Keita Sato , Taketoshi Koita , Manabu Inutsuka , Koji Yamaguchi , Masao Kimura , Chiharu Tokoro
{"title":"Disassembly of laminated CFRP using direct pulsed discharge","authors":"Keita Sato , Taketoshi Koita , Manabu Inutsuka , Koji Yamaguchi , Masao Kimura , Chiharu Tokoro","doi":"10.1016/j.compositesb.2025.112301","DOIUrl":null,"url":null,"abstract":"<div><div>To promote the sustainable use of carbon fiber-reinforced polymers (CFRPs), the efficient recovery and recycling of carbon fibers (CFs) from used CFRP products is required. In this study, a direct pulsed discharge with high voltage was applied to CFRP samples for quick, low-cost dismantling and CF separation. It was found that direct pulsed discharge results in the effective destruction of CFRP, particularly in regions where the CFs are aligned parallel to the applied current. This implies that pulsed discharge is a promising method for the coarse dismantling of laminated CFRP. High-speed video camera observations, X-ray computed tomography, and electric field simulations revealed that Joule heat generated from the large current through the CFs rapidly gasifies the surrounding resin, resulting in the destruction of the CFRP.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"297 ","pages":"Article 112301"},"PeriodicalIF":12.7000,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Part B: Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S135983682500191X","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
To promote the sustainable use of carbon fiber-reinforced polymers (CFRPs), the efficient recovery and recycling of carbon fibers (CFs) from used CFRP products is required. In this study, a direct pulsed discharge with high voltage was applied to CFRP samples for quick, low-cost dismantling and CF separation. It was found that direct pulsed discharge results in the effective destruction of CFRP, particularly in regions where the CFs are aligned parallel to the applied current. This implies that pulsed discharge is a promising method for the coarse dismantling of laminated CFRP. High-speed video camera observations, X-ray computed tomography, and electric field simulations revealed that Joule heat generated from the large current through the CFs rapidly gasifies the surrounding resin, resulting in the destruction of the CFRP.
期刊介绍:
Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development.
The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.