Abstract

β-cyclodextrin (β-CD) was oxidized by sodium periodate to yield a mixture of dialdehyde oligosaccharides. The periodate-oxidized β-CD (O-β-CD) together with chitosan (CTS) was firstly used to finish poly(ethylene terephthalate) (PET) fabrics by immersion-padding method, in which O-β-CD acted as a hydrophilic finishing agent plus a cross-linker. The processes including the periodate oxidization of β-CD and the CTS/O-β-CD hydrophilic finishing of PET fabrics were eco-friendly. The results from the hydroxylamine hydrochloride titration showed that the aldehyde content in O-β-CD was 3.0 mmol/g. With increasing the CTS/O-β-CD mass ratio, the finished fabric had better hydrophilic properties. When the CTS/O-β-CD mass ratio was 1:1, the moisture regain and water drops wetting time of the finished fabric reached 1.85 % and 5.06 s, respectively. They became 1.50 % and 5.70 s, respectively after 25 times of laundering cycle. The occurrence of cross-linking between O-β-CD and CTS was confirmed by the gel test and FT-IR characterization. The cross-linking network deposited on the fiber surface brought on excellent wash resistance of the CTS/O-β-CD finished PET fabrics.

中文翻译：

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壳聚糖和高碘酸盐氧化的β-环糊精对PET织物的亲水性整理以提高耐洗性

摘要

β-环糊精（β-CD）被高碘酸钠氧化，生成二醛寡糖的混合物。高碘酸盐氧化的β-CD（O-β-CD）与壳聚糖（CTS）一起首先通过浸轧法整理聚对苯二甲酸乙二醇酯（PET）织物，其中O-β-CD作为亲水整理剂加交联剂。包括β-CD的高碘酸盐氧化和PET织物的CTS /O-β-CD亲水整理在内的过程都是环保的。盐酸羟胺滴定的结果表明，O-β-CD中的醛含量为3.0mmol / g。随着CTS /O-β-CD质量比的增加，成品织物具有更好的亲水性。当CTS /O-β-CD质量比为1：1时，成品织物的回潮率和水滴润湿时间分别达到1.85％和5.06s。经过25次洗涤周期后，它们分别变为1.50％和5.70 s。O-β-CD和CTS之间发生了交联，这已通过凝胶测试和FT-IR表征得到了证实。沉积在纤维表面的交联网络使CTS /O-β-CD成品PET织物具有出色的耐洗性。