Thermochromic antibacterial polypropylene composite material for see-through rice cooker and preparation method

Abstract

The invention discloses a thermochromic antibacterial polypropylene composite material for a see-through rice cooker and a preparation method. The composite material comprises, by mass, 70-90% of high-crystallized homo-polypropylene, 0-25% of transparent filler masterbatches, 0.5-10% of antibacterial agent masterbatches, 0.5-10% of mildewproof agent masterbatches, 0.2-2% of thermosensitive chromotropic paint, 0.1-10% of antistatic masterbatches, 0.2-0.4% of antioxidants and 0.2-0.5% of lubricating agents. The components are mixed evenly and then added in a parallel twin screw extruder to be blended, melted and extruded to obtain the composite material. The composite material has the excellent comprehensive performances of resisting high temperature and being antibacterial, mildewproof, antistatic and thermochromic and the like, and can be applied to the field of small household appliances such as rice cookers, pressure cookers, induction cookers and soybean milk machines.

Description

technical field [0001] The invention relates to a polymer composite material, in particular to an antibacterial polypropylene composite material with temperature-sensitive discoloration for a see-through electric rice cooker and a preparation method thereof, belonging to the technical field of modified plastics. Background technique [0002] Polypropylene is non-toxic, odorless, and has low density. It can be used for tableware. It is one of the five general-purpose plastics and is widely used in household appliances, automobiles, and daily necessities. [0003] At present, most of the common rice cooker shells on the market are made of opaque modified polypropylene composite materials. When the rice cooker is working, the lid covers the body, making it difficult for users to check the cooking status of the food in the pot. Open the lid to check However, there are the following disadvantages: one is that the high-temperature steam is easy to burn the user, the other is that ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the common rice cooker shells on the market are made of opaque modified polypropylene composite materials. When the rice cooker is working, the lid covers the body, making it difficult for users to check the cooking status of the food in the pot. Open the lid to check However, there are the following disadvantages: first, high-temperature steam is easy to burn the user; second, part of the heat loss affects the heating efficiency; third, part of the nutrients are released with the steam and affect the taste of food

[0005] In addition, when polypropylene material is used as a rice cooker shell, it is easy to be contaminated with oil on the surface during daily use, and it is easy to grow bacteria and mold in a humid environment.

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