氧化壳聚糖/丝胶复合物的制备及其对棉织物的功能整理

doi:10.13475/j.fzxb.20180807107

摘要/Abstract

摘要：

为开发高品质的棉制品,采用氧化壳聚糖与丝胶蛋白共价结合制备氧化壳聚糖/丝胶蛋白复合物,将其应用于棉织物的功能改性整理。研究了各因素对棉织物质量增加率的影响,得出最优工艺参数。利用红外光谱仪、扫描电子显微镜等测试手段对复合物及其整理后的棉织物进行分析与表征。结果表明:壳聚糖经高碘酸钠氧化后引入活性基团醛基,与丝胶产生席夫碱反应制成复合物整理剂,将复合物应用于棉织物的整理,可与纤维产生化学键合,并在其表面交联成膜;随着壳聚糖氧化度的增加,复合物中丝胶溶失率明显减少;复合物改性棉织物的强力和吸湿性变化不大,而折皱回复性、防紫外线性和抑菌性均明显提高;3次水洗后,棉织物的质量增加率稳定在4%左右,其耐洗性能良好。

关键词: 棉织物, 功能整理, 高碘酸钠, 氧化壳聚糖, 丝胶

Abstract:

In order to develop high quality cotton product, the oxidized chitosan/sericin composite was prepared by covalent binding of oxidized chitosan and sericin, and then applied to functional finish of cotton fabrics. The influences of various factors on the weighting percentage of cotton fabrics were analyzed and the optimized process parameters were obtained. The composite and its finished cotton fabrics were characterized by Fourier transform infrared spectroscopy, scanning electron microscope analysis. The results show that the active aldehyde group is introduced into chitosan after chitosan is oxidized with sodium periodate, subsequently the oxidized chitosan is subjected to a Schiff base reaction with sericin to prepare the composite finishing agent. When the composite is applied to the finishing of cotton fabrics, it can be chemically bonded to cotton fibers and cross-linked to form the thin film on the surface. With the increase of the oxidation degree of chitosan, the sericin loss rate of the composite decreases significantly. The breaking strength and moisture absorption of the modified cotton fabrics with oxidized chitosan/sericin composite show little change, whereas the properties of the wrinkle recovery, ultraviolet resistance and bacterial resistance of the modified fabrics are significantly improved. The weighting percentage of the cotton fabrics is stabilized at about 4% after 3 washing cycles, indicating that modified cotton fabrics have good washing fastness.

Key words: cotton fabric, functional finish, sodium periodate, oxidized chitosan, sericin

中图分类号:

TS195.5

王浩, 杜兆芳, 许云辉. 氧化壳聚糖/丝胶复合物的制备及其对棉织物的功能整理[J]. 纺织学报, 2019, 40(11): 119-124.

WANG Hao, DU Zhaofang, XU Yunhui. Preparation of oxidized chitosan/sericin composite and its functional finish on cotton fabrics[J]. Journal of Textile Research, 2019, 40(11): 119-124.

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样品	断裂强力/N	毛细效应(30 min)/cm	UPF值	折皱回复角/(°)	抑菌率/%
样品	断裂强力/N	毛细效应(30 min)/cm	UPF值	折皱回复角/(°)	金黄色葡萄球菌	大肠杆菌
原棉织物	286.3	8.53	8.83	135.4	—	—
复合物改性棉织物	269.4	9.02	21.07	189.5	96.4	95.5