In daily life, people are exposed to a variety of harmful microbes that threaten our health all the time. In 1996, a food poisoning incident of primary E. coli occurred in Japan, causing a world-class panic. According to the World Health Organization (WHO), there are more than 20 million people worldwide who die from microbial-related diseases every year. Therefore, with the continuous improvement of the economy and living standards, people pay more and more attention to their own health, and they are eager to obtain textile, building materials, home appliances, sanitary ware and other products with antibacterial function.

In nature, many substances (such as organic compounds with specific genes, some inorganic metal materials and their compounds, some minerals and natural substances) have good bactericidal or microbial inhibiting functions. At present, the antibacterial material mainly refers to the addition of certain antibacterial substances or antibacterial agents to the materials, thereby achieving the antibacterial effect. The specific antibacterial agent is further divided into an inorganic antibacterial agent, an organic antibacterial agent and a polymer antibacterial agent. Among them, the safety of the organic antibacterial agent is unstable, the polymer antibacterial agent has poor heat resistance, is easily hydrolyzed, and has a short effective period, so most products use an inorganic antibacterial agent. The inorganic antibacterial agent mainly utilizes the antibacterial ability of metals such as silver, copper and zinc, and fixes metals such as silver, copper and zinc (or ions thereof) on the surface of porous materials such as fluorspar and silica gel by physical adsorption ion exchange and the like. The antibacterial agent is then added to the corresponding material to obtain an antibacterial material. At present, the main antibacterial materials are compared as follows:

The color of copper ions will affect the aesthetics of the product, while the antibacterial strength of zinc ions is only 1/1000 of that of silver ions. Silver ions have a dominant position in inorganic antibacterial agents because of their superior comprehensive properties. The silver ion antibacterial agent is in the form of a white fine powder, and the heat resistant temperature can reach above 270 ° C, and the carrier thereof is zeolite, ceramic, activated carbon and the like. Sometimes in order to improve synergy, some copper ions and zinc ions are added. The powdered antibacterial agent can be mixed into the masterbatch, the slice and the like to be processed into an antibacterial material by different processes, and the antibacterial agent solution can be made into an antibacterial material by different processing methods such as coating and dipping.

With the rise of big health and consumption upgrading, antibacterial function has become a pursuit goal of traditional enterprises to transform into high-tech products and increase the added value of products. In addition, policy support and improvement of industry standards have promoted the antibacterial materials market. Rapid expansion. As of 2016, the market scale reached 100 billion yuan, a year-on-year increase of 25%. China's antibacterial materials market will maintain a rapid growth rate in the next decade. It is expected that China's antibacterial materials industry will reach a market scale of 200 billion in 2020. Among them, inorganic antibacterial agent as the leading product in antibacterial agent, the sales scale in 2016 has reached 50 billion yuan, the future development speed will completely exceed the organic antibacterial agent and polymer antibacterial agent, with a compound annual growth rate of 40%.