Synthesis of Recycled Poly(ethylene terephthalate)/Polyacrylonitrile/Styrene Composite Nanofibers by Electrospinning and Their Mechanical Properties Evaluation

Chinchillas-Chinchillas, Manuel J.; Orozco-Carmona, Víctor M.; Alvarado-Beltrán, Clemente G.; Sánchez, Jorge; Sepúlveda-Guzmán, S.; Jasso-Ramos, Luis E.

doi:10.1007/s10924-019-01379-1

Cited by 31 publications

(16 citation statements)

References 59 publications

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“…The diameters obtained were from 600 nm to 1.3 µm, presenting an average diameter of 1.024 µm (Figure 2d). Recent research has reported PAN microfibers with 1 µm diameter, using the same parameters [58]. Microfibers obtained by electrospinning are separated from each other, but continuous, i.e., it is not possible to control the length after the electrospinning process.…”

Section: Resultsmentioning

confidence: 99%

Properties of Mortar with Recycled Aggregates, and Polyacrylonitrile Microfibers Synthesized by Electrospinning

Chinchillas-Chinchillas

Pellegrini-Cervantes

Castro-Beltrán

et al. 2019

Materials

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Currently it is necessary to find alternatives towards a sustainable construction, in order to optimize the management of natural resources. Thus, using recycled fine aggregate (RFA) is a viable recycling option for the production of new cementitious materials. In addition, the use of polymeric microfibers would cause an increase in the properties of these materials. In this work, mortars were studied with 25% of RFA and an addition of polyacrylonitrile PAN microfibers of 0.05% in cement weight. The microfibers were obtained by the electrospinning method, which had an average diameter of 1.024 µm and were separated by means of a homogenizer to be added to the mortar. Cementing materials under study were evaluated for compressive strength, flexural strength, total porosity, effective porosity and capillary absorption, resistance to water penetration, sorptivity and carbonation. The results showed that using 25% of RFA causes decreases mechanical properties and durability, but adding PAN microfibers in 0.05% caused an increase of 2.9% and 30.8% of compressive strength and flexural strength respectively (with respect to the reference sample); a decrease in total porosity of 5.8% and effective porosity of 7.4%; and significant decreases in capillary absorption (approximately 23.3%), resistance to water penetration (25%) and carbonation (14.3% after 28 days of exposure). The results showed that the use of PAN microfibers in recycled mortars allowed it to increase the mechanical properties (because they increase the tensile strength), helped to fill pores or cavities and this causes them to be mortars with greater durability. Therefore, the use of PAN microfibers as a reinforcement in recycled cementitious materials would be a viable option to increase their applications.

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Section: Resultsmentioning

confidence: 99%

Properties of Mortar with Recycled Aggregates, and Polyacrylonitrile Microfibers Synthesized by Electrospinning

Chinchillas-Chinchillas

Pellegrini-Cervantes

Castro-Beltrán

et al. 2019

Materials

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“…To endow better mechanical properties and unique properties (e.g., filtration efficiency) to the electrospun recycled PET fibers, some groups put additives into the recycled PET during electrospinning [ 100 , 101 , 102 , 103 , 104 ]. One type of additive is polymers.…”

Section: Typical Polymer Waste and Reutilization Via Electrospinningmentioning

confidence: 99%

“…One type of additive is polymers. For example, Manuel et al fabricated composite fibers consisting of recycled PET, purchased polyacrylonitrile (PAN) and styrene via electrospinning and investigated their mechanical properties [ 101 ]. The composite presents high values of hardness and elastic modulus, which are 4.5 and 7.5 times those of PAN fiber values, respectively.…”

Section: Typical Polymer Waste and Reutilization Via Electrospinningmentioning

confidence: 99%

Recycling and Reutilizing Polymer Waste via Electrospun Micro/Nanofibers: A Review

Peng

Deng

et al. 2022

Nanomaterials

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The accumulation of plastic waste resulting from the increasing demand for non-degradable plastics has led to a global environmental crisis. The severe environmental and economic drawbacks of inefficient, expensive, and impractical traditional waste disposal methods, such as landfills, incineration, plastic recycling, and energy production, limit the expansion of their applications to solving the plastic waste problem. Finding novel ways to manage the large amount of disposed plastic waste is urgent. Until now, one of the most valuable strategies for the handling of plastic waste has been to reutilize the waste as raw material for the preparation of functional and high-value products. Electrospun micro/nanofibers have drawn much attention in recent years due to their advantages of small diameter, large specific area, and excellent physicochemical features. Thus, electrospinning recycled plastic waste into micro/nanofibers creates diverse opportunities to deal with the environmental issue caused by the growing accumulation of plastic waste. This paper presents a review of recycling and reutilizing polymer waste via electrospinning. Firstly, the advantages of the electrospinning approach to recycling plastic waste are summarized. Then, the studies of electrospun recycled plastic waste are concluded. Finally, the challenges and future perspectives of electrospun recycled plastic waste are provided. In conclusion, this paper aims to provide a comprehensive overview of electrospun recycled plastic waste for researchers to develop further studies.

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“…One possible option is to synthesize a composite material of RPET with another polymer. [49] Among the wide range of available polymers, polyacrylonitrile (PAN) is a good candidate considering the following characteristics: it improves the mechanical properties, has a high melting point, it is non-toxic, has a good chemical stability and it is technically viable to produce fibers. To produce composite materials, PAN has been combined with methylammonium lead triiodide (MAPbI3), polyvinylidene fluoride (PVDF), selenium disulfide (SeS2), graphene oxide (GO), and iron oxide (FeO), among others.…”

Section: Nanotechnologymentioning

confidence: 99%

A Review Study on Advancements in the Recycling Methods of Polyethylene terephthalate

Saxena

Bharj

Pasha

2021

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Recycling polyethylene terephthalate (PET) is of pivotal importance, as the bulk of PET waste generated is rising rapidly due to the wide variety of its applications. This has given rise to growing awareness and concern for the ever-increasing environmental pollution. To manage this waste, there has been significant improvement in various methods of polymer recycling, particularly in chemical recycling methods. This review provides an in-depth analysis of PET recycling methods including primary, mechanical, chemical, and energetic recycling. It also provides a detailed view of the effect of the new advanced catalysts on the future advancements in chemical recycling especially in glycolysis to improve the process efficiency and to make it economically feasible. Further, this article presents the alternative methods like nanotechnology as well as the utilization of enzymes for overcoming limitations of the prevailing methods and highlights the efforts made in these upcoming fields for enhancing the quality of the end product obtained by recycling PET waste.

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Synthesis of Recycled Poly(ethylene terephthalate)/Polyacrylonitrile/Styrene Composite Nanofibers by Electrospinning and Their Mechanical Properties Evaluation

Cited by 31 publications

References 59 publications

Properties of Mortar with Recycled Aggregates, and Polyacrylonitrile Microfibers Synthesized by Electrospinning

Properties of Mortar with Recycled Aggregates, and Polyacrylonitrile Microfibers Synthesized by Electrospinning

Recycling and Reutilizing Polymer Waste via Electrospun Micro/Nanofibers: A Review

A Review Study on Advancements in the Recycling Methods of Polyethylene terephthalate

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