Effects of Pressing Temperature and Particle Size on Bark Board Properties Made from Beetle-Infested Lodgepole Pine (Pinus contorta) Barks

Gupta, Gireesh Kumar; Yan, Ning; Feng, Martin

doi:10.13073/0015-7473-61.6.478

Cited by 20 publications

(19 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The voids directly caused inefficiency of the inter-fiber bonding (Ashori and Nourbaksh, 2008). For fine and mixed particles, the chance of tighter packing and closer contact between the particles is greater, which may positively contribute to the boards (Gupta et al, 2011).…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Properties of Empty Fruit Bunch Oil Palm (Elaeis guineesis) Composite Boards at Different Densities and Resin Contents

Wahab¹,

Marlia²,

Mustafa³

et al. 2015

J. of Plant Sciences

View full text Add to dashboard Cite

Properties of composite boards made from oil palm Empty Fruit Bunch (EFB) at different density and resin content were investigated. The EFB was refined using fiber cutter and particle's crusher. Hardeners and wax were added at 1 and 3% during the mixing process. Boards of densities 500, 600 and 700 kg mG 3 were produced with resin urea formaldehyde at 10, 12 and 14%, respectively. The boards were stored in a conditioning chamber set at 20±2°C and 65% relative humidity before undergoing subsequent testing. Testing procedure was done in accordance with EN Standard and specifications. The results indicated increases across the board physical and mechanical properties. The highest MOR and MOE value achieved in this study were 22.91 and 2059.56 N mmG 2 . Highest value for internal bonding was 0.98 N mmG 2 , meanwhile for edge and face screw withdrawal, 467.47 and 512.37 N mmG 2 . Boards with 700 g cmG 3 density and 14% resin content met all the requirement needed according to standard exercised. Board with the lowest performance was observed using microscopy machine to study the resin-fiber bonding property. Resin and fiber in the board intacted closely but there were voids appeared at the cross-section of the board 500 g cmG 3 density with 10% resin content, suggesting moisture had penetrated into the board via the open spaces and attacked the linkages existed, thus cause the board to have a low property. Thermogravimetric analysis was done to study the thermal stability of the boards manufactured. The maximum rate of decomposition for the OPEFB boards occurred at 380.83°C.

show abstract

Section: Mechanical Propertiesmentioning

confidence: 99%

Properties of Empty Fruit Bunch Oil Palm (Elaeis guineesis) Composite Boards at Different Densities and Resin Contents

Wahab¹,

Marlia²,

Mustafa³

et al. 2015

J. of Plant Sciences

View full text Add to dashboard Cite

show abstract

“…Earlier researches have demonstrated the feasibility of bark as raw materials to produce binderless fiberboards (Chow 1975;Wellons and Krahmer 1973). However, the requirement for high pressing temperature as one of the main obstacles limited their application and development (Chow 1972;Gupta et al 2011). Recently, binderless fiberboards made from refined bark of black spruce have been obtained.…”

Section: Introductionmentioning

confidence: 99%

A review of preparation of binderless fiberboards and its self-bonding mechanism

2015

View full text Add to dashboard Cite

show abstract

“…The voids directly caused inefficiency of the inter-fibre bonding [25]. For fine and mixed particles, the chance of tighter packing and closer contact between the particles is greater, which may positively contribute to the boards [26].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Properties of Composite Boards Properties from Elaeis guineensis Empty Fruit Bunch

2019

BJoST

View full text Add to dashboard Cite

This study focussed on composite boards made from Elaeis guineesis empty fruit bunches (EFB). The EFB supplied by a smallholder oil palm planter in Kuala Krai, Kelantan. The fibre cutter and crusher were used in turning the EFB into smaller size particles. They were screened with four-tier sieve shaker used to remove the oversize particles and impurities present. Hardeners and wax added during the mixing process at 1% and 3%. Boards of three (3) different densities were produced using urea-formaldehyde as the bonding agent. The boards produced later conditioned in a chamber set at 20±2°C and 65% relative humidity. The testing procedure set by EN Standards and specifications were followed. The tests results showed the EFB composite boards possessed excellent physical and mechanical properties. The MOR, MOE and internal bonding of the boards were 22.91 N/mm2, 2059.56 N/mm2, and 0.98 N/mm2. The internal bonding for both edge and face screw withdrawal were 467.47 N/mm2, and 512.37 N/mm2 respectively. Boards with 700 g/cm3 density and 14% resin content met all the requirement needed according to standard exercised. Scanning electron microscope images of low-performance boards showed the resin and fibre in the board interacted closely, but voids appeared at the cross-section suggesting moisture penetrated the board via the open spaces and attacked the linkages existed, thus cause the board to have a low property. The thermal stability of the boards manufactured studied using the Thermogravimetric Analysis.

show abstract

Effects of Pressing Temperature and Particle Size on Bark Board Properties Made from Beetle-Infested Lodgepole Pine (Pinus contorta) Barks

Cited by 20 publications

References 0 publications

Properties of Empty Fruit Bunch Oil Palm (Elaeis guineesis) Composite Boards at Different Densities and Resin Contents

Properties of Empty Fruit Bunch Oil Palm (Elaeis guineesis) Composite Boards at Different Densities and Resin Contents

A review of preparation of binderless fiberboards and its self-bonding mechanism

Properties of Composite Boards Properties from Elaeis guineensis Empty Fruit Bunch

Contact Info

Product

Resources

About