Anti-dazzle heat insulation safety film and preparation method thereof

Abstract

The invention relates to the field of film materials, and particularly discloses an anti-dazzle heat-insulation safety film and a preparation method thereof. The anti-dazzle heat insulation safety film comprises a polyurethane film as well as a heat insulation layer and a bonding layer which are sequentially bonded on the outer surface of the polyurethane film, the heat insulation layer is made of polyethylene glycol and heat insulation filler; the bonding layer is prepared from a bonding coating; the bonding coating is prepared from the following raw materials: an acrylate adhesive, amino modified EVA particles, an ultraviolet light absorber and an antioxidant; the preparation method comprises the following steps: spraying the polyethylene glycol on the surface of the polyurethane film, then spraying the heat-insulating filler on the surface of the polyethylene glycol, and after drying, forming a heat-insulating layer by the polyethylene glycol and the heat-insulating filler; uniformly mixing an acrylate adhesive, amino modified EVA particles, an ultraviolet light absorber and an antioxidant to obtain an adhesive coating; the bonding coating is sprayed to the surface of the heat insulation layer, the bonding coating is subjected to hot pressing to form a bonding layer, and the finished safety film is obtained. And the safety film has good anti-dazzle and heat-insulating properties at the same time.

Description

technical field [0001] The present application relates to the field of film materials, more particularly, to an anti-glare heat insulation safety film and a preparation method thereof. Background technique [0002] With the development of society, there are more and more vehicles, and drivers are often easily affected by glare when driving a car. Glare refers to the presence of too bright objects in the field of vision or the existence of extremely high brightness contrast, which is easy to cause the driver's vision. Discomfort, or even reduce vision, especially at night, easily lead to traffic accidents. [0003] Due to the great influence of glare on the driver, the anti-glare function is regarded as an important performance index in the automotive film. At present, the anti-glare means on the market are mainly divided into two types, one is the electric anti-glare mirror, its principle Yes: when the light sensor senses strong light, it will increase the voltage to darken...

AI Technical Summary

Problems solved by technology

[0003] Because glare has a greater impact on drivers, the anti-glare function is regarded as an important performance index in automotive films; currently there are two types of anti-glare means on the market, one is electric anti-glare reflectors, the principle of which is Yes: When the light sensor senses strong light, it will increase the voltage to darken the rearview mirror as a whole to achieve the anti-glare effect. However, if the light is strong, it may cause extreme darkness and cause the driver to be unable to see other environments outside the lights. It is also prone to traffic hazards; the other is to coat a layer of anti-glare material layer on the automobile glass. Heat effect, when the vehicle is exposed to the external environment and is exposed to direct sunlight, the high temperature outside will cause a large amount of heat to accumulate inside the vehicle, sometimes the highest temperature inside the vehicle can reach 70-85°C. Under long-term high temperature conditions, it is easy to affect the anti-glare material layer The bonding effect with the vehicle glass, so that the anti-glare material layer is easily detached from the glass surface, causing the vehicle to no longer be anti-glare