Thermal, Mechanical, Morphological and Aesthetical Properties of Rotational Molding PE/Pine Wood Sawdust Composites

Martins, Carla I.; Gil, Vitória; Rocha, Sara

doi:10.3390/polym14010193

Cited by 10 publications

(6 citation statements)

References 55 publications

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“…By-products from both the timber and agricultural industries have also become a source of fillers that can be used in the production of polymer-based composites [ 7 , 8 ]. Wood–Polymer composites (WPCs) combine the advantages of both synthetic polymers and lignocellulosic fillers [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing

et al. 2022

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In this study, the possibility of using sawdust, a by-product of primary wood processing, as a filler (WF) for rigid polyurethane (PUR) foams was investigated. The effects of the addition of 5, 10, 15 and 20% of WF particles to the polyurethane matrix on the foaming process, cell structure and selected physical-mechanical properties such as density, thermal conductivity, dimensional stability, water absorption, brittleness, compressive and bending strengths were evaluated. Based on the results, it was found that the addition of WF in the amount of up to 10% does not significantly affect the kinetics of the foam foaming process, allowing the reduction of their thermal conductivity, significantly reducing brittleness and maintaining high dimensional stability. On the other hand, such an amount of WF causes a slight decrease in the compressive strength of the foam, a decrease in its bending strength and an increase in water absorption. However, it is important that in spite of the observed decrease in the values of these parameters, the obtained results are satisfactory and consistent with the parameters of insulation materials based on rigid PUR foam, currently available on the market.

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Section: Introductionmentioning

confidence: 99%

Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing

et al. 2022

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“…The size of these particles in making WPC affects density, porosity, and resistance to air absorption. Apart the size, the sawdust material's physical properties depend on the wood species [9,10]. Hardwood cell walls, apart from cellulose and hemicellulose, also contain other components, namely guaiacyl and syringyl lignin, while softwood only contains syringyl lignin [11].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Cellulose, Hemicellulose and Lignin on The Physical and Thermal Properties of Wood Sawdust for Bio-Composite Material Fillers

Budiyantoro,

Yudhanto

2024

RCMA

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This research compares the physical and thermal characteristics of three kinds of wood sawdust applied to bio-composites filler. Wood Sawdust of Sengon (softwood), Pine (softwood), and Teak (hardwood) have a crystalline structure (cellulose). The hydrochloric acid test found cellulose and other lignocellulosic content, such as hemicellulose and lignin. It contributed to the plant's strength. Adding a good filler in the polymer as a matrix with a high cellulose composition can increase the inter-mechanical bonding of bio-composites. Sengon sawdust has 48.98% cellulose content and contributes to the highest crystallinity index of 52.8%, calculated by the X-ray diffraction test. A high aspect ratio (L/D) on the bio-composite positively impacted the mechanical strength of bio-composite materials. The Scanning Electron Microscope (SEM) can show the morphology and calculate the aspect ratio of wood sawdust. Aspect ratio of wood sawdust from high to low i.e. Sengon (5.8), Pine (3.9), and Teak (1.5), respectively. Fourier transform infrared (FTIR) test to detect the twelve absorbance frequencies of the cellulose, hemicellulose, and lignin. Thermal degradation of all wood sawdust has the same initial degradation temperature (Tonset) by 255℃ and maximum degradation temperature (Tmax2) by 300℃.

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“…Reusing industrial waste and creating environmentally friendly products from renewable resources are examples of how human consciousness is influencing efforts to achieve sustainability and reduce the impact on the environment. The fact that this demand has been increasing over the past few decades indicates that the manufacture of high-value bio-based products and the expanding field of polymer composites can both be addressed by bio-economy and circular economy strategies [3][4][5][6][7].To maintain a product's usefulness, material qualities, and economic value over an extended length of time, structural design may be required [8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Recycled Polyethylene Terephthalate Composites Reinforced with Sisal Fibre and Wood Sawdust

Ferede,

Muhammed,

Kassa

et al. 2024

Text Leather Rev

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Extensive use of polymers in daily life has led to increased related waste, giving rise to environmental problems. In the modern day, environmental and ecological concerns have made plastic recycling a significant issue. The majority of the world's solid trash is made up of plastic garbage, which is composed of different polymer chains. A particularly appealing method of getting rid of unwanted plastic is mechanical recycling, though there are other ways to recycle plastic as well. The recycled plastics can also be reinforced with either natural or synthetic textile fibres to manufacture composite materials. This research aims to evaluate the physical and mechanical characteristics of sisal fibre and wood sawdust-reinforced recycled polyethylene terephthalate [RPET] composites. The amount of sisal fibre content in the composites varied from 10%, 15%, 20%, and 25% to 30% by weight. Whereas the wood sawdust was used at 5% for each sample of composite. The composites were manufactured by the melt-mixing method. The effects of fibre loading on various composite characteristics were investigated using tensile strength, tensile modulus, flexural strength, flexural modulus, impact strength, compressive strength, density, and water absorption. The results show that a maximum tensile strength of 84.96 MPa, a tensile modulus of 1.77 GPa, a flexural strength of 230.8 MPa, a flexural modulus of 11.24 GPa, an impact strength of 18.96 KJ/m2, and a compressive strength of 194.8 MPa were obtained. The water absorption of the composite increased with the increase in fibre weight proportion, and the density of composites decreased with increasing sisal fibre weight. From the results of this study, it can be concluded that a better combination of results has been found for sisal fibre (25%), wood dust (5%), and RPET (70%). Therefore, sawdust and sisal fibre can be used as filler and reinforcement in the RPET matrix, which will reduce cost and provide environmental benefits.

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Thermal, Mechanical, Morphological and Aesthetical Properties of Rotational Molding PE/Pine Wood Sawdust Composites

Cited by 10 publications

References 55 publications

Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing

Properties of Rigid Polyurethane Foam Filled with Sawdust from Primary Wood Processing

Comparative Analysis of Cellulose, Hemicellulose and Lignin on The Physical and Thermal Properties of Wood Sawdust for Bio-Composite Material Fillers

Fabrication and Characterization of Recycled Polyethylene Terephthalate Composites Reinforced with Sisal Fibre and Wood Sawdust

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