Preparation method of antimicrobial hydrogel applied to surface of touch screen

Abstract

The invention discloses a preparation method of antimicrobial hydrogel applied to the surface of a touch screen. The antimicrobial hydrogel is an antibacterial material which uses a p-type semiconductor material with relatively small forbidden bandwidth, namely nanometer cuprous oxide, as a matrix, and is prepared by using hydrogel as a main dispersant and adding the nanometer cuprous oxide into the hydrogel through certain steps. The antimicrobial hydrogel in a semi-solid form uniformly coats the surface of the touch screen (the semi-solid form can effectively reduce security risks caused by liquid entry), the antimicrobial hydrogel is naturally aired in air to form a film, and the film covers the surface of the touch screen. By virtue of background light, the antimicrobial hydrogel can massively eliminate bacteria on the surface of the screen (experiments show that the antibacterial rate reaches 100%) to achieve efficient sterilizing performance, and can filter out most of blue light to play a role in protecting retinae. The preparation method is different from the conventional UV sterilization, and is more convenient, more healthy and more environment-friendly.

Description

technical field [0001] The invention relates to the field of multifunctional nanomaterials, in particular to a method for preparing an antibacterial hydrogel used on the surface of a touch screen. Background technique [0002] Electronic products are developing rapidly in today's society. As a product of the new era, touch screens can be seen everywhere in life. Applications include mobile phones, computers, navigators and other related high-precision instruments. At the same time as this rapid development, there are two outstanding problems in the use of touch screens: 1. There are a lot of bacteria on the surface of the touch screen; 2. The blue light emitted by the screen is harmful to the eyes. [0003] Bacteria are generally harmful to humans. Some bacteria become pathogens that can cause diseases such as pneumonia, colds, cholera, typhoid, syphilis, and tuberculosis. Food contamination bacteria not only cause spoilage, but more importantly, can cause food poisoning. ...

AI Technical Summary

Problems solved by technology

At the same time as this rapid development, there are two outstanding problems in the use of touch screens: 1. There are a lot of bacteria on the surface of the touch screen; 2. The blue light emitted by the screen is harmful to the eyes

However, both alcohol and ultraviolet light have their inherent disadvantages. Firstly, as a flammable liquid with a low boiling point, alcohol is likely to become a safety hazard in life. Secondly, alcohol may also infiltrate into the circuit components of the touch screen during use. If such a high-precision instrument Irreversible damage if not waterproof

The problem of blue light damage to eyesight has not been paid attention to until the past two years. At present, the commonly used solution is to paste anti-blue light film on mobile phones. Although it can play a certain role, it will also affect the use. Large screens generally do not do too much processing, and simply filtering blue light is undoubtedly a waste of energy

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