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nanomaterials
发布时间:2020-07-14 15:00:30 点击次数:96

Nano-structured materials are referred to as nano-materials for short. In a broad sense, they refer to the general term of ultra-fine particle materials with at least one dimension in the nano-scale range in three-dimensional space. According to the definition adopted by the European Commission on October 18, 2011, nanomaterials are powdered or agglomerated natural or artificial materials composed of basic particles. One or more three-dimensional dimensions of this basic particle range from 1 nanometer to 100 Between nanometers, and the total number of this basic particle accounts for more than 50% of the total number of all particles in the entire material. Nanomaterials have certain uniqueness. When the size of the material is small to a certain extent, quantum mechanics must be used instead of traditional mechanics to describe its behavior. When the particle size of the powder drops from 10 microns to 10 nanometers, its particle size Although it is changed to 1000 times, when converted into volume, it will be as large as 10 to the 9th power, so there will be obvious differences in the behavior of the two.