Method for preparing silicone rubber super-hydrophobic self-cleaning surface with pulse laser

A technology of pulsed laser and silicone rubber, which is applied in laser welding equipment, manufacturing tools, welding equipment, etc., can solve the problem that the surface structure cannot be changed, and achieve the effect of green environmental protection, high efficiency and low energy consumption

Inactive Publication Date: 2017-08-11
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the method is simple and suitable for large-scale production, it cannot change the surface structure of the produced or used silicone rubber insulators, and has certain application limitations.

Method used

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  • Method for preparing silicone rubber super-hydrophobic self-cleaning surface with pulse laser
  • Method for preparing silicone rubber super-hydrophobic self-cleaning surface with pulse laser
  • Method for preparing silicone rubber super-hydrophobic self-cleaning surface with pulse laser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Experimental steps: using a pulsed laser with a wavelength of 1064nm, the surface of the silicone rubber sample is scanned by laser; the pulse width of the laser is 240ns, the energy of a single pulse is 0.5mJ, and the repetition frequency is 80kHz. The laser scan uses a galvanometer system, Make the laser beam irradiate the surface of the silicone rubber sample row by row at a speed of 1121mm / s, and the processing range of the sample is 100mm x 100mm. The galvanometer system is composed of a high-speed rotating X-Y optical scanning head, an electronic drive amplifier, an optical mirror and a field mirror. The scanning speed, scanning range and scanning path of the galvanometer system are controlled and set by a computer controller.

[0033] Use the optical contact angle surface interfacial tension measuring instrument to test the contact angle and rolling angle of the obtained silicone rubber superhydrophobic self-cleaning surface: use the pick-up method to measure, for...

Embodiment example 2

[0038] Experimental steps: using a pulsed laser with a laser wavelength of 1064nm, laser scanning processing is performed on the surface of the silicone rubber sample; the pulse width of the laser is 10ns, the single pulse energy is 0.07mJ, and the repetition frequency is 571kHz. The laser scanning uses a galvanometer system, Make the laser beam irradiate the surface of the silicone rubber sample row by row at a speed of 4000mm / s, and the processing range of the sample is 100mm x 100mm. The galvanometer system is composed of a high-speed rotating X-Y optical scanning head, an electronic drive amplifier, an optical mirror and a field mirror. The scanning speed, scanning range and scanning path of the galvanometer system are controlled and set by a computer controller.

[0039] The contact angle and rolling angle of the obtained silicone rubber superhydrophobic self-cleaning surface were tested by the same test method as the above-mentioned embodiment case 1.

[0040] The superh...

Embodiment example 3

[0044] Experimental steps: using a pulsed laser with a wavelength of 1064nm, the surface of the silicone rubber sample is scanned by laser; the pulse width of the laser is 15ps, the energy of a single pulse is 0.0085mJ, and the repetition frequency is 1MHz. The laser scan uses a galvanometer system, Make the laser beam irradiate the surface of the silicone rubber sample row by row at a speed of 1500mm / s, and the processing range of the sample is 70mm x 70mm. The galvanometer system is composed of a high-speed rotating X-Y optical scanning head, an electronic drive amplifier, an optical mirror and a field mirror. The scanning speed, scanning range and scanning path of the galvanometer system are controlled and set by a computer controller.

[0045] The contact angle and rolling angle of the obtained silicone rubber superhydrophobic self-cleaning surface were tested by the same test method as the above-mentioned embodiment case 1.

[0046] The superhydrophobic self-cleaning surf...

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Abstract

The invention relates to a method for preparing a silicone rubber super-hydrophobic self-cleaning surface with a pulse laser. The pulse layer is used to perform laser scanning on the surface of a silicone rubber sample, a micro nano structure is formed on the surface of the silicone rubber sample, and the super-hydrophobic self-cleaning surface is prepared. The laser preparation method adopted in the invention has the advantages of simple process and mature technology, and only changes the structure of the surface layer of the silicone rubber without changing its body composition, structure and characteristics. Compared with a method adopting the use of chemical reagents on the surface modification of silicone rubber, the method provided by the invention is higher in laser processing efficiency, lower in energy consumption, lower in cost and greener. With the method of the present invention, it is possible to obtain a super-hydrophobic silicone rubber surface within a wide range of process conditions and has a very important effect on practical applications. The method is simple in process, safe and reliable, and suitable for processing silicone rubber products of various shapes and specifications and products covered by silicone rubber. The prepared super-hydrophobic silicone rubber is stable in surface performance and particularly suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of surface modification of silicone rubber materials, in particular to a method for preparing a super-hydrophobic and anti-pollution flashover surface of colored insulating silicone rubber by a pulse laser. Background technique [0002] Silicone rubber has been widely used in many industrial and technical fields, especially in the power industry, due to its good hydrophobicity, unique hydrophobicity recovery ability and many other properties (such as electrical insulation, thermal stability, non-toxic, etc.). . Silicone rubber insulators have more advantages than ceramic insulators. On the one hand, it is lightweight, easy to handle and safe; on the other hand, ceramic insulators are often plagued by cracking, while silicone rubber insulators are resistant to mechanical shocks such as vehicles hitting utility poles. Silicone rubber insulators are often used in high-voltage transmission lines due to their w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/04B23K26/352
CPCH01B19/04B23K26/352
Inventor 陈列汪幸刘顿郑重翟中生杨奇彪娄德元彼得·班内特
Owner HUBEI UNIV OF TECH
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