Technology advancing polymers and polymer composites towards sustainability: A review

Ayre, David

doi:10.1016/j.cogsc.2018.06.018

Cited by 58 publications

(42 citation statements)

References 42 publications

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“…Due to an increasing number of energy-resourceful applications that use lightweight thermoset materials and restrictions on landfill solutions throughout the EU, the development of thermoset recycling strategies has accelerated in recent years. 8,22,23 Another important driver is the value of the regained products. Regarding thermosets, most attention is given to the recycling of fiber-reinforced composites, since the fibers are generally more valuable than the matrix material, especially when carbon fibers are used.…”

Section: Recycling Of Conventional Thermoset Materialsmentioning

confidence: 99%

A Review on the Potential and Limitations of Recyclable Thermosets for Structural Applications

et al. 2019

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The outstanding performance of conventional thermosets arising from their covalently cross-linked networks directly results in a limited recyclability. The available commercial or close-to-commercial techniques facing this challenge can be divided into mechanical, thermal, and chemical processing. However, these methods typically require a high energy input and do not take the recycling of the thermoset matrix itself into account. Rather, they focus on retrieving the more valuable fibers, fillers, or substrates. To increase the circularity of thermoset products, many academic studies report potential solutions which require a reduced energy input by using degradable linkages or dynamic covalent bonds. However, the majority of these studies have limited potential for industrial implementation. This review aims to bridge the gap between the industrial and academic developments by focusing on those which are most relevant from a technological, sustainable and economic point of view. An overview is given of currently used approaches for the recycling of thermoset materials, the development of novel inherently recyclable thermosets and examples of possible applications that could reach the market in the near future.

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Section: Recycling Of Conventional Thermoset Materialsmentioning

confidence: 99%

A Review on the Potential and Limitations of Recyclable Thermosets for Structural Applications

et al. 2019

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“…Generally, of more interest are the following properties: mechanical, thermal, electrical conductivity, dimension stability, water absorbability, etc. [26][27][28][29][30][31]. This work intends to critically review the mechanical requirements and suggest ways of improving the mentioned properties for structural and biomedical applications.…”

Section: Introductionmentioning

confidence: 99%

Improving the Mechanical Properties of Natural Fiber Composites for Structural and Biomedical Applications

Shesan¹,

Stephen²,

Chioma³

et al. 2019

Renewable and Sustainable Composites

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Natural fiber composites are designed for different purposes including structural and non-structural ones. These natural fiber composites vary greatly in their properties including mechanical properties. Mechanical properties which include the tensile and flexural properties are highly dependent on factors such as matrix type, filler type, processing, post processing treatment and many more, factors which are quite application specific. However, many research works develop their natural fiber composite before considering the possible applications. This chapter intends to X-ray the factors that affect the mechanical properties as it relates to structural and biomedical applications and suggest ways of improving the mechanical properties.

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“… [ 10 ] X BPA MFA in Norway. [ 11 ] X Polymer recycling technology [ 14 ] X Microwave-assisted recycling LDPE. [ 16 ] X Improving biotechnological upcycling processes.…”

Section: Resultsmentioning

confidence: 99%

Bibliographic mapping of post-consumer plastic waste based on hierarchical circular principles across the system perspective

Sitadewi

Yudoko

Okdinawati

2021

Heliyon

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The current dominating production and consumption model is based on the linear economy (LE) model, within which raw materials are extracted-processed-consumed-discarded. A circular economy (CE) constitutes a regenerative systemic approach to economic development which views waste as a valuable resource to be reprocessed back into the economy. In order to understand the circular strategy for a systemic change from an LE to a CE as a means of resolving the issue of plastic waste, this research aims to map current circular strategy trends across the system perspective contained in the literature relating to plastic CE literature. The novelty of the research lies in the mapping and review of the distribution of comprehensive circular strategies within the 9R framework across the entire system perspective (e.g. micro-meso-macro) down to its sub-levels in the literature on a plastic CE. The bibliographic mapping and systematic literature review iindicateed that the majority of the research focused on recycle (R8), followed by refuse (R0), reuse (R3), and reduce (R2). Certain circular strategies are more appropriate to handling certain plastic materials, despite CE's favoring of prevention and recycling over incineration. Recover (R9) is often used to process mixed and contaminated plastic. Recycling (R8) is the most popular circular strategy and the most applicable to plastic material with three recycle trends, namely; mechanical recycling, chemical recycling and DRAM (Distributed-Recycling-and-Additive-Manufacturing). Prolonging the product life through refurbishing (R5) is not applicable to plastic due to its material limitations. Reduce (R2) popularity as circular strategy reflects the preference to reduce consumption, either by launching campaigns to prevent waste or increasing production efficiency. Research on Rethink (R1) has largely focused on rethinking product design, consumer and organization behavior and perceptions of CE. Refuse (R0) strategy is an adoption of bio-based plastics which have a similar function to fossil-based plastics.

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Technology advancing polymers and polymer composites towards sustainability: A review

Cited by 58 publications

References 42 publications

A Review on the Potential and Limitations of Recyclable Thermosets for Structural Applications

A Review on the Potential and Limitations of Recyclable Thermosets for Structural Applications

Improving the Mechanical Properties of Natural Fiber Composites for Structural and Biomedical Applications

Bibliographic mapping of post-consumer plastic waste based on hierarchical circular principles across the system perspective

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