The production of long cellulose macrofibers starting from nanofibers is still complex and expensive. This study proposes a method of manufacturing long macrofibers from plant fiber bundles by chemically extracting non-cellulosic substances but preserving the original shape of the fibers. Once the cellulosic fiber bundles are dried, the original cellulose nanofibers are bridged to neighboring nanofibers by the formation of hydrogen bonds, giving shape stability and enhanced mechanical properties. By the process, the tensile strength was increased by about 50% and the modulus doubled from the original plant fiber bundles.

中文翻译：

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从植物纤维束制造强粗纤维

从纳米纤维开始生产长纤维素粗纤维仍然复杂且昂贵。本研究提出了一种从植物纤维束中制造长粗纤维的方法，方法是化学提取非纤维素物质，但保留纤维的原始形状。一旦纤维素纤维束干燥，原始纤维素纳米纤维就会通过氢键的形成与相邻的纳米纤维桥接，从而提供形状稳定性和增强的机械性能。通过该工艺，抗拉强度提高了约50%，模量比原来的植物纤维束增加了一倍。