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Device for processing sodium naphthalene treatment on the surface of product made of polyfluortetraethylene with sodium naphthalene solution and the method thereof

A polytetrafluoroethylene, surface treatment technology, applied in the use of sodium naphthalene solution, sodium naphthalene treatment device for the surface of polytetrafluoroethylene products and its field, can solve the physical injury of operators, unstable product quality, difficult operation control, etc. problems, to achieve the effect of simple equipment, easy operation and control, and guaranteed activity

Inactive Publication Date: 2009-04-08
JUHUA GROUP TECH CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This implementation method not only wastes raw materials seriously, but also causes serious pollution to the environment, the body of the operator is also seriously injured, and the operation is difficult to control and the product quality is unstable.

Method used

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  • Device for processing sodium naphthalene treatment on the surface of product made of polyfluortetraethylene with sodium naphthalene solution and the method thereof
  • Device for processing sodium naphthalene treatment on the surface of product made of polyfluortetraethylene with sodium naphthalene solution and the method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 373 grams of naphthalene to 8900 grams of tetrahydrofuran under stirring to make it completely dissolve, then add 47 grams of chopped metal sodium, stir and react to prepare sodium naphthalene solution; hang tetrafluoroethylene products on the hanging basket securely, put In the surface treatment device equipped with the above-mentioned sodium naphthalene solution, after vibrating with an electronic oscillator for 180 seconds, wash the polytetrafluoroethylene product with tetrahydrofuran and water respectively, remove the surface attachments of the product, and finally dry it; treat PTFE products 500 After chipping, put it into the settling circulation tank, then return to the surface treatment device with nitrogen pressure, add 28 grams of metal sodium regeneration solution for 2 hours, and continue to treat the surface of the product with sodium naphthalene.

Embodiment 2

[0026] Stir 3050 grams of naphthalene into 8900 grams of tetrahydrofuran to dissolve it completely, then add 760 grams of chopped metal sodium, stir and react to prepare a naphthalene sodium solution; hang the tetrafluoroethylene product on the hanging basket securely, put In the surface treatment device equipped with the above sodium naphthalene solution, after oscillating with a pneumatic oscillator for 30 seconds, the polytetrafluoroethylene product was washed with tetrahydrofuran and water respectively to remove the surface attachments of the product, and finally dried; After 3000 pieces of products, put them into the settling circulation tank, then return to the surface treatment device with nitrogen pressure, add 385 grams of sodium metal regeneration solution for 8 hours, and continue the treatment of sodium naphthalene on the surface of the products.

Embodiment 3

[0028] Stir 640 grams of naphthalene into 8900 grams of tetrahydrofuran to dissolve it completely, then add 120 grams of chopped metal sodium, stir and react to prepare a sodium naphthalene solution; hang the tetrafluoroethylene product on the hanging basket securely, put In the surface treatment device equipped with the above-mentioned sodium naphthalene solution, after oscillating with a piston oscillator for 90 seconds, the polytetrafluoroethylene product was washed with acetone and water respectively to remove the surface attachments of the product, and finally dried; After 1000 pieces of products, put them into the sedimentation circulation tank, then return to the surface treatment device with nitrogen pressure, add 58 grams of sodium metal regeneration solution for 3 hours, and continue the treatment of sodium naphthalene on the surface of the products.

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Abstract

The present invention discloses apparatus and process of treating surface of Teflon product with naphthalene-sodium solution. The process includes the following steps: 1. compounding naphthalene-sodium solution through dissolving naphthalene 4.0-24.0 wt% and sodium 0.5-6.0 wt% in tetrahydrofuran 70.0-95.5 wt%; 2. setting Teflon product inside the naphthalene-sodium solution for vibrating treatment and washing the Teflon product; and 3. regenerating the naphthalene-sodium solution. Treating Teflon product with naphthalene-sodium solution can raise the wettability and sticking performance obviously, and the treating process has less environmental pollution.

Description

technical field [0001] The invention relates to a device and method for treating the surface of polytetrafluoroethylene products with naphthalene sodium solution. More specifically, it is a device and method for treating the surface of polytetrafluoroethylene products with naphthalene sodium solution. Background technique [0002] Polytetrafluoroethylene (hereinafter also referred to as "PTFE") has a chemical structure of polymer material. [0003] With the rapid development of the modern automobile industry, the operating conditions and requirements of automobiles are getting higher and higher, and the requirements for oil seals used in internal combustion engines are also becoming more and more stringent. As a polymer material with excellent performance, polytetrafluoroethylene has excellent chemical stability, electrical insulation, extremely low coefficient of dynamic friction, non-combustibility, chemical corrosion resistance and high mechanical strength, and is cons...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C71/00C08J7/02
Inventor 吴周安吴奕刘建华周晓红张坚文吴敏张文革
Owner JUHUA GROUP TECH CENT