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A kind of superhydrophobic film and its preparation method and application

A super-hydrophobic and thin-film technology, applied in the field of membrane materials, can solve problems such as difficulty in preparing super-hydrophobic thin films, limit wide practical applications, expensive raw materials or equipment, and achieve excellent explosion-proof function, good anti-fog function, and easy cleaning Effect

Active Publication Date: 2016-05-25
海安浩驰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many methods for preparing superhydrophobic surfaces, such as electrospinning technology, solution method, template synthesis method, plasma polymerization or etching, fluorosilane modification, etc., but the raw materials or equipment used in most methods are relatively expensive, or The preparation conditions are harsh, time-consuming and labor-intensive, and it is especially difficult to prepare large-area superhydrophobic films, which limit their wide practical application.

Method used

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  • A kind of superhydrophobic film and its preparation method and application
  • A kind of superhydrophobic film and its preparation method and application
  • A kind of superhydrophobic film and its preparation method and application

Examples

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Effect test

Embodiment 1

[0030] The present invention described in the embodiments of the present invention provides a superhydrophobic film, such as figure 1 As shown, the film includes 6 layers, from bottom to top are peeling layer 6, adhesive layer 5, first polyester film layer 4, composite layer 3, second polyester film layer 2, hydrophobic coating 1, wherein The composite layer 3, the hydrophobic coating 1, and the adhesive layer 5 are prepared by ourselves, and the other layers can be purchased.

[0031] Wherein, the peeling layer 6, the first polyester film layer 4 and the second polyester film layer 2 are made of optical grade polyester film with a light transmittance of more than 92%. Preferably, the polyester film is made of Japanese TOYOBO company. TA101.

[0032] In addition, the thickness of the peeling layer 6 is 0.016 mm, and the thickness of the first polyester film layer 4 and the second polyester film layer 2 is 23 μm.

[0033] The thickness of the adhesive layer 5 is 0.01 mm, the ...

Embodiment 2

[0045] Basically the same as Example 1, the difference is:

[0046] The composite layer 3 is composed of composite glue, antioxidant, ultraviolet absorber, hindered amine light stabilizer, and infrared absorber according to the percentage content of 1:0.05:0.1:0.05:0.06, and the thickness is 0.01mm.

[0047] The adhesive layer 5 is an acrylic pressure-sensitive adhesive, and the acrylic pressure-sensitive adhesive is prepared from acrylic resin and ethyl acetate in a mass percentage of 3:2.

[0048]The obtained superhydrophobic film was tested for relevant performance, and the test results are shown in Table 2. It can be seen from the results in Table 2 that the superhydrophobic anti-fog film prepared by using the ratio described in this example and the method thereof , the visible light transmittance is as high as 97%, and the visible light transmittance change rate is 3%, indicating that it has high and stable light transmittance; the ultraviolet blocking rate is 100%, and t...

Embodiment 3

[0050] It is basically the same as Example 1, except that the adhesive layer 5 is a silicone resin pressure-sensitive adhesive.

[0051] The silicone resin pressure-sensitive adhesive is prepared by dimethyl silicone oil and NQ resin in a mass percentage of 2:3, and diluted with a diluent in a mass percentage of 0.5:3.5, wherein the diluent is toluene.

[0052] The thickness of the peeling layer is 0.019mm;

[0053] The hydrophobic coating is composed of nano-silicon dioxide and polyurethane-based photocurable resin in a mass percentage of 1:4, the particle size of the nano-silica is 40 nm, and the thickness of the hydrophobic coating is 0.005 mm.

[0054] The obtained super-hydrophobic film was tested for relevant performance, and the test results are shown in Table 3. It can be seen from the results in Table 3 that the super-hydrophobic anti-fog film prepared by using the ratio and method described in this example , the visible light transmittance is 87%, and the visible li...

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Abstract

The invention relates to the field of film materials, in particular to a super-hydrophobic film and a preparation method and application thereof. The film comprises six layers including a stripping layer, a rubber layer, a first polyester film, a composite layer, a second polyester film and an anti-fogging layer from bottom to top. The super-hydrophobic film has a good anti-fogging function, meanwhile the energy consumption shortcoming of a traditional electric heating anti-fogging film is overcome, and the super-hydrophobic film has the advantages of heat insulation, ultraviolet prevention, oxidation resistance and the like the traditional anti-fogging film does not have. In addition, a multi-layer coating composite technology is adopted for the super-hydrophobic film, and accordingly the film has an excellent explosion preventing function. Furthermore, the super-hydrophobic film adopting a hydrophobic coating has the advantages of being easy to clean, not prone to moisture absorption and the like.

Description

technical field [0001] The present invention relates to a membrane material, in particular to a superhydrophobic thin film and a preparation method and application thereof. Background technique [0002] The southern part of China has a subtropical monsoon climate, and the average annual precipitation in the subtropical monsoon climate region is generally 800mm to 1600mm. Rainy weather is more frequent. And the car is the most common means of transportation we use. On rainy days, the driver's line of sight is relatively obstructed. When the vehicle is driving at high speed, the falling rainwater and the water splashed when overtaking are attached to the outside of the windshield. The driver can only see the part swept by the wiper, and the wiper cannot. Brushing off the rainwater in time can easily lead to accidents. [0003] Generally, there are two methods to prepare superhydrophobic surfaces: one is to construct rough geometric structures on the surface of hydrophobic m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/36B32B7/12
Inventor 余兴亮
Owner 海安浩驰科技有限公司
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