scholarly journals Production and evaluation of particleboard made of sawdust and sugarcane bagasse with polyurethane resin based on castor oil

2019 ◽  
Vol 23 ◽  
pp. 9
Author(s):  
Raissa Pravatta Pivetta ◽  
Ana Laura Soler Cunha Buzo ◽  
Estéfani Suana Sugahara ◽  
Sérgio Augusto de Mello da Silva
Keyword(s):  
Sustainable Development ◽  
Moisture Content ◽  
Sugarcane Bagasse ◽  
Castor Oil ◽  
Agricultural Waste ◽  
Sugar Cane Bagasse ◽  
New Materials ◽  
Pressing Time ◽  
Polyurethane Resin ◽  
Nominal Density

Among the goals for sustainable development in Brazil, studies have been conducted to better use of industrial and agricultural waste to promote adequate final disposal of these and generate new materials that minimize the exploitation and use of natural resources. In this work, the proposal is to make and evaluate boards with nominal density of 0.80 g.cm-3 using sugar cane bagasse, sawdust and polyurethane resin derived from castor oil. Thus, three treatments with different percentages of particles and 10% of PU-castor were proposed for the preparation of boards that were pressed with a pressure of 50 kgf.cm-2, a temperature of 100°C and a pressing time of ten minutes. The boards were evaluated for their physical properties (density, moisture content and swelling) and mechanical (static flexure and perpendicular traction) according to NBR 14810: 2-2013 and presented average values density of 936 to 937 kg.m-3, swelling after 24 hours of 5.0 to 7.2%, modulus of resistance to static bending of 22 to 23 MPa and perpendicular traction of 0.71 to 0.87 MPa. The results obtained with the tests indicate the great potential of use of sugarcane bagasse and sawdust to produce boards of high density particles.

Particleboard Produced with Sawmill Waste of Different Wood Species

2014 ◽  
Vol 884-885 ◽  
pp. 689-693 ◽  
Author(s):  
Luciane Simal Alves ◽  
Sérgio Augusto Mello da Silva ◽  
Maximiliano dos Anjos Azambuja ◽  
Luciano Donizeti Varanda ◽  
Andre Luis Christofóro ◽  
...  
Keyword(s):  
Moisture Content ◽  
Wood Species ◽  
Castor Oil ◽  
Urea Formaldehyde ◽  
Specific Pressure ◽  
Thickness Swelling ◽  
Pressing Temperature ◽  
Pressing Time ◽  
Polyurethane Resin ◽  
Nominal Density

This study aimed to investigate physical performance of particleboards produced with waste from sawmills, containing different wood species, and two adhesives: urea-formaldehyde (UF) based resin and castor-oil (PU) based bi-component polyurethane resin. Panels were produced with nominal density 0.8gcm-3; pressing temperature 110°C; pressing time 10 min; specific pressure 5 MPa. Water absorption (2 and 24h); thickness swelling (2 and 24h); density; and moisture content were investigated. Results confirmed that the produced panels presented compatible physical properties in comparison with other researches referred in literature, proving the feasibility of inputs employed. Panels produced PU showed better performance than those produced with UF.

Particleboards with Agricultural Wastes: Sugar Cane Bagasse and Reforestation Wood

2014 ◽  
Vol 600 ◽  
pp. 667-676 ◽  
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.

scholarly journals THE USE OF MODIFIED SUGARCANE BAGASSE IN NATURAL RUBBER COMPOUNDING

2020 ◽  
Vol 45 (6) ◽  
Author(s):  
A.K. Akinlabi ◽  
R.N. Laleye ◽  
S. B. Akinfenwa ◽  
A.M Mosaku ◽  
A. A. Falomo ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Carbon Black ◽  
Moisture Content ◽  
Natural Rubber ◽  
Sugarcane Bagasse ◽  
Agricultural Waste ◽  
Natural Rubber Latex ◽  
Total Solid Content ◽  
Pixe Analysis ◽  
Better Than

Natural rubber (NR) is a renewable agricultural resource which has gained fast technological innovation due to some inherent properties and its renewability. Compounding of natural rubber with modified and unmodified nano-sized agricultural waste is of interest because it is economical, environmentally friendly, cheap and readily available, hence, the trial of sugarcane bagasse as an additive in Natural Rubber compounding. The sugarcane bagasse was sourced locally, milled to fine powder and sieved to <100µm in size. Characterization of Natural rubber latex viz-a-viz: Dry rubber content (DRC), Total solid content (TSC), Ash content, Moisture content were carried out. The Sugarcane bagasse was modified via Hydroxylation using 10% Sodium hydroxide (NaOH). The modified sugarcane baggase (MSB) and unmodified sugarcane baggase (USB) were characterized viz-a-viz: their pH, moisture content, Fourier transform infrared spectroscopy and micro-pixe analysis. The extent of modification was determined via titration. The NR was thereafter compounded with USB, MSB, CB, admix of MSB with CB and admix of USB with CB to give five vulcanizates, labeled A – E ( A- 40 parts CB, B- 40 parts USB, C- 40 parts MSB, D- 20 CB : 20 USB while E was 20 CB : 20 MSB). The vulcanizates were then subjected to physico-mechanical tests viz-a-viz: Tensile strength, Modulus Elasticity, Hardness, Elongation @ break and Yield elongation. The result revealed that mix A (control) with 40 CB has the highest Tensile strength compared to the other mixes, which was followed by mixes E >D >C while B gave the least tensile strength, showing that carbon black acted better than modified sugarcane bagasse and better than unmodified sugarcane bagasse. Compatibility of the unmodified and hydroxylated sugarcane bagasse with natural rubber and carbon black was also established. The extent of the solubility of the mixes in ethanol, kerosene and petrol were investigated to determine the extent of crosslinking and mix A was very resistant to all the solvents followed by mixes C then E then D while mix B dissolves readily.

Use of Castor Hull and Sugarcane Bagasse in Particulate Composites

2015 ◽  
Vol 668 ◽  
pp. 381-389
Author(s):  
Danillo Wisky Silva ◽  
Camila Láis Farrapo ◽  
Rafael Farinassi Mendes ◽  
Lourival Marin Mendes ◽  
Gustavo Henrique Denzin Tonoli ◽  
...  
Keyword(s):  
Sugarcane Bagasse ◽  
Raw Materials ◽  
Ricinus Communis ◽  
Agricultural Waste ◽  
Urea Formaldehyde ◽  
Saccharum Officinarum ◽  
Modulus Of Rupture ◽  
Particulate Composites ◽  
Pressing Time ◽  
Pinus Oocarpa

Particulate composites can be manufactured using low-quality raw materials, thus presents the option of using various non-wood materials, including agricultural waste. This study aimed to evaluate the effect of using castor hull and sugarcane bagasse on the physico-mechanical properties of particulate composites. Particleboards were produced using raw materials such as Pinus oocarpa wood, castor hull (Ricinus communis), and sugarcane bagasse (Saccharum officinarum) in different proportions: 1) 100% P. oocarpa wood; 2) 100% castor hull; 3) 100% sugarcane bagasse; 4) 50% P. oocarpa wood and 50% castor hull; and 5) 50% P. oocarpa wood and 50% sugarcane bagasse. The produced panels had a nominal density of 0.70 g/cm3, 8% urea-formaldehyde adhesive, specific pressure of 3.92 MPa, temperature of 160°C, and pressing time of 8 min. The panels produced with sugarcane bagasse, with or without pine wood, showed better dimensional stability. The panels produced with sugarcane bagasse only or with castor hull only showed the lowest values ​​of modulus of rupture and elasticity to the bending. However, despite these differences among the treatments, all treatments met the requirements of the EN 312 (2003) standard for internal use panels.

scholarly journals LAMINAR INCLUSION IN SUGARCANE BAGASSE PARTICLEBOARD

CERNE ◽  
2017 ◽  
Vol 23 (2) ◽  
pp. 153-160
Author(s):  
Stefania Lima Oliveira ◽  
Ticyane Pereira Freire ◽  
Tamires Galvão Tavares Pereira ◽  
Lourival Marin Mendes ◽  
Rafael Farinassi Mendes
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Sugarcane Bagasse ◽  
Wood Species ◽  
Sugar Cane ◽  
Physical And Mechanical Properties ◽  
Pressure Level ◽  
Sugar Cane Bagasse

ABSTRACT The objective of this study is to assess the effect of the laminar inclusion on the physical and mechanical properties of sugarcane bagasse particleboard. We used the commercial panels of sugarcane bagasse produced in China. To evaluate the effect of the laminar inclusion was tested two wood species (Pinus and Eucalyptus) and two pressures (10 and 15 kgf.cm-2) along with a control (without laminar inclusion). The panels with laminar inclusion obtained improvements in the physical properties, with a significant reduction in the WA2h, WA24h and TS2h. There was a significant increase in the properties MOE and MOR parallel and Janka hardness, while the properties MOE and MOR perpendicular decreased significantly. The pinus and eucalyptus veneers inclusion resulted in similar results when added to the panel with a 10 kgf.cm-2 pressure. The use of 15 kgf.cm-2 pressure is not indicated for the pinus veneer inclusion in sugar cane bagasse panels. There was no effect of the pressure level when evaluating the eucalyptus veneer inclusion on the properties of the sugarcane bagasse panels.

scholarly journals Evaluation of pressing time in the production of edge glued panel with adhesive polyurethane derived from castor oil

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Richard Eduard Mölleken ◽  
Rosilani Trianoski ◽  
Salvador Claro Neto ◽  
Caroline Rodrigues Pereira ◽  
Setsuo Iwakiri ◽  
...  
Keyword(s):  
Castor Oil ◽  
Pressing Time

scholarly journals Portland clinker with civil construction waste: influence of pellet geometry on the formation of crystalline phases

2020 ◽  
Vol 20 (4) ◽  
pp. 205-223
Author(s):  
Fernanda Nepomuceno Costa ◽  
Daniel Véras Ribeiro ◽  
Cléber Marcos Ribeiro Dias
Keyword(s):  
Sustainable Development ◽  
Portland Cement ◽  
Rietveld Method ◽  
Industrial Process ◽  
3D Printer ◽  
New Materials ◽  
X Ray Diffraction ◽  
Construction Waste ◽  
X Ray ◽  
Portland Cement Association

Abstract Efforts to reduce greenhouse gas emissions in the context of sustainable development have intensified, with the development of research aimed at the production of new materials and binders for construction. This article analyzes the influence of pellet geometry in the production of clinkers, with the incorporation of construction waste (CCW). Procedures adapted from the method proposed by Brazilian Portland Cement Association were adopted in studies of laboratory clinkers, in an attempt to simulate the stages of the industrial process. Pellets were prepared with the same formulation, however, with four different geometries: spherical, with diameters of 1 cm, 2 cm and 3 cm, with manual molding, and semi-spherical, with a diameter of 2 cm, using molds of PLA (polylactic acid) printed on a 3D printer to facilitate the molding of the clinkers in a standardized way. Clinkers were characterized mineralogically by x-ray diffraction (XRD) and the Rietveld method was used to quantify the phases. Variations in the quantities of the alite and belite phases were observed depending on the geometry of the pellets, although the same calcination conditions were used. This is probably due to the variation in the surface area (exposure area) and the gradients of the cooling rate.

OSB Panels with Balsa Wood Waste and Castor Oil Polyurethane Resin

2018 ◽  
Vol 11 (2) ◽  
pp. 743-751 ◽  
Author(s):  
Guilherme Henrique Ament Barbirato ◽  
Wanley Eduardo Lopes Junior ◽  
Victor Hellmeister ◽  
Mariana Pavesi ◽  
Juliano Fiorelli
Keyword(s):  
Castor Oil ◽  
Wood Waste ◽  
Balsa Wood ◽  
Polyurethane Resin

scholarly journals Effects of Physico-Chemical Parameters on Actinomycetes Communities during Composting of Agricultural Waste

2019 ◽  
Vol 11 (8) ◽  
pp. 2229
Author(s):  
Yuanping Li ◽  
Yanrong Chen ◽  
Yaoning Chen ◽  
Yanxin Wu ◽  
Chun Zhang ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Moisture Content ◽  
16S Rdna ◽  
Community Composition ◽  
Agricultural Waste ◽  
Chemical Parameters ◽  
16S Rdna Gene ◽  
Rdna Gene ◽  
Gene Abundance ◽  
Physico Chemical

The objective of this study was to investigate the influence of physico-chemical parameters on Actinomycetes communities and to prioritize those parameters that contributed to Actinomycetes community composition during the composting of agricultural waste. Denaturing gradient gel electrophoresis of polymerase chain reaction (PCR-DGGE) and redundancy analysis (RDA) were used to determine the relationships between those parameters and Actinomycetes community composition. Quantitative PCR (qPCR) and regression analysis were used to monitor the 16S rDNA copy numbers of Actinomycetes and to analyse the correlations between physico-chemical parameters and Actinomyces 16S rDNA gene abundance, respectively. The RDA results showed that moisture content, water soluble carbon (WSC) and pH (p < 0.05) made the main contributions to the temporal variations of Actinomycetes community composition. The output of the regression analysis indicated that moisture content (R2 = 0.407, p < 0.01) showed a negative linear relationship with the Actinomyces 16S rDNA gene abundance.

The characterisation, treatment and sustainable reuse of biosolids in Ireland

2001 ◽  
Vol 44 (10) ◽  
pp. 35-40 ◽  
Author(s):  
J. Bartlett ◽  
E. Killilea
Keyword(s):  
Sustainable Development ◽  
Waste Management ◽  
Policy Development ◽  
Technology Development ◽  
Agricultural Waste ◽  
Good Practice ◽  
Western Boundary ◽  
The European Union ◽  
Infrastructure Provision ◽  
Irish Government

Ireland is an island country on the western boundary of the European Union. A suite of environmental legislation over the last decade has combined to increase the amount of municipal sludge for treatment fourfold, while, simultaneously, eliminating traditional disposal methods. The Irish Government has instituted a comprehensive programme of policy development, infrastructure provision and drafting of “codes of good practice” to meet these environmental and legislative challenges. As the programme has developed, it has become clear that the sludge/biosolids issue shares many of the philosophical and logistical elements of other environmental issues that are developing apace in Ireland, including municipal waste management, agricultural waste management and overall integrated development. In many ways, it represents a model of the ultimate “sustainable development” issue. To provide specific data for decision making and policy/infrastructure/technology development, the Irish Government has funded a US$600k programme of research in The Characterisation, Treatment and Sustainable Reuse of Biosolids. The design philosophy of the programme is a “cradle-to-grave” approach, in order to integrate the outcomes of specialised research studies into an overall sustainable development model.

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