scholarly journals Physico-Mechanical Properties of Particleboards Produced from Locally Sourced Materials

2018 ◽  
Vol 39 ◽  
pp. 112-118 ◽  
Author(s):  
Peter Pelumi Ikubanni ◽  
Adekunle Akanni Adeleke ◽  
Adeolu Adesoji Adediran ◽  
Olayinka Oluwole Agboola
Keyword(s):  
Rice Husk ◽  
Urea Formaldehyde ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Weight Percentage ◽  
Saw Dust ◽  
Percentage Ratio ◽  
Internal Bonding Strength ◽  
Composite Samples ◽  
Indoor And Outdoor

In this study, particleboard was produced from the blend of sawdust and rice husk with the inclusion of metallic chips and adhesives. Urea formaldehyde and gelatinous starch were used as adhesives. Particleboards (10 mm thickness) were made from varying weight percentage ratio of saw dust and rice husk using pressure in the neighbourhood of 3 N/mm2. The particleboard was tested to determine the density, modulus of rupture (MOR), modulus of elasticity (MOE) and internal bonding strength (IBS). The density of the particleboards developed varies from 762.86 to 801.60 kg/m3. The moisture content of the samples varied between 9.22% and 9.98%. The MOR, MOE and IB values varied between 5.08 MPa and 26.08 MPa; 75.38 MPa and 412.4 MPa; and 0.013 MPa to 0.07 MPa, respectively. Composite samples C, E and H values for MOR, MOE and IBS gave significant results which met with the EN, ANSI A 208.1 and USDA standards. Hence, the admixture of rice husk and sawdust together with UF adhesive will be suitable in producing particleboard that could be useful for indoor and outdoor purposes.

scholarly journals Mechanical Properties of Particleboard using Acacia Mangium Wood Particles Binded With Seaweed-Based Adhesives

2021 ◽  
Vol 2129 (1) ◽  
pp. 012001
Author(s):  
K C Liew ◽  
A R Samin
Keyword(s):  
Mechanical Properties ◽  
Bonding Strength ◽  
Urea Formaldehyde ◽  
Brown Seaweed ◽  
Acacia Mangium ◽  
Modulus Of Rupture ◽  
Bending Test ◽  
Internal Bonding ◽  
Wood Particles ◽  
Internal Bonding Strength

Abstract The purpose of this study was to evaluate the mechanical properties of particleboards made from Acacia mangium wood particles binded with three different types of seaweed-based adhesive. Red seaweed (RS), brown seaweed (BS) and green seaweed (GS) were used as the seaweed-based adhesives., while particleboard using urea formaldehyde (UF) adhesive was produced as control. Adhesives and wood particles were mixed and then undergone mat-forming, pre-pressing, hot-pressing and conditioning process. The test pieces for bending test (Modulus of Elasticity, MOE; Modulus of Rupture, MOR), and internal bonding strength (IB) were cut into size according to JIS A 5908: 2003. From mechanical properties results attained, for internal bonding strength test, all boards using RS, BS and GS adhesives were found to be significantly different at p≤0.05. Apart from that, RS adhesive showed highest MOE and MOR at 529.4259 N/mm2 and 1.7900 N/mm2, respectively. As a conclusion, the mechanical properties of particleboard using RS, BS, and GS adhesives showed RS stands out as the better adhesive among them which have significant effects on its strength.

scholarly journals Straw based particleboard bonded with composite adhesives

BioResources ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 464-476
Author(s):  
Yanhua Zhang ◽  
Jiyou Gu ◽  
Haiyan Tan ◽  
Mingwei Di ◽  
Libin Zhu ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Photoelectron Spectroscopy ◽  
Modulus Of Elasticity ◽  
Bonding Strength ◽  
Urea Formaldehyde ◽  
Formaldehyde Emission ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Thickness Swelling ◽  
Internal Bonding Strength

Environmentally friendly particleboard was prepared with wheat straw, an inexpensive material. The particleboard was produced by a mixing process, using a composite adhesive comprised of urea-formaldehyde (UF) adhesives and EPU. The performance of the board was evaluated by measuring internal bonding strength (IB), thickness swelling, modulus of rupture (MOR), modulus of elasticity (MOE), and formaldehyde emission. The experimental results showed that maximum of dry and wet internal bonding strength, modulus of rupture, modulus of elasticity were 0.45MPa, 0.18MPa, 31.80MPa, and 5043MPa, respectively. The thickness swelling (TS2h) and thickness swelling (TS24h) were 3.9% and 10.7%, respectively. The composite adhesives and particleboards were measured by differential scanning calorimentry (DSC), dynamic mechanical analyzer (DMA), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM) measurements. The results indicated that the composite adhesive of UF/EPU could contribute to excellent mechanical, thermal, and water-resistant properties of the wheat straw particleboards.

scholarly journals Mechanical Properties of Commercial Particleboard from Rubberwood (Hevea Brasiliensis) and Recycle Mix-Tropical Wood with Different Board Density

2021 ◽  
Vol 3 (1) ◽  
pp. 41-44
Author(s):  
Nur Wafa Amalina Amali ◽  
Nor Yuziah Mohd Yunus ◽  
Wan Mohd Nazri Wan Abdul Rahman
Keyword(s):  
Mechanical Properties ◽  
Modulus Of Elasticity ◽  
Hevea Brasiliensis ◽  
Urea Formaldehyde ◽  
Wood Particle ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Board Density ◽  
Tropical Wood ◽  
Minimum Requirements

In this study, mechanical properties of commercially manufactured hybrid particleboard from mix-tropical wood and rubberwood with four different densities at 25mm thickness have been investigated. The particleboard sample cutting and testing was in accordance to EN312:2013. The density of particleboard is identified with interval of 10kg/m3 for different densities which include 660kg/m3, 670kg/m3, 680kg/m3 and 690kg/m3. Particleboards were made with the ratio of 40:60 for mix-tropical wood particle and rubberwood particle respectively. The particleboards were prepared with urea formaldehyde (UF) with E1 formulation with addition of wax and hardener.  Increment of 10kg/m3 density for each particleboard led to increase in internal bonding (IB), bending testing include modulus of rupture (MOR) and modulus of elasticity (MOE), surface soundness (SS) and screw edge (SE) withdrawal. It was found that with board increment of 10kg/m3, the improvement was not statically significant except that for MOR. All panels met the minimum requirements of standard.

scholarly journals Particleboard Manufactured from Rubberwood RRIM 2002 Clone Planted with Different Fertilizer Treatment

2019 ◽  
Vol 8 (2S4) ◽  
pp. 398-402
Keyword(s):  
Dimensional Stability ◽  
Cold Water ◽  
Urea Formaldehyde ◽  
Rubber Tree ◽  
Modulus Of Rupture ◽  
Normal Rate ◽  
Fertilizer Treatment ◽  
Internal Bonding ◽  
Japanese Industrial Standard ◽  
Npk Fertilizer

This work focus on the effects of SRF (Slow Release Fertilizer) + NPK fertilizer rates on the properties of rubberwood particleboards produced. The particleboards were fabricated using rubber tree trial clone RRIM 2002. RRIM 2002 clone still in trial plot with age of 4-year old and classified as Latex Timber Clone which estimated to produce large wood volume and also better latex yield. The properties of particleboard were categorized and evaluated based on fertilizer treatment applied on RRIM 2002 clone tree: T1 (SRF + NPK at normal rate), T2 (SRF + 1.5 x NPK at normal rate), T3 (SRF + 2.0 x NPK at normal rate) and T4 (SRF + 2.5 x NPK at normal rate, control (NPK at normal rate). The resin used for particleboard fabrication was urea formaldehyde (UF) (63.9% solid) type E1. The resin content is 10%. The thickness of board is 10 mm with density 700 kgm-3 . The particleboards were fabricated and assessed in accordance to Japanese Industrial Standard for Particleboard (JIS A 5908-2003). The properties that been assessed were on modulus of elasticity (MOE), modulus of rupture (MOR), internal bonding (IB), thickness swelling (TS) and water absorption (WA). From this study, it is found that fertilizer treatment influences the particle recovery and performance of particleboard especially on dimensional stability and internal bonding properties which significantly affected. The MOR and MOE of particleboard made from rubber trees that treated with SRF-NPK fertilizer showed better performance compared to that of with NPK fertilizer alone (control), however, the differences were not significant. In term of IB, no specific trend was observed. Lastly, for dimensional stability (TS and WA), particleboard produced from SRF-NPK fertilizer reduced the board stability when subjected to cold water soak.

scholarly journals Properties of Particleboard from Sawmill Wastes and Rubberwood (Hevea brasiliensis) with Different Board Thickness and Resin Content

2019 ◽  
Vol 8 (4) ◽  
pp. 6808-6812
Keyword(s):  
Mechanical Properties ◽  
Modulus Of Elasticity ◽  
Hevea Brasiliensis ◽  
Urea Formaldehyde ◽  
Resin Content ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Thickness Swelling ◽  
Board Thickness ◽  
European Standards

This study investigate the effect of the board thickness and resin content on the properties of particleboard. Single-layered sawmill wastes and rubberwood particleboards bonded with urea formaldehyde (UF) resins were manufactured. The boards were fabricated with three different board thicknesses (15, 18 and 25mm) at three different resin contents (7, 8 and 9%). The boards produced were evaluated for their modulus of elasticity (MOE), modulus of rupture (MOR), internal bonding (IB) and thickness swelling (TS) in accordance with the European Standards. Board thickness does affect the mechanical properties of particleboard. The study revealed that thinner boards gave higher MOE, MOR, IB and TS. No significant effects were found among three resin contents for MOE, MOR, IB and TS. It can be concluded that the particleboard made from mix tropical wood from sawmill waste and with rubberwood were suitable for particleboard manufacturing.

Development of Oriented Strand Board (OSB) Using Phenol Formaldehyde Adhesive

2014 ◽  
Vol 37 (2) ◽  
pp. 157-160
Author(s):  
Sagrika Behera ◽  
Seema Bhatt ◽  
Sneha Dobhal
Keyword(s):  
Bonding Strength ◽  
Oriented Strand Board ◽  
Phenol Formaldehyde ◽  
Solid Wood ◽  
Resin Content ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Poplar Wood ◽  
Screw Withdrawal ◽  
Internal Bonding Strength

Oriented strand board (OSB) was prepared using poplar wood with different resin content of phenol formaldehyde. It was observed that modulus of rupture and screw withdrawal of face and edge was more in oriented strand board as compare to solid wood. Internal bonding strength was very less in oriented strand board as compare to solid wood. It was also observed that most of the properties improve with increase in resin content.

scholarly journals Properties of Empty Fruit Bunches Eco-Composite Boards from Elaeis guineesis

2017 ◽  
Vol 5 (3) ◽  
pp. 1
Author(s):  
Razak Wahab ◽  
Mohd Tamizi Mustafa ◽  
Mohd Sukhairi Mat Rasat ◽  
Siti Marlia Mohd Don
Keyword(s):  
Maximum Rate ◽  
Urea Formaldehyde ◽  
Maximum Modulus ◽  
Resin Content ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Mixing Process ◽  
Conditioning Chamber ◽  
Empty Fruit Bunches ◽  
Screw Withdrawal

This studies investigated on the properties of eco-composite boards made from Elaeis guineesis empty fruit bunch. The empty fruit bunches (EFB) collected from a private Elaeis guineesis plantation in Selangor. The EFB refined using fiber cutter and particle crusher. Hardeners and wax added at 1% and 3% during the mixing process. Boards with densities of 700, 600 and 500 kg/m3produced using resin urea formaldehyde as the bonding agent at 10, 12 and 14%. The boards conditioned in a conditioning chamber set at 20±2°C and 65% relative humidity before undergoing subsequent testing. Preparation for boards and tests samples follows BS and EN Standards specifications. Maximum modulus of rupture (MOR) were 22.91 N/mm2and modulus of elasticity (MOE) 2059.56 N/mm2. The internal bonding recorded at 0.98 N/mm2, for the edge and face screw withdrawal were at 467.47 N/mm2 and 512.37 N/mm2 respectively. The boards with 700 kg/m3 density and 14% resin content met the required standard with good dimensional stability. In the thermogravimetric analysis the maximum rate of decomposition for the EFB boards occurred at 380.83°C. The board's overall properties are influence by the density and resin content applied.

Mechanical Properties of Composite Panels from Rice Husk

2011 ◽  
Vol 471-472 ◽  
pp. 59-61 ◽  
Author(s):  
Nur Afidah Abu Bakar ◽  
Suhaimi Muhammed
Keyword(s):  
Rice Husk ◽  
Urea Formaldehyde ◽  
Agricultural Residues ◽  
Resin Content ◽  
Modulus Of Rupture ◽  
Density Level ◽  
Composite Panels ◽  
Agricultural Residue ◽  
British Standard ◽  
Strength Tests

The study involving utilization of agricultural residue is gaining attention. This is an attempt to investigate the possibility of producing composite panels from rice husk (RH), an abundant source of agricultural residues. Composite panels were produced by mixing 1mm of rice husk with a commercial binder called urea formaldehyde at different density levels namely 650kg/m3, 700kg/m3 and 750kg/m3. Two types of resin content (10% and 12%) were used. Mechanical strength tests were performed on the panels conforming to British Standard (BS EN 310). Results obtained indicated that the modulus of elasticity (MOE) increased up to 1753.98MPa at 750kg/m3 density level with 12% resin content. Similarly, modulus of rupture (MOR) increased up to 8.08MPa with increase in panel density and amount of resin content. Thus, the potential of producing reasonably good composite panels from rice husk for specific end usage is very promising.

scholarly journals Pabrikasi Papan Komposit Berbahan Dasar Sabut Pinang (Areca catechu L.) dan Sabut Kelapa (Cocos nucifera L.)

PRISMA FISIKA ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 223
Author(s):  
Mentarie Resthu Putri ◽  
Irfana Diah Faryuni ◽  
Nurhasanah Nurhasanah
Keyword(s):  
Modulus Of Elasticity ◽  
Cocos Nucifera ◽  
Urea Formaldehyde ◽  
Modulus Of Rupture ◽  
Internal Bonding ◽  
Areca Catechu ◽  
Cocos Nucifera L

Pada penelitian ini telah dibuat papan komposit dengan bahan utama serat sabut pinang (Areca catechu L.) dan partikel sabut kelapa (Cocos nucifera L.). Bahan tambahan yang digunakan adalah urea formaldehyde (UF) sebagai matriks, parafin untuk penghambat air serta NH4Cl sebagai katalis. Papan komposit divariasikan sebanyak 3 sampel yaitu 100% serat sabut pinang, 100% partikel sabut kelapa dan 50% serat sabut pinang dicampur 50% partikel sabut kelapa. Papan komposit kemudian diuji sifat fisis dan mekanisnya dengan menggunakan standarisasi Japanese Industrial Standars (JIS) A 5908-2003. Hasil penelitian menunjukkan sampel yang terdiri dari 100% serat sabut pinang merupakan sampel yang paling baik yakni memiliki nilai kerapatan sebesar 616,82 kg/m3, kadar air sebesar 11,62%, daya serap air sebesar 182,87%, pengembangan tebal sebesar 59,65%, modulus of elasticity (MOE) sebesar 543,66 MPa, modulus of rupture (MOR) sebesar 9,24 MPa, dan internal bonding (IB)sebesar 0,05 MPa. Semua sampel dapat memenuhi standarisasi JIS A 5908-2003 untuk indikator uji kerapatan dan kadar air.Kata Kunci : komposit, sabut pinang, sabut kelapa

scholarly journals Mechanical properties and resistance to fungi and termite in particleboard of eucalyptus

2018 ◽  
Vol 24 (3) ◽  
Author(s):  
Vinícius Peixoto Tinti ◽  
Fabricio Gomes Gonçalves ◽  
Juarez Benigno Paes ◽  
Marina Donária Chaves Arantes ◽  
Michel Cardoso Vieira
Keyword(s):  
Phenol Formaldehyde ◽  
Urea Formaldehyde ◽  
Modulus Of Rupture ◽  
Mechanical Resistance ◽  
Internal Bonding ◽  
Wood Residue ◽  
Postia Placenta ◽  
Eucalyptus Wood ◽  
Two Temperatures ◽  
Dry Wood

The objective of this study was to evaluate the mechanical resistance and resistance to degrading agents in particleboard with eucalyptus wood residue and Urea-Formaldehyde, Phenol-Formaldehyde and Tannin-Formaldehyde adhesives at two temperatures (120 ºC and 140 ºC). The panels were produced in the dimensions of 40 cm × 40 cm × 1.25 cm (width, length and thickness, respectively); 10% and 20% of tannin (50% solution) was added to the pure adhesives. The following parameters were evaluated: Modulus of Rupture (MOR) and Modulus of Elasticity (MOE) in static bending, internal bonding, screw withdrawal, resistance to rotting fungi and dry wood termite. MOR showed better results at 120 °C. None of the treatments reached the minimum standard for the MOE, contrary to the internal bonding. The Trametes versicolor fungus caused greater mass loss to the tested panels when compared to Postia placenta. The proportion of tannin (90:10) in the phenolic adhesive contributed to a decrease in the resistance of the panel to the dry wood termite.

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