As a new multi-functional inorganic material, magnesium oxide has broad application prospects in many fields, with the destruction of human living environment, new bacteria and germs emerge, human beings urgently need a new and efficient antibacterial materials, nanomagnesium oxide in the field of antibacterial show edifying unique advantages.
The research shows that the high concentration and high reactive oxygen ions present on the surface of the nano-magnesium oxide have strong oxidation, which can destroy the peptide bond structure of the cell membrane wall of the bacteria, thus killing the bacteria quickly.
In addition, nano-magnesium oxide particles can produce destructive adsorption, which can also destroy the cell membranes of bacteria. Such an antibacterial mechanism can overcome the shortage of uv radiation for silver antimicrobial agents that require slow, color-changing and titanium dioxide antimicrobials.
The object of this study is the study of nano-magnesium hydroxide prepared by liquid phase precipitation method as the precursor body, and the study of nano-magnesium oxide calcination in antibacterial properties by the nano-magnesium hydroxide calcin.
The purity of magnesium oxide prepared by this process can reach more than 99.6%, the average particle size is less than 40 nanometers, the particle size is evenly distributed, easy to disperse, the antibacterial rate of E. coli and Staphylococcus aureus reaches more than 99.9%, and has a wide range of applications in the field of broad-spectrum antibacterial.
Applications in the field of coatings
With the coating as the carrier, by adding 2%-5% of the nano-magnesium oxide, improve the anti-bacterial, flame retardant, hydrophobic coating.
Applications in the field of plastics
By adding nanomagnesium oxide to plastics, the antibacterial rate of plastic products and the strength of plastics can be improved.
Applications in ceramics
Through the spraying of ceramic surface, sintered, improve the flatness and antibacterial properties of the ceramic surface.
Applications in the field of textiles
Through the addition of nanomagnesium oxide in the fabric fiber, the flame retardant, antibacterial, hydrophobic and wear resistance of the fabric can be improved, which can solve the problem of bacterial and stain erosion of textiles. Widely used in military and civilian textilefields.
Conclusion
At present, we have started relatively late in the research on antibacterial materials, but also the application of research and development is still in the initial stage, behind Europe and the United States and Japan and other countries, nano-magnesium oxide in the excellent performance of antibacterial properties, will become the new favorite antibacterial materials, for China's anti-bacterial materials in the field of corner overtaking provides a good material.