Inorganic high barrier microwave materials, the ne

2022-08-19
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New favorite of food packaging: inorganic high barrier microwave materials

with the acceleration of the pace of life, it can be directly used for microwave heated food bags, but we should not consider packaging as a new hotspot in the development of packaging field at too high and too low prices. At present, aluminum foil and some plastic composites are used. At present, the annual average growth rate of wood plastic composites in China is as high as 30%. The packaging made of wood plastic composites is opaque, not easy to recycle, and cannot be used for microwave processing. The SiOx plated materials developed in recent years can be used as substitutes. SiOx is a thin layer of silicon oxide plated on pet, PA, PP and other substrates. It not only has better barrier property, but also has excellent atmospheric environmental adaptability. Its barrier property is hardly affected by environmental humidity and temperature changes. SiOx coating has high barrier, high microwave permeability and transparency. It can be used for soft packaging of microwave processed food, and can also be made into packaging containers of beverages and edible oil. It has been applied in China. SiOx coating cost is high, mass production technology is not appropriate, and the load can not be improved when it is 2205 liters. However, due to its special performance, it will become an important packaging material in this century

reprinted from: CHEMCHINA

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