Tensile properties of urea treated rice straw reinforced recycled polyethylene terephthalate composite materials

Thabah, Wanrahbok; Singh, Ashwani Kumar; Bedi, Raman

doi:10.1016/j.matpr.2021.11.464

Cited by 11 publications

(3 citation statements)

References 38 publications

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“…This leads to the expectation of a strong fiber-matrix interface, which would indicate that the observed differences in tensile strength are due to the intrinsic strength of the fibers [33]. If the values obtained are compared with published results for similar fibers such as wheat straw, rice straw, and other agricultural residues without coupling agents, it can be observed that superior results have been obtained in terms of increases in tensile strength, which confirms the strong interface obtained [34][35][36]. In this sense, if the results obtained are compared with those presented for sugarcane bagasse fibers with a coupling agent, it can be observed that the maximum increase obtained is 61.78%, lower than that of rapeseed fibers [37].…”

Section: Composite Macromechanical Analysissupporting

confidence: 60%

Approaching a Zero-Waste Strategy in Rapeseed (Brassica napus) Exploitation: Sustainably Approaching Bio-Based Polyethylene Composites

et al. 2022

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The current need to develop more sustainable processes and products requires the study of new materials. In the field of plastic materials, the need to develop 100% bio-based materials that meet market requirements is evident. In this sense, the present work aims to explore the potential of rapeseed waste as a reinforcement of a bio-based plastic matrix that does not generate new sub-waste. For this purpose, three types of processing of rapeseed residues have been studied: (i) milling; (ii) mechanical process; (iii) thermomechanical process. In addition, the reinforcing capacity of these materials, together with the need for an optimized coupling agent at 6 wt.%, has been verified. The micromechanics of the materials have been evaluated to determine the development of these fibers in the composite material. The results obtained show remarkable increases in mechanical properties, reaching more than 141% in tensile strength and 128% in flexural strength. There is a remarkable difference in the impact behavior between the materials with milled rapeseed and the fibers obtained by mechanical or thermomechanical processes. It was found that by sustainable design it is possible to achieve a 76.2% reduction in the amount of plastic used to manufacture material with the same mechanical properties.

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Section: Composite Macromechanical Analysissupporting

confidence: 60%

Approaching a Zero-Waste Strategy in Rapeseed (Brassica napus) Exploitation: Sustainably Approaching Bio-Based Polyethylene Composites

et al. 2022

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“…According to literature, rice straw may be used efficiently for composite preparation [105][106][107][108][109][110][111]. Furthermore, rice straw microfibrils at 5% increase the characteristics of rice straw polypropylene composites [107].…”

Section: Composition Of Rice Huskmentioning

confidence: 99%

Value Chain Analysis of Rice Industry by Products in a Circular Economy Context: A Review

Illankoon

Milanese

Collivignarelli

et al. 2023

Waste

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The quantity of organic waste generated by agricultural sectors is continually increasing due to population growth and rising food demand. Rice is the primary consumable food in Asia. However, many stakeholders follow a linear economic model such as the “take–make–waste” concept. This linear model leads to a substantial environmental burden and the destruction of valuable resources without gaining their actual value. Because these by-products can be converted into energy generating and storage materials, and into bio-based products by cascading transformation processes within the circular economy concept, waste should be considered a central material. This review examines the composition of rice straw, bran, and husks, and the procedures involved in manufacturing value-added goods, from these wastes. Moreover, starting with an extensive literature analysis on the rice value chains, this work systematizes and displays a variety of strategies for using these by-products. The future development of agricultural waste management is desirable to capitalize on the multi-functional product by circulating all the by-products in the economy. According to the analysis of relevant research, rice straw has considerable potential as a renewable energy source. However, there is a significant research gap in using rice bran as an energy storage material. Additionally, modified rice husk has increased its promise as an adsorbent in the bio-based water treatment industry. Furthermore, the case study of Sri Lanka revealed that developing countries have a huge potential to value these by-products in various sectors of the economy. Finally, this paper provides suggestions for researchers and policymakers to improve the current agriculture waste management system with the best option and integrated approach for economic sustainability and eco- and environmental solution, considering some case studies to develop sustainable waste management processes.

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“…Polyethylene terephthalate (PET) is a semicrystalline thermoplastic polymer which is translucent in nature, possesses good mechanical properties, chemical resistance and mainly used to make soft drink bottles and packaged water bottles [1][2][3][4]. Demand and utilization of PET has increased owing to an increase in the worldwide population and is expected to increase approximately at a rate of 7% for the period of 2017-2025 [5].…”

Section: Introductionmentioning

confidence: 99%

Fatigue life analysis and damage evaluation in glass fiber reinforced composite materials based on recycled polyethylene terephthalate

Bedi¹,

Singh²

2023

Phys. Scr.

Self Cite

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Viability of recycling polyethylene terephthalate (PET) can be enhanced by increasing its usage as a matrix material in manufacturing of composite materials. Structural applications of composite materials almost always involve fatigue loading and evaluation of fatigue behaviour is essential to explore the full potential of composite materials based on recycled PET. With an aim to increase the acceptability of recycled PET based resins, fatigue performance of glass fiber reinforced composite materials based on unsaturated polyester resin derived from recycled PET (rPET-UPR) has been evaluated in the present research. Glass fiber composites laminates of stacking sequence [0/(±45)2/0]T have been fabricated using vacuum infusion process. Fatigue tests were performed at the stress ratio of 0.1, where the stress level varied from 40-80% of the ultimate tensile strength (UTS). The results of fatigue tests show that the fatigue lives of composites based on rPET-UPR were lower as compared to virgin polyester matrix composites. However, Statistical analysis of the fatigue life data using two parameter Weibull distribution, established that there is no deleterious effect on the scatter observed in fatigue lives of these composites, as compared to composites based on virgin polyester resin. Due to higher degradation of rPET-UPR matrix as well as weak interfacial properties, 13% higher self generated temperature was observed during fatigue loading in comparison to virgin resin based composite materials. A three phase stiffness degradation curve has been observed for these composite materials indicating stiffness loss in the range of 20-35 % till the time of failure, which correlates well with the experimental damage observations. A nonuniform and rapid damage growth was observed at high-stress levels, whereas a more uniform damage zone was observed at the low-stress levels.

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Tensile properties of urea treated rice straw reinforced recycled polyethylene terephthalate composite materials

Cited by 11 publications

References 38 publications

Approaching a Zero-Waste Strategy in Rapeseed (Brassica napus) Exploitation: Sustainably Approaching Bio-Based Polyethylene Composites

Approaching a Zero-Waste Strategy in Rapeseed (Brassica napus) Exploitation: Sustainably Approaching Bio-Based Polyethylene Composites

Value Chain Analysis of Rice Industry by Products in a Circular Economy Context: A Review

Fatigue life analysis and damage evaluation in glass fiber reinforced composite materials based on recycled polyethylene terephthalate

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