Anti-ultraviolet glass with small color difference and preparation method thereof

Abstract

The invention discloses anti-ultraviolet glass with small color difference and a preparation method thereof, and relates to the technical field of anti-ultraviolet glass. According to the anti-ultraviolet glass with the small color difference, the anti-ultraviolet effect can be achieved only by adding a small amount of Fe2O3 (0.1-0.2%) and CeO2 (0.04-0.1%), the color difference change is small, and the cost is low. According to the glass prepared by the preparation method provided by the invention, added materials can be uniformly dispersed in a glass body in the glass melting process, so thatthe effects of uniform color and small color difference change are achieved. Compared with common glass, the anti-ultraviolet glass with the small color difference has the advantages that the color values (including brightness L, a* and b*) of the glass are slightly changed after the anti-ultraviolet glass with small color difference is added with materials, so that the glass can hardly be distinguished by naked eyes, and the appearance of the glass is not influenced. According to the anti-ultraviolet glass with small color difference provided by the invention, the ultraviolet light transmittance can be effectively reduced from 65-75% to 44-50% under the condition that the visible light transmittance of the glass is not greatly reduced.

Description

technical field [0001] The invention relates to the technical field of anti-ultraviolet glass, in particular to an anti-ultraviolet glass with small color difference and a preparation method thereof. Background technique [0002] Although ultraviolet rays have the functions of promoting vitamin D synthesis, sterilization and health care in animals, they will cause aging of facilities and equipment, damage to skin, decline of immune function and cause skin cancer and cataracts. Therefore, resisting ultraviolet radiation has caused people to widespread attention. [0003] Existing anti-ultraviolet glass adopts a film method or a coating method to form a layer of anti-ultraviolet film on the outer surface of the glass. The film method uses multi-layer films such as protective film, adhesive layer, polyester film and anti-ultraviolet coating to stick on the glass substrate On the surface, the coating method is to sandwich a transparent anti-ultraviolet coating between two glass...

AI Technical Summary

Problems solved by technology

[0005] However, there are four problems in the above-mentioned anti-ultraviolet glass: first, the cost is high, and the film or coating on the ordinary glass substrate will increase the cost of materials and equipment; The color is poor. Third, the film or coating will change the color of the glass and affect the appearance of the glass. Fourth, it will reduce the intensity of visible light passing through the glass.

[0006] Ordinary transparent glass is green due to iron ions. To make the glass anti-ultraviolet, the existing method is to form a layer of anti-ultraviolet film on the outer surface of the glass by filming or coating, thereby reducing the intensity of ultraviolet rays passing through the glass. , but these methods will first change the color of the glass, from green to brown, gray or even black. In addition, while reducing ultraviolet light, it will also reduce the intensity of visible light passing through the glass.