Meishen Technology Company
When
the dosage of magnesium oxide is below 200, the thermal conductivity and
tensile strength of the silicone rubber filled with magnesium oxide with small
particle size are greater than that of the silicone rubber filled with
magnesium oxide with large particle size.
On the other hand, the elongation at
break of silicone rubber is contrary to the maximum l of the thermal
conductivity of silicone rubber when the ratio of mg //I particle size is
100/100. The addition of an appropriate amount of silane coupling agent is
conducive to improving the thermal conductivity of silicone rubber, and the
optimal dosage is about 0.5% of the dosage of mg //I particle size.
The heat-conducting filler is alumina
or mixed particles of alumina, magnesium oxide and boron nitride, with good
heat-conducting and insulating properties. Due to its flexibility, it can be
closely fitted between power devices and heat-dissipating aluminum/copper sheet
or machine shell, thus achieving good heat conduction and heat dissipation. At
present, it has been directly used in microprocessors, DC converters, relays,
UPS, automotive electronics, projection lamps and other electronic products.
At present, more research and good
thermal conductivity and insulation properties of thermal insulation rubber
packing aluminum oxide, silicon nitride, etc. The thermal conductivity of
magnesium oxide is slightly better than that of alumina and the rubber pad with
higher thermal conductivity can be prepared.
As an excellent thermal insulating
rubber packing, its electrical properties are inferior to alumina, but it still
meets the requirements of insulating rubber packing for common electronic and
electrical products. This work USES mixed silicone rubber as the matrix and
magnesium oxide as the thermal conductive filler to prepare the flexible
thermal conductive adhesive pad, and its properties are studied.
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.
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Email:admin@mgochem.com
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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.