A kind of preparation method of high-purity and high-dispersion nano-magnesia material

Abstract

The invention discloses a method for preparing a high-purity and high-dispersion nano magnesium oxide material. The method comprises the following steps: taking magnesium sulfate as a raw material, dispersing the magnesium sulfate with a dispersion emulsifier, magnesium oxide quantum points and ammonia water in a high-pressure homogenizer to form an emulsion, performing high-pressure ejection, and at the same time performing laser sintering at a dispersion state. By adopting the method, the technical defects that a nano material is poor in property and popularization and application of nano magnesium oxide are obstructed as a conventional nano magnesium oxide material is easy to agglomerate and relatively poor in purity are solved, and the technical effect that magnesium oxide quantum points as crystal cores grow rapidly in an isotropic manner to form spherical nano magnesium oxide with high dispersity and high purity is achieved. Furthermore, the scheme disclosed by the invention is simple in preparation process, free of pollution and easy in on-scale industrial production.

Description

technical field

[0001] The invention relates to the field of material processing, in particular to a preparation method of a high-purity and high-dispersion nano-magnesia material. Background technique

[0002] Nanomaterials is one of the fields with better growth in the new material industry, and it is also one of the key industries supported by local governments at all levels. Combined with the current policy support and the development of nanomaterials, it is predicted that the market size of nanomaterials in my country will increase significantly in the next five years, with an average annual growth rate of more than 15%. By 2017, the market size of nanomaterials will exceed 7 billion yuan . At present, there are more than 500 nano-material enterprises in my country. Nano-ceramic materials, nano-textile materials, nano-modified coatings and other materials widely used in nano-powders have also been successfully developed, and industrialized production has been initially ...