Articles
Product Characteristics And Industrial Applications Of Reactive Magnesium Oxide
by Hu Yanchao Magnesium oxide manufacturers in ChinaSome 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, with irregular particles or subspherical particles and lamellar
crystals in microscopic form.
Because
of its high dispersibility and high activity, it can even be made into fibrous
magnesium oxide, which is easy to be compounded with polymers and other
materials.
Because
the superfine magnesium oxide has a high degree of dispersion, it can also be
used as a filler for paint, cosmetics, paper, as well as a reinforcing agent
and filler for rubber and plastics, a variety of electronic materials such as
auxiliary materials.
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, the lower the activity.
The
higher the calcining 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,
the greater the surface free energy and the higher the activity.
In
China, industrial magnesium oxide is divided into active magnesium oxide and
light magnesium oxide.
In
industry, active magnesium oxide is mainly used in FRP, fluorine rubber,
medical rubber plug, adhesive and other industries.
Active
magnesium oxide can be used in the adhesive industry, mainly used in the
neoprene rubber adhesive, common glue, universal glue, A90 neoprene glue, most
appear in the shoe material market and decorative materials market.
Among
them, the activity value of magnesium oxide for FRP is ≥60-120, the activity
value of magnesium oxide for fluorine rubber is ≥120-150, the activity value of
magnesium oxide for medical rubber plug is ≥150, and the activity value of
magnesium oxide for adhesive is ≥150.
At
the same time, Meishen company can also be customized according to different
manufacturers, different formulations, different processes, the ratio of
suitable special magnesium oxide.
Ultrafine
highly active magnesium oxide is a new type of fine inorganic material with
high function.
In
general, ultrafine powder refers to a collection of nanoparticles ranging in
size from 1 to 2000nm.
Due
to the fine particles, 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 polymer or other materials and has good
microwave absorption.
Because
ultrafine powder magnesium oxide can be sintered at low temperature without the
use of sintering additives, high density fine crystal ceramics can be made.
Therefore,
ultrafine magnesium oxide powder is expected to be developed into a
sophisticated material that can be used under harsh conditions such as high
corrosion and high temperature.
Secondly,
ultrafine magnesium oxide powder can also be used as stabilizer and sintering
assistant for other nanoparticles such as iron oxide, alumina, zirconia, etc.,
and then high quality nanometer phase ceramics can be made.
At
the same time, it can also be used as an auxiliary material for various
electronic materials.
In
addition, the absorption of iodine value is usually higher than 120mg/g of
magnesium oxide divided into high active magnesium oxide, mainly used for
fluoro rubber, butyl rubber, neoprene rubber, nitrile rubber activator and
promoter, but also adhesive, paint, plastic, paper filler.
The
surface chemical activity of ultrafine highly active magnesium oxide is high,
and its adsorbability is strong.
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About Hu Yanchao 
Magnesium oxide manufacturers in China
86 connections, 1 recommendations, 286 honor points.Joined APSense since, July 4th, 2014, From xingtai, China.
Created on Apr 26th 2020 20:54. Viewed 347 times.
