Transparent laminated glass based on grids, preparation method and window carrier

Abstract

The invention discloses transparent laminated glass based on grids, a preparation method and a window carrier, the laminated glass comprises first glass, an interlayer and second glass which are arranged in sequence, the interlayer comprises a filling layer and a conductive grid, at least part of the conductive grid is provided with repetitive grid units, the repetition period of the grid units is 30-200 microns, and the first glass and the second glass are sequentially arranged. The width of the wires forming the conductive grid is 2-10 [mu] m. By optimizing the structure and preparation of the conductor grid of the laminated glass, the aspects of high light transmittance, high conductivity, narrow line width, curved glass compatibility and the like are remarkably improved, and the integrated preparation of the planar / curved laminated glass is realized, so that the safety and precision of a glass product are improved.

Description

technical field [0001] The invention relates to glass technology, in particular to a grid-based transparent laminated glass, a preparation method and a window carrier. Background technique [0002] With the advent of the 5G era, smart electronic products have been rapidly developed and widely used, making products in some scenarios (such as automotive glass and aircraft optical windows) put forward higher requirements. In terms of automotive glass, under high temperature, high humidity and foggy conditions, the fog on the glass will affect the observation of road traffic conditions by the probe or drivers and passengers, thus making drivers and passengers face traffic safety hazards. At present, the most commonly used method to solve the fog on the automobile glass is to form a wire on the glass, and achieve the effect of defrosting and defogging through electric heating (02810897.3). This method heats unevenly, slowly, and the opaque lines will block the driver's sight, so...

AI Technical Summary

Problems solved by technology

This method heats unevenly, slowly, and the opaque lines will block the driver's sight, so it is not suitable for use on the front windshield

Another method is to use a thin layer of metal, graphene or metal nanowires as an electric heating film to achieve a uniform heating effect (201810187994.0; 201220509608.3). Well, the higher the heating efficiency, but the conductivity and light transmittance of the graphene or metal nanowire film layer restrict each other. Under high light transmittance, the conductivity is poor, so that the heating power is low

The third method is to form a metal grid on the glass by sputtering metal and etching process, so as to achieve uniform heating and high heating efficiency performance (201710425909.5), but this method is costly and difficult to manufacture in large areas, and the line width is usually larger than 10 μm, visible to the naked eye, affects the sight of drivers and passengers; in addition, car window glass or aircraft windshield is curved, and high vacuum magnetron sputtering on curved glass will make the film layer uneven, so this method is different from that of curved glass. Process compatibility needs to be further improved

The current method used is to form a transparent electromagnetic shielding film on the optical window, such as sandwiching a conductive wire mesh between two layers of glass (200920157252.X, 201921189616.2). The conductive wire mesh has good shielding performance and high light transmittance, but The existing technical wire width is relatively wide, which affects the visual effect, and cannot be applied to hyperboloid glass

However, thin-line-width metal mesh transparent electromagnetic shielding films can be obtained on flexible substrates by photolithography and electroplating methods (such as patents 202011298220.9 and 201911068114.9), but flexible substrates are not stretchable, and when combined with glass with a large curvature , it is easy to form wrinkles, which makes the metal grid interface between the glass and the PET substrate more complicated, thus affecting the light transmittance

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