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Issue 53, 2015
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Polyacrylonitrile/lignin sulfonate blend fiber for low-cost carbon fiber

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Polyacrylonitrile/lignin sulfonate (PAN/LS) blend fibers were spun via a wet spinning process. The fiber structure, mechanical properties and thermal stability of the precursor fibers were studied by FT-IR, SEM, tensile tester, and TG-DSC. Results indicated that there was no chemical crosslinking between PAN and LS during the process of wet spinning. PAN and LS had good compatibility in the blend fibers. LS could weaken the skin of the blend fibers and reduce the fiber structure defects. The increase of dope concentration could improve the fiber structure and mechanical properties. LS blending with PAN could reduce fiber weight loss in the thermal stabilization process, and most importantly the precursor fibers could be stabilized rapidly without fiber fusion. Through polymer blending and wet spinning, this study provided a promising way to prepare a precursor fiber for carbon fiber.

Graphical abstract: Polyacrylonitrile/lignin sulfonate blend fiber for low-cost carbon fiber

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Publication details

The article was received on 21 Jan 2015, accepted on 16 Apr 2015 and first published on 16 Apr 2015

Article type: Paper
DOI: 10.1039/C5RA01241D
Citation: RSC Adv., 2015,5, 42259-42265

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    Polyacrylonitrile/lignin sulfonate blend fiber for low-cost carbon fiber

    X. Dong, C. Lu, P. Zhou, S. Zhang, L. Wang and D. Li, RSC Adv., 2015, 5, 42259
    DOI: 10.1039/C5RA01241D

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