Characteristics & Application Of Active Magnesium Oxide
Some
indexes of active magnesium oxide are different from those of ordinary
magnesium oxide.
For example, active magnesium oxide
should have a suitable particle size distribution, and its microscopic
morphology should be irregular particles or near-spherical particles and flaky
crystals. Because of its high dispersibility and high activity, it can even be
made into fibrous magnesium oxide, which is easy to be combined with polymers
and other materials.
Because the ultramicron magnesium
oxide has the high dispersibility, also may use as the paint, the cosmetics,
the paper filler, as well as the rubber and the plastic reinforcement and the
filler, each kind of electronic material auxiliary material and so on. The
activity of magnesium oxide mainly depends on two factors: one is the
crystallization of magnesium oxide. The more complete the crystallization, the
fewer defects, the more stable and the lower the activity.
Moreover, high calcination temperature
is conducive to the crystallization of magnesium oxide. The higher the
calcination temperature, the more complete the crystallization of magnesium
oxide and the lower the activity. The second is the particle size of magnesium
oxide. The smaller the particle size is, the greater the surface free energy is
and the higher the activity is.
In China, industrial magnesium oxide
is roughly divided into active magnesium oxide and light magnesium oxide. In
industry, the active magnesium oxide is mainly used in fiberglass,
fluororubber, medical rubber plug, adhesive and other industries.
Active magnesium oxide can be used in
the adhesive industry, mainly used in neoprene adhesives, common rubber,
all-purpose glue, A90 neoprene glue, etc., mostly appear in the shoe material
market and decorative material market. Among them, the activity value of
magnesium oxide for FRP is =60-120, that for fluororubber is =120-150, that for
medical rubber plug is =150, and that for adhesive is =150.
At the same time, Magnesium God
company can also according to different manufacturers, different formula,
different process for professional customization, the proportion of suitable
special magnesium oxide. Ultrafine high active magnesium oxide is a new type of
high functional fine inorganic material.
In general, ultrafine powders refer to
aggregates of nanoparticles with particle sizes ranging from 1 to 2000nm. Because
the particles are fine, it has the special properties of light, electricity,
heat, chemistry and mechanics, which are different from the bulk materials.
Ultrafine magnesium oxide can be
combined with polymers or other materials and has good microwave absorption
performance. The ultrafine powder magnesium oxide can be sintered at low
temperature without the use of sintering assistant, and the high density fine
crystal ceramics can be made. Therefore, the ultrafine magnesium oxide powder
is expected to be developed into a cutting-edge material that can be used in the
harsh conditions of high corrosion and high temperature.
Secondly, ultrafine magnesium oxide
powder can also be used as a stabilizer and sintering assistant for other
nanoparticles such as iron oxide, alumina and zirconia, so as to make high
quality nanometer phase ceramics.
At the same time, it can also be used
as an auxiliary material for various electronic materials. In addition,
generally, magnesium oxide with iodine absorption value higher than 120mg/g is
classified as highly active magnesium oxide, which is mainly used as activator
and promoter for fluororubber, butyl rubber, neoprene rubber, nitrile rubber,
and also as filler for adhesives, paints, plastics and paper. Ultra-fine and
highly active magnesium oxide has high surface chemical activity and strong
adsorbability, so it can be used as a highly effective dissociation adsorbent
to adsorb toxic chemicals.
Meishen is the world's leading
producer of magnesium oxide, Magnesium oxide is an oxide of magnesium, an ionic
compound. It is a white solid at room temperature. Magnesium oxide exists in
the form of periclase in nature and is a raw material for magnesium smelting.
Magnesium oxide is white or light yellow powder, odorless, tasteless, this
product is insoluble in water and ethanol, melting point 2852 ° C, boiling
point 3600 ° C, magnesium oxide has high refractory insulation properties. It
can be converted into crystal by burning at a temperature above 1000 ° C. If it
rises above 1500 ° C, it will form a burnt magnesia or sintered magnesia.
Magnesium oxide can be used in the
manufacture of metallurgy, smelting, advanced magnesia bricks, refractory
materials and moisturizing materials. It is also widely used in rubber, rubber
sheet, rubber products, pharmaceutical industry, food industry, plastic sheet
accelerator, glass fiber reinforced plastics and Surface coating of silicon
steel sheet, paper production, steel ball polishing, leather treatment, insulation
materials, grease, dyes, ceramics, desiccant, resin, flame retardant, etc.
Hebei Meishen Chemical Technology
Group is the main magnesium oxide producer in the world. It is also the largest
magnesium salt producer in China and has won the ISO9002 quality system
certification. It also has GMP-Certification.
With
rich experience in the research, development, production, management and
operation of magnesium oxide products, Meishen Group has always attached great
importance to the research and development of new products and strict
requirements on product quality. Meishen has a high-level sales team. The
business covers more than 20 countries and regions around the world. It is
widely welcomed by new and old customers.
Tell:+8613833967259
Email:admin@mgochem.com
Wesite:http://www.72meihouwang.com/
Meishen
has a high-level sales team. The business covers more than 20 countries and
regions around the world. It is widely welcomed by new and old customers.