Twisting in improving processing of waste-derived yarn into high-performance reinforced composite

Yu, Xichen; Fan, Wei; Azwar, Elfina; Ge, Shengbo; Xia, Changlei; Sun, Yanli; Gao, Xingzhong; Xue, Ye; Wang, Shujuan; Lam, Su Shiung

doi:10.1016/j.jclepro.2021.128446

Cited by 27 publications

(8 citation statements)

References 32 publications

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“…Non-chemically modified biomass materials are easily degraded by natural microorganisms and converted into water, carbon dioxide, and other small molecules, which can re-enter natural cycles; thus, biomass materials have the important characteristics of being renewable and biodegradable − The direct use of plant bodies with cellular structures as materials (e.g., wood, straw, rattan, bark, etc.) or biomass substrates derived from plants (e.g., cellulose, lignin, starch, plant protein, pectin, and xylan) to prepare plant-based biomass materials has the advantages of multiple sources and low cost and has become an important research direction in the development of biomass materials. − However, in the manufacturing process of plant-based biomass composites, the toxic adhesives are usually added to improve the mechanical properties of the products, which leads to the release of free formaldehyde in the products and seriously restricts the healthy development and survival of the downstream industry. − …”

Section: Introductionmentioning

confidence: 99%

Reengineering Waste Boxwood Powder into Light and High-Strength Biodegradable Composites to Replace Petroleum-Based Synthetic Materials

Yang

Zhang

Ren

et al. 2023

ACS Appl. Mater. Interfaces

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The preparation of biocomposites from renewable and sustainable forestry residues is an effective method to significantly reduce the environmental pollution caused by synthetic materials such as plastics and synthetic fibers. This study is aimed at developing a clean process for the large-scale production of high-performance green biocomposites without involving any chemical adhesive. Adhesive-free biocomposites with superior mechanical properties were prepared using HCl ball milling pretreatment and in situ synthesis. The nano-Fe3O4 was uniformly dispersed in the cellulose matrix, and when the matrix was subjected to external forces, the stress concentration effect around the particles absorbed energy, thus effectively improving the mechanical strength of the matrix. The flexural strength and tensile strength of BWP(Fe3O4) samples were increased by 159.04 and 175.34%, compared to that of regular wood powder control samples. The lignin melts under high temperature and pressure and then forms a carbonized layer on the surface of the biocomposites during the cooling process, which prevents the rapid penetration of water from the surface and also gives the biocomposites good thermal stability. The results of this research can avoid the harmful volatiles generated by chemical adhesive than that of the traditional fiberboard process and effectively replace petroleum-based synthetic materials prepared using the addition of various chemical additives, making it conform to the concept of environmental protection and sustainability.

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Section: Introductionmentioning

confidence: 99%

Reengineering Waste Boxwood Powder into Light and High-Strength Biodegradable Composites to Replace Petroleum-Based Synthetic Materials

Yang

Zhang

Ren

et al. 2023

ACS Appl. Mater. Interfaces

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“…Currently, mechanical recovery and chemical recovery are mainly employed for the recycling of waste cotton textiles (Yu et al 2021;Haule et al 2016). Mechanical recycling exhibits advantages of costeffectiveness, facile processing, and mass production.…”

Section: Introductionmentioning

confidence: 99%

Closed-loop recycling of colored regenerated cellulose fibers from the dyed cotton textile waste

Liu

Fan²,

Miao³

et al. 2022

Cellulose

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Worldwide, 45 million tons of waste cotton textiles are produced annually, of which 75% is burned and buried, leading to serious environmental pollution. In this study, a method for directly preparing colored regenerated cellulose bers (CRCFs) from dyeing cotton textile waste (DCTW) was demonstrated. The tensile strength of CRCFs reached 226 MPa, which was equivalent to that of commercial viscose bers.CRCFs exhibited excellent color fastness and hydrophilicity. In addition, CRCFs can be reprocessed into secondary CRCFs. The tensile strength of secondary CRCFs was 14.64% less than that of the primary CRCFs due to the reduction in the polymerization degree of secondary CRCFs; However, it also can be woven into fabrics. The exploration of the secondary utilization of CRCFs provides an experimental basis for prolonging the service life of DCTW. This approach of preparing CRCFs achieves closed-loop recycling of waste colored cellulose textiles and prevents environmental pollution caused by decoloring and dyeing.

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“…[20][21][22][23] Researchers have demonstrated that natural fibers such as the bark fibers of Morinda citrifolia, silk, kenaf, Muntingia calabura, and waste materials based on reusing post-consumer materials such as waste espresso coffee capsules, and yarn are novel potential sources of environmentally friendly, sustainable raw materials for polymer composite reinforcement, which are suitable for lightweight structural applications. [24][25][26][27][28][29] Under tensile and flexural studies on unidirectional fiber-reinforced hybrid green composites, coir-kenaf composites had the highest flexural modulus, almost 70% higher than other compounds. It was discovered that combining bamboo and kenaf fibers' high strength and stiffness with coir fibers' high resilience, increases tensile and flexural strength of the composites.…”

Section: Introductionmentioning

confidence: 99%

Lightweight biodegradable hybrid composite sandwich panel under three‐point bending loads—Experimental and numerical

2022

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In this research, the flexural behavior of lightweight biodegradable sandwich panel consisting of the outer green composite facesheets with polylactic acid (PLA) matrix and natural kenaf and cotton fibers, with five various stacking types of standard cardboard egg boxes cores under three-point bending loads as an environmentally friendly alternative to conventional synthetic sandwich structures is investigated. The stiffness of this structure in bending is also studied using finite element simulations. The thickest specimen absorbed the most energy during flexural testing, however, the specimens containing two egg boxes inside each other were found to have a higher strength and stiffness. Using finite element method simulations to investigate the influence of composite facesheet thickness on flexural loads, it was found that the amount of the load carried by each sandwich specimen with doubled thickness was increased at least by about 50%. By changing the core's material from cardboard egg box to bamboo/PLA or kenaf-cotton/PLA egg boxes, stiffness and strength and also the energy absorption were significantly increased. Therefore, it is possible to fabricate composite sandwich structures which are light and biodegradable for green environment and has the potential to replace many plastic products and structures that are used in food packaging and medium loads structures applications.

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Twisting in improving processing of waste-derived yarn into high-performance reinforced composite

Cited by 27 publications

References 32 publications

Reengineering Waste Boxwood Powder into Light and High-Strength Biodegradable Composites to Replace Petroleum-Based Synthetic Materials

Reengineering Waste Boxwood Powder into Light and High-Strength Biodegradable Composites to Replace Petroleum-Based Synthetic Materials

Closed-loop recycling of colored regenerated cellulose fibers from the dyed cotton textile waste

Lightweight biodegradable hybrid composite sandwich panel under three‐point bending loads—Experimental and numerical

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