Antibacterial plastic masterbatch and preparation method thereof

Abstract

The invention discloses an antibacterial plastic masterbatch and a preparation method thereof. The antibacterial plastic masterbatch is composed of the following ingredients by mass: 100-120 parts of plastic resin, 20-30 parts of a natural antibacterial agent, 30-40 parts of cumin seed oil, 12-19 parts of cellulose, 3-11 parts of polyethylene, 2-9 parts of polymethyl phenolic aldehyde, 4-14 parts of polypropylene, 5-15 parts of wollastonite, 20-25 parts of inorganic pigment toner, 15-30 parts of a nano titanium dioxide antibacterial agent, 12-16 parts of a hydroxy compound, 9-17 parts of sodium tetraborate, 7-12 parts of glass fiber, 9-15 parts of liquid paraffin, 12-15 parts of an antioxidant, 8-13 parts of a dispersant, 10-17 parts of a lubricant, 5-13 parts of polycarbodiimide, 10-13 parts of an ultraviolet shielding agent, 10-15 parts of a toughening agent, and 20-25 parts of a flame retardant. The antibacterial plastic masterbatch provided by the invention has the advantages of broad antibacterial spectrum, lasting antibacterial effect, strong antibacterial properties, good thermal stability, high temperature resistance, difficult discoloration, and good compatibility and dispersibility.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to an antibacterial plastic masterbatch and a preparation method thereof. Background technique [0002] At present, plastic products play a very important role in people's daily life and industrial and agricultural production. In order to make plastic products more widely used, people often add antibacterial agents to the plastic masterbatches used to prepare plastic products to obtain antibacterial plastic products. The antibacterial agents added at present are generally based on organic antibacterial agents and inorganic antibacterial agents. Due to the low decomposition temperature of organic antibacterial agents, the possibility of decomposition during processing is high, which may cause pollution to the environment; adding inorganic antibacterial agents to plastics can avoid the above disadvantages, but the existing inorganic antibacterial agents have large...

AI Technical Summary

Problems solved by technology

Due to the low decomposition temperature of organic antibacterial agents, the possibility of decomposition during processing is high, which may cause pollution to the environment; adding inorganic antibacterial agents to plastics can avoid the above disadvantages, but the existing inorganic antibacterial agents have large particle sizes, which will reduce the surface finish of the product. The mechanical properties have declined. At the same time, from the published technical patents and literature, there are occasional interruptions in the production process of batching, mixing or extrusion, which is not continuous large-scale industrial production.