1 Introduction of HGM Product and Application
Hollow Glass Microsphere (HGM) is a kind of hollow spherical powder which is inorganic and non-metallic. It is a new kind of lightweight material with wide applications and excellent properties. Its true density is 0.10-0.60 g/cm³ and particle size is between 2-130μm. Due to its advantages of light weight, large volume, low thermal conductivity, high compressive strength, good fluidity and stable chemical properties, Hollow Glass Microsphere is widely used in coatings, rubber, plastics, glass steel, artificial stone, atomic ash, emulsified explosives and oil and gas field mining industry products.
Advantages of high-performance Hollow Glass Microsphere: high filling rate, reduced viscosity, good fluidity to reduce shrinkage and warping of products. Therefore, in the process of composite production, Hollow Glass Microsphere can be well fused with resin.
2.3 Particle size distribution
|
Model number
|
Particle size range (um)
|
|
D10
|
D50
|
D90
|
|
NP10
|
30
|
65
|
115
|
|
NP15
|
30
|
60
|
105
|
|
NP20
|
30
|
60
|
90
|
|
NP25
|
25
|
55
|
90
|
|
NP32
|
25
|
55
|
80
|
|
NP38
|
20
|
45
|
75
|
|
NP40
|
10
|
35
|
75
|
|
NP46
|
10
|
35
|
75
|
|
NP60
|
10
|
30
|
70
|
2.4 Floating rate
|
Model number
|
(g/cm3) True density
|
% Volumetric floatability
|
|
NP10
|
0.10
|
99%
|
|
NP15
|
0.15
|
98%
|
|
NP20
|
0.20
|
98%
|
|
NP25
|
0.25
|
98%
|
|
NP32
|
0.32
|
98%
|
|
NP38
|
0.38
|
98%
|
|
NP40
|
0.40
|
98%
|
|
NP46
|
0.46
|
98%
|
|
NP60
|
0.60
|
98%
|
2.5 Thermal stability
The morphology of Hollow Glass Microsphere remains stable under the temperature of 620℃.
2.6 Chemical Stability
The properties of Hollow Glass Microsphere are basically the same as borosilicate glass. Chemical stability is good, does not react with other substances except for hydrofluoric acid.
2.7 Thermal conductivity
|
Model number
|
(W/(m·K)) Thermal conductivity at 20°C
|
|
NP10
|
0.02-0.06
|
|
NP15
|
0.02-0.06
|
|
NP20
|
0.02-0.06
|
|
NP25
|
0.02-0.06
|
|
NP32
|
0.02-0.06
|
|
NP38
|
0.02-0.06
|
|
NP40
|
0.02-0.06
|
|
NP46
|
0.02-0.06
|
|
NP60
|
0.02-0.06
|
2.8 Oil absorption value
The oil absorption value of alkali lime borosilicate Hollow Glass Microsphere is 0.20-0.65 oil/g。
2.9 pH Value
PH value is between 8.0 ~ 9.5.
3 Appearance
White fluidized powder.
4 Safety information
For more information on product health and safety, please refer to the information and Material Safety Data Sheet before use.
5 Packaging information
5.1 Weight standards and packing for different models
