This 'antibacterial' plastic makes health more than just a concept
With the normalisation of the new epidemic and a growing concern for healthy lifestyles, instruments and equipment in various industries, including medical, industrial, consumer electronics and public transport, need to be more resistant to bacteria and viruses. This has placed greater demands on the materials used in their manufacture, and 'antibacterial' plastics are receiving increasing attention.
Generally speaking, the smoothness and lack of gaps in plastic products makes it easier for bacteria and viruses adsorbed on their surfaces to retain moisture and survive longer, affecting the health of the user and causing problems such as reduced mechanical properties, changes in electrical conductivity and changes in the appearance of the plastic itself.
"Antimicrobial" plastics are generally modified plastics that have the ability to kill surface bacteria by adding an antimicrobial substance (antimicrobial agent) to the base material, ensuring that the performance of the product is applied while protecting the user. Compared to the usual chemical or physical sterilisation methods, 'antimicrobial' plastics have a longer duration and wider range of antimicrobial activity, and can be used without affecting the performance of the material.
The reasonable choice of materials and the requirements of the prescribed heat treatment for drop-forged parts are important to increase the strength and service life of shaft components and, at the same time, have a large impact on the processing of shafts. Shaft components are generally made of 45 steel, with different heat treatment specifications (e.g. normalised, tempered, quenched, etc.) to obtain strength, toughness and resistance to wear, depending on the working conditions.