First efforts on recovery of thermoplastic composites at low temperatures by power ultrasonics

Ragupathi, Balaji; Bacher, Matthias Florian; Balle, Frank

doi:10.1016/j.clema.2023.100186

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…It is worth noting that recently [81], power ultrasonics have been used for the interlaminar pre-cracking of thermoplastic CF composites, in order to separate the layers and enable their reuse. The ultrasonic assisted pre-cracking proved to be a fast and robust method to initiate controlled artificial pre-cracks in thermoplastic composite materials, avoiding any fibre damage that could affect the mechanical properties.…”

Section: Ultrasonic Recyclingmentioning

confidence: 99%

Recent Trends of Recycling and Upcycling of Polymers and Composites: A Comprehensive Review

Podara,

Termine,

Modestou

et al. 2024

Recycling

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This review article gathers the most recent recycling technologies for thermoset and thermoplastic polymers. Results about existing experimental procedures and their effectiveness are presented. For thermoset polymers, the review focuses mainly on fibre-reinforced polymer composites, with an emphasis on epoxy-based systems and carbon/glass fibres as reinforcement, due to the environmental concerns of their end-of-life management. Thermal processes (fluidised bed, pyrolysis) and chemical processes (different types of solvolysis) are discussed. The most recent combined processes (microwave, steam, and ultrasonic assisted techniques) and extraordinary recycling attempts (electrochemical, biological, and with ionic liquids) are analysed. Mechanical recycling that leads to the downgrading of materials is excluded. Insights are also given for the upcycling methodologies that have been implemented until now for the reuse of fibres. As for thermoplastic polymers, the most state-of-the-art recycling approach for the most common polymer matrices is presented, together with the appropriate additivation for matrix upcycling. Mechanical, chemical, and enzymatic recycling processes are described, among others. The use of fibre-reinforced thermoplastic composites is quite new, and thus, the most recent achievements are presented. With all of the above information, this extensive review can serve as a guide for educational purposes, targeting students and technicians in polymers recycling.

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Section: Ultrasonic Recyclingmentioning

confidence: 99%

Recent Trends of Recycling and Upcycling of Polymers and Composites: A Comprehensive Review

Podara,

Termine,

Modestou

et al. 2024

Recycling

View full text Add to dashboard Cite

show abstract

Characterization of glass-fiber reinforced thermoplastic composite after ultrasonic reconsolidation

Ragupathi,

Balle

2024

European Journal of Materials

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Advances in ultrasonic welding of lightweight alloys: A review

Abbas,

Zhao,

Deng

et al. 2023

High Temperature Materials and Processes

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The lightweight alloy sheet materials have been widely used in industries such as automobiles, aviation, and aerospace. However, there are huge challenges in the structural joining process. Likewise, industries are probing new technologies and are rapidly adapting to more complex light alloy materials. The ultrasonic metal welding is a reliable solid-phase joining technology, which has incomparable development prospects in the high-strength joining of lightweight alloy sheet materials. This article summarizes the research progress of ultrasonic welding of aluminum alloy, magnesium alloy, and titanium alloy thin plates in recent years. The key features of this review article are the ultrasonic welding process, advantages, applications, and limitations. It introduces the welding process parameters to explore the breakthroughs for straightforward direction. Furthermore, to strengthen the phenomena, the current state of the ultrasonic welding of lightweight alloys and their future perspectives are also reflected.

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First efforts on recovery of thermoplastic composites at low temperatures by power ultrasonics

Cited by 3 publications

References 13 publications

Recent Trends of Recycling and Upcycling of Polymers and Composites: A Comprehensive Review

Recent Trends of Recycling and Upcycling of Polymers and Composites: A Comprehensive Review

Characterization of glass-fiber reinforced thermoplastic composite after ultrasonic reconsolidation

Advances in ultrasonic welding of lightweight alloys: A review

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