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Preparation method of tensile transparent conductive membrane material

A transparent conductive film and film material technology, which is applied in the field of energy nanometers, can solve the problems of irregularity, material conductivity drop, and material conductivity change.

Inactive Publication Date: 2013-07-31
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is easily damaged during the stretching process, and the conductivity of the material drops significantly, and the conductivity of the material changes indefinitely and irregularly during repeated stretching and shrinkage.

Method used

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  • Preparation method of tensile transparent conductive membrane material
  • Preparation method of tensile transparent conductive membrane material
  • Preparation method of tensile transparent conductive membrane material

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preparation example Construction

[0038] In another aspect of the present invention, a method for preparing a stretchable transparent conductive film material is provided, the method comprising the following steps:

[0039] (1) Formulating different polar solvents, non-polar solvents, surfactants and polymers into emulsions;

[0040] (2) Control the surface polarity of metal nanowires, distribute them in emulsion, drop-coat them into sheets, dry them under control, wash and remove surfactants and polymers, heat them and dry them again, and perform metal nanowire network leveling treatment ;

[0041] (3) The initial organic film materials such as metal nanowires and polydimethylsilane are made into stretchable transparent conductive film materials, and the polarity treatment and surface roughness of metal nanowires are adjusted to improve the metal nanowires and organic materials. Cohesion of polymer virgin film materials.

[0042] The step (1) is carried out in ultrasonic vibration or mechanical stirring.

[...

Embodiment 1

[0046] Example 1: First, prepare 20ml of emulsion with chloroform as non-polar solvent, water as polar solvent, El-10 as surfactant, and polystyrene (PS) added. During the preparation process, vibration and stirring are required. Carried out at room temperature to obtain a stable emulsion.

[0047] Add the dispersion of silver nanowires with high aspect ratio (diameter 5nm-500nm, length 0.5μm-2000μm) in water to the above emulsion, ultrasonically oscillate evenly and drop it on a glass sheet. After drying, soak it in chloroform After 6 hours, soak in methanol or distilled water for 4 hours, take it out, and dry it at 220° C. for 1 hour to obtain an ordered transparent and conductive network structure of silver nanowires.

[0048] Polydimethylsilane is used as the initial film material, dissolved in an organic solvent, and then added dropwise on the above-mentioned glass sheet with a transparent and conductive network structure of silver nanowires. After drying, it is peeled o...

Embodiment 2

[0051] Example 2: First, prepare 20ml of emulsion with xylene as non-polar solvent, water as polar solvent, El-10 as surfactant, and polystyrene (PS) added. During the preparation process, vibration and stirring are required. Performed at room temperature to obtain a stable emulsion.

[0052] Add the dispersion of silver nanowires with high aspect ratio (diameter 5nm-500nm, length 0.5μm-2000μm) in water to the above emulsion, ultrasonically oscillate evenly and drop on the glass sheet, after drying, wash with xylene Soak for 6 hours, then soak in methanol or distilled water for 4 hours, take it out, and dry at 220° C. for 1 hour to obtain an ordered transparent and conductive network structure of silver nanowires.

[0053] Polydimethylsilane is used as the initial film material, dissolved in an organic solvent, and then added dropwise on the above-mentioned glass sheet with a transparent and conductive network structure of silver nanowires. After drying, it is peeled off, and ...

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Abstract

The invention provides a preparation method of tensile transparent conductive membrane material. Concretely, the invention employs an emulsion method to arrange metal nano wires of high draw ratio, in order to construct an ordered tensile transparent conductive network structure, and solve a caking problem of polymer, thereby the ordered grid structure of the metal nano wires is controllable, and can not be destroyed in a stretching state, and can be combined better with polymers. The light transmittance of the metal nano wire grid is 50-90%, and the diamond resistor is 10-100 ohm / sq, and the number of wire in a grid controllable, and the size of a unit grid is controllable between 50-500 nm; the membrane material can be stretched for more than 1000 times, and the elongation is 5-150%, and the rate of conductivity change is 5-50%.

Description

technical field [0001] The invention relates to the related field of energy nanotechnology, in particular to a method for manufacturing stretchable transparent conductive film materials used in LEDs, solar cells, medical sensors, supercapacitors, electromagnetic shielding, and high-temperature batteries. Background technique [0002] In the few reports on the use of silver nanowires in stretchable, transparent, and conductive materials, the solution drop method is usually used, that is, the nanowires suspended in alcohol are dropped on a glass plate, and after drying, compounding, substrate peeling, After post-processing and other processes, stretchable, transparent and conductive materials are obtained. A stretchable, transparent, and conductive disordered silver nanowire network was fabricated using this drop-off method. However, it is easily damaged during the stretching process, and the conductivity of the material drops significantly, and the conductivity of the materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/16C08L67/02C08L21/00C08K7/00C08K3/08C08J5/18
Inventor 张庆武张晴晴尹继磊景琳舒贺培
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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