Strength and dimensional stability of cement bonded board reinforced with tomato stem particles and coconut husk dust

BioResources ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 572-582
Author(s):  
Lawrence Aguda ◽  
Babatunde Ajayi ◽  
Bisola Bakare ◽  
Yetunde Aguda ◽  
Kayode Olaoye ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Hot Water ◽  
Modulus Of Rupture ◽  
Particle Board ◽  
Thickness Swelling ◽  
Particle Content ◽  
Mean Values ◽  
Coconut Husk ◽  
Pre Treatment

The use of coconut husk sawdust and tomato stem particles at varying blending proportion was examined for the production of particle board. Boards of dimensions 350 mm by 350 mm by 6 mm were produced (coconut husk dust, tomato stem particles) at different blending proportion and addition of additive (CaCl2 at different concentrations). The physical properties (water absorption and thickness swelling) and mechanical properties (modulus of rupture (MOR) and modulus of elasticity (MOE)) were investigated. Thickness swelling and water absorption were investigated at 24 and 48 hours. The results showed that boards exhibited mean values of 0.50% to 4.16% and 2.12% to 7.00% respectively of thickness swelling at 24 hours and 48 hours respectively and 13.6% to 25.2% and 17.6% to 29.1% of water absorption at 24 h and 48 h, respectively. The boards also exhibited means of 1.00 N/mm2 to 5.25 N/mm2 and 339 N/mm2 to 3430 N/mm2 for MOR and MOE respectively. An increase in the tomato particle content caused increase in water absorption and thickness swelling, resulting in the highest water absorption and thickness swelling values. Tomato stem and coconut husk dust can be used to produce cement bonded boards after pre-treatment with hot water and preferably both sieved.

scholarly journals INFLUENCE OF THERMAL MODIFICATION ON THE PHYSICAL AND MECHANICAL PROPERTIES OF Eucalyptus badjensis MIXED PARTICLEBOARD / OSB PANELS

FLORESTA ◽  
2021 ◽  
Vol 51 (2) ◽  
pp. 419
Author(s):  
Giuliano Ferreira Pereira ◽  
Setsuo Iwakiri ◽  
Rosilani Trianoski ◽  
Polliana D'angelo Rios ◽  
Renan Zunta Raia
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Phenol Formaldehyde ◽  
Physical And Mechanical Properties ◽  
Dry Mass ◽  
Thermal Modification ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Swelling Properties ◽  
Different Temperatures

The objective of this research was to evaluate the effects of thermal modifications, at different temperatures and exposure times, on the technological properties of mixed particleboard / OSB panels made out of Eucalyptus badjensis. Using the wood of Eucalyptus badjensis, Particleboard, OSB and mixed Particleboard/OSB panels (control and thermally modified) were manufactured. The mixed panels’ thermal modification was carried out under three temperatures (180ºC, 200ºC and 220ºC) and two exposure times (10 minutes and 12 minutes). For the panels’ manufacturing, 6% of phenol-formaldehyde adhesive and 1% of paraffin were employed, which was calculated based on the particles’ dry mass. The water absorption and thickness swelling properties were evaluated after 2 and 24 hours of immersion, in addition to the panels’ modulus of elasticity, modulus of rupture and internal bond. Based on the results, we were able to conclude that the thermal modification affected most of the physical properties positively. From the different exposure times studied, the most effective one was the period of 12 minutes, especially for water absorption after 2 hours, which caused a reduction of 11.27%. In turn, the most effective temperature was of 220ºC, highlighting the thickness swelling after 24 hours, which caused a swelling decrease of 23.76% in comparison with the control panels. Regarding the mechanical properties, the thermal modification, in terms of the studied exposure times and temperatures, did not affect the results of the mixed particleboard /OSB panels. 

Particleboard Manufactured with Variation of Press Time

2015 ◽  
Vol 1088 ◽  
pp. 644-647
Author(s):  
Cristiane Inácio de Campos ◽  
Bruno Santos Ferreira ◽  
André Luis Christoforo ◽  
Francisco Antonio Rocco Lahr ◽  
Juliana Cortez Barbosa ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Mechanical Tests ◽  
Modulus Of Rupture ◽  
Test Results ◽  
Thickness Swelling ◽  
Mean Values ◽  
Tukey Test ◽  
Press Time ◽  
Brazilian Standard

This research aimed to produce and determine physical and mechanical properties of three-layered particleboard produced with Pinussp. wood particlesand three different times of press, i.e., 3, 5 and 7 minutes. Recommendations of the Brazilian standard ABNT NBR 14810 [1] were adopted to fundament physical and mechanical tests. The properties evaluated were the modulus of rupture (MOR) and modulus of elasticity (MOE) in static bending; internal bond; thickness swelling; water absorption; moisture content and apparent density.The mean values showed, for the physical properties, that all the panels manufactured achievedthe requirements of theBrazilian standard, and for mechanical properties, only the panelsmanufacturedwith 7minutesofpressing timemet therequirements. From the Tukey test results, timesof the pressingcycleinfluencedsignificantlyin allinvestigatedphysical and mechanicalproperties, showed better results the panels madewithseven minutesof the pressingcycle, implyingthat the time ofseven minutesof the pressingcycle is thebest among theinvestigatedperiodsin the manufactureofparticleboard.

Shungite Nanopowder as a Modificator of Mechanical Properties and Water Absorption for Three-Ply Particle Board

2016 ◽  
Vol 860 ◽  
pp. 73-77 ◽  
Author(s):  
Sergey Borisovich Vasilyev ◽  
Gennady Nikolaevich Kolesnikov ◽  
Aleksandr Vasilyevich Pitukhin ◽  
Nikolai Gennadievich Panov ◽  
Vadim Kostyukevich
Keyword(s):  
Mechanical Properties ◽  
Experimental Investigation ◽  
Water Absorption ◽  
Bending Strength ◽  
Wood Particle ◽  
Breaking Point ◽  
Experimental Investigations ◽  
Formaldehyde Resin ◽  
Particle Board ◽  
Thickness Swelling

The article presents the methods and the results of the experimental investigation of the additive influence of shungite nanopowder when mixed in the glue for three-ply particle board. The hypothesis of shungite nanopowder influence on physical-mechanical properties, water absorption and thickness swelling of wood particle board was formulated. The results of experimental investigations proved that the optimum shungite nanopowder quantity in glue solution makes up about 10 % of absolutely dry resin mass. Wooden particles of aspen and coniferous species, as well as glue solution based on carbamide-formaldehyde resin, were used in boards manufacturing. The samples were tested in order to determine physical-mechanical properties. It was found out that the 10 % shungite nanopowder additive increases the breaking point of three-ply particle board under bending strength by 18.3-25.7 %, the breaking point of three-ply particle board under tension perpendicular to the face of board by 7.5-11.7 %. As the result of experimental investigation it was found out that the 10 % shungite nanopowder when mixed in the glue decreases water thickness swelling of three-ply particle board up to 14.2 % and water absorption by 10.6-20.1 %. The shungite nanopowder powder contained particles of 50...100 nm in size and specific surface of 120 m2/g. In the course of the experiment three-ply particle boards were used with the thickness of 15.6 mm.

scholarly journals Sifat Fisis dan Mekanis Papan Semen dari Serat Tandan Kosong Kelapa Sawit (The Physical and Mechanical Properties of Cement Board Made from Oil Palm Empty Fruit Bunches Fibers)

2016 ◽  
Vol 8 (2) ◽  
pp. 43-52 ◽  
Author(s):  
Djoko Purwanto
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Oil Palm ◽  
Modulus Of Elasticity ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Empty Fruit Bunches ◽  
Screw Withdrawal ◽  
Cement Board

Oil palm empty fruit bunches (OPEFB) fiber were industrial waste that has not been widely used by the community, only stacked and cause odors that interfere with the surrounding environment. This research studied the utilization of OPEFB fiber for cement board products using cement as resin and CaCl2 as accelerator. Laboratory scale cement board made from OPEFB fiber were mixed with cement, and CaCl2. The composition of fiber and cement were 1:1, 1:1.5, 1:2, and CaCl2 variations were 0%, 1% and 3%. A mixture of fibers, cement and CaCl2 was compressed at the pressure of 4 ton for 24 hours. The cement boards were tested for physical and mechanical properties according to JIS A 5417-1992, and the results were compared to the requirements of the cement board JIS A 5417-1992. Cement board made from fiber and cement composition 1:1.5 and CaCl2 content 3% produced moisture content, thickness swelling, water absorption, density, modulus of rupture/MOR, modulus of elasticity/MOE and screw withdrawal strength that met the requirement of JIS A 5417-1992. The composition of fiber and cement and the variations of CaCl2 content produced significant effect on water content, water absorption, thickness swelling, modulus of rupture/MOR, modulus of elasticity/MOE and screw withdrawal strength on cement boards.Keywords : oil palm empty fruit bunches fiber, cement boards, physical and mechanical properties

scholarly journals PENGARUH PERENDAMAN PARTIKEL TERHADAP SIFAT FISIS DAN MEKANIS PAPAN PARTIKEL DARI AMPAS TEBU (Saccharum officinarum)

PERENNIAL ◽  
2008 ◽  
Vol 4 (1) ◽  
pp. 6
Author(s):  
Apri Heri Iswanto ◽  
Zahrial Coto ◽  
Kurniawansyah Effendy
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Modulus Of Elasticity ◽  
Internal Bond ◽  
Physical And Mechanical Properties ◽  
Saccharum Officinarum ◽  
Hot Water ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Holding Power

The objective of this research is to research the effect of particle soaking to physical and mechanical properties particleboard that resulted. The best result of particleboard is particleboard with treatment of hot water soaking. From this result obtained average of physical properties of particleboard (i.e. density, moisture content, water absorption, and thickness swelling) are 0.7 g/cm3; 9.58%; 52.27%; 10.05%. While the result average of mechanical properties of particleboard (i.e. Modulus of Rupture, Modulus of Elasticity, Internal Bond and Screw Holding Power) are 118.79 kg/cm2; 8.909 kg/cm2; 1.85 kg/cm2; 28.40 kg. Key words: Soaking, bagasse, particleboard, physical and mechanical properties References

SIFAT FISIK MEKANIK PAPAN PARTIKEL TANPA PEREKAT DARI TANDAN KOSONG KELAPA SAWIT (Elaeis Guineensis acq)

2014 ◽  
Vol 6 (1) ◽  
pp. 15 ◽  
Author(s):  
Budi Tri Cahyana
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Water Content ◽  
Oil Palm ◽  
Modulus Of Elasticity ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Particle Board ◽  
Thickness Swelling ◽  
Empty Fruit Bunches

This research aimed to get the physical and mechanical properties of non adhesive-particle board from oil palm empty fruit bunches. The oil palm empty fruit bunches were degradated to fibre and boiled in boiling water during 60 minute then dried in ± 2 weeks. The dried raw material was chopped to be fibre in 5 mesh, 10 mesh, and 16 mesh. It were complied into a mold and then hot pressed in 35 kgf/cm2 pressure during 10 minute with 3 of temperature variety, 160°C, 180°C and 200°C. The result showed that the average of particle board water content was 7,11 -  9,85 % and the density was 0,63 – 0,76 gr/cm3. The highest thickness swelling was 22,59 % in 10 mesh and 160 0C (a2b1) temperature of oil palm empty fruit bunches. The modulus of rupture was 211,67 kg/cm2  in 10 mesh and 180 0C (a2b2) temperature. The modulus of elasticity was 490,85 kg/cm2 in 10 mesh and 160 0C (a2b1) temperature. The tensile strength was 7,49 kg/cm2 in 5 mesh and 200 0C (a1b3) temperature. The average of physical and mechanical properties such as water content, density, modulus of rupture, tensile strength were fulfill the SNI requirement, while the average of thickness swelling and modulus of elasticity were not fulfill the SNI requirement.Keywords: oil palm empty fruit bunches, particle board

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 The classical mechanics engineered of Bambusa vulgaris and Schizostachyum brachycladum

2021 ◽  
Vol 6 (2) ◽  
pp. 57-61
Author(s):  
Mohamad Saiful Sulaiman ◽  
Sitti Fatimah Mhd. Ramle ◽  
Rokiah Hashim ◽  
Othman Sulaiman ◽  
Mohd Hazim Mohamad Amini ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Water Absorption ◽  
Classical Mechanics ◽  
Basic Density ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Flexural Test ◽  
Thickness Swelling ◽  
Bambusa Vulgaris

Physical and mechanical properties of Bambusa vulgaris and Schizostachyum brachycladum wereinvestigated. The sample were classified into two different ages which are young and mature foreach culm of bamboo. The aim of this study to investigate the physical properties such as density,basic density, moisture content, water absorption and thickness swelling. Other than that, themechanical properties also help to determine their flexural test for modulus of rupture (MOR) andmodulus of elasticity (MOE). The method used to analyse physical and mechanical properties werefollowing the ISO standard. From this study, young Bambusa vulgaris has indicated the highercontent of moisture content, water absorption and thickness swelling with 67.66%, 2.69% and34.03%, respectively while mature Schizostachyum brachycladum has shown the higher value inbasic density, density, and flexural test for MOR and MOE with 876.33 kg/m3, 1084.49 kg/m3, 317.01 N/mm2 and 122986.18 N/mm2, respectively.

Effect of Density on Physical and Mechanical Properties of Reconstituted Small-Sized Bamboo Fibrous Sheet Composite

2010 ◽  
Vol 150-151 ◽  
pp. 634-639 ◽  
Author(s):  
Rong Xian Zhu ◽  
Wen Ji Yu
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Cold Pressing ◽  
Shearing Strength

The effect of density on physical and mechanical properties of phenolic-impregnated cold-pressing reconstituted small-sized bamboo fibrous sheet composite was evaluated. The results indicated that with the density increased from 0.85g/cm3 to 1.20 g/cm3: water absorption decreased, thickness swelling increased first and then decreased; the value of modulus of rupture(MOR) increased from 120MPa to 230MPa, R2 was 0.885; the value of modulus elasticity(MOE) increased from 1.8×104MPa to 2.8×104MPa, R2 was 0.978; the shearing strength (perpendicular loading) increased from 6.5MPa to 18MPa, R2 was 0.978;the shearing strength( parallel loading) increased from 6.3MPa to 26MPa, R2 was 0.973;the compression parallel to grain values increased from 80MPa to 120MPa.

scholarly journals Physico-Mechanical Properties of Particleboards Produced from Macadamia Nutshell and Gum Arabic

2021 ◽  
Vol 11 (23) ◽  
pp. 11138
Author(s):  
Derrick Mirindi ◽  
Richard O. Onchiri ◽  
Joseph Thuo
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Gum Arabic ◽  
Physical And Mechanical Properties ◽  
General Purpose ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
X Ray ◽  
Electron Microscopy Analysis ◽  
Microscopy Analysis

Due to the rising prices and high demand for panels and the fact that formaldehyde—a known carcinogen—is used to manufacture conventional particleboard, this study investigated the suitability of particleboard formed from ground macadamia nutshells mixed with 50%, 40%, 30%, and 20% of gum Arabic and determined its physical and mechanical properties. The specific gravity, the bulk density, the x-ray fluorescence, and the scanning electron microscopy analysis of the two materials were analyzed. After production, the particleboards were cured for 56 days in an acclimatized room; then, the physical and mechanical properties were evaluated. Particleboards mixed with 50% gum Arabic and 50% macadamia nutshell showed good results in terms of the lowest average values of water absorption (9.42%) and thickness swelling (6.22%) after 24 h of immersion in distilled water as well as the highest density (1219.20 kg/m3), modulus of rupture (12.21 MPa), modulus of elasticity (1.81 GPa), internal bond strength (1.25 MPa), and compressive strength (22.54 MPa). According to ANSI/A208.1-1999, the particleboards produced met the standard for general-purpose boards except for water absorption (WA) and thickness swelling (TS) characteristics, which were above the maximum of 8% and 3%, respectively.

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