Application of carbon dot @ inorganic oxide to preparation of anti-ultraviolet product

Abstract

The invention discloses application of a carbon dot @ inorganic oxide to preparation of an anti-ultraviolet product. The anti-ultraviolet product may be any one selected from a group consisting of a fiber, a cosmetic, paint, printing ink, resin and rubber. The anti-ultraviolet product prepared from the carbon dot @ inorganic oxide has the advantages of no toxicity, capacity of absorbing UVA and UVB at the same time, low cost, no proneness to decomposition, good stability, etc.

Description

technical field [0001] The present invention relates to a new application of carbon dots, specifically, the application of carbon dots as UV absorbers after compounding with inorganic oxides in the preparation of anti-ultraviolet products. Background technique [0002] UV (ultraviolet light) is a kind of light wave that humans cannot see. Its wavelength range is between 200nm and 400nm. The wavelength is between 280 and 320nm), these UV radiations cause the deterioration of industrial products, such as the hardening and cracking of plastic materials, the hardening and brittleness of rubber, the discoloration of paint, etc., and cause non-negligible damage to human skin, so The development of UV absorbers with wide UV absorption spectrum and good stability has become a common requirement of industrial development and daily life. [0003] Traditional UV absorbers mainly include salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines and hindered amin...

AI Technical Summary

Problems solved by technology

However, there are many defects in traditional UV absorbers: 1. Most of them are high-molecular organic materials. Toxic raw materials are often used in the synthesis process, such as benzene, etc. It is inevitable that there will be toxic raw materials or toxic intermediate products added to the final product. As a product that exists in people's daily life and is often in contact with, such as cosmetics, synthetic fibers, etc., it directly or indirectly endangers people's health and safety; 2. Most of the traditional UV absorbers are single UV absorbers. The range of ultraviolet light wave is also relatively simple, either mainly absorbing UVA or mainly absorbing UVB, only a variety of mixed use can achieve the effect of absorbing UVA and UVB at the same time, and the manufacturing process of compound UV absorbers is complicated; 3. Traditional UV Absorbents are expensive, and the average market price is 50-80 yuan / kg, which accounts for a large proportion of the cost of additives in industrial products; 4. It affects the transparency of products and limits the scope of use of UV absorbers; 5. Compatibility Poor performance, limited range of application to other materials

Since some studies have shown that directly adding carbon dots in some carriers such as synthetic rubber does not have any UV absorption effect, thus limiting the application range of carbon dots, the application of carbon dot composites in the field of ultraviolet absorption or ultraviolet elimination is also rarely reported

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