Repurposing Plastic Wastes in Non-conventional Engineered Wood Building Bricks for Constructional Application – A Mechanical Characterization using Experimental and Statistical Analys

Maddodi, Balakrishna; Lathashri, U A; Devesh, Sonal; Rao, Asha Uday; Shenoy, Gowri B; Wijerathne, Heshan Thenuka; Sooriyaperkasam, Nilakshman; M, Prasanna Kumar

doi:10.30919/es8d696

Cited by 27 publications

(15 citation statements)

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“…In recent years, GO-based and nanomaterial-based polymer composites have attracted much attention as a new advanced material due to superior mechanical, thermal, and electrical properties, if compared to other pure polymers, for potential applications such as gas barriers, membranes, optical materials, or flame-resistant materials . The Brunauer–Emmett–Teller (BET) specific surface area and pore size distribution of composites can also be identified by the N 2 adsorption–desorption isotherm. − In previous studies, polyacrylamide (PAM) exhibited good compatibility with GO due to amino functional groups, and PAM composited with GO (GO/PAM) has been widely used in tissue engineering and other fields since their mechanical properties are enhanced more than pure PAM .…”

Section: Resultsmentioning

confidence: 99%

“…The uniformly aligned 3D foam with a large specific surface area has great potential for multifield applications such as electro-optics, supercapacitors, or energy storage. 75,76 In recent years, GO-based and nanomaterial-based polymer composites have attracted much attention as a new advanced material due to superior mechanical, thermal, and electrical properties, 77 if compared to other pure polymers, 78 for potential applications such as gas barriers, membranes, optical materials, or flame-resistant materials. 79 The Brunauer− Emmett−Teller (BET) specific surface area and pore size distribution of composites can also be identified by the N 2 adsorption−desorption isotherm.…”

Section: Resultsmentioning

confidence: 99%

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Graphene Oxide Liquid Crystals Aligned in a Confined Configuration: Implications for Optical Materials

Trung

Mishra

Subedi

et al. 2022

ACS Appl. Nano Mater.

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Orientation control of two-dimensional (2D) colloidal liquid crystals in both microscopic and macroscopic scales holds massive promise for improved multifield applications. In this respect, graphene oxide (GO) is used as a platform substance for 2D carbon-based lyotropic liquid crystal (LC) materials. Here, we design the directed alignment of aqueous GO-LC dispersion confined in a rectangular capillary tube. The isotropic GO dispersion is loaded into a horizontal capillary and subsequently concentrated to the LC phase by slow water evaporation at open ends of the tube. An obtained surprising result, GO layers organize normal to the inner surfaces of the capillary with a highly ordered orientation of the optic axis over tens of millimeters. Such transverse orientation of GO layers originates from the meniscus region and then moves toward the center, caused by the interfacial effect and the sequential isotropic-to-nematic transition. This aligned mesomorphic system is characterized via optical retardation, nematic order parameter, absorption, and modified Cauchy’s transmission equation about the dependency of both birefringence and wavelength with concentration. Finally, the aligned GO-LC layers are preserved in a polymer composite matrix by photopolymerizing the evaporation-aligned GO/acrylamide-LC dispersion confined in a capillary. This composite shows higher thermal stability than polyacrylamide until 500 °C of about 6.1%. Our experimental findings provide efficient advantages for controlling the orientation of GO-LC and 2D materials, beneficial for diverse optical applications due to their directional ordering.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Graphene Oxide Liquid Crystals Aligned in a Confined Configuration: Implications for Optical Materials

Trung

Mishra

Subedi

et al. 2022

ACS Appl. Nano Mater.

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“…The hydrocracking of waste plastic was pyrolyzed into high-quality liquid fuel using various catalysts, e.g., zeolite [ 188 ]. On the other hand, PET can be reprocessed by mechanical recycling to develop wooden construction bricks for building purposes, with a composition of 75 wt% wood fiber and 25 wt% plastic waste, with a total hardness up to 21.270 HRR [ 189 ]. Therefore, the mechanical recycling of plastics can be applied in large-scale industries, to solve environmental issues [ 190 ].…”

Section: Waste Plastic Recycling and Technologymentioning

confidence: 99%

Current Prospects for Plastic Waste Treatment

et al. 2022

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The excessive amount of global plastic produced over the past century, together with poor waste management, has raised concerns about environmental sustainability. Plastic recycling has become a practical approach for diminishing plastic waste and maintaining sustainability among plastic waste management methods. Chemical and mechanical recycling are the typical approaches to recycling plastic waste, with a simple process, low cost, environmentally friendly process, and potential profitability. Several plastic materials, such as polypropylene, polystyrene, polyvinyl chloride, high-density polyethylene, low-density polyethylene, and polyurethanes, can be recycled with chemical and mechanical recycling approaches. Nevertheless, due to plastic waste’s varying physical and chemical properties, plastic waste separation becomes a challenge. Hence, a reliable and effective plastic waste separation technology is critical for increasing plastic waste’s value and recycling rate. Integrating recycling and plastic waste separation technologies would be an efficient method for reducing the accumulation of environmental contaminants produced by plastic waste, especially in industrial uses. This review addresses recent advances in plastic waste recycling technology, mainly with chemical recycling. The article also discusses the current recycling technology for various plastic materials.

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“…With the rapid development of traditional plastics, a large number of discarded plastics and their subsequent disposal have become an urgent problem to be solved [1][2][3][4]. The concept of environmental protection is constantly upgraded and optimized around the world, and the concept of sustainable development is put forward, which makes bio-based and biodegradable materials stand out among many traditional plastics [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of poly(butanediol sebacate-butanediol) terephthalate (PBSeT) reinforced by hydrogen bond containing amide group, with good mechanical properties and improved water vapor barrier

Feng

Almalki

et al. 2022

Adv Compos Hybrid Mater

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Hydrogen-bonded PBSeT copolyesters are synthesized by introducing a polar amide unit into the molecular chain by adding decyldiamine. Two-step esteri cation and one-step polycondensation melt polymerization were adopted. ATR-FTIR and 1HNMR demonstrated the successful introduction of the amide unit. The effect of adding an amide unit on many properties was also discussed. Due to the formation of hydrogen bond, the force of the molecular chain is increased, the crystallinity is increased by 5.91%, and the yield strength and tear strength are increased by 40.7% and 74.8%, respectively. The addition of 1,10-decyldiamine has no signi cant effect on the glass transition temperature and thermal stability of polyester. The introduction of an amide unit decreased free volume and increased combined crystallinity, which also increased the water vapor barrier. At the same time, PBSeT copolyester still maintained its biodegradability under hydrolysis and enzymatic hydrolysis. This paper discusses a synthesis method of PBSeT copolyester strengthened by a hydrogen bond. The modi ed material has higher crystallinity, better mechanical properties, and a better water vapor barrier while maintaining certain biodegradation ability. It can be used in disposable products, food packaging, and other elds.

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Repurposing Plastic Wastes in Non-conventional Engineered Wood Building Bricks for Constructional Application – A Mechanical Characterization using Experimental and Statistical Analys

Cited by 27 publications

References 0 publications

Graphene Oxide Liquid Crystals Aligned in a Confined Configuration: Implications for Optical Materials

Graphene Oxide Liquid Crystals Aligned in a Confined Configuration: Implications for Optical Materials

Current Prospects for Plastic Waste Treatment

Synthesis and characterization of poly(butanediol sebacate-butanediol) terephthalate (PBSeT) reinforced by hydrogen bond containing amide group, with good mechanical properties and improved water vapor barrier

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