精品文档---下载后可任意编辑β-甲壳素的提取与溶解性能测试及纤维棉的纺制的开题报告摘要：本文讨论了 β-甲壳素的提取与溶解性能测试以及纤维棉的纺制工艺，旨在为纺织工业开发新型功能性纤维材料提供实验基础。首先，实行酸/碱法提取 β-甲壳素，并对不同工艺条件下的提取率进行了讨论。结果表明，较低浓度的盐酸和氢氧化钠、较短的提取时间和较高的提取温度有利于提高 β-甲壳素的提取率。其中，以 0.5 M 的盐酸和 1 M 的氢氧化钠为溶液，在 85 ℃下提取 2 h 可以获得最高的 β-甲壳素提取率。其次，通过实验测定 β-甲壳素的溶解性能，讨论了它在不同溶剂系统下的溶解度规律。结果表明，乙醇/水混合物是最适宜的溶剂系统，且β-甲壳素的溶解度在该体系中受温度、浓度和 PH 值的影响较大。此外，随着 β-甲壳素浓度的增加，其在此溶剂系统中的聚集现象也明显增强。最后，以 β-甲壳素为功能性助剂，制备了含有 10%β-甲壳素的纤维棉，在常规纺织工艺下进行了纺制实验。结果表明，与普通棉纱相比，β-甲壳素纤维棉具有较好的拉伸和断裂强度，表现出一定的增强效果。此外，电镜观察和傅里叶红外光谱分析表明，β-甲壳素已经成功地添加到了纤维棉中。综上所述，本文系统地讨论了 β-甲壳素的提取与溶解性能测试以及应用于纤维棉的纺制工艺，为纺织工业的生产和进展提供了一定的参考价值。关键词：β-甲壳素；提取率；溶解度；纤维棉；纺制工艺Abstract:This paper studied the extraction and solubility testing of β-chitin and the spinning process of fiber cotton, aiming to provide experimental basis for the development of new functional fiber materials in the textile industry.Firstly, acid/base method was adopted to extract β-chitin, and the extraction rate under different process conditions was studied. The results showed that lower concentration of hydrochloric acid and sodium hydroxide, shorter extraction time and higher extraction temperature were beneficial to 精品文档---下载后可任意编辑improve the extraction rate of β-chitin. Among them, the highest extraction rate of β-chitin could be obtained by using 0.5 M hydrochloric acid and 1 M sodium...
