Our company has been engaged in the refractory
materials industry for many years, focusing on the in-depth
research, development, production, sales, and service of
refractory materials. Currently, we have established a complete
set of management models, production, and quality control
systems. In recent years, with the rapid development of the
refractory materials industry, the demand for quality and variety
has been continuously increasing.
Cenospheres are grayish-white spherical in
appearance and possess multiple properties such as fine
particles, light weight, high strength, wear resistance, low
thermal conductivity, high refractoriness, thermal insulation,
electrical insulation, and uniform stress and strain. They are
widely used as reinforcing fillers in fields such as refractory
and thermal insulation materials, plastics, coatings, foundry,
ceramics, and petroleum drilling. They can not only effectively
improve product performance or construction results but also
significantly reduce production costs.
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.
