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Method for preparing metal superhydrophobic surface based on arc treatment

A super-hydrophobic surface and arc treatment technology, which is applied in arc welding equipment, metal processing equipment, metal material coating technology, etc., can solve the problems of difficult cleaning of devices and influence on device functions, and achieve low environmental pollution, low cost and low price. cheap effect

Inactive Publication Date: 2017-10-20
NANCHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In life and production, many tools and devices are exposed to dusty, watery and other seriously polluted environments all year round. The devices with these stains are difficult to clean and will have a serious impact on device functions.

Method used

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  • Method for preparing metal superhydrophobic surface based on arc treatment
  • Method for preparing metal superhydrophobic surface based on arc treatment
  • Method for preparing metal superhydrophobic surface based on arc treatment

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Embodiment Construction

[0014] Such as figure 1 As shown, a method for preparing metal superhydrophobic surface based on arc treatment, the main steps are:

[0015] 1. Pre-treatment of arc treatment: Clean the surface of the flat plate with conventional methods such as alcohol and acetone for use.

[0016] 2. Arc treatment: connect the plate processed by the conventional method to the positive and negative terminals of the welding machine, clamp the plate with the clip connected to the negative electrode, and aim the welding torch at the surface of the plate. The size of the arc is controlled by changing the welding current and voltage. After a period of time, a rough surface with a porous structure is formed.

[0017] 3. Fluorosilane modification treatment: Spin-coat fluorosilane hydrolyzate on the plate sample after chemical corrosion, and finally put the modified sample in an oven to dry to prepare a super-hydrophobic surface.

[0018] Taking the aluminum alloy plate as an example, the preparat...

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Abstract

The invention provides a new method for preparing a hydrophobic material. The method comprises following steps: firstly, surface micro / nano porous structural preparing, wherein a workpiece subject to conventional pretreatment is cleaned for standby application, the arc treatment technology is adopted for obtaining a roughening micro / nano porous surface on the surface of the workpiece; secondly, hydrophobic treatment(fluoroalkyl silane modification treatment), wherein a sample subject to arc treatment is immersed in a fluoroalkyl silane isopropyl alcohol solution, the sample is taken out and is naturally dried under the room temperature condition, and the superhydrophobic surface can be obtained. Arc welding is used for generating the strong and durable gas discharge phenomenon between the workpiece and two electrodes of a welding rod so as to form the micro / nano porous surface, meanwhile, in combination with the fluoroalkyl silane low-surface energy substance, modification is carried out, two general methods are combined together, a new thinking is provided for preparation of the high-performance hydrophobic surface, and the new preparing method has the beneficial effects of being energy-saving, rapid, low in cost, low in preparing environment requirement, easy to operate and the like.

Description

technical field [0001] The invention relates to arc welding technology and surface treatment technology, in particular to a method for preparing metal superhydrophobic surface based on arc treatment. Background technique [0002] In life and production, many tools and devices are exposed to dusty, watery and other heavily polluted environments all year round. The devices with these stains are difficult to clean and will have a serious impact on device functions. In view of this, more and more people urgently hope that these devices can realize self-cleaning function, so it is of great significance to study how to make the devices themselves have superhydrophobic properties. Arc welding equipment is light, flexible in handling, and can be applied to metal materials of various thicknesses, structures, and shapes; because of its characteristics of gas ionization and cathode electron emission, it provides technical support for the preparation of rough micro / nanoporous surfaces. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/73C23C22/78B23K9/013B23K9/167
CPCC23C22/73B23K9/013B23K9/167C23C22/78C23C2222/20
Inventor 朱政强王小乐王官明
Owner NANCHANG UNIV
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