Unlock instant, AI-driven research and patent intelligence for your innovation.

Superhydrophobic transparent film and preparation method, flexible organic electroluminescence display substrate

A transparent film and super-hydrophobic technology, which is applied in the preparation and application of hydrophobic materials, can solve the problems of preparing low-cost transparent and hydrophobic films, and achieve the effects of low cost, simple preparation method and high light transmittance.

Inactive Publication Date: 2018-07-17
BOE TECH GRP CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that low-cost transparent hydrophobic films cannot be prepared under mild conditions in the prior art, the present invention provides a super-hydrophobic transparent film, a preparation method, and a flexible organic electroluminescent display substrate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Superhydrophobic transparent film and preparation method, flexible organic electroluminescence display substrate
  • Superhydrophobic transparent film and preparation method, flexible organic electroluminescence display substrate
  • Superhydrophobic transparent film and preparation method, flexible organic electroluminescence display substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a kind of preparation method of superhydrophobic transparent film, such as figure 1 shown, including the following steps:

[0042] An adhesive 2 is formed on the transparent film layer 1, and the surface of the adhesive 2 has a plurality of protrusions arranged at intervals;

[0043] Provide a substrate 3 with nanopillars 4 formed on its surface;

[0044] Adhering part of the nanopillars 4 on the surface of the substrate 3 to the raised portion of the adhesive 2;

[0045] removing the substrate 3;

[0046] The nanopillars 4 not adhered to the protrusions are removed so that the nanopillars 4 adhered to the protrusions form nanobeams 5 .

[0047] In the superhydrophobic transparent film of this embodiment, an adhesive 2 with a rough surface is first formed on the transparent film layer 1, and then the nano-pillars 4 are adhered to the protrusions on the rough surface of the adhesive 2 to obtain a superhydrophobic film with good hydrophobic pro...

Embodiment 2

[0049] This embodiment provides a kind of preparation method of superhydrophobic transparent film, such as Figure 2-8 shown, including the following steps:

[0050] S01. Prepare the first template 6, wherein the first template 6 includes a plurality of raised parts arranged in an array, the size of the raised parts in the row direction and the column direction is 40-160um, and the adjacent raised parts The ratio of the pitch of the portions to the size of the raised portions is 0.25.

[0051] Specifically, such as figure 2 As shown, a photoresist 71 with a plurality of protruding portions arranged at intervals is formed on the surface of the second template 70 by a photolithography process; The polymerizable monomer is covered, and the polymerizable monomer is polymerized and peeled off from the photoresist 71 to obtain the first template 6 .

[0052] Preferably, the second template 70 is made of hard material.

[0053] That is to say, the second template 70 is made of a...

Embodiment 3

[0069] This embodiment provides a superhydrophobic transparent film, which is prepared by the method of the above-mentioned embodiment, such as Figure 9 As shown, the superhydrophobic transparent film includes a transparent film layer 1, and an adhesive 2 is arranged on the transparent film layer 1, and the surface of the adhesive 2 has a plurality of raised portions arranged at intervals, and the raised portions The side away from the film is provided with a nanobeam 5 formed by gathering one end of a plurality of nanopillars.

[0070] Preferably, the thickness of the transparent film layer 1 is 10nm-500nm.

[0071] Preferably, the transparent film layer 1 is made of any one of polycarbonate (PC), polyethylene (PE), polymethyl methacrylate (PMMA), and polyethylene terephthalate (PET). constitute.

[0072] Here, this embodiment gives a specific example: the transparent film layer 1 is made of PET, and its thickness is 0.1mm; The size of the protrusions in the column direct...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
contact angleaaaaaaaaaa
Login to View More

Abstract

The invention provides a super-hydrophobic transparent film, a preparation method, and a flexible organic electroluminescent display substrate, which belong to the technical field of hydrophobic materials, and can solve the problem that a low-cost transparent hydrophobic film cannot be prepared under mild conditions in the prior art. In the super-hydrophobic transparent film of the present invention, an adhesive with a rough surface is first formed on the transparent film layer, and then the nano-columns are adhered to the protrusions on the rough surface of the adhesive to obtain a super-hydrophobic transparent film with good hydrophobic performance. The contact angle of the superhydrophobic transparent film prepared by the method is >170°, the rolling angle is <4°, and has self-cleaning function; the light transmittance is high, reaching 85-93%; the preparation method of the invention is simple and the cost is low. The superhydrophobic transparent film of the present invention is suitable for various fields, especially for flexible display devices.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of hydrophobic materials, and in particular relates to a superhydrophobic transparent film, a preparation method, and a flexible organic electroluminescence display substrate. Background technique [0002] Various devices based on glass are inseparable from people's lives, such as display screens and car windshields. However, dust particles are easy to adhere to the surface of equipment based on glass, which not only affects the appearance, but also affects the use. For this reason, a protective film that can be pasted on the surface of a glass substrate to prevent these problems has emerged as the times require. [0003] The inventors have found that there are at least the following problems in the prior art: superhydrophobic materials have excellent properties such as self-cleaning, waterproof, and anti-fog, and have a wide range of applications and can be used for protectiv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/20H01L51/52
CPCC09J7/243C09J7/245C09J7/25C09J7/255C09J2423/046C09J2433/006C09J2467/006C09J2469/006C09J2301/206H10K50/844
Inventor 胡海峰谢涛峰曾亭张由婷马伟杰殷刘岳
Owner BOE TECH GRP CO LTD