I.Cenosphere's chemical
composition：
|
composition
|
SiO₂
|
Al₂O₃
|
Fe₂O₃
|
SO₃
|
|
content（%）
|
****5
|
****6
|
0.**1.5
|
0.**0.2
|
II.Cenosphere's physical
properties：
|
item
|
test specification
|
item
|
Test specification
|
|
shape
|
High flowability
spherical powder
|
Granularity（mesh）
|
*****0mesh
|
|
color
|
Light grayish
white
|
Moh's hardness
|
**7
|
|
True
density（g/ml）
|
0.**1.1
|
Melting
point（℃）
|
≥***0
|
|
stacking
density（g/cm³）
|
0.***0.*6
|
refractoriness（℃）
|
********0
|
III.
Characteristics of Cenospheres:
1.High
refractoriness:The
main chemical components of cenospheres are oxides of silicon
and aluminum. Since the melting point of silicon dioxide is
as high as ***5 degrees Celsius, and the melting point of
aluminum trioxide is ***0 degrees Celsius, both are high
refractory substances. Therefore, cenospheres have extremely
high refractoriness.
2.Lightweight,
thermal insulation: Cenospheres
have thin walls and hollow interiors, with a semi-vacuum
inside the cavity, resulting in extremely slow and minimal
heat conduction. They are not only lightweight but also have
excellent thermal insulation
properties.
3.High
hardness and strength: Because
cenospheres are hard glass bodies formed by silicon-aluminum
oxide mineral phases (quartz and mullite), their hardness can
reach Mohs **7, and their static pressure strength is as high
as *****0MPa, thus having high
strength.
4.Insulating
and non-conductive: The
resistance of general insulators decreases with the increase
of temperature, but high-strength cenospheres are the
opposite, with resistance increasing as temperature rises.
This advantage is not possessed by other insulating
materials. Therefore, it can be made into insulating
materials with excellent
performance.
5.Fine
particle size and large specific surface
area:The
naturally formed particle size of high-strength cenospheres
is *****5 microns. The specific surface area is ******0
g/cm², which is equivalent to that of
cement. It can be used directly without grinding. The
fineness can meet the needs of various
products.
IV. Uses
of Cenospheres:
1.Refractory
and thermal insulation
materials: Such
as lightweight sintered refractory bricks, lightweight
non-fired refractory bricks, casting insulation risers,
pipeline insulation shells, fireproof and thermal insulation
coatings, thermal insulation pastes, composite thermal
insulation dry powders, lightweight thermal insulation and
wear-resistant glass fiber reinforced
plastics.
2.Building
materials: Building
decoration, high-grade pavement materials, roof waterproof
and thermal insulation coatings, modified asphalt,
etc.
3.Petroleum
industry: Oilfield
cementing, pipeline anti-corrosion and insulation, offshore
oilfields, floating devices, oil well drilling mud lightening
agents, oil and gas transmission pipelines,
etc.
4.Insulating
materials; Plastic activated fillers, high-temperature and
high-pressure insulators, etc.
5.Coating
industry: Paints,
inks, adhesives, stealth coatings, insulating paints,
anti-corrosion paints, floor paints, high-temperature
resistant and fireproof paints, interior and exterior wall
coatings, thermal insulation coatings, floor paints,
automotive putties, atomic ash, etc.
6.Plastic
industry: Such
as automotive trim parts, instrument panels, home appliance
casings, fans, speakers, lamp assemblies, plates,
etc.
7.Glass
fiber reinforced plastic products: Various glass fiber
reinforced plastic products, artificial marble, glass fiber
reinforced plastic ships, handicrafts,
etc.
8.Encapsulation
materials: Transformer potting materials, electronic
encapsulation materials, etc.
