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 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.

Influence of Moisture Content in some Mechanical Properties of Two Brazilian Tropical Wood Species

2014 ◽  
Vol 1025-1026 ◽  
pp. 42-45 ◽  
Author(s):  
Luiz A. Melgaço N. Branco ◽  
Eduardo Chahud ◽  
André Luis Christoforo ◽  
Francisco Antonio Rocco Lahr ◽  
Rosane A.G. Battistelle ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Moisture Content ◽  
Analysis Of Variance ◽  
Wood Species ◽  
Modulus Of Elasticity ◽  
Modulus Of Rupture ◽  
Tropical Wood ◽  
Fiber Saturation ◽  
Brazilian Standard

This study aimed, with the aid of analysis of variance (ANOVA), to investigate and quantify the influence of moisture ranging between 12% and over 30% (fiber saturation) on the mechanical properties: strength and modulus of elasticity in compression and in tension parallel to grain; modulus of rupture and modulus of elasticity in static bending; shear strength parallel to grain considering wood species Ipê (Tabebuia sp) and Angelim Araroba (Vataireopsis araroba). Tests were performed according to the assumptions and calculating methods Brazilian standard ABNT NBR 7190, Anexx B, totalizing 400 tests. Results of ANOVA revealed a significant reduction (16% on average) for mechanical properties wood due to the increase in moisture content from 12% to over 30% (fiber saturation). The same behavior also occurred when assembly containing the two species was considered.

scholarly journals Properties of Particleboard in Correlation with Mat Weight and Press Factor

2019 ◽  
Vol 8 (4) ◽  
pp. 6803-6807
Keyword(s):  
Mechanical Properties ◽  
Modulus Of Elasticity ◽  
Control Mechanism ◽  
Commercial Production ◽  
Raw Material ◽  
Modulus Of Rupture ◽  
Tropical Species ◽  
Internal Bonding ◽  
Manufacturing Control ◽  
Screw Withdrawal

The influence of resin types on board properties and the correlation to mat weight and press factor on commercial production of particleboard were investigated. These factors could be used as the control mechanism for board making in order to predict final board properties. The resins used in this study were the lower emission resin E0, E1 and EC. Rubberwood and mix tropical species were used as raw material for manufacturing particleboard with thickness of 18mm. This research was done at Mieco Chipboard Bhd. The boards were tested for their mechanical properties which are modulus of rupture (MOR), modulus of elasticity (MOE), internal bonding (IB) and screw withdrawal. Overall, the result shows that board made from E0 resin had better MOE, MOR and IB. Meanwhile the result of screw edge showed that board made from E1 resin is better with the value of 510N. The result also showed high correlation between mat weight and press factor (0.937) and contributed in particleboard manufacturing control

scholarly journals Formaldehyde Use and Alternative Biobased Binders for Particleboard Formulation: A Review

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Stephen Warui Kariuki ◽  
Jackson Wachira ◽  
Millien Kawira ◽  
Genson Murithi
Keyword(s):  
Mechanical Properties ◽  
Modulus Of Elasticity ◽  
Health Hazard ◽  
Physical And Mechanical Properties ◽  
Epidemiologic Studies ◽  
Modulus Of Rupture ◽  
Modified Starch ◽  
Internal Bonding ◽  
The Cost ◽  
Over Time

Formaldehyde-based resins are conventionally used as a binder in formulation of particleboard. Epidemiologic studies have shown that formaldehyde is carcinogenic. Efforts to reduce the health hazard effects of the fomaldehyde-based resin in the particleboard formulation have included use of scavengers for formaldehydes and use of an alternative binder. Use of scavengers for the formaldehyde increases the cost and maintenance of particleboard formulation. There is no proof that scavengers eliminate the emission of formaldehyde from particleboard. Use of biobased binders in particleboard formulation provides an alternative for eliminating use of the formaldehyde-based resin. However, the alternative is hindered by challenges, which include limitations of physical and mechanical properties. The challenge has continuously been acted upon through research. The paper presents an overview of the use of starch as an alternative binder. Improvement over time of the starch and limitations thereof requires to be addressed. Use of the modified starch has shown increased particleboard performance. Mechanical strength, such as modulus of rupture, modulus of elasticity, and internal bonding in particleboards, however, remains to be a challenge.

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 Kebergantungan Sifat Fisis dan Mekanis Papan Komposit Berbahan Dasar Sabut Pinang dan Sabut Kelapa pada Variasi Struktur

POSITRON ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 8
Author(s):  
Irfana Diah Faryuni ◽  
Mentarie Resthu Putri ◽  
Asifa Asri ◽  
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 kandungan serat sabut pinang (Areca catechu L.) dan partikel sabut kelapa (Cocos nucifera L.) yang keduanya berperan sebagai filler. Selain itu, digunakan urea formaldehyde (UF) sebagai matriks, parafin untuk penghambat air, serta NH4Cl sebagai katalis. Struktur papan komposit divariasikan sebanyak 2 jenis, yaitu struktur homogen dan sandwich yang akan diuji sifat fisis dan mekanisnya dengan menggunakan standarisasi Japanese Industrial Standars (JIS) A 5908-2003. Struktur homogen terdiri dari 3 sampel, yaitu 100% serat sabut pinang, 100% partikel sabut kelapa, dan 50% serat sabut pinang dicampur 50% partikel sabut kelapa. Pada struktur sandwich terdapat 2 sampel, yaitu 25% serat sabut pinang sebagai face dan back serta 50% partikel sabut kelapa sebagai core dan 25% partikel sabut kelapa sebagai face dan back serta 50% serat sabut pinang sebagai core. Hasil penelitian menunjukkan sampel sandwich dengan susunan 25% serat sabut pinang sebagai face dan back serta 50% partikel sabut kelapa sebagai core, merupakan sampel yang paling baik yakni memiliki nilai kerapatan 641,36 + 18,03 kg/m3, kadar air 9,88 + 0,49 %, daya serap air 118,74 + 25,61 %, pengembangan tebal 48,82 + 8,44 %, modulus of elasticity 767,90 + 35,41 MPa, modulus of rupture  14,45 + 4,57 MPa, dan internal bonding 0,17 + 0,04 MPa. 

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.

Effect of Ozone Treatment on Properties of Screw Pressed and Non-Screw Pressed Empty Fruit Bunch Medium Density Particleboard

2015 ◽  
Vol 1134 ◽  
pp. 116-122
Author(s):  
Roslan Ali ◽  
Mohamad Nurul Azman Mohammad Taib ◽  
Kamal Wok ◽  
Shawaluddin Tahiruddin ◽  
Mohd Amrin Abdullah
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Water Absorption ◽  
Modulus Of Elasticity ◽  
Modulus Of Rupture ◽  
Ozone Treatment ◽  
Medium Density ◽  
Internal Bonding ◽  
Empty Fruit Bunch ◽  
Thickness Swelling

This study was done to investigate the effects of ozone treatment as a method to improve the properties of empty fruit bunch (EFB) medium density particleboard. Two types of EFB were used in this study i.e. screw pressed and non-screw pressed empty fruit bunch. These EFB were treated in an ozone chamber for 8 hours prior to particleboard manufacturing. The mechanical properties, Modulus of Elasticity (MOE), Modulus of Rupture (MOR) and Internal Bonding (IB) and physical properties, water Absorption (WA) and Thickness Swelling (TS) of EFB particleboard were determined. The results showed that the ozone treatment could increase the MOR and IB values of EFB particleboard, but had no significant effect on MOE values. For physical properties, the values showed no improvement for TS and WA. The panels manufactured using ozone treatment was found suitable for applications for furniture products.

scholarly journals Physical and Mechanical Properties of Engineered Coconut Trunk Veneer (ECTV) for Interior Products

CORD ◽  
2013 ◽  
Vol 29 (1) ◽  
pp. 4
Author(s):  
Izran K.
Keyword(s):  
Mechanical Properties ◽  
Modulus Of Elasticity ◽  
Cocos Nucifera ◽  
Urea Formaldehyde ◽  
Physical And Mechanical Properties ◽  
The Other ◽  
Modulus Of Rupture ◽  
Uf Resin ◽  
Mixed Layers ◽  
Different Parts

A study was undertaken to investigate the physical and mechanical properties of engineered coconut (Cocos nucifera) veneer (ECTV). The coconut trunks (40 – 50 years old) were obtained from Hutan Melintang, Perak and were peeled into veneers at Bestgrade Sdn. Bhd. The veneers were obtained from two different parts of coconut trunks viz inner and outer which were used to fabricate 5-ply engineered coconut veneers. The ECTVs were fabricated at FRIM’s Bio-Composite Laboratory. They were manufactured with urea formaldehyde (UF) resin and with three combinations namely 100% inner, 100% outer and alternate outer & inner veneers (mix). The densities for the engineered veneers made of 100% outer, 100% inner, and mixed layers were 944.1 kg/m3, 858.15 kg/m3 and 891.11 kg/m3, respectively. Results showed that the Modulus of Rupture (MOR) of the ECTV made from 100% outer veneers had the highest mean MOR value (88.69 MPa), followed by those made from the mixed veneers (74.35 MPa) and 100% inner (58.44 MPa), respectively.  On the other hand, the Modulus Of Elasticity (MOE) values were 10.12 Mpa for outer, 8,210 Mpa for inner and 10,075 Mpa for mixed. Overall, the testing results showed that the ECTV met the standard requirements.

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