Antibacterial polyvinyl chloride plastic and preparation method thereof

Abstract

The invention provides antibacterial polyvinyl chloride plastic. The antibacterial polyvinyl chloride plastic is prepared from the following components in parts by weight: 50 to 80 parts of polyvinyl chloride resin, 30 to 50 parts of calcium carbonate powder, 3 to 5 parts of a plasticizer, 2 to 5 parts of an ACR (Acrylics) auxiliary agent, 1 to 2 parts of stearic acid, 0.8 to 1.5 parts of calcium stearate, 2 to 4 parts of a stabilizer and 2 to 4 parts of nano titanium white. The invention further discloses a preparation method of the antibacterial polyvinyl chloride plastic; the preparation method comprises two steps of mixing and stirring, and carrying out injection molding. According to the antibacterial polyvinyl chloride plastic provided by the invention, raw materials are uniformly stirred and then are directly subjected to the injection molding; high-temperature granulation is not needed and stirring temperature is lower than 100 DEG C, so that a process flow of a plastic product can be simplified and the consumption of energy sources is reduced; high-temperature decomposition of polyvinyl chloride and an additive can be reduced and the performance of the plastic product is ensured. Meanwhile, the added nano titanium white has the characteristics of antibacterial performance, ultraviolet resistance, strong coloring power and the like; the nano titanium white can be used for replacing a whitening agent and the plastic product can be enabled to have good antibacterial performance and weather resistance after the nano titanium white is added.

Description

technical field [0001] The invention belongs to the technical field of polyvinyl chloride materials, in particular to an antibacterial polyvinyl chloride plastic and a preparation method thereof. Background technique [0002] Polyvinyl chloride is a general-purpose resin with large output and excellent comprehensive performance. It has good physical, mechanical, chemical and electrical properties, as well as flame retardancy, transparency, chemical resistance and many other advantages. [0003] Among them, calcium carbonate has been widely used as a filler in the processing of polyvinyl chloride, and has become the main means to reduce the cost of products. At the same time, calcium carbonate can effectively absorb the hydrogen chloride gas released when the material is burned. [0004] The addition of a large amount of inorganic fillers often brings about a significant decline in mechanical properties, especially tensile strength and impact properties, so the amount of calc...

AI Technical Summary

Problems solved by technology

[0004] The addition of a large amount of inorganic fillers often brings about a significant decline in mechanical properties, especially tensile strength and impact properties, so the amount of calcium carbonate added to PVC products is limited