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公开(公告)号：US20250122648A1
公开(公告)日：2025-04-17
申请号：US18908509
申请日：2024-10-07
Inventor： Krishnan Anantha Narayana Iyer , Bharath Natarajan , Ali H. Slim
Abstract: Bicomponent carbon fibers may comprise an inner region that is at least partially surrounded by an outer sheath, each comprising at least one carbonized pitch. The inner region comprises 70 wt % or greater mesophase pitch that has been carbonized, and the outer sheath comprises up to 70 wt % mesophase pitch that has been carbonized. An amount of mesophase pitch in the outer sheath is lower than in the inner region. The bicomponent carbon fibers may be formed by extrusion of first and second pitch compositions having the requisite amounts of mesophase pitch, followed by carbonization.
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