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A kind of nano polytetrafluoroethylene coating and its preparation method and application

A technology of polytetrafluoroethylene and polyvinyl alcohol, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of cumbersome drawing process, large friction coefficient, environmental pollution, etc., to improve quality and service life, excellent Lubrication performance, effect of reducing production cost

Active Publication Date: 2019-06-11
上海零慕纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The first purpose of the present invention is to improve the lubricating material used in the existing titanium wire drawing process, which has a large friction coefficient and is not easy to be dip-coated on the surface of the titanium wire, resulting in cumbersome drawing process and environmental pollution, thereby providing A nano-polytetrafluoroethylene coating with excellent lubricating properties

Method used

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  • A kind of nano polytetrafluoroethylene coating and its preparation method and application
  • A kind of nano polytetrafluoroethylene coating and its preparation method and application
  • A kind of nano polytetrafluoroethylene coating and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0046] Prepare the nano-polytetrafluoroethylene coating of Example 1-3 according to formula 1-3 and specific preparation method.

[0047] The obtained nano-polytetrafluoroethylene coating samples are further used in subsequent examples.

Embodiment 4

[0048] Example 4: Application of nano-polytetrafluoroethylene coating in drawing process of titanium metal wire

[0049] The traditional titanium wire drawing process using graphite powder coating is as follows: figure 1 Shown, nano polytetrafluoroethylene coating of the present invention is coated on the concrete technological process of application in titanium metal wire drawing process as figure 2 As shown, the specific process steps are as follows:

[0050] 1) Dip the titanium metal wire in the nano-polytetrafluoroethylene coating for 1-5 minutes;

[0051] 2) Drying the titanium wire dipped in the nano-polytetrafluoroethylene coating at 30-80° C. for 1-30 minutes;

[0052] 3) drawing the dried titanium wire four times;

[0053] 4) Clean the nano-polytetrafluoroethylene coating on the surface of the drawn titanium wire with 40-80°C hot water;

[0054] 5) drying.

[0055] After testing, the obtained titanium wire is qualified.

Embodiment 5

[0056] Example 5: Application of nano-polytetrafluoroethylene coating in drawing process of titanium metal wire

[0057] Nano polytetrafluoroethylene coating of the present invention is coated with the specific technological process of application in titanium metal wire drawing process as figure 2 As shown, the specific process steps are as follows:

[0058] 1) Apply the nano-PTFE coating directly on the titanium wire;

[0059] 2) drying the titanium metal wire coated with nano-polytetrafluoroethylene coating at 30-80°C for 1-30 minutes;

[0060] 3) drawing the dried titanium wire four times;

[0061] 4) Clean the nano-polytetrafluoroethylene coating on the surface of the drawn titanium wire with 40-80°C hot water;

[0062] 5) drying.

[0063] After testing, the obtained titanium wire is qualified.

[0064] In summary, the nano-polytetrafluoroethylene coating of the present invention has excellent lubricating properties, and can be well dip-coated on the smooth surface...

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Abstract

The invention discloses a nano polytetrafluoroethylene coating. The nano polytetrafluoroethylene coating is prepared from components in percentage by weight as follows: 15%-30% of nano polytetrafluoroethylene, 20%-40% of Arabia gum, 2%-5% of polyvinyl alcohol and the balance of water. During application, a titanium metal wire is dipped in and coated with the nano polytetrafluoroethylene coating and dried, then the dried titanium metal wire is drawn, the nano polytetrafluoroethylene coating on the surface of the drawn titanium metal wire is cleaned with hot water, and the titanium metal wire is dried. The nano polytetrafluoroethylene coating has excellent lubrication performance, the smooth surface of the to-be-drawn titanium metal wire can be well dipped in and coated with the nano polytetrafluoroethylene coating, so that the drawing technology is simplified, the production cost is reduced, the quality of the titanium metal wire is improved, the service life of the titanium metal wire is prolonged, environmental pollution caused by graphite powder and health problem of operators due to the graphite powder are greatly reduced, and the coating has the broad industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a nano-polytetrafluoroethylene coating and a preparation method and application thereof. Background technique [0002] Polytetrafluoroethylene (Teflon or PTFE), commonly known as "Plastic King", is a high molecular compound polymerized by tetrafluoroethylene. Its relative molecular mass is relatively large, ranging from hundreds of thousands to ten million. Above, generally in the millions (the degree of aggregation is 10 4 order of magnitude, while polyethylene is only at 10 3 ), has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-stickiness, electrical insulation and good aging resistance. CF in PTFE 2 The units are arranged in a zigzag shape. Since the radius of the fluorine atom is slightly larger than that of the hydrogen atom, the adjacent CF 2 The unit cannot be completely oriented in the trans-cross orientation. The f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/02C10M147/02C10N40/24
CPCC10M147/02C10M173/02C10N2040/24C10N2040/242
Inventor 赵德耀
Owner 上海零慕纳米材料科技有限公司
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