OSB Panels with Balsa Wood Waste and Castor Oil Polyurethane Resin

In recent years the production of products derived from wood and bamboo are increasing, due to the search for a more rational exploitation of these raw materials. Amongst these products, the particleboards production combine sustainability and rationality in the use of these materials. In this context, this work has the objective to study the application of alternative raw materials in the manufacture of Medium Density Particleboards (MDP), using residues from industrial processimg of coffee and bamboo. MDP had been produced with particles of giganteus bamboo of the Dendrocalamus species and particle of coffee rind in the intermediate layer of the particleboard, bonded with polyurethane resin based on castor oil. The physical and mechanical characterization was carried out accordingly to NBR 14810-3 (2006). The physical properties evaluated were: of water absorption for 2h and 24h; thickness swallowing for 2h and 24h; density, humidity content. The mechanical properties evaluated were: Tensile strength, static bending (MOR and MOE). The results were compared with NBR 14810-2 (2006) and also with the ANSI A208-1 (1993). The physical performance of these particleboards was below the values recommend by the Brazilian norm. Also the mechanical characteristics are not improve, demonstrating that the inclusion of coffee rind did not benefit the physical characteristics and nor the mechanical ones. However it can be used as construction materials for partitions and ceiling panels.

Download Full-text

Production and characterization of MDF using eucalyptus fibers and castor oil-based polyurethane resin

Materials Research ◽

10.1590/s1516-14392004000300008 ◽

2004 ◽

Vol 7 (3) ◽

pp. 421-425 ◽

Cited By ~ 6

Author(s):

Cristiane Inácio de Campos ◽

Francisco Antonio Rocco Lahr

Keyword(s):

Castor Oil ◽

Polyurethane Resin

Download Full-text

ANÁLISE DO COMPORTAMENTO DE PEÇAS ESTRUTURAIS DE MADEIRA LAMINADA COLADA COM RESINA POLI-URETANA SUBMETIDAS À COMPRESSÃO AXIAL

Colloquium Exactarum ◽

10.5747/ce.2018.v10.nesp.000160 ◽

2018 ◽

Vol 10 (Especial) ◽

pp. 65-70

Author(s):

Adriano Seidi Demarchi Mikami ◽

Larissa Queiroz Minillo

Keyword(s):

Mechanical Properties ◽

Statistical Analysis ◽

Axial Compression ◽

Castor Oil ◽

Physical And Mechanical Properties ◽

Structural Timber ◽

Assembly Process ◽

Fast Growing ◽

Polyurethane Resin ◽

Glued Laminated Timber

The interest in replacing native wood with fast growing reforestation wood is recurrent, aiming at larger quantities of material in less time with no losses in its resistive properties. This paper consists in comparing the behavior of in natura structural timber parts with glued laminated timber, made with polyurethane resin based on castor oil, with regard to the resistance to axial compression. The assembly process of these pieces aims to achieve a similar or even superior resistance to the solid ones, considering that the MLC method allows the construction of structural pieces of many sizes and formats using different pieces of wood. Two this end, two species of wood, Pinus and Eucalyptus will be compared. The polyurethane resin, manufactured by the company Imperveg, was used in the process of glueing the stacks together. Evaluations will be performed according to NBR7190 (1997) aiming to characterize the physical and mechanical properties of the pieces and the results obtained will be submitted to statistical analysis by the Anova method.

Download Full-text

Multilayer Medium Density Particleboard Using Castor Oil-Based Polyurethane Resin and Hevea Brasiliensis Wood

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1025-1026.559 ◽

2014 ◽

Vol 1025-1026 ◽

pp. 559-563 ◽

Cited By ~ 2

Author(s):

Sarah David Muzel ◽

Larissa Ribas de Lima ◽

Maristela Gava ◽

José Nivaldo Garcia ◽

Juliana Cortez Barbosa ◽

...

Keyword(s):

Hevea Brasiliensis ◽

Castor Oil ◽

Mechanical Characteristics ◽

Mechanical Characterization ◽

Urea Formaldehyde ◽

Medium Density ◽

Technical Standard ◽

Multilayer Medium ◽

Polyurethane Resin ◽

European Standards

This work aimed to study the feasibility of using castor oil-based polyurethane (PU) resin, and rubberwood for the production of particleboards. Multilayer panels were produced using particles taken from RRIM 600 and GT1 clones of Hevea brasiliensis trees. Urea-formaldehyde (UF) and PU were used for bonding the particles. Physico-mechanical characterization was done according to the specifications of the European standards for wood-based panels. The average results were compared to values pre-established by the EN 312/2003 technical standard as well as between the above mentioned treatments. The results indicated that the use of PU and rubberwood has a great potential for particleboards production. The use of PU favors the production of boards with improved physical-mechanical characteristics.

Download Full-text

Particleboards with Agricultural Wastes: Sugar Cane Bagasse and Reforestation Wood

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.600.667 ◽

2014 ◽

Vol 600 ◽

pp. 667-676 ◽

Cited By ~ 4

Author(s):

Sergio Luis de Castro Junior ◽

Nubia Garzón ◽

Daniel Williams ◽

Flávio Luís Guesso ◽

Holmer Savastano Junior ◽

...

Keyword(s):

Sugarcane Bagasse ◽

Sugar Cane ◽

Castor Oil ◽

Sugar Cane Bagasse ◽

Furniture Industry ◽

Polyurethane Resin ◽

Structural Applications ◽

Wood Particles ◽

American Standard ◽

Similar Density

In this paper, it was consider the study of the use of sugarcane bagasse and wood particles, residues from the agricultural and the furniture industry, in order to add value to such materials. To add value to these materials it will be utilized in the manufacturing of hybrid panels consisting of wood particles and sugarcane bagasse in certain proportions (20%, 40% and 60%). For the production it was used the bi-component polyurethane resin based on castor oil. Analysis of the products was established based on the physical-mechanical standard NBR 14.810:2006. The hybrid panels were analyzed according to the data obtained in relation to the American standard ANSI A208.1-1999, in order to determine the best treatment for the possible use as a lining in agricultural buildings. Moreover, the hybrid panels were contrasted with panels of other formulations, with similar density. It was evident that the treatment constituting of 40% of sugar cane bagasse and 60% of wood particles had the best physical-mechanical, and showed a potential for the use in non-structural applications.

Download Full-text

Medium Density Particleboard (MDF) Produced with Pinus caribaea Fibers and Castor Oil Based Polyurethane Resin

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1025-1026.13 ◽

2014 ◽

Vol 1025-1026 ◽

pp. 13-16 ◽

Cited By ~ 2

Author(s):

Sérgio Augusto Mello da Silva ◽

Raquel Gonçalves ◽

André Luis Christoforo ◽

Francsico Antonio Rocco Lahr

Keyword(s):

Mechanical Properties ◽

Castor Oil ◽

Initial Moisture Content ◽

Resin Content ◽

Pressing Pressure ◽

Medium Density ◽

Pinus Caribaea ◽

Polyurethane Resin ◽

European Code ◽

New Research

This study aimed to investigate the possibility of using castor-oil based polyurethane resin (PU), formulated with 30 % solids and 70 % solvent, in production of Medium Density Fiberboards (MDF) withPinus caribaeafibers and two percentages of adhesive (5 and 10%). Six panels were fabricated under 4MPa pressing pressure, 190°C temperature. Initial moisture content of fibers was 9%. Properties investigated were: density of the panels; modulus of elasticity (MOE) and modulus or rupture (MOR) in static bending; and internal adhesion. Requirements of European Code EMB/IS-2 were used for comparison of results. Panels made with 10% of resin presented problems due gases expansion, disrupting the plates. For 5% resin content, mechanical properties investigated were above the requirements of the European Coded values. However, an undesirable odor prevented handling of the resin, in conditions here considered, which motivates the suggestion of new research in order to investigate different ratios between of solids and solvent contents, to completely enable the use of castor-oil based polyurethane resin MDF manufacture.

Download Full-text