Anti-glare glass, referred to as AG glass. It's a very special glass material. The surface treatment reduces the reflection of light, thereby improving the visual effect and avoiding excessive stimulation of light to the human eye. The principle and technology of anti-glare glass involve complex surface processes. It also combines physical and chemical processing methods. This will ensure the best anti-glare effect.
The principle of anti-glare glass is divided into the following types:
Surface reflection structure treatment
By creating tiny uneven structures on the surface of the anti-glare glass, the light is reflected using the principle of "diffuse reflection". In this way, the intensity of the original single beam of light will be reduced, and when the light is scattered, the light reflection effect will be reduced. The characteristic of diffuse reflection is that the light is evenly distributed across the surface, so that the reflected light is no longer concentrated in one direction. It would also block the effects of infectious light. In this sense, anti-glare glass also ensures the health and safety of individual special populations.
Surface coating treatment
Surface coating treatment is to reduce reflection by adding a coating with anti-reflection characteristics on the glass surface. The anti-reflective coating destroys the coating by changing the path of the light and reducing the intensity of the reflected light. Coating materials often use some nanomaterials. These materials have the characteristics of low refractive index, and the refractive index of glass formed a reasonable match. Therefore, the feedback effect of light can be effectively controlled.
Technical analysis of anti-glare glass
The production process of anti-glare glass is mainly divided into two categories: physical treatment and chemical treatment. The physical processing is usually achieved by forming a diffuse reflection structure according to a precise process. The chemical treatment uses nanocoatings to prevent glare.
Chemical modification method
Chemical formation polishing is one of the common manufacturing processes for anti-glare glass. The main principle is to carry out chemical corrosion on the glass surface. By controlling the corrosion depth and uniformity, the rough texture is marked on the glass surface to achieve the effect of light evacuation. The process is also divided into three steps:
· Chemical cleaning: Clean the anti-glare glass first. Remove dirt, dust, etc. from the surface of the glass. In the production of anti-glare glass, this is an inevitable first job. Do the first step well to ensure the effect of subsequent processing work.
· Acid corrosion: The whole glass is immersed in the acid solution. This process requires workers to be equipped with their own equipment to prevent corrosion of the human body. The common etchant is hydrofluoric acid. The corrosive agent will slowly erode the surface of the glass into a bumpy state. This is the key to the role of anti-glare glass.
· Wash finish and neutralization: After corrosion, the corrosive agent is removed by washing. Keep the glass surface clean. So the process is complete.
The process is relatively simple and inexpensive. It can produce anti-glare glass in large quantities and bring good anti-glare effect. However, this method has higher requirements on the process control area. Otherwise, corrosives can easily cause uneven texture on the glass surface. This will affect the appearance of the final anti-glare effect.
Sand blasting process
Sandblasting process by spraying material to treat the glass surface, so that the glass surface to form a small convex texture, in order to achieve the effect of diffuse reflection. The process steps are as follows:
· Material selection: The use of fine particles of abrasive (such as size particles) under the action of high pressure spray gun abrasive spray glass surface.
· Uniform surface treatment: adjust the abrasive spray and pressure to ensure the uniformity of the surface texture and achieve the ideal anti-allergic light effect.
The sandblasting method is suitable for decorative glass and some local anti-glare glass products, and the effect is significant, but it is not suitable for scenes with high requirements for outdoor travel.
