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Surface modification of polyacrylonitrile staple-fibres via alkaline hydrolysis

机译：聚丙烯腈短纤维经碱水解的表面改性

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摘要

The study of the chemistry of alkaline hydrolysis on polyacrylonitrile staple fibres is an interesting task in terms of the reaction mechanism as well as its commercial implementation in the man-made fibre production as superabsorbent fibres. Studies are performed to analyse the kinetics of alkaline hydrolysis on polyacrylonitrile staple fibres, quantification of the developed functional groups viz. -COONa, -CONH_2 etc. as well as change in the nitrile content by means of surface spectra with the help of Micro-A TR accessory carried out to optimise the reaction conditions suitable for the surface modification of the fibre. Dyeing of the samples with Methylene Blue was carried out to calculate the amount of -COOH groups formed during the reaction with alkali. Microscopic investigation was carried out to investigate the physical structure of the hydrolysed product. The present study gives the optimum reaction conditions suitable for the surface modification of PAN staple fibres and maintaining the bulk properties of the fibres.
机译：在聚丙烯腈短纤维的碱性水解化学研究方面，从反应机理以及将其作为人造纤维生产超吸收性纤维的商业应用来看，这是一项有趣的任务。进行研究以分析聚丙烯腈短纤维上碱性水解的动力学，定量开发的官能团，即。 -COONa，-CONH_2等，并借助Micro-A TR附件借助表面光谱改变腈含量，以优化适合于纤维表面改性的反应条件。用亚甲基蓝对样品进行染色以计算在与碱反应期间形成的-COOH基团的量。进行了显微镜研究以研究水解产物的物理结构。本研究给出了适合于PAN短纤维表面改性并保持纤维的膨松性能的最佳反应条件。

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