Plasma processor applications in the medical industry

Plasma processor applications in the medical industry:

Strong interfacial forces can enhance the adhesion between two surfaces in chemical compatibility or chemical bonding. High molecular polymer has low or medium energy surface energy, so it is difficult to bond or coating on its surface. The oxygen plasma surface treatment of polypropylene was carried out by plasma processor to increase its surface tension from 29dyn/cm to 72dyn/cm to reach the value of full water adsorption of docking antenna. The surface of other materials can be nitrated, ammoniated or fluorinated by activation treatment. The application of plasma surface modification can form functional groups such as amine group, hydroxyl group, carbonyl group and carboxyl group, and improve the interface adhesion force. Adherence to medical catheters, infusion bags, dialysis filters and other components, as well as to medical injection needles, plastic film bags and medicine bags used to store blood, benefits from the plasmas activation process on the material surface.

Traditional cleaning methods are not perfect, and a thin layer of pollutants is often left after cleaning. However, if the plasma processor activation process is used for cleaning, the weak bond can be easily broken, and the contaminant residues can be removed even on the surface of a very complex geometry. Plasmas remove oil films, microscopic bacteria, or other contaminants that are formed when volatile gases from chemical transformations adhere to the material surface during storage or prefabrication. Plasma discharge cleans injection-molded additives, silica-based compounds, mold release agents, and partially absorbed contaminants, effectively removing them from the surfaces of plastics, metals, and ceramics. Plasmas can also be used to remove plastic additives that interfere with subsequent fabrication without damaging or changing the properties of the substrate during removal. In addition, plasma cleaning technology can also be used to clean the surface of the instrument parts and their sensitive parts or implants.

Plasma improves surface wettability and reduces the Angle of contact of most substrate materials to water or other liquids. It has been proved that the hydrolysis of the material can be reduced after only a few minutes of plasma treatment. Like blood filters or various dialysis filtration membranes, it also includes the microfiltration components of the dialysis filtration system. Plasmas can also give hydrophilic properties to fabrics or non-woven fabrics. The surface wettability of cell culture substrate such as culture dish, rolling bottle, microcarrier and cell membrane could be greatly improved by plasma modification. By regulating surface chemical structure, surface energy and surface charge state, cell growth, protein binding and specific cell adhesion properties can be improved.

Plasma surface treatment manufacturers can also be applied to non-woven fabrics or other fabric industry, can also make it hydrophobic. The hydrophobic cloth has the property of water repellency. When the cloth is immersed in aqueous solution, it will no longer absorb water through capillary effect. The method can also be applied to certain materials to make them hydrophobic, or to make paper, textiles and filter elements hydrophobic. Fluorides such as tetrafluoromethane, sulfur hexafluoride and hydrofluorocarbons can be used to induce hydrogen atoms to be replaced by fluorine atoms on the surface structure, thus forming a structure similar to polytetrafluoroethylene, which makes the surface of materials hydrophobic, chemically inert and highly chemically stable.