Method and device for treating carbon fibers through anodic oxidation based on plasma enhancement
A plasma and anodizing technology, which is used in the treatment of carbon fiber surface modification, carbon fiber treatment devices, and anodized carbon fiber fields, which can solve the problems of reducing oxidation resistance and mechanical properties, poor coating adhesion, and material damage. , to achieve the effect of low cost, easy operation and small damage
Active Publication Date: 2019-11-01
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF7 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The anodic oxidation method is to use the metal or alloy to be treated as an anode, and under the corresponding electrolyte and specific process conditions, due to the action of an applied current, a uniform film is formed on the surface of the metal or alloy, thereby improving its corrosion resistance. resistance, enhanced wear resistance and hardness, the thickness of the film is several microns to hundreds of microns, but the cost of anodizing is high and the coating adhesion is poor. At the same time, the oxygen generated by the anode will damage the easily oxidized material and reduce its resistance. Oxidation and mechanical properties
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0033] The device involved in preparing the coating on the carbon fiber by adopting the plasma-enhanced anodic oxidation treatment method includes an anode 2, a cathode 7, a liquid storage tank 3, a pump 4, a valve 5, a nozzle 8, a fixed frame 1 and a mobile support 6, Such as figure 1 shown;
[0034] Anode 2 is a rectangular graphite plate (purity 99.9%, Beijing Jinglong Special Carbon Technology Co., Ltd.);
[0035] The cathode 7 is a copper rod (Langfang Xinchaolong Cable Technology Co., Ltd.), with 1.5cm bare electrode reserved at one end, and the rest is covered with insulating material;
[0036] The cathode 7 and the anode 2 are respectively connected to the power supply, the anode 2 is placed vertically above the liquid storage tank 3, the anode 2 and the carbon fiber to be processed are installed on both sides of the fixed frame 1, and the carbon fiber is completely attached to the anode 2; the cathode 7 is inserted Inside the nozzle 8, the exposed electrode end is f...
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
Login to View More Abstract
The invention relates to a method and device for treating carbon fibers through anodic oxidation based on plasma enhancement, and belongs to the technical field of carbon fiber surface modification. The method comprises the steps that the carbon fibers tightly adhere to an anode, the anode is not in contact with an electrolyte, a cathode is installed in a spray head of a spray gun, the electrolyteand a plasma arc generated by the cathode in the spray gun are sprayed out together from the spray head of the spray gun and sprayed on the surfaces of the carbon fibers, and a dense coating is formed on the carbon fibers under the combined action of the anodic oxidation and plasma. The method has the advantages that the process is simple, the cost is low, and the uniform, continuous and dense coating can be rapidly prepared on the carbon fibers; the device has the advantages that the structure is simple, the operation is easy, the cost is low, and the device is suitable for the continuous treatment of carbon fiber surfaces by small and medium-sized enterprises.
Description
technical field [0001] The invention relates to a treatment technology for carbon fiber surface modification, in particular to a plasma-enhanced anodic oxidation treatment method for carbon fiber and a device for treating carbon fiber, belonging to the technical field of carbon fiber surface modification. Background technique [0002] Carbon fiber has become a potential development direction for various applications due to its excellent properties, high specific modulus, low density, good thermal stability and high impact resistance. In recent years, there has been increasing interest in the development and research of carbon fiber materials. Especially under inert atmospheric conditions, carbon fibers can be used at extremely high temperatures. However, these applications have been severely limited due to the oxidation of carbon fibers in an oxygen-containing atmosphere above 500 °C. Preparing ceramic coatings on carbon fibers is one of the effective ways to improve their...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/02D06M10/06C25D11/02
CPCC25D11/005C25D11/02D06M10/02D06M10/06
Inventor 陈为为卜爱明张永福向艳程焕武王鲁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY