Antibacterial coating for surface layer of medical equipment and preparation method of antibacterial coating

Abstract

The invention discloses antibacterial coating for the surface layer of medical equipment and a preparation method of the antibacterial coating. The antibacterial coating comprises, by weight, 28-35 parts of epoxy resin, 20-30 parts of organic siloxane resin, 8-16 parts of ash-calcium powder, 6-12 parts of calcium silicon, 4-8 parts of talcum powder, 3-6 parts of mica powder, 4-7 parts of castor oil, 3-8 parts of chitosan, 5-10 parts of zeolite powder, 3-6 parts of zirconium phosphate, 2.5-4.3 parts of nano silver, 3-5 parts of nano titanium dioxide, 4-7 parts of nano zinc oxide, 3-6 parts of activated carbon, 2-5 parts of bamboo carbon powder, 2.3-3.8 parts of polyhexamethylene biguanidine hydrochloride, 3.5-5.2 parts of titanate coupling agent, 1.5-2.6 parts of dispersing agent, 2.4-3.6 parts of preservatives, 1.8-3.4 parts of leveling agent, 0.8-2.2 parts of defoaming agent and 15-23 parts of water. The antibacterial coating is good in adhesiveness, less prone to falling and excellent in antibacterial effect.

Description

technical field [0001] The invention relates to the field of antibacterial coatings, in particular to an antibacterial coating for the surface layer of a medical device and a preparation method thereof. Background technique [0002] Medical devices refer to instruments, equipment, utensils, in vitro diagnostic reagents and calibrators, materials, and other similar or related items that are directly or indirectly used on the human body. The effect is mainly obtained through physical methods, not through pharmacological, immunological or metabolic methods, or although these methods are involved, they only play an auxiliary role. The purpose is diagnosis, prevention, monitoring, treatment or mitigation of disease; diagnosis, monitoring, treatment, mitigation or functional compensation of injury; examination, replacement, regulation or support of physiological structures or physiological processes; life support or maintenance; pregnancy control; To provide information for medic...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the anticorrosion of the surface of some medical devices, a layer of paint is usually sprayed on the surface of the medical device as a protective layer, but in the prior art, the paint sprayed on the surface of the medical device is only to prevent the medical device from being corroded by the external environment and beautify the appearance. Function, antibacterial performance is poor, resulting in the reproduction of bacteria on the surface of medical devices, which is easy to cause users to be infected with bacteria and cross-infection