Arranging method for loading nanometer titanium dioxide on textiles

Abstract

The invention discloses an arranging method for loading anatase type nanometer titanium dioxide on textiles. The arranged textiles have a photocatalytic self-cleaning function and an ultraviolet resisting function. The method specifically includes the following process steps and conditions of firstly, conducting textile pretreatment, wherein the textiles are boiled to remove impurities and auxiliaries and then sufficiently dried for standby application; secondly, preparing working liquid, wherein titanate type precursors and alcohol solvent are rapidly stirred and evenly mixed to prepare the working liquid; thirdly, soaking the dry textiles obtained in the first step in the working liquid obtained in the second step, or spraying the working liquid obtained in the second step on the single faces or double faces of the dry textiles obtained in the first step; fourthly, putting the textiles in the third step in a water bath to be subjected to water heating or steaming, and taking out the textiles to be washed and dried. The arranging method is simple in process, little in medicine consumption, and capable of saving time and energy, the arranged textiles have photocatalytic performance and excellent ultraviolet resistance under ultraviolet and visible light, and loaded nanometer titanium dioxide and textiles have good combining firmness.

Description

technical field [0001] The invention belongs to the technical field of textile functional finishing, and specifically relates to a finishing method for processing functional textiles with photocatalytic self-cleaning, anti-ultraviolet and other properties. Background technique [0002] Nano-TiO 2 It is an N-type semiconductor oxide with photocatalytic properties. It is favored because of its special optical and electronic properties, good chemical stability, non-toxicity and low cost. It is not only used for organic pollutants in gas phase and aqueous solution It is also an ideal material for the preparation of antibacterial and anti-ultraviolet textiles in the textile field. [0003] TiO is currently used in the textile field 2 The application of photocatalytic properties is mainly to use it as a nano-powder photocatalyst, but nano-TiO 2 The powder has problems such as easy agglomeration, uneven dispersion on the surface of the fabric, and poor bonding. At the same time,...

AI Technical Summary

Problems solved by technology

[0003] TiO is currently used in the textile field 2 The application of photocatalytic properties is mainly to use it as a nano-powder photocatalyst, but nano-TiO 2 The powder has problems such as easy agglomeration, uneven dispersion on the surface of the fabric, and poor bonding. At the same time, high temperature (above 250°C) calcination is required to obtain anatase TiO 2 , this method is costly and consumes a lot of energy; there are many methods of fabric finishing using sol-gel, but generally hydrosol is used, that is, titanate or salt compounds are hydrolyzed in a certain acid or alkaline medium After the sol is formed, it is arranged on the fabric. The sol must be prepared in advance and is not easy to store

It is also reported in the literature that in a water bath, by adding TiO 2 Precursor, hydrolyzed TiO under ultrasonic normal temperature hydrothermal conditions 2 Loaded on textiles and transformed into anatase nano-TiO 2 , so that the fabric has photocatalytic and anti-ultraviolet functions, but it takes a long time, TiO 2 low utilization

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