idw – Informationsdienst Wissenschaft

Nachrichten, Termine, Experten

Grafik: idw-Logo
Science Video Project
idw-Abo

idw-News App:

AppStore

Google Play Store



Instance:
Share on: 
06/01/2023 11:06

CircEl-Paper: Recyclable paper-based electronics

Dipl.-Geophys. Marie-Luise Righi PR und Kommunikation
Fraunhofer-Institut für Silicatforschung ISC

    Billions of tons of electronic waste are produced in the EU every year. With a novel approach, the new EU project "CircEl-Paper" could sustainably improve the recycling process for electronics in the future.

    Electronics that can be disposed of and even recycled using conventional paper recycling process? That is the goal of the EU project CircEl-Paper. For this purpose, the project is looking at the development of functional printed circuit boards based on paper technology. Such an approach, which enables a sustainable circular economy for electronics as well, has raised interest of researchers since a few years and has not yet been investigated for complex devices and within a large complementary consortium. If the entire life cycle of a printed circuit board is taken into account, the impact of the project can be enormous.

    Recycling in general is already well established in the EU, especially in the field of paper recycling. However, there are still significant deficits when recycling e-waste: of 12 million tons of e-waste produced in Europe, only 42 percent has been properly collected and recycled, as reported, among others, in the reports of the World Economic Forum. Globally, 53 million tons were produced 2019, only about 17 percent of waste was verifiably collected and properly disposed of, according to the Global E-Waste Monitor 2020 [1]. And even when e-waste ends up in the recycling process, there is another issue: electronic printed circuit boards (PCBs) are mounted in almost all electronic products, containing sensors, chips, capacitors, resistors and more. These PCBs are made of a glass fiber reinforced polymer, copper-based circuitry, and various metals. Due to the broad variety of different materials in printed circuit boards, full recycling is very complex and expensive.

    The recycling process best accepted by consumers is that of waste paper. It is also one of the most proven recycling processes. Therefore, to increase the recycling rate of electronic components, the paper recycling route is the most promising. The aim of the CircEl-Paper project is to find out whether and how this is possible without sacrificing the performance of the electronics.

    An important step on the way to recyclable printed circuit boards is the replacement of the standard FR4 glass-fiber-polymer composite material with a paper substrate. For the ecological footprint, this would mean a reduction of up to 60 percent in CO₂ equivalents. In an EU project completed two years ago, papers, printing processes and various functional materials were identified that were suitable for the production of printed sensor technology on paper substrates. CircEl-Paper goes a major step further here, both in terms of possible applications and in terms of examining the process as a whole. In order to transfer printed circuit board technology to the circular economy, each process step is examined. In addition, alternative approaches are being developed to increase the proportion of materials that are recyclable, bio-based, based on secondary raw materials, or at least harmless to the environment.

    The CircEl-Paper project team will demonstrate the diverse areas in which paper-based PCB technology can be applied with three use cases from the fields of medicine, logistics and consumer electronics: A medical sensor for measuring glucose levels on the skin, packaging with an integrated time-temperature indicator (TTI) or greeting cards that play music exemplify the technology's performance and adaptability.

    The international consortium that has been working on the project since September 2022 covers the entire value chain. A number of well-known research institutions, academic partners and production companies are involved: the Fraunhofer Institute for Silicate Research as project coordinator, Joanneum Research GmbH in Austria, the RISE Research Institute of Sweden, the Italo-French paper manufacturer Fedrigoni, the French ink manufacturer VFP ink Technologies, the printed circuit board manufacturer Malmö Mönsterkort in Sweden, and Grenoble INP, Graduate schools of Engineering and Management, University Grenoble Alpes.

    Project information

    The CircEl-Paper project – Circular Economy Applied To Electronic Printed Circuit Boards Based On Paper – is funded by the European Union.

    Grant No: 101070114
    Topic ID: HORIZON-CL4-2021-DIGITAL-EMERGING-01-31
    Contribution to the development of new concepts, designs and technologies in electronics to support and enable circular economy and sustainability.

    More information on https://circel-paper.eu

    [1] Global e-waste monitoring 2020, https://www.itu.int/en/ITU-D/Environment/Pages/Spotlight/Global-Ewaste-Monitor-2...
    (website ITU, International Telecommunication Union (ITU), United Nations' specialized agency for information and communication technologies)


    Contact for scientific information:

    Gerhard Domann (project coordinator), Fraunhofer Institute for Silicate Research, Germany,
    gerhard.domann@isc.fraunhofer.de


    More information:

    https://circel-paper.eu - the project website with further information


    Images

    R2R printed electronic components on paper
    R2R printed electronic components on paper
    K. Selsam
    Fraunhofer ISC

    Paper-based printed electronics - easy to recycle, resource-saving
    Paper-based printed electronics - easy to recycle, resource-saving
    Antoine Julien
    Grenoble INP - Pagora


    Attachment
    attachment icon The press release as pdf

    Criteria of this press release:
    Business and commerce, Journalists, Scientists and scholars
    Chemistry, Economics / business administration, Electrical engineering, Environment / ecology, Materials sciences
    transregional, national
    Miscellaneous scientific news/publications, Research projects
    English


     

    R2R printed electronic components on paper


    For download

    x

    Paper-based printed electronics - easy to recycle, resource-saving


    For download

    x

    Help

    Search / advanced search of the idw archives
    Combination of search terms

    You can combine search terms with and, or and/or not, e.g. Philo not logy.

    Brackets

    You can use brackets to separate combinations from each other, e.g. (Philo not logy) or (Psycho and logy).

    Phrases

    Coherent groups of words will be located as complete phrases if you put them into quotation marks, e.g. “Federal Republic of Germany”.

    Selection criteria

    You can also use the advanced search without entering search terms. It will then follow the criteria you have selected (e.g. country or subject area).

    If you have not selected any criteria in a given category, the entire category will be searched (e.g. all subject areas or all countries).