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Biological research plasma surface treatment equipment to improve the corrosion resistance of metal

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20 Feb,2021

Biological research plasma surface treatment equipment to improve the corrosion resistance of metal:

Once the metal material in the biological body corrodes, the corrosion products generated by the dissolved metal ions will have a bad effect on the human body, so the corrosion must be controlled. Research shows that the metal material itself will not produce allergic reaction to the human body, but because of corrosion and dissolved metal ions or dissolved ions in the form of metal salt and the combination of biological molecules or the form of abrasive powder will cause harm to the human body. In addition, the fracture of metal materials in the human body is usually caused by fatigue and friction fatigue, but these two factors are not simple, in fact, it is caused by corrosion fatigue, and corrosion is closely related. To prevent the toxicity of metal materials in the human body. To improve its safe use and prolong its service life, in the biological environment, biological research plasma surface treatment equipment on the corrosion performance of metal materials is very important.

plasma surface treatment equipment

At present, most of the commonly used clinical medical stainless steel contains nickel (such as medical 316I stainless steel containing nickel for 10 ~ 14). Nickel element is a potential sensitization factor. The precipitation and enrichment of nickel ions in human body due to corrosion or wear can induce toxic effects, cell destruction and inflammatory reactions. Similarly, the Co and Ni elements in medical Cobalt-based alloys also have serious sensitization problems. The V and Al in medical titanium alloy are also harmful to organisms. These problems restrict the application of metal biomaterials. Metallic biomaterials direct contact with the body's tissues, in order to make implant materials, give full play to its function in the body by plasma surface modification on it, for example, in the stainless steel surface by a layer of polymer film, low temperature plasma grafting or spraying a layer of diamond thin films, in cobalt base alloy and titanium alloy surface with biological research of plasma surface treatment equipment of the preparation of plasma grafting TiO2 thin film can effectively prevent the precipitation of nickel ions, improve its corrosion resistance, reduce the abrasion of the product ion precipitation around the implants adverse reactions, greatly improve the safety of biological implant materials use for a long time.

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