Nano antibacterial powdered paint and its micro-suspension one-step preparation therefor

Abstract

The invention relates to a manufacturing domain of nanopowder composite, especially to a nano antibacterial powder coating and one-step manufacturing method of microsuspension. The nano antibacterial powder coating consists of water, mixture monomer, pigment, surface processing agent, nanometre-sized inorganic antiseptic particle and auxiliary agent. The method comprises dispersing components such as water and suspending disperser by ultra-audio wave, then performing dispersion by high-shear emulsifier to prepare the predispersion; afterwards, adding the other components into polymerization kettle according to priority, after agitation and heating, adding the said predispersion at one time, reacting at a constant temperature, then cooling, discharge, centrifugally dewatering and drying to obtain the product. The invention solves the problems that the nanoparticles are easy to aggregate inside the organic polymer existed in present technology and the manufacturing engineering of the traditional powder coating is difficult, and has advantages that the process flow is short, the equipment investment is low, and can save working hours and energy resource, is of no dust pollution, the prepared powder coating particles is of regular shape, and has better levelling property in application.

Description

technical field

[0001] The invention relates to the field of manufacturing nano powder composite materials, in particular to a nano antibacterial powder coating and a microsuspension one-step manufacturing method thereof. Background technique

[0002] In recent years, with the extensive use of antibiotics and chemical drugs and the aggravation of environmental pollution, bacteria and viruses are causing more and more serious harm to humans. From the 0-157 Escherichia coli infection that broke out in a large area in Japan in 1996 to today's "atypical pneumonia" and "bird flu", all of them have proved to us the urgency and severity of resisting the harm of bacteria and viruses. To effectively prevent the growth of bacteria, the use of antibacterial materials is the simplest and most effective method. Therefore, the use of antibacterial coatings for coatings that are closely related to people's lives is of great significance for protecting human health and reducing diseases. P...