The activity of magnesium oxide mainly depends on two factors: one is the crystallization. The more complete of it, the less defects, and the lower activity. High calcination temperature helps to the magnesium oxide crystallization. The other one is particle size. The smaller of the magnesium oxide particle size, the greater of surface free energy, and the higher of activity.
In China, industrial magnesium oxide roughly can be divided into active magnesium oxide and light magnesium oxide. About the application, active magnesium oxide is widely used in glass fiber reinforced plastic, fluorine rubber, medical rubber stopper, adhesives and other industries. In which, the adhesive industry mainly including neoprene adhesive, such as strongadhesive, contact glue, A90 neoprene glue, and common seen in the market of shoes material and decorative materials. What is more, there are some requirements for the activity of magnesium oxide. For example, the activity of magnesium oxide for glass fiber reinforced plastic≥60-120, the activity of magnesium oxide for fluorine rubber≥120-150, the activity of magnesium oxide for medical rubber stopper≥150, the activity of magnesium oxide for adhesive≥150. According to the different manufacturers, formula and production process, Hebei Meishen Technology Co.,LTD can custom made the most suitable magnesium oxide kinds for you !