Antibacterial plastic resistant to high temperature

Abstract

Improved antibacterial plastic is prepared from, by mass, 40-50 parts of plastic body, 7-12 parts of plasticizer, 6-12 parts of stabilizer, 40-45 parts of antibacterial agent, 2-4 parts of silicon carbide and 1-2 parts of graphite powder. The plasticizer is the mixture of dioctyl phthalate and tributyl citrate, the stabilizer is a composite lead salt stabilizer, and the antibacterial agent is the mixture of zinc oxide, copper oxide and lithium carbonate. By the adoption of the inorganic antibacterial agent, bacterial inhibition and resistance can be achieved effectively, the antibacterial rate can reach 80% for certain bacteria, and the effect is durable. Meanwhile, high-strength silicon carbide is mixed in the plastic, so that high temperature resistance is high. Pipes made of the antibacterial plastic can be directly used in a heat supply system.

Description

technical field [0001] The invention belongs to the field of chemical materials, in particular to a high-temperature-resistant antibacterial plastic. Background technique [0002] Antibacterial plastic refers to the addition of some specific antibacterial agents to plastics to make plastics inherently antibacterial. It is a new type of material with antibacterial and bactericidal properties, so that the card will be stained on the surface of plastics and their products within a certain period of time. bacteria to kill or inhibit their reproduction. Compared with conventional chemical and physical disinfection methods, the use of antibacterial plastic sterilization has high efficiency and long-term effect, which is economical and convenient. At present, antibacterial plastics are roughly divided into three categories: inorganic antibacterial agents, organic antibacterial agents and natural antibacterial agents, among which inorganic antibacterial agents have the best antibac...

AI Technical Summary

Problems solved by technology

However, the antibacterial plastics commonly used in the market have the problems of general effect and short action time, which need to be improved

[0003] At the same time, the shortcomings of plastic antibacterial agents are poor high temperature resistance, and the plastic pipes made of this material also have problems of distortion and poor rigidity due to excessive expansion or shrinkage.