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A concise overview of the aramid fiber spinning process

Yogesh Hande

The Bombay Textile Research Association

BTRA Scan-Vol. LIII No. 2, April,2024, Page no. 9 to 16
Keywords
Lyotropic liquid crystal, Spinning, Polymerisation

Abstract

The article covers Aramid fibers (AFs), renowned for their exceptional strength, heat resistance, and versatility, which have a rich history that encompasses ground-breaking discoveries and technological advancements. The inception of lyotropic liquid crystals was a pivotal moment, providing a foundation for the development of lyotropic solutions specific to AFs. These solutions, derived by dissolving high molecular weight aramids in suitable solvents, play a crucial role in the synthesis of these advanced fibers. Two prominent synthesis methods involve the solution polymerization of aromatic diamines and aromatic dicarboxylic acid chlorides. AFs, post-synthesis, undergo various spinning techniques, including Dry spinning, Wet spinning, Dry-jet wet spinning and Electro spinning, each contributing distinct characteristics to the final product. The applications of AFs span a broad spectrum, encompassing protective clothing, industrial materials, aerospace components, and military applications. As we delve into the intricacies of AFs spinning, it is imperative to consider the future outlook, anticipating further advancements in synthesis methods, spinning techniques, and innovative applications that will contribute to the continued evolution of this remarkable class of fibers in materials science.

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