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Method for preparing medical high molecular material by magnetron sputtering technology

A polymer material, magnetron sputtering technology, applied in the field of medical polymer material processing, to achieve the effect of prolonged antibacterial effect, broad-spectrum anti-infection performance, and simple operation

Active Publication Date: 2012-03-28
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the application of magnetron sputtering in the field of medical polymer materials.

Method used

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  • Method for preparing medical high molecular material by magnetron sputtering technology
  • Method for preparing medical high molecular material by magnetron sputtering technology
  • Method for preparing medical high molecular material by magnetron sputtering technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation of medical polymer materials by magnetron sputtering technology includes the following steps:

[0040]Move the PE non-woven wound dressing with a thickness of 1 μm through the processing table in the vacuum chamber of the magnetron sputtering equipment at 4 m / min, and install a silver target on the target table. The PE non-woven wound dressing and the magnetic The distance between the sputtering targets is 6cm, and then the vacuum chamber of the equipment is sealed, and the vacuum is evacuated to 1×10 -5 At Pa, nitrogen gas of 20.0 SCCM and argon gas of 20.0 SCCM are introduced to finally maintain the working vacuum at about 0.5 Pa, turn on the power of the processing table, control the temperature of the processing table at about 50°C, and turn on the Hall plasma source with a power of 300W, turn on the pulse current of the target platform, the magnitude is 1A, after the treatment, turn off the power supply of the treatment platform and the target platf...

Embodiment 2

[0043] The preparation of medical polymer materials by magnetron sputtering technology includes the following steps:

[0044] Fix the PLA film with a thickness of 0.5 μm on the processing table in the vacuum chamber of the magnetron sputtering equipment, install the silver target and the zinc target on the target table, the PLA film and the magnetron sputtering target The distance is 20cm, then seal the equipment vacuum cavity, and evacuate to 5×10 -4 At Pa, feed 10.0SCCM of ammonia gas, 10.0SCCM of acetic acid gas and 20.0SCCM of argon gas to finally maintain the working vacuum at about 10Pa, turn on the power of the processing table, control the temperature of the processing table at about 60°C, and turn on the radio frequency plasma Body source, the power is 500W, after 5 minutes of treatment, turn on the direct current of the target platform, the size is 10A, after 5 seconds of treatment, turn off the power supply of the treatment platform, target platform and radio freque...

Embodiment 3

[0047] The preparation of medical polymer materials by magnetron sputtering technology includes the following steps:

[0048] Move the PA-66 artificial intervertebral body support body through the processing table in the vacuum chamber of the magnetron sputtering equipment at 2 m / min, and install a silver target, a zinc target and a phosphorus target on the target table, PA The distance between the -66 artificial vertebral body support and the magnetron sputtering target is 5.0cm, and then the vacuum chamber of the equipment is sealed and evacuated to 5×10 -4 Pa, through 20.0SCCM of nitrogen, 5.0SCCM of acetylene gas and 15.0SCCM of argon, and finally maintain the working vacuum at 1×10 -1 At about Pa, turn on the power of the processing table, control the temperature of the processing table at about 120°C, turn on the Hall plasma source, the power is 800W, turn on the pulse current of the target stage, the magnitude is 200mA, after the processing is completed, turn off the ta...

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Abstract

The invention discloses a method for preparing a medical high molecular material by a magnetron sputtering technology. The method comprises the following steps of: fixing or moving a medical high molecular material to or through a treatment bench in a vacuum chamber of magnetron sputtering equipment, pumping vacuum, introducing gas, switching on power supplies of the treatment bench and a target bench, and treating to obtain the medical high molecular material with high surface infection resistance and biological compatibility. The method is simple in operation and does not affect the physical-chemical structures of the material, the treated high molecular material has a stable surface structure and long-acting broad-spectrum infection resistance, and the cell compatibility of the treated high molecular material is not lower than the inherent biological compatibility of the material.

Description

technical field [0001] The invention relates to a processing method for medical polymer materials, in particular to a method for preparing medical polymer materials with high infection resistance and biocompatibility by using magnetron sputtering technology. Background technique [0002] Medical polymer materials such as wound dressings, burn dressings, wound dressings, surgical gowns, patient clothes, and medical polymer interventional devices are all made of polyester polymers, polyolefin polymers, and polysaccharides. Polymers, polyurethanes, cellulose and other polymers are developed. In actual use, these materials are in contact with wounds, scalded skin, and internal tissues, but they often cause infection or inflammation in wounds or tissues due to their lack of anti-infection properties and poor biocompatibility, which further leads to wound healing and tissue regeneration difficulties. For example, the wound dressing is a polyethylene non-woven material. In additi...

Claims

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Application Information

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IPC IPC(8): D06M10/06C08J7/00
Inventor 张维王怀雨季君晖
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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