Method for preparing long-acting antibacterial household product from haloamine-aminated composite modified cotton fibers

Abstract

The invention discloses a method for preparing a long-acting antibacterial household product from haloamine-aminated composite modified cotton fibers. A magnetic cotton fiber-polyaniline composite material, water-soluble haloamine precursor-grafted chlorinated cotton fibers and nano-silver in-situ formed finished aminated cotton fibers are blended to obtain the household product. Pretreated cottonfibers are grafted with a water-soluble haloamine precursor by an impregnating, drying and curing process, the cotton fibers with an antibacterial effect is prepared by soaking chlorination using a sodium hypochlorite bleaching solution, and the obtained cotton fibers also have good washing durability and stability. The aminated modified cotton fibers are prepared by oxidatively activating cottonfibers and grafting the cotton fibers with an amino-terminated hyperbranched polymer, and the complexation and reduction effects of rich amino groups in the modified cotton fibers on silver ions areused to achieve in situ controlled generation of nano-silver, so high-efficiency antibacterial finishing of a cotton fabric is realized; and the nano-silver in situ generated by the aminated cotton fibers has a small particle size, and the nano-silver has high washing fastness after the aminated cotton fiber finishing.

Description

technical field [0001] The invention belongs to the technical field of household articles, and in particular relates to a method for making long-acting antibacterial household articles by using haloamine-amination compound modified cotton fibers. Background technique [0002] Cotton fiber is an important industrial raw material. As the purest cellulose in nature, it is widely used in light industry, chemistry, medicine, national defense and other industrial fields. However, the dense crystalline structure and high degree of polymerization of cotton fiber lead to high crystallinity, which limits its effective utilization. Therefore, it is particularly important to reduce the crystallinity of cotton fiber and improve its reactivity. Sodium hydroxide-urea water system is a low-cost, non-toxic, non-polluting, green and environmentally friendly non-derivatized cellulose solvent, which has a strong ability to dissolve cellulose. [0003] Nano-silver is an inorganic nano-material...

AI Technical Summary

Problems solved by technology

In these methods, simple physical adsorption is often not fast enough, and the use of cross-linking agents or polymer coatings to increase its fastness will cause the original excellent hand feel of the fabric, the affinity to human skin, etc. to be lost, and these chemical reagents The use of non-woven fabrics will not only pollute the environment, but also cause potential harm to the human body when it is finished on the fabric.

At the same time, nano-silver tends to agglomerate during storage and finishing applications.