin blanc, inférieur à 5,7 mm pour le chêne rouge. Le bois d’érable à sucre d’épaisseur 4/4 po. a été utilisé pour la recherche d’un indicateur permettant à l’opérateur de détecter une perte de qualité au rabotage sur chant se traduisant par des joints de colle de moindre qualité des panneaux à produire. Des indicateurs potentiels tels que le type de copeaux, les émissions sonores et la consommation électrique du porte-outils rotatif de la moulurière ont été considérés. Le projet n’a pas permis d’identifier clairement un indicateur mesurable relié à la dégradation du rabotage sur chant. Toutefois, des études additionnelles devraient porter sur les émissions sonores. Finalement, les résultats du test laissent entrevoir une durée de vie relativement longue des couteaux utilisés au simple rabotage sur chant de pièces d’épaisseur commune (4/4 po.) pour la fabrication de panneaux de type lamellé-collé.
Appearance products
Panels - Joints, Glued
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Les panneaux légers : une avenue vers l'innovation de produits

https://library.fpinnovations.ca/en/permalink/fpipub39837
Date
June 2009
Material Type
Pamphlet
Field
Sustainable Construction
Date
June 2009
Material Type
Pamphlet
Physical Description
8 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Secondary manufacturing
Panels
Furniture
Series Number
E-4882
Location
Québec, Québec
Language
French
Abstract
Profil technologique ; TP-2009-01-F
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Status of energy use in the Canadian wood products sector

https://library.fpinnovations.ca/en/permalink/fpipub5625
Author
Meil, J.K.
Bushi, L.
Garrahan, Peter A.
Aston, R.
Gingras, A.
Elustondo, Diego
Date
March 2009
Edition
37935
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Meil, J.K.
Bushi, L.
Garrahan, Peter A.
Aston, R.
Gingras, A.
Elustondo, Diego
Contributor
Natural Resources Canada. Canadian Industry Program for Energy Conservation.
Date
March 2009
Edition
37935
Material Type
Research report
Physical Description
59 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saw mills
Power supply
Energy
Plywood manufacture
Plywood
Panels manufacturing
Canada
Panels
Series Number
Project No. 6014
W-2620
Location
Vancouver, British Columbia
Language
English
Abstract
This energy use status report focuses on five commodity products produced within the broadly defined wood products sector: softwood lumber, softwood plywood, oriented strand board, particleboard and medium density fibreboard. The study examines gross facility manufacturing energy use and puts this energy use in context by relating it to upstream energy required to procure raw material and energy inputs. In addition, this work tracks both direct and indirect carbon emissions by fuel type and accounts for the carbon sequestered in wood products and thus, presents a carbon balance for each finished product at the plant gate. Using a life cycle analysis approach, this report documents the cradle-to-gate energy use in the production of the five commodities. Data reported here can assist each industry segment in better understanding material and energy use for the purpose of reducing energy consumption in the future.
Energy resources
Panels - Manufacture - Power requirements
Plywood - Manufacture - Power requirements
Sawmilling - Power requirements
Chapters include resource extration, forest managemetn, resource transportation, softwood lumber manufacture, softwood plywood manufacture, oriented strand board manufacture, composite panel board manufacture, gross energy and carbon balance summary and energy use reduction potential in wood product manufacturing.
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Time to decay under fluctuating conditions

https://library.fpinnovations.ca/en/permalink/fpipub41411
Author
Clark, Jean E.
Date
March 2009
Material Type
Research report
Field
Sustainable Construction
in wood-based panels when the panels are exposed to a range of fluctuating moisture contents
Author
Clark, Jean E.
Contributor
Canada. Canadian Forest Service.
Date
March 2009
Material Type
Research report
Physical Description
3 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Panels
Wood decay
Series Number
Canadian Forest Service No. 16
W-2654
Location
Vancouver, British Columbia
Language
English
Abstract
The data generated in this project will provide an indication of the time required for initiation of strength loss in wood-based panels when the panels are exposed to a range of fluctuating moisture contents and temperatures.
Panels - Decay
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8 records – page 1 of 1.