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首页> 外文期刊>The Journal of the Textile Institute. 1 >Modification of Jute Fibre by Sulphonation for Diverse Textile Use
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Modification of Jute Fibre by Sulphonation for Diverse Textile Use

机译：通过磺化改性黄麻纤维以用于多种纺织品

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Jute fibre is, by nature, hard and coarse. Treated with a sulphite of sodium in its neutral solution at about 165℃ some of its properties were found to improve as lignin undergoes sulphonation reaction. Incrustation due to lignin is loosened, dislocated and partially removed as soluble lignin sulphonates come out in solution, but a major portion of them condenses to form solid lignin sulphonates remaining insoluble in the fibre and imparting new properties to fibres. Carbohydrate materials like hemicelluloses are also removed proportionately with the soluble lignin sulphonates. The rate of delignification as well as condensation of lignin sulphonates in the fibre was found to be dependent upon the degree of sulphonation of the fibre. It is seen that the sulpho-groups increase rapidly at the beginning of the treatment. The ratios of acidic sulphur to total sulphur lie within the limit of about 0.75, which means that about 25% of the sulphur was non-acidic in the sulphonated jute fibre.
机译：黄麻纤维本质上是硬而粗的。在约165℃的中性溶液中用亚硫酸钠钠处理后，发现随着木质素的磺化反应，其某些性能得到改善。当可溶性木质素磺酸盐在溶液中出来时，由于木质素引起的结垢被疏松，脱位并被部分除去，但是它们的大部分冷凝形成固体木质素磺酸盐，这些磺酸盐仍然不溶于纤维并赋予纤维以新的性质。碳水化合物材料（如半纤维素）也与可溶性木质素磺酸盐按比例去除。发现纤维中木质素磺酸盐的脱木质素率以及缩合率取决于纤维的磺化程度。可以看出，在治疗开始时，磺基迅速增加。酸性硫与总硫之比在约0.75的范围内，这意味着在磺化黄麻纤维中约25％的硫是非酸性的。

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