Meishen Technology Company
Adhesive is magnesium
oxide in the use of large, normal adhesive enterprises, basically every month
the consumption of magnesium oxide in about 2 tons, which can fully explain
magnesium oxide is the indispensable production raw materials in the adhesive,
we will understand in detail below the adhesive special magnesium oxide effect
how?
Active magnesium oxide is one of the
important raw materials of chloroprene adhesive. The activity of magnesium
oxide reflects the reaction ability of magnesium oxide and chloroprene
adhesive. The higher the activity, the faster the reaction rate with neoprene. Active
magnesium oxide has many functions in chloroprene adhesive, such as curing
crosslinking, acid absorption, anti-coke burning and chelating with resin.
Due to its large specific surface area
and high activity, active magnesium oxide can be used in chloroprene adhesive
to improve its initial adhesion and bonding strength. Improve the transparency
of adhesive. The biggest characteristic can prevent the lamination
precipitation of adhesive.
The activity of active magnesium oxide
is generally expressed by the iodine absorption value (mgI2/g). The iodine
absorption value less than 40(mgI2/g) is low activity, the iodine absorption
value between 40 and 100 is medium activity, and the iodine absorption value
greater than 100 is high activity.
High - quality chloroprene adhesive is
usually made of highly active magnesium oxide. The reaction of active magnesium
oxide with tert-butyl phenolic resin during the chelate reaction requires high
activity of active magnesium oxide (iodine absorption value is higher than
lOOmgI2/g), large specific surface area, fine particles, good dispersion, and
moderate accumulation density (.29/cm3~0.3g/cm3).
High accumulation density, easy to
precipitate; Low accumulation density and harsh operating environment. In
addition, active magnesium oxide moisture absorption should be prevented.
Because water is adsorbed on the surface of
active magnesium oxide, part of the inner and outer surfaces are wetted, which
weakens the activity of active magnesium oxide and affects the chelation
reaction.
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.