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Flexible material with self-cleaning function and preparation method and application thereof

A flexible material and self-cleaning technology, applied in the field of flexible materials, can solve problems such as affecting sound, air permeability, electrical conversion efficiency reduction, oil infiltration, etc., to achieve stable sound and air permeability, stable frequency response, Strong resistance to effects

Inactive Publication Date: 2021-08-10
TIANJIN RIJIN TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to clean the dust accumulated on the surface of these materials. In addition, the oil in daily life will infiltrate, which will affect the permeability of sound and air.
In addition, the surface of the solar panel is exposed to the atmosphere for a long time, and a large amount of water, oil, and solid particles adhere to the surface to cause dirt, which will also lead to a decrease in electrical conversion efficiency and is not easy to clean

Method used

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  • Flexible material with self-cleaning function and preparation method and application thereof
  • Flexible material with self-cleaning function and preparation method and application thereof
  • Flexible material with self-cleaning function and preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0044] The specific steps of the preparation method of the flexible material with self-cleaning function in the present invention are as follows:

[0045] (1) Select a suitable self-cleaning solution;

[0046] (2) Use such as figure 1 with figure 2 The self-cleaning treatment system shown performs a dip coating of the base layer 10 ( figure 1There is only one immersion pool 1 in the immersion tank 1, so it only needs to be dipped once, and when multiple immersion tanks 1 are set according to the needs, multiple dip coatings are required), during which process parameters are adjusted to perform self-cleaning treatment on the base layer 10; specifically In other words, driven by the driving shaft, the flexible material of the base layer 10 passes through the self-cleaning solution. During this process, the self-cleaning solution will adhere to the surface of the base layer 10 material and infiltrate into the internal pores of the material, forming a chimeric cross-link with t...

Embodiment 1

[0062] The fluorine-containing hydrophobic and oleophobic coating in the self-cleaning solution is selected as single-end Z-type perfluoropolyether siloxane (for the preparation method of single-end Z-type perfluoropolyether siloxane, see application number 201610551515.X, patent name It is a Chinese invention patent of "Method for preparing single-end Z-type perfluoropolyether siloxane from perfluoroiodinane", its solid content is 1wt%, and the fluorine solvent is hydrofluoroether. The antistatic agent is an ethoxylated alkylamine with a solid content of 1 wt%. The fluorine solvent is hydrofluoroether. Put the above self-cleaning solution in the soaking tank 1, the liquid level is 2-3cm higher than the rotating shaft in the soaking tank 1, and cover the top cover of the soaking tank 1 to reduce the volatilization loss of the fluorine solvent. Adjust the fifth guide roller 204 (the rotation axis of the fifth guide roller 204 is driven by a servo motor, so the rotation speed o...

Embodiment 2

[0064] Increase the mass fraction of perfluoropolyether siloxane and ethoxylated alkylamine in the self-cleaning solution in Example 1, and measure the oleophobicity of the self-cleaning coating layer 11 . When the mass fraction is 0.2% and 0.3%, the oleophobicity of the self-cleaning coating layer 11 reaches the best effect, and its contact angles are 67.1° and 67° respectively. The water contact angle of the self-cleaning paint layer 11 first decreases and then increases with the increase of the mass fraction, thereby increasing the self-cleaning ability of the flexible material.

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Abstract

The invention provides a flexible material with a self-cleaning function and a preparation method and application thereof.The flexible material comprises a base layer and a self-cleaning coating layer, the self-cleaning coating layer is arranged on the surface and / or inside the base layer, and the self-cleaning coating layer is made of fluorine-containing hydrophobic and oleophobic coating and an antistatic agent. The flexible material is good in waterproof performance, high in oil stain resistance and capable of self-cleaning accumulated dust, the oil repellent grade is 3-8, meanwhile, the flexible material has stable sound transmission and air permeability, and has stable frequency response within the range of 100-10 KHz, and fluoride and an antistatic agent which are excellent in performance are adopted in the preparation method of the flexible material; the material with better hydrophobic, oleophobic and self-cleaning properties is obtained by controlling a plurality of process parameters such as the solid content of the fluorine-containing hydrophobic and oleophobic coating in the self-cleaning solution in the dip-coating process of the base layer material, the solid content of the antistatic agent, the liquid outlet angle of the base layer, the feeding speed, the drying temperature and the like.

Description

technical field [0001] The invention belongs to the field of flexible materials, and in particular relates to a flexible material with self-cleaning function and its preparation method and application. Background technique [0002] At present, smart devices have become an indispensable tool in life, such as mobile smart hardware such as mobile phones, watches, earphones, smart speakers, and smart glasses, as well as smart home appliances such as smart toothbrushes, smart range hoods, smart rice cookers, and smart refrigerators. There must be a through hole on each device, one is the function of transmitting sound, such as receivers, microphones, speakers, etc., the main purpose is to ensure the smooth progress of audio information collection and transmission. Another function is to transmit air, such as ventilation holes and audio adjustment holes. The main purpose is to balance the air pressure difference and sound pressure difference inside and outside the equipment. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D171/00C09D5/24D06M15/53D06M13/372C08J7/04C08J7/044
CPCC09D171/00C09D5/24D06M15/53D06M13/372C08J7/04C08J7/044C08J2471/00C08K5/17
Inventor 许建民赵强
Owner TIANJIN RIJIN TECH
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