Compound functional sandwich glass containing metal nano-structured conductive layer

Abstract

The invention discloses a compound functional sandwich glass containing a metal nanostructured conductive layer, and the sandwich glass provided by the invention relates to the field of auto sandwich glass, and comprises an inside glass substrate, an outside glass substrate, a transparent conductive film, a sandwich polymer and a metal nano-structured conductive layer. The sandwich glass is characterized in that the inside glass substrate and the outside glass substrate are two glass bent plates with curvature; the sandwich glass is composed of two pieces of glass and the sandwich polymer, the transparent conductive film is deposited on one side of one piece of glass facing the sandwich polymer, the metal nano-structured conductive layer is arranged on the transparent conductive film, and the transparent conductive film and the metal nano-structured conductive layer are combined closely and connected with a power supply by virtue of a bus. The compound functional sandwich glass disclosed by the invention has the advantages that the metal nano-structured conductive layer is arranged on the transparent conductive film, and the metal nano-structured conductive layer and the transparent conductive film are connected in parallel, thereby reducing the total resistance for heating the sandwich glass, and then achieving the purposes of concurrently meeting and ensuring that the visible light transmittance is higher than 70% and the sandwich glass is heated by using an auto standard 12V direct-current power supply.

Description

technical field [0001] The invention relates to the field of laminated glass, in particular to a composite functional laminated glass comprising a metal nanostructure conductive layer. Background technique [0002] For the laminated glass used in the front of the car, the national standard requires higher than 70% of the visible light transmittance, and the European standard requires higher than 75%. For automotive glass with heating function, in order to meet the functional requirements such as defrosting, defogging and ice melting, the heating power of the heater needs to meet a certain heating power density requirement, generally 600W / m 2 . [0003] There are two types of existing electric heating laminated automotive glass, one is wire electric heating glass, such as U.S. Patent No. 5,540,961, which lays thin metal wires in the area that needs electric heating, and the metal busbar is directly connected to the automobile power supply ( 12V DC) behind the metal busbar t...

AI Technical Summary

Problems solved by technology

However, increasing the voltage will affect the service life of the automotive glass power supply system, as well as the loss of voltage conversion, and from the perspective of electricity safety, increasing the voltage may violate the requirements of national standards and pose a safety hazard to the use of vehicles

[0006] On the other hand, nanostructures (nanoparticles and nanowires) based on metals with good conductivity (such as silver) can construct transparent conductive films with excellent performance and form good metal nanostructure conductive layers. Chinese patent applications 200910112925.4, 200910112923.5, 200910112924 .X and 2010179939.0 disclose the method of using silver nanowires to construct a flexible transparent conductive film, and the formed transparent conductive film has excellent optical, electrical and mechanical properties, but these patent documents do not relate to the structure used for laminated glass

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