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A buffer coating for transferring conductive layer of nano-silver wire and transfer method thereof

A technology of nano-silver wire and buffer coating, applied in the direction of equipment for manufacturing conductive/semiconductive layers, nanotechnology for materials and surface science, conductive layers on insulating carriers, etc., can solve the problem of limiting the flexibility of conductive films Sexuality, limited flexibility of nano-silver wire conductive film, etc.

Active Publication Date: 2021-05-04
合肥微晶材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the nano-silver wire itself has good flexibility, the flexibility of the conductive layer can fully meet any situation through modification, but the flexibility of the film substrate itself limits the flexibility of the nano-silver wire conductive film
[0004] In view of the limited flexibility of silver nanowire conductive film at present, it is urgent to develop a flexible transparent silver nanowire conductive film that is not limited by the flexibility of the base film, can be applied to any flexible display field, and has excellent performance.

Method used

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  • A buffer coating for transferring conductive layer of nano-silver wire and transfer method thereof
  • A buffer coating for transferring conductive layer of nano-silver wire and transfer method thereof
  • A buffer coating for transferring conductive layer of nano-silver wire and transfer method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] In this example, the special flexible transparent optical adhesive for nano-silver wire transparent conductive film is prepared as follows:

[0067] First, the synthesis of polyurethane acrylic acid prepolymer specifically includes the following steps:

[0068] (a) Dehydration of raw materials: PEG-1000, polyether triol polyoxypropylene triol-600, 1,6-hexamethylene diisocyanate and hydroxyethyl acrylate are subjected to high-temperature vacuum dehydration treatment. The treatment conditions are: The temperature is 100°C, the vacuum degree is 0.1MPa, and the time is 2h.

[0069] (b) Reaction of polyol and isocyanate: in N 2 Under a protective environment, add 5.5 mol of the above-mentioned dehydrated 1,6-hexamethylene diisocyanate into the flask, mechanically stir at a speed of 500 r / min, while slowly heating to 60°C, and then add 3.64 mol of the dehydrated The mixed solution of PEG-1000 and 0.91mol polyether trihydric alcohol polyoxypropylene triol-600 was added dropw...

Embodiment 2

[0076] The composition of each component of the buffer coating in this embodiment by mass percentage is:

[0077]

[0078] Specifically, the high acid value acrylate used in this example is Doublemer270 (acid value 200-250, double bond chemical industry), the fluorine-containing additive used is FB9474 (Shanghai Fengbiao Chemical Technology Co., Ltd.), and the active monomer used is propylene glycol di Glycidyl ether, the basic catalyst used is triphenylphosphine, the photoinitiator used is photoinitiator BDK, and the solvent used is composed of ethyl acetate, isobutanol and cyclohexanol in a mass ratio of 1:1:1.

[0079] Based on the above-mentioned buffer coating, a base film with a buffer coating is produced in this embodiment, comprising the following steps:

[0080] (1) Add solvent, high acid value acrylate, fluorine-containing additives, active monomer, basic catalyst, and photoinitiator into the dispersion tank in sequence, mechanically stir at 1000r / min for 30min, a...

Embodiment 3

[0087] The composition of each component of the buffer coating in this embodiment by mass percentage is:

[0088]

[0089] Specifically, the high acid value acrylate used in this example is Doublemer623 (acid value 50-70, double bond chemical industry), the fluorine-containing additive used is FB9474 (Shanghai Fengbiao Chemical Technology Co., Ltd.), and the active monomer used is propylene glycol di Glycidyl ether, the basic catalyst used is triphenylphosphine, the photoinitiator used is photoinitiator BDK, and the solvent used is composed of ethyl acetate, isobutanol and cyclohexanol in a mass ratio of 1:1:1.

[0090] Based on the above-mentioned buffer coating, a base film with a buffer coating is produced in this embodiment, comprising the following steps:

[0091] (1) Add solvent, high acid value acrylate, fluorine-containing additives, active monomer, basic catalyst, and photoinitiator into the dispersion tank in sequence, mechanically stir at 1000r / min for 30min, and...

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Abstract

The invention discloses a buffer coating for transferring a nano-silver wire conductive layer and a transfer method thereof. Layer, so that the conductive layer can be transferred through the flexible transparent optical glue, to obtain a flexible nano-silver wire transparent conductive film with better optical performance and flexibility, based on the flexible transparent optical glue. The buffer coating of the present invention can form good adhesion between the base film, and will not be taken away by synchronous transfer when the conductive layer is transferred; at the same time, the buffer coating has a moderate surface tension, which is conducive to the coating of the conductive layer, and because it contains A very small amount of fluorine-containing additives makes the adhesion between the conductive layer and the buffer coating poor, which is beneficial to the transfer of the subsequent conductive layer.

Description

technical field [0001] The invention belongs to the field of flexible display, and in particular relates to a buffer coating for transferring a nano-silver wire conductive layer and a transfer method thereof. Background technique [0002] With the development of electronic display to large size and flexibility, the requirements for the flexibility of conductive films are getting higher and higher. At present, the ITO transparent conductive film with the largest amount in the market has the problems of high square resistance and poor flexibility, and is not suitable for large-size displays and flexible displays. The nano-silver wire in the new material has become the best substitute material for ITO due to its excellent comprehensive properties such as optical properties, good flexibility, and low square resistance. [0003] The square resistance of the nano-silver wire conductive film can be made very low, which is completely suitable for large-scale displays. However, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02C09D7/63C09D5/20C08J7/04C08J7/044H01B13/00H01B5/14B82Y30/00B82Y40/00C09J175/16C09J11/06C09J7/30C09J7/10C08G18/48C08G18/67C08G18/73
CPCB82Y30/00B82Y40/00C08G18/4812C08G18/672C08G18/73C08J2367/02C09D4/00C09D5/20C09J11/06C09J175/16C09D7/63C09J7/10C09J7/30H01B5/14H01B13/0026C08K5/132C08K5/3475
Inventor 吕鹏张梓晗杨锦张运奇
Owner 合肥微晶材料科技有限公司
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