Abstract The manufacture of carbon fibers includes an oxidative electrochemical process that represents an untapped source of potential surface manipulation beyond simple installation of oxygen containing functional groups. In this work we show that applying an oxidative treatment, at much lower oxidative potentials (+1.75 V) compared to industry standards, can result in simultaneous surface modification and oxidation resulting in substantial increases in interfacial shear strength, up to 112%, relative to pristine carbon fibers. The optimal treatment window for this process is 10 min, offering synergistic oxidation and surface grafting interactions with epoxy resin. This treatment is easily scalable, amenable to a continuous oxidation process, and can be adapted to existing infrastructure currently used in carbon fiber manufacture.

中文翻译：

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使用 Kolbe 脱羧反应通过表面接枝碳纤维提高界面剪切强度

摘要 碳纤维的制造包括氧化电化学过程，该过程代表了潜在表面操作的未开发来源，而不仅仅是简单安装含氧官能团。在这项工作中，我们表明，与行业标准相比，以低得多的氧化电位 (+1.75 V) 进行氧化处理，可以同时进行表面改性和氧化，从而使界面剪切强度显着增加，相对于原始碳纤维。该过程的最佳处理窗口是 10 分钟，提供与环氧树脂的协同氧化和表面接枝相互作用。这种处理很容易扩展，适合连续氧化过程，并且可以适应目前用于碳纤维制造的现有基础设施。