Antibacterial plastic and preparation method thereof

Abstract

The invention belongs to the technical field of functional polymer materials, and especially discloses an antibacterial plastic and a preparation method thereof. The antibacterial plastic is preparedfrom the following raw materials in parts by weight: 90-95 parts of plastic granules, 10-13 parts of glass fibers, 0.5-0.7 parts of oleamide, 0.4-1 parts of a calcium-zinc stabilizer, 0.2-0.8 parts ofa nano-silver antibacterial agent and 0.2-0.5 parts of an antioxidant. The preparation method comprises the following three steps: S1, stirring the plastic granules, the glass fibers, the oleamide, the antioxidant and the calcium-zinc stabilizer in a high-speed stirrer at the speed of 1500 rpm for 10-15 minutes, and discharging the mixture after the mixture is uniform, so as to obtain a mixed material; S2, putting the mixed material into a reactor, performing heating to 130-140 DEG C while stirring, adding a nano-silver antibacterial agent, and continuously heating and stirring for 10-20 minutes to obtain an antibacterial mixed material; and S3, cooling and stirring the antibacterial mixed material obtained in the step S3 until the temperature of the material is 50-80 DEG C, then adding the material into a double-screw extruder, and carrying out extrusion molding to obtain the antibacterial plastic.

Description

technical field [0001] The invention relates to the technical field of functional polymer materials, in particular to an antibacterial plastic and a manufacturing method thereof. Background technique [0002] Plastic is a synthetic polymer compound, which is a material that is polymerized by synthesis or condensation reaction using monomer raw materials. It is composed of synthetic resins and fillers, plasticizers, stabilizers, lubricants, colorants and other additives. Most plastics have the advantages of light weight, chemical stability, no rust, good impact resistance, good insulation, etc. Therefore, plastics are widely used in stationery products, catering supplies, packaging supplies and other fields. The surface of traditional petrochemical-sourced polypropylene plastic tableware is very easy to get dirty after being used or stored for a period of time. The dirt attached to the tableware is difficult to clean, so that it is easy to cause dirt to adhere, and food resid...

AI Technical Summary

Problems solved by technology

The surface of traditional petrochemical-sourced polypropylene plastic tableware is very easy to get dirty after being used or stored for a period of time. The dirt attached to the tableware is difficult to clean, so that it is easy to cause dirt to adhere, and food residues are easy to breed bacteria on the surface. Such as Escherichia coli, bird flu, Staphylococcus aureus, etc., leading to health problems, especially restaurants and other catering industries, are more prone to tableware contamination, affecting the safety and hygiene of people's meals