Utilization of decayed wood for polyvinyl chloride/wood flour composites

Ge, Shengbo; Zuo, Shida; Zhang, Minglong; Luo, Yonghong; Yang, Rui; Wu, Yingji; Zhang, Ye; Li, Jianzhang; Xia, Changlei

doi:10.1016/j.jmrt.2021.03.026

Cited by 48 publications

(14 citation statements)

References 27 publications

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“…[92] Una de las ventajas de los WPC es que teóricamente son vistos como compósitos verdes que utilizan solamente recursos renovables, por lo que se consideran compostables. Han sido elaborados a partir de madera decaída, ofreciendo un método para recuperar recursos de biomasa y mejorar el medio ambiente ecológico [4] . Esto permite que sean vistos como prometedores en el área de la construcción, especialmente cuando los arquitectos buscan un certificado de construcción verde [93] .…”

Section: Compuestos Madera-plástico En El Diseño De Productosunclassified

“…Los compuestos de madera y plástico, denominados en inglés Wood-Plastic Composites (WPC), son aquellos que contienen elementos a base de madera, como tablones, chapa, fibras o partículas que son combinados con una matriz polimérica para crear un material compuesto [1]- [3] , es decir, es la combinación de elementos de madera con polímeros termoestables o termoplásticos [1] . Estos compuestos se han desarrollado exitosamente como materiales de ingeniería, con importantes aplicaciones en la construcción, sector automotriz, empaques y materiales de decoración [4], [5] . La participación de mercado de los WPC ha crecido anualmente alrededor del 3 % a partir de 2012 [6], [7] y la tendencia continúa en aumento [8] .…”

Section: Introductionunclassified

“…La diferencia de precio entre ambos productos es de 372 %. Comparados con la madera, los WPC muestran una gran resistencia y dureza; niveles bajos de costo, densidad y emisiones de CO 2 ; durabilidad; biodegradabilidad, y además requieren un mantenimiento mínimo, absorben menos humedad, poseen una gran estabilidad dimensional y mayor resistencia a la degradación y desgaste biológicos [4], [12], [13] .…”

Section: Introductionunclassified

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Posibilidades de nanocompuestos madera-plástico en el diseño de productos

Montes-Villagrán

Martel-Estrada

2021

CULCYT

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Los compuestos de madera-plástico han sido objeto de interés por parte de investigadores por sus propiedades mejoradas, en comparación con los productos basados únicamente en plástico o madera. Sin embargo, durante algunos años se han estudiado los efectos de algunos nanorrellenos sobre estos compuestos. La presente investigación tiene como objetivo la revisión de las investigaciones más relevantes en trabajos publicados en revistas científicas sobre los efectos de los nanorrellenos en los compuestos de madera y plástico. El material bibliográfico consultado se encuentra entre los años 2011 y 2021. En este estudio se discuten los beneficios ambientales, la limitación de las aplicaciones y los efectos de algunas nanopartículas en estos compuestos con plástico virgen y reciclado. Se concluye que los nanocompuestos de madera-plástico son una excelente opción de material con aplicaciones potenciales. No obstante, se sugiere visualizar las alternativas que existen para el uso de nanocompuestos madera-plástico en el diseño de producto.

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Section: Compuestos Madera-plástico En El Diseño De Productosunclassified

Section: Introductionunclassified

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Posibilidades de nanocompuestos madera-plástico en el diseño de productos

Montes-Villagrán

Martel-Estrada

2021

CULCYT

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“…In the early 1990s, many countries began to use waste plastics for WPC manufacturing [16]. In recent years, various studies reported this technique as innovative to study mechanical properties of WPCs prepared by different plastic wastes combined with different wood flour proportions of wood waste to formulate excellent properties and the best performance of WPC [17,18]. These materials are used for sustainable development to overcome MSW generation with the concept of compatibility, low thermal conductivity, non-toxic, low density, high durability and represents good mechanical properties [19,20].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterisation of Sustainable Wood Plastic Composites Extracted from Municipal Solid Waste

et al. 2021

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Municipal solid waste (MSW) contains plastic waste that can be used as a sustainable green substitute to reduce oil footprints, CO2 emissions, and environmental pollution. This study aims to recycle plastic waste by manufacturing wood-plastic composites and to improve its mechanical properties by using additives, coupling agents, and lubricants. These composites are prepared by mixing 40–70% of wood flour with 20–25% of a polymer matrix. Wood was degraded at 220 °C, and then the composites were processed at 50 °C. The manufacturing process carried out in the study involved wood waste meshing, drying, shredding, drying, trimming, filling, blending, compounding, and extrusion moulding. The compounding of composites was accomplished in twin-screw extruders. Once the mixture was uniformly mixed, its final shape was given by a two-step extrusion moulding. Previously, researchers aimed at enhancing the mechanical properties of the composites, but our research focus was to improve their durability for different industrial applications. The results suggest that the impact strength is 17 MPa with 50% of wood powder ratio while the maximum value for the tensile strength is 32.5 MPa. About 50% of an increase in wood powder resulted in 8.1% bending strength increase from 26.1 to 32.8 MPa. Reducing the plastic matrix and the wood-particles water swelling ratio resulted in better mechanical properties. The wood species also affected the mechanical properties with their excellent dimensional stability and less variability. A high proportion of wood fibre tends to increase its steady-state torque and viscosity. The mechanical properties against different wood-flour proportions indicate that composite materials exhibit superior water swelling behaviour and extrusion quality.

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“…[4][5][6] In order to alleviate the pollution caused by PCPs, efforts have been made to develop renewable, biodegradable, and eco-friendly bio-plastics (BPs) from materials such as cellulose, lignocellulose, polylactic acid, polyhydroxyalkanoates, starch, and proteins. [7][8][9][10] Production of BPs from different biomass resources (largely lignin, cellulose, and hemicellulose) [11] reduces reliance on fossil fuels and also cuts greenhouse gas emissions. For example, using a bottom-up strategy, cellulose nanofibrils, obtained by TEMPO-mediated oxidation, can be used to prepare cellulose nanopaper as a substitute for plastics.…”

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confidence: 99%

From Corn Husks to Scalable, Strong, Transparent Bio‐Plastic Using Direct Delignification‐Splicing Strategy

Zhang

Zhu

et al. 2022

Advanced Sustainable Systems

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Biomass‐based plastics (BPs), produced from natural polymers using a bottom‐up strategy, have been used to alleviate the environmental pollution caused by petrochemical‐based plastics (PCPs). Such BPs, however, typically require complex manufacturing processes, resulting in higher costs and reduced eco‐friendly features. Herein, a delignification‐splicing‐based strategy without adhesives for directly converting corn (Zea mays L.) husks to corn husk‐based plastic (CHP) is described. During this process, lignin is removed from the corn husks and the pores collapse to form a dense structure. The CHP, which combines high mechanical strength (118 MPa) and a Young's modulus of 7.8 GPa with excellent light transmittance (86%), can be prepared in large sheets and can potentially replace non‐renewable, non‐biodegradable PCPs. Each hm2 of cornfield can generate 1.2 hm2 of CHP annually using the strategy. The process is simple, green, scalable, and as low cost as traditional PCPs since the only consumables are corn husks, NaClO, and water. Functional CHPs, such as fluorescent or hydrophobic CHPs, can be fabricated by impregnating delignified corn husk with carbon dots before pressing or by post‐pressing hydrophobilization, respectively. This work develops an alternative green and sustainable technology for eco‐friendly BPs, adds value to agricultural waste, and reduces greenhouse gas emissions.

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Utilization of decayed wood for polyvinyl chloride/wood flour composites

Cited by 48 publications

References 27 publications

Posibilidades de nanocompuestos madera-plástico en el diseño de productos

Posibilidades de nanocompuestos madera-plástico en el diseño de productos

Preparation and Characterisation of Sustainable Wood Plastic Composites Extracted from Municipal Solid Waste

From Corn Husks to Scalable, Strong, Transparent Bio‐Plastic Using Direct Delignification‐Splicing Strategy

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