Evaluation of Physical Properties of Particleboard Produced from Sugarcane Leaves

2015 ◽  
Vol 668 ◽  
pp. 270-274
Author(s):  
Evelyn Hoffmamm Martins ◽  
José Benedito Guimarães Jr. ◽  
Thiago de Paula Protásio ◽  
Rafael Farinassi Mendes ◽  
Bárbara Maria Ribeiro Guimarães
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Urea Formaldehyde ◽  
Solid Content ◽  
Thickness Swelling ◽  
Resin Solid ◽  
Randomized Design ◽  
Eucalyptus Wood ◽  
Pressing Cycle ◽  
Agroindustrial Waste

The southwest region of the state of Goiás stands out for agriculture, especially the production of grain and sugarcane. This high agricultural production has a result of generation of agroindustrial waste and it has a high potential to be exploited for particleboard manufacturing. In this context, the objective of this study was to evaluate the use of sugarcane leaves in the production of particleboards, compared to eucalyptus panels, through the evaluation of their physical properties. Three panels were made with 100% sugarcane leaves, and three with eucalyptus wood were produced. They were produced with a nominal density of 0.60 g/cm3. 12% urea-formaldehyde adhesives were applied based on their resin solid content. The used pressing cycle was: pressure of 4.00 MPa, temperature of 180°C and time of 15 minutes. After production, the same properties were evaluated on their water absorption and thickness swelling after 2 and 24 hours of immersion. A randomized design was used, and the averages were compared by the Scott-Knott test at 5% significance. Based on these results, it can be seen that panels produced with sugarcane leaves exhibited higher values for physical properties than eucalyptus panels.Keywords: Thickness swelling, waste ,water absorption.

Feasibility of Using MDP Panels, Compared to Conventional Particleboards

2015 ◽  
Vol 668 ◽  
pp. 145-149
Author(s):  
Bárbara Maria Ribeiro Guimarães ◽  
José Benedito Guimarães Jr. ◽  
Jefferson Barbosa Campomori ◽  
Rafael Farinassi Mendes ◽  
Lourival Marin Mendes
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Urea Formaldehyde ◽  
Raw Material ◽  
Thickness Swelling ◽  
Gel Time ◽  
Pressing Cycle ◽  
Base Resin ◽  
Solids Content

The objective of this study was to investigate, by physical properties, the efficiency of MDP panels, compared to conventional particleboards, since MDP was considered as a raw material for the manufacture of these panels. MDP panels had the following composition: 20/60/20 face/core; a urea-formaldehyde adhesive was used, with a solids content of 55%; pH 8.42; viscosity of 420 Cp and gel time of 51 seconds. 12% of dry base resin were applied to the particles. The pressing cycle was 4 MPa, with a temperature of 160°C for a period of 8 minutes. The panels were produced with a density of 0.70g/cm3. We observed that with the exception of the physical properties of water absorption after 2 hours, the MDP showed lower physical properties (water absorption after 24 hours and thickness swelling after 2 hours and 24 hours of immersion in water) in relation to the panels conventional clusters. Thus demonstrating its superiority in relation to the physical properties of MDP compared to conventional agglomerated panels, emphasizing their use in this way.

Physical Properties of MDP Panels Produced with Different Proportions of Wood and Pseudostem

2015 ◽  
Vol 668 ◽  
pp. 48-53
Author(s):  
Bárbara Maria Ribeiro Guimarães ◽  
José Benedito Guimarães Jr. ◽  
Ellison Rosario de Oliveira ◽  
Jefferson Barbosa Campomori ◽  
Lourival Marin Mendes
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Urea Formaldehyde ◽  
Thickness Swelling ◽  
Technical Feasibility ◽  
The Core ◽  
Pressing Cycle ◽  
The Face ◽  
American Standard

The objective of the present study was to verify the technical feasibility of using banana pseudostem fibers in the manufacture of MDP in intermediate panel layers, in different associations with wood from eucalyptus and banana pseudostem. The physical properties of water absorption and thickness swelling for immersion in water for both 2 and 24 hours were evaluated. Three panels were produced according to American Standard ASTM D 1037. 12% urea-formaldehyde adhesive were used for the production of panels. The pressing cycle was 4 MPa, with a temperature of 160°C for a period of 8 minutes. The panels were produced with a density of 0.70g/cm3 and had the following composition: 20/60/20 face/core, in which the face consisted of eucalyptus and varying proportions of pseudostem in the core (10%, 20% and 30%) and in eucalyptus. It is observed that the panels with 20% particles in the core showed the best results, compared to other panels evaluated.

NaOH Treatment Impact in the Dimensional Stability of Banana Pseudostem Particleboard Panels

2014 ◽  
Vol 600 ◽  
pp. 447-451 ◽  
Author(s):  
Bárbara Maria Ribeiro Guimarães ◽  
Lina Bufalino ◽  
José Benedito Guimarães Jr. ◽  
Rafael Farinassi Mendes ◽  
Lourival Marin Mendes ◽  
...  
Keyword(s):  
Water Absorption ◽  
Dimensional Stability ◽  
Urea Formaldehyde ◽  
Thickness Swelling ◽  
Technical Feasibility ◽  
Pressing Cycle ◽  
Naoh Treatment

This work intends to verify the technical feasibility of NaOH treatment in particleboard manufacture made from banana pseudostem fibers. The particles were treated for a 24 hour period and subsequently washed with water to remove the product. The concentration used was NaOH at 0.5%. The adhesive used was urea - formaldehyde at 12%, the pressing cycle was 4 MPa, at 160 °C for 8 minutes. The water absorption after 2 hours immersion was 148.79% and 189.83% after 24 hours. Thickness swelling value after 2 hours was 54.96% and 74.05% after 24 hours. The results were above the literature values and the minimum values required by the CS 236-66 standard for swelling after 24 hours immersion.

scholarly journals Eucalyptus wood and coffee parchment for particleboard production: Physical and mechanical properties

2017 ◽  
Vol 41 (2) ◽  
pp. 139-146 ◽  
Author(s):  
Mário Vanoli Scatolino ◽  
Andrey de Oliveira Costa ◽  
José Benedito Guimarães Júnior ◽  
Thiago de Paula Protásio ◽  
Rafael Farinassi Mendes ◽  
...  
Keyword(s):  
Raw Materials ◽  
Urea Formaldehyde ◽  
Physical And Mechanical Properties ◽  
Dry Weight ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Renewable Materials ◽  
Wood Panel ◽  
Eucalyptus Wood ◽  
Pressing Cycle

ABSTRACT The wood panel industry is constantly growing, being necessary the innovation in technologies and raw materials to improve the quality of the final product. Considering the shortage and pressure to decrease the dependence of wood, there is an interest in other renewable materials such as agricultural wastes. Among these wastes, coffee parchment is one which deserves notoriety. An alternative use for coffee parchment could be for production of particleboard in association with wood particles. This study aimed to evaluate the feasibility of using coffee parchment for production of particleboard. The following percentages of wastes were used: 0, 10, 20, 30, 40 and 50% in association to eucalyptus wood. The panels were produced with 8% of urea formaldehyde (based on dry weight of particles). The pressing cycle consisted by: pre-pressing of 0.5 MPa for 10 minutes followed by pressing of 4.0 MPa, and temperature of 160° C for 15 minutes. The compaction ratio of particleboards produced using higher quantities of parchment improved the physical properties. The properties of Water Absorption (2 and 24 h) and Thickness Swelling (2 h) decreased with increasing percentage of coffee parchment. The Thickness Swelling (24 h) showed not significant effect with an increase of coffee waste. The Modulus of Elasticity for coffee parchment particleboards was in the range 646.49 ± 112.65 to 402.03 ± 66.24 MPa, while the Modulus of Rupture ranged from 8.18 ± 1.39 to 4.45 ± 0.75 MPa. The results showed that 10% of coffee parchment could be added for production of particleboards.

scholarly journals Utilization of Pitali (Trewia nudiflora) for Manufacturing Commercial Plywood in Bangladesh

1970 ◽  
Vol 43 (4) ◽  
pp. 581-587
Author(s):  
M Hasan Shahria ◽  
M Ashaduzzaman ◽  
M Iftekhar Shams ◽  
Arifa Sharmin ◽  
M Muktarul Islam
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Moisture Content ◽  
Physical Properties ◽  
Water Absorption ◽  
Linear Expansion ◽  
Urea Formaldehyde ◽  
Physical And Mechanical Properties ◽  
Thickness Swelling ◽  
Trewia Nudiflora

The study was conducted to find out the potentiality of Pitali (Trewia nudiflora) for manufacturing commercial plywood and evaluating its physical and mechanical properties. Two 9-ply plywood of 2.4m x 1.2m x 18mm size were manufactured using liquid urea formaldehyde adhesive. The physical and mechanical properties of T. nudiflora plywood were compared with the existing market available plywood manufactured by Simul (Bombax ceiba). It was found that density were 509.82 kg/m3 and 490.96 kg/m3, moisture content after curing were 10.67% and 17.61%, thickness swelling were 6.90% and 7.29%, linear expansion were 0.19% and 0.15%, water absorption were 50.89% and 64.79%, MOR were 29.94 N/mm2 and 27.05 N/mm2, MOE were 1613.89 N/mm2 and 1160.68 N/mm2, and tensile strength were 14.75 N/mm2 and 13.12 N/mm2 for T. nudiflora plywood and market plywood respectively. The evaluated physical and mechanical properties of T. nudiflora plywood were also compared with some relevant results and standards reported earlier. Key Words: Plywood, Trewia nudiflora, Physical properties, Mechanical properties. doi: 10.3329/bjsir.v43i4.2249 Bangladesh J. Sci. Ind. Res. 43(4),581-587, 2008

Dimensional Stability of Particleboards Produced with Soybean Residue

2015 ◽  
Vol 668 ◽  
pp. 399-403
Author(s):  
José Benedito Guimarães ◽  
Íngrid Luz Guimarães ◽  
Fernando Jesus Nogara Lisboa ◽  
Rafael Farinassi Mendes ◽  
Bárbara Maria Ribeiro Guimarães
Keyword(s):  
Water Absorption ◽  
Dimensional Stability ◽  
Animal Feed ◽  
Urea Formaldehyde ◽  
Raw Material ◽  
Thickness Swelling ◽  
Average Value ◽  
Soybean Residue ◽  
Pressing Cycle ◽  
Significant Difference

The southwest region of Goiás is a major grain producer in the country, with emphasis on soybeans. It is protected by a pellicle grain into a legume. After its separation, the film is eventually discarded or used as animal feed. One alternative is the production of particleboards, considering lignocellulosic material, which could add value to this raw material. In this sense, the objective of this study was to evaluate the dimensional stability of particleboards produced with soybean residue, comparing them with eucalyptus panels. The particleboard was made with a nominal density of 0.55 g/cm3, and 12% of urea-formaldehyde adhesive were used, based on their content of resin solids and pressing cycle of 3.92 MPa, 180oC for 15 minutes. Three panels were produced by treating. The assessment of dimensional stability was made by measuring their density, water absorption and thickness swelling after immersion for 2 and 24 hours. Based on the results, it can be seen that, statistically, the panels had equal densities, an average value of 0.52 g/cm3. It is noted that the panels produced with a soy film had water absorption values of 2 to 24 hours, and thickness swelling in 24 hours, in comparison with the upper eucalyptus. For thickness swelling after 2 hours, no statistically significant difference between the tested materials was observed.

scholarly journals Soybean waste in particleboard production

2018 ◽  
Vol 42 (2) ◽  
pp. 186-194 ◽  
Author(s):  
Evelyn Hoffmamm Martins ◽  
Alan Pereira Vilela ◽  
Rafael Farinassi Mendes ◽  
Lourival Marin Mendes ◽  
Lívia Elisabeth Vasconcellos de Siqueira Brandão Vaz ◽  
...  
Keyword(s):  
Water Absorption ◽  
Water Immersion ◽  
Eucalyptus Grandis ◽  
Raw Material ◽  
Modulus Of Rupture ◽  
High Yield ◽  
Thickness Swelling ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Hybrid Eucalyptus

ABSTRACT Brazil is the second largest soybean producer in the world, with a yield of around 96.2 million tons per crop. This high yield leads to a great amount of waste resulting from soybean cultivation, which can reach approximately 41 million tons of waste per year. This material has lignocellulosic properties, which may enable its use as a raw material for particleboard production. Therefore, the objective of this study was to evaluate the use of soybean pods in particleboard production. For particleboard manufacture, wood of the hybrid Eucalyptus urophylla and Eucalyptus grandis was used, added with soybean pods, at proportions of 0%, 25%, 50%, 75% and 100%. For particleboard evaluation, a completely randomized design was used, with five treatments and three replicates, using linear regression and the Scott-Knott test at 5% significance for comparison among the different treatments. The properties apparent density, compaction ratio, water absorption after 2 and 24 hours, thickness swelling after 2 and 24 hours in water immersion, internal bonding, modulus of rupture and modulus of elasticity in bending properties were evaluated. The ratio soybean pod waste and eucalyptus particles in the panels led to an increase in water absorption values and thickness swelling, in addition to a decrease in mechanical properties. The production of panels with approximately 23% soybean pods is feasible.

Thermomechanical (TMP) and Chemo-Thermomechanical Pulps (CTMP) for Medium Density Fibreboards (MDF)

Holzforschung ◽  
2001 ◽  
Vol 55 (2) ◽  
pp. 214-218 ◽  
Author(s):  
Edmone Roffael ◽  
Brigitte Dix ◽  
Thomas Schneider
Keyword(s):  
Mechanical Properties ◽  
Water Absorption ◽  
Internal Bond ◽  
Urea Formaldehyde ◽  
Medium Density ◽  
Thickness Swelling ◽  
Negative Effect ◽  
Pilot Plant Scale ◽  
Drying Conditions ◽  
Internal Bonding Strength

Summary Thermomechanical (TMP) and chemo-thermomechanical pulps (CTMP) were prepared from spruce under different pulping conditions. The fibres were dried at 70 °C and medium density fibreboards (MDF) were made therefrom in pilot plant scale using urea-formaldehyde resins as a binder. The results of testing the physical-mechanical properties reveal that the pulping temperature has a significant influence on the thickness swelling and water absorption of the boards. MDF prepared from fibres produced at high pulping temperature (180 °C) generally show lower thickness swelling and water absorption than MDF made from fibres produced at low pulping temperature (140°C and 160 °C). However, high pulping temperature may have a negative effect on the internal bond strength of the boards. In general, CTMP leads to MDF with higher internal bonding strength compared to those derived from TMP. In addition, the influence of different drying conditions (150 °C and 170 °C) of TMP and CTMP on the physical-mechanical properties of MDF was assessed. MDF made from CTMP showed lower thickness swelling when dried under high temperature.

Effect of Particle Size on Some Properties of Rice Husk Particleboard

2007 ◽  
Vol 18-19 ◽  
pp. 43-48 ◽  
Author(s):  
J.O. Osarenmwinda ◽  
J.C. Nwachukwu
Keyword(s):  
Particle Size ◽  
Physical Properties ◽  
Water Absorption ◽  
Rice Husk ◽  
Modulus Of Elasticity ◽  
Internal Bond ◽  
Elasticity Modulus ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Effect Of Particle Size

The purpose of this study was to determine the effect of particle size on the mechanical properties (Modulus of Elasticity, Modulus of Rupture, and Internal Bond) and physical properties (thickness swelling and water absorption) of rice husk particleboard. The particle sizes used were 1.0mm, 1.18mm, 2mm, 2.36mm and 2.80mm. Each was mixed with a constant resin (urea formaldehyde) concentration of 20% of oven dry weight of rice husk particles. The results showed that as the particle size increased, the particleboard’s mechanical and physical properties decreased. For example, the modulus of elasticity, modulus of rupture, internal bond, thickness swelling and water absorption for 1.0mm particle size particleboard were 1590N/mm2, 11.11N/mm2, 0.28N/mm2,10.90% and 38.53% respectively, while for 2.8mm particle size they were 1958N/mm2,14.2N/mm2, 0.44N/mm2, 11.51% and 47.21% respectively. Overall results showed that particleboard made from rice husk exceed the EN standard for modulus of elasticity, modulus of rupture, internal bond. However, thickness swelling values were poor. Hence, the smaller the particle size the better the properties of the particleboard.

scholarly journals Strength Performance and Dimensional Stability of Peeled Bamboo - Fiberglass Composite (PBFC) from Buluh Betong

2014 ◽  
Vol 2 (1) ◽  
pp. 16-22
Author(s):  
Mohd Aminuddin Che Haron ◽  
Suhaimi Muhammed ◽  
Abdul Hamid Saleh
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Epoxy Resin ◽  
Dimensional Stability ◽  
Thickness Swelling ◽  
European Standard ◽  
Strength Performance ◽  
Layer Composite ◽  
Mechanical And Physical Properties ◽  
Fiberglass Composite

Bamboo is considered as environmentally and eco-friendly material compared to hardwood and nowadays bamboo veneer is getting very popular in the market. Bamboo veneer is suitable for many modern designs. The alternate layers of veneer bamboo (3 and 5 layers) were combined with fiberglass by using Epoxy resin (2% hardener) as bonding agent to produce PBFC at different pressure. Panels produced were assessed for the mechanical and physical properties such as MOE and MOR, thickness swelling (TS), and water absorption (WA) in accordance with the European Standard. Results revealed that strength performance of board improved with increasing pressure. Thickness swelling and water absorption values were much lower for the 5 layer composite Thus such findings revealed that bamboo veneer from Buluh betong possess great potential for the manufacture of bio-composite products.

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