A preparation method of polytetrafluoroethylene tube ribbon coating and polytetrafluoroethylene tube

A polytetrafluoroethylene tube and polytetrafluoroethylene technology, which is applied in the coating, metal material coating process, vacuum evaporation coating and other directions, can solve the complicated tube forming process, the non-transparent tube, and the inability of endoscopic medical depth. Accurate calibration and other issues to achieve the effect of ensuring mechanical transverse stiffness and longitudinal tensile strength, good edge uniformity, and reducing the difficulty of coloring

Active Publication Date: 2022-01-14
青岛汉兴新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tube forming process is cumbersome. In order to ensure longitudinal rigidity and bending strength, this method can only prepare white PTFE tubes with longitudinal ribbons. The tubes are non-transparent, and the longitudinal position, especially the depth Accurate Calibration

Method used

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  • A preparation method of polytetrafluoroethylene tube ribbon coating and polytetrafluoroethylene tube
  • A preparation method of polytetrafluoroethylene tube ribbon coating and polytetrafluoroethylene tube
  • A preparation method of polytetrafluoroethylene tube ribbon coating and polytetrafluoroethylene tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing a polytetrafluoroethylene tube color ribbon coating, the preparation process steps comprising:

[0033] ① PTFE pipe body preparation and treatment.

[0034] The preparation method of the polytetrafluoroethylene pipe body is as follows: the polytetrafluoroethylene dispersion material and the auxiliary agent are mixed and matured, and then the polytetrafluoroethylene paste material is extruded, and molded and sintered. The molding and sintering process steps include extruding the polytetrafluoroethylene paste material into a tube mold, compacting and forming by a press, and sintering in a sintering furnace at 360° C., and the auxiliary agent is kerosene.

[0035] In this embodiment, the PTFE pipe body treatment method adopts plasma surface treatment.

[0036] The plasma surface treatment method is as follows: a put the polyvinyl chloride tube body into the plasma sputtering instrument, b evacuate the sputtering chamber to 0.5mbar, fill with inert g...

Embodiment 2

[0053] This example and its comparative example are implemented by the preparation method of Example 1, the difference is that the coating method of the ribbon pigment in this example is a ring printing method, and

[0054] 2a The tube body is treated with plasma surface, and the water-based pigment is added with tannin modifier;

[0055] 2b (Comparative Example 2) The tube body is treated with plasma surface, and the water-based pigment does not add tannin modifier;

[0056] The process of the ring printing method is as follows: the inner wall of the ring brush head is immersed in the modified ribbon pigment, the polytetrafluoroethylene tube is sent to the inside of the ring brush head, the bristles inside the ring brush head are attached to the outer wall of the tube, spin coating, The teflon tube is then sent out. The ring printing equipment has a simple structure and high production efficiency. However, the ring printing method is inevitably affected by the ring brush he...

Embodiment 3

[0058] This example and its comparative example are implemented by the preparation method of Example 1, and the difference is that the method for treating the PTFE pipe body of this example adopts acid etching surface treatment, and

[0059] 2c The tube body is coated by cover-mold spraying, and the water-based pigment is added with tannin modifier;

[0060] 2d (Comparative Example 3) The tube body is coated by cover-mold spraying, and the water-based pigment does not add tannin modifier;

[0061] 3. The tube body is coated by the ring printing method, the water-based pigment is added with tannin modifier, and the coating is cured three times.

[0062] The acid etching surface treatment method is as follows: put the polyvinyl chloride pipe body into the acid etching tank, vibrate the acid etching for 3 minutes, clean with 50% ethanol aqueous solution, and dry the lotion for use; the treatment solution in the acid etching tank is 5wt% HCl and 1 wt% HF in hydrochloric acid-hydr...

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Abstract

The invention discloses a polytetrafluoroethylene tube ribbon coating preparation method and the polytetrafluoroethylene tube thereof. The modified coating material and the surface treatment of the tube are manufactured by adding an annular ribbon logo coating on the polytetrafluoroethylene tube. layer, which can improve the navigation and positioning of medical staff in endoscopic medical treatment.

Description

technical field [0001] The invention relates to the technical field of polytetrafluoroethylene material coating, in particular to a preparation method of a color ribbon coating of a medical polytetrafluoroethylene pipe material and a polytetrafluoroethylene pipe thereof. Background technique [0002] Polytetrafluoroethylene (polytetrafluoroethylene, referred to as PTFE), because of the tetrafluorohalogen substituents contained in the polymer unit, has obtained the unusual "non-stick" and "self-cleaning" properties, that is, it does not stick to water and does not stick to water. Amphiphobic properties of oils. And temperature and solvent resistance, chemical stability. The material, originally commercialized by DuPont and commonly known as Teflon, is often made into a non-stick coating for non-stick pans, tube walls, or various other cookware, and is used as a finish for the interior and exterior of appliances. [0003] In the medical field, PTFE is used in many convention...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/043C08J7/14C08J7/12C08L27/18C08L27/06C23C14/20C23C14/34
Inventor 刁立鹏陈学刚徐丽娜陈艳艳
Owner 青岛汉兴新材料有限公司
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