Antimicrobial deodorizing plastic for refrigerators and preparation method thereof

Abstract

The invention relates to an antimicrobial deodorizing plastic for refrigerators and a preparation method thereof, belonging to the field of nano materials. The antimicrobial deodorizing plastic for refrigerators is prepared from the following raw materials in parts by mass: 60-80 parts of base, 2-10 parts of nano silicon dioxide, 0.5-3 parts of flame retardant, 0.1-2 parts of antioxidant, 1-10 parts of toughener, 1-3 parts of dispersing agent and 5-15 parts of antimicrobial agent. The preparation method comprises the following steps: proportionally adding the base, nano silicon dioxide and antimicrobial agent into a high-speed mixer, uniformly mixing, adding the rest of materials, continuing stirring, carrying out extrusion granulation with a double screw extruder, and finally, carrying out injection forming or injection molding to obtain the antimicrobial deodorizing plastic for refrigerators. The plastic has the antimicrobial, deodorizing and anti-aging functions, and is very suitable for refrigerators to keep the food healthy. The preparation method is simple and easy to implement, and has lower facility requests.

Description

technical field [0001] The invention belongs to the field of nanometer materials, and in particular relates to an antibacterial and deodorizing plastic for refrigerators and a preparation method thereof. Background technique [0002] Refrigerator is an indispensable household appliance in people's life nowadays, and people use it to preserve food. Although the low-temperature environment in the refrigerator can inhibit the growth of bacteria at room temperature, some bacteria have strong adaptability. For some low-temperature bacteria such as hepatitis virus, influenza virus, E. coli, Salmonella and other bacteria, the refrigerator temperature of 0-10 ° C The low temperature environment is still a hotbed for its growth and reproduction, and these bacteria that can survive and reproduce in the refrigerator will produce many metabolic gases during their growth and metabolism, such as methane, hydrogen sulfide, methyl mercaptan, methylamine, etc. Gas, when the bacterial colony...

AI Technical Summary

Problems solved by technology

Although the low-temperature environment in the refrigerator can inhibit the growth of bacteria at room temperature, some bacteria have strong adaptability. For some low-temperature bacteria such as hepatitis virus, influenza virus, E. coli, Salmonella and other bacteria, the refrigerator temperature of 0-10 ° C The low temperature environment is still a hotbed for its growth and reproduction, and these bacteria that can survive and reproduce in the refrigerator will produce many metabolic gases during their growth and metabolism, such as methane, hydrogen sulfide, methyl mercaptan, methylamine, etc. Gas, when the bacterial colony grows to a certain size, the gas emitted will be more intense, and the mixture of so many kinds of odorous gases will make the refrigerator produce more unpleasant odors

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