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Recyclable composites help drive net-zero goal
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href="https://www-ornl-gov.translate.goog/directorate/psd?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=auto">Materials</a></li> <li><a href="https://www-ornl-gov.translate.goog/directorate/estd?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=auto">Clean Energy</a></li> </ul> </div> </div> <div class="field-wrapper"> <div class="field-container"> <div class="field-elements"> <div class="field-element"> <div class="image-paragraph paragraph paragraph--type--image paragraph--view-mode--default"> <div class="image-right"> <div class="field-wrapper"> <div class="field-container"> <div class="field-element"> <article aria-label="22-g02592_tomonorisaito_cellreportspysicalsciencecoverdesign_1mu.jpg"> <div><img loading="lazy" src="/sites/default/files/styles/large/public/2022-11/22-g02592_tomonorisaito_cellreportspysicalsciencecoverdesign_1mu.jpg?itok=KeZXNhcB" width="609" height="768" alt="Researchers at Oak Ridge National Laboratory designed a recyclable carbon fiber material to promote low-carbon manufacturing. Credit: Chad Malone/ORNL, U.S. Dept. of Energy"> </div> </article> </div> </div> </div><span class="image-caption"> <div class="field-wrapper"> <div class="field-container"> <div class="field-element"> Researchers at Oak Ridge National Laboratory designed a recyclable carbon fiber material to promote low-carbon manufacturing. Credit: Chad Malone/ORNL, U.S. Dept. of Energy </div> </div> </div></span> </div> <div class="image-description"> <p>Oak Ridge National Laboratory scientists designed a recyclable polymer for carbon-fiber composites to enable circular manufacturing of parts that boost energy efficiency in automotive, wind power and aerospace applications.</p> <p>Carbon-fiber composites, or fiber-reinforced polymers, are strong, lightweight materials that can help lower fuel consumption and reduce emissions in critical areas such as transportation. However, unlike metal competitors, carbon-fiber composites are not typically recyclable, meaning wider adoption could present waste challenges.</p> <p>“Our goal is to extend the lifecycle of these materials by making reuse possible without sacrificing performance,” said ORNL’s Md Anisur Rahman.</p> <p>The team’s approach incorporates dynamic covalent bonds that are reversible, enabling both carbon fiber and polymer recycling. The new polymer <a href="https://translate.google.com/website?sl=auto&tl=en&hl=auto&u=https://www.sciencedirect.com/science/article/pii/S2666386422003307">maintained mechanical strength in six reprocessing cycles</a>, a sharp contrast to previously reported polymers.</p> <p>“ORNL’s carbon-fiber composites enable fast processing and can be repaired or reprocessed multiple times, opening pathways to circular, low-carbon manufacturing,” said ORNL’s Tomonori Saito.</p> </div> </div> </div> </div> </div> </div> <div class="media-contact-card-field"> <div class="field-wrapper"> <div class="field-container"> <div class="field-element"> <article class="contact-card node node--type-staff-profile node--view-mode-contact-card"> <div class="contact-card-inner-wrapper"> <div class="contact-card-photo"> <div class="field-wrapper"> <div class="field-container"> <div class="field-element"> <article aria-label="3d printed.jpg"> <div> <div class="field-wrapper"> <div class="field-container"> <div 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