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Conductive film with low b * value and high transmittance

A high transmittance, conductive film technology, applied in the field of conductive film, can solve the problems of damaging the conductivity and transparency of the conductive film, and achieve the effect of suppressing the decrease in transparency, high transmittance, and improving scratch resistance.

Active Publication Date: 2020-10-09
山东华科创智技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the dye has no conductivity, directly adding it to the conductive ink will damage the conductivity and transparency of the conductive film

Method used

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  • Conductive film with low b * value and high transmittance
  • Conductive film with low b * value and high transmittance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The conductive film with low b* value and high transmittance in this embodiment is prepared by the following method:

[0032] (1) Hollow SiO 2 Preparation of microspheres: First, 2.5 g of cetyltrimethylammonium bromide (CTAB) was added into deionized water at 60° C., and ultrasonically dispersed and dissolved. Then add 6 mL of n-hexadecane, and stir at 800 rpm for 10 min to form an O / W emulsion system. Add 20mL concentrated ammonia water, keep stirring at 60°C for 30min, then add 20mL tetraethyl orthosilicate (TEOS) and 1.0g polyvinyl alcohol (PVA) dropwise, and continue stirring for 6h to fully mix. After cooling to room temperature, wash three times with absolute ethanol and deionized water, and dry in vacuum for 24 h to obtain hollow SiO 2 Microspheres.

[0033] (2) Hollow SiO 2 Staining of microspheres: First, weigh 0.5g of blue dye and dissolve it in 20ml of absolute ethanol, then weigh 50g of hollow SiO 2 Under the condition of magnetic stirring, slowly add t...

Embodiment 2

[0037] The preparation method of the conductive film of this example is basically the same as that of Example 1, the only difference is that the blue hollow SiO with a mass fraction of 0.3wt% is used 2 Microspheres were added to the silver nanowire conductive ink.

Embodiment 3

[0039] The preparation method of the conductive film of this example is basically the same as that of Example 1, the only difference is that the blue hollow SiO with a mass fraction of 0.5wt% 2 Microspheres were added to the silver nanowire conductive ink.

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Abstract

The invention relates to the technical field of conductive films, particularly to a conductive film with a low b * value and high transmittance. The conductive film comprises a base material layer anda conductive layer located on the base material layer, wherein the conductive layer is formed by coating and curing silver nanowire conductive ink, and blue hollow SiO2 microspheres with the mass fraction of 0.2-1 wt% are added into the silver nanowire conductive ink. According to the invention, a colored chelate composed of a dyeing compound and hollow SiO2 microspheres is adsorbed onto a metalnanowire, so that the characteristic that the resistance of a conductive film is reduced by the hollow SiO2 microspheres and the effect that the b * value is reduced by the blue dye are fully utilized, the reduction of transparency caused by independently adding a colored compound (dye) can be inhibited, and the conductive film with low resistance, low b * value and high transmittance is obtained.

Description

technical field [0001] The invention relates to the technical field of conductive films, in particular to a conductive film with low b* value and high transmittance. Background technique [0002] Transparent conductive film is a kind of film that can conduct electricity and has high transmittance in the range of visible light. It is widely used in display screens, solar cells, light-emitting diodes, low-e glass, transparent windows for anti-electromagnetic interference, etc. . Due to its good electrical conductivity, excellent light transmittance, and flex resistance, as well as its uniform and controllable morphology and high aspect ratio, silver nanowires make silver nanowires a transparent material for ultra-large and flexible touch screens. The best choice for electrode material. [0003] The optical and electrical properties of silver nanowire transparent electrodes are competing parameters. In order to achieve low surface resistance, the transparent carrier will be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B1/16H01B1/22H01B13/00
CPCH01B5/14H01B1/16H01B1/22H01B13/00H01B13/0026
Inventor 靳世东曾西平詹世治肖谢
Owner 山东华科创智技术有限公司
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