エポキシ複合材における炭素繊維リサイクルのハイブリッド手法
A HYBRID APPROACH TO CARBON FIBER RECYCLING IN EPOXY COMPOSITES (原題)
Samet Ozyigit, Carla N. Schnell, Abdelghani Laachachi
🤖 gxceed AI 要約
日本語
熱処理と亜塩素酸ナトリウム系化学処理を組み合わせた二段階リサイクル手法で、熱硬化エポキシ複合材から炭素繊維を回収する技術を提案。VARTMで作製した積層板を最適温度で熱処理し層間剥離させ、続く酸化化学処理で残存エポキシを除去。μCTやTGAで評価し、大気圧下で参照繊維に匹敵する構造・機械特性の再生炭素繊維が得られることを実証した。
English
A two-step hybrid recycling method combining thermal treatment and sodium chlorite-based chemical processing reclaims carbon fibers from thermoset epoxy composites. VARTM-manufactured laminates were thermally delaminated at minimal temperature, then chemically treated to remove residual epoxy. μCT and TGA characterization confirmed recycled fibers with structural and mechanical properties comparable to reference fibers under atmospheric pressure.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
炭素繊維複合材のリサイクルは、自動車・航空・風力ブレード等の脱炭素型素材サプライチェーンで重要性が増す。Scope 3排出や循環経済開示に関心を持つ日本企業にとって、素材段階のGHG削減・資源循環の技術的裏付けとして参考になる。
In the global GX context
Carbon fiber composite recycling supports circular-economy and Scope 3 reduction goals in automotive, aerospace, and wind sectors. While not a disclosure paper, it offers technical grounding for embodied-carbon and circularity claims increasingly scrutinized under CSRD and ISSB reporting.
👥 読者別の含意
🔬研究者:熱処理と化学処理を組み合わせた大気圧下リサイクル条件の最適化手法として参考になる。
🏢実務担当者:複合材廃棄物の再資源化による素材調達コスト・廃棄コスト削減の選択肢として検討可能。
🏛政策担当者:炭素繊維リサイクル技術の実用化は循環経済・廃棄物政策の設計に示唆を与える。
📄 Abstract（原文）
In this study, a novel two-step recycling technique combining thermal treatment and sodium chlorite-based chemical processing is proposed to reclaim carbon fibers from thermoset epoxy composites. A composite structure was manufactured employing vacuum-assisted resin transfer molding (VARTM). Then, the manufactured laminate was subjected to thermal treatment to partially degrade its epoxy matrix, resulting in delamination of the composite structure. Thermal treatment was performed at the minimum temperature required to separate carbon fibers without completely incinerating the epoxy matrix. The effect of the thermal treatment on the composite structure was detailed by monitoring its microstructure and weight loss via microcomputed X-ray tomography (μCT) and thermogravimetric analysis (TGA) tests. In the following step, the reclaimed carbon fiber layers were treated separately with a sodium chlorite-based oxidative chemical solution to promote the removal of thermally degraded epoxy residues and obtain clean recycled carbon fibers. Comprehensive experimental studies were conducted on the thermal treatment temperature and duration, and chemical recycling duration, to determine the optimum recycling conditions. As a final step, the recycled carbon fibers were extensively characterized by comparing their structural properties with those of the reference carbon fibers to assess the efficiency of the novel hybrid recycling technique applied. The characterization test results validate that carbon fibers with comparable structural and mechanical properties can be recovered by a hybrid recycling method under atmospheric pressure.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.jcomc.2026.100808first seen 2026-09-11 05:06:18
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