Preparation of flap and fan shaped magnesium oxide:
- Preparation of flap-shaped magnesium oxide: precursors of the corresponding morphology are usually prepared first, and then the products are obtained by heat treatment. Using the abundant mineral dolomite as raw material, using two-stage acid leaching method and EDTA-ammonia complexation precipitation reaction combined method, the first preparation of petal-shaped magnesium hydroxide, its heat treatment can be obtained rhombic lamellar petal-shaped magnesium oxide, the petal arrangement is regular, was epitaxial radiating growth, the product purity is greater than 99.8%, the specific surface area of 114 m ² / g, whiteness is higher than 97%. .
- Preparation of fan-shaped magnesium oxide: magnesite production of slurry and hydrogen peroxide as raw materials, first made precursor, and then after the procedure of temperature calcination can be obtained fan-shaped magnesium oxide. The method process is simple, the prepared fan-shaped magnesium oxide has better physical and mechanical properties.
Application areas of petal-like and fan-shaped magnesium oxide:
- Rubber products: petal-shaped and fan-shaped magnesium oxide is used as an excellent filler and reinforcing agent for rubber products, which can improve the quality and strength of rubber products.
- Optical glass products: used in the manufacture of optical glass products, with light weight and good activity.
- Adhesives, paints and daily-use chemicals: it can be used to manufacture adhesives, paints and daily-use chemicals.
- Paper filler: used as filler for paper to improve the quality and strength of paper.
- Plastics industry: It has important use value in the plastics industry as reinforcing agent and filler.
- Food preservative: through the preparation of synthetic magnesium oxide has a strong antibacterial effect, can be used as food preservative.
- Antimicrobial agent: compounded with lactic acid streptococcusin, it can effectively inhibit bacterial growth in milk and extend the shelf life of milk.
- Degradable composites: add petal-shaped and fan-shaped magnesium oxide as antibacterial and fungal agents, to prepare degradable composites with broad-spectrum antibacterial function.