Hollow glass microspheres for anti-corrosion coatings
microspheres glass hollow is a kind of hollow spherical powdered ultra-light inorganic non-metallic material, its true density is 0.15-0.65g/cm³, range is 2-120μm, wall thickness is 1-2μm, compressive strength is 3 Between -125MPa, it has the characteristics of light weight, large volume, low resonance coefficient, high compressive strength and good fluidity. It is a product filler and decompression agent for paints, coatings, rubber, modified plastics, glass fiber reinforced plastics, artificial stone, putty, etc.; the oil and gas field mining industry can produce high-strength low-density cement slurry and low-pressure cement slurry with its high compression resistance and low density performance. Density decomposition fluid.
DATA OF microspheres glass hollow
CHEMICAL DATA
SiO2 | 58-71% |
Na2CO3 | 12-25% |
B2O3 | 3-12% |
AL2O3 | 0-10% |
CaO | 0.2-1.0% |
Fe2O3 | 0-0.5% |
MgO | 0-0.05% |
PHYSICAL DATA
| MODEL | TRUE DENSITY (g/cm³) | BULK DENSITY (g/cm³) | COMPRESSIVE STRENGTH （Mpa/Psi） | D50 （µm） | D90 （µm） | LOOSE BAG （KG） |
| SC18 | 0.17-0.20 | 0.09-0.12 | 4 / 500 | 65 | 110 | 125 |
| SC20 | 0.20-0.22 | 0.10-0.12 | 4 / 500 | 65 | 110 | 125 |
| SC22 | 0.21-0.24 | 0.11-0.13 | 5 / 750 | 65 | 100 | 125 |
| SC25 | 0.24-0.27 | 0.13-0.15 | 5 / 750 | 65 | 100 | 150 |
| SC28 | 0.27-0.30 | 0.14-0.17 | 10 / 1500 | 55 | 85 | 180 |
| SC30 | 0.29-0.32 | 0.15-0.18 | 10 / 1500 | 55 | 85 | 180 |
| SC32 | 0.31-0.33 | 0.17-0.19 | 14 / 2000 | 45 | 80 | 200 |
| SC35 | 0.33-0.37 | 0.18-0.21 | 21 / 3000 | 40 | 70 | 250 |
| SC38 | 0.37-0.39 | 0.19-0.22 | 38/ 5500 | 40 | 65 | 250 |
| SC40 | 0.39-0.42 | 0.19-0.23 | 28 / 4000 | 40 | 70 | 250 |
| SC42 | 0.41-0.44 | 0.21-0.24 | 55 / 8000 | 40 | 60 | 270 |
| SC46 | 0.44-0.48 | 0.23-0.26 | 41 / 6000 | 40 | 70 | 300 |
| SC50 | 0.48-0.52 | 0.25-0.27 | 55 / 8000 | 40 | 60 | 320 |
| SC55 | 0.53-0.55 | 0.27-0.29 | 69 / 10000 | 40 | 60 | 350 |
| SC60 | 0.58-0.62 | 0.29-0.34 | 83 / 12000 | 40 | 65 | 400 |
| SC60S | 0.58-0.63 | 0.30-0.34 | 125 / 18000 | 35 | 55 | 400 |
| SS38 | 0.37-0.39 | 0.19-0.22 | 38/ 5500 | 30 | 50 | 250 |
| SS42 | 0.40-0.44 | 0.21-0.24 | 55 / 8000 | 25 | 40 | 250 |
| SS46 | 0.44-0.48 | 0.22-0.25 | 110 / 16000 | 20 | 30 | 300 |
| SS60 | 0.58-0.62 | 0.27-0.30 | 193/ 28000 | 16 | 25 | 400 |
| SS65 | 0.63-0.67 | 0.25-0.27 | 207 / 30000 | 13 | 20 | 430 |
| SS70 | 0.68-0.72 | 0.25-0.27 | 207 / 30000 | 10 | 15 | 460 |
ADVANTAGES OF microspheres glass hollow
Color: pure white. It can be widely used in products that require appearance color.
Light weight and large volume
The density of hollow glass microspheres is about one-tenth of the density of traditional filler particles. After filling, it can greatly reduce the basis weight of the product, replace and save more production resin, and reduce product cost.
High dispersion and good fluidity
Since hollow glass microspheres are tiny spheres, they have better fluidity in liquid resin than fillers in the form of flakes, needles or irregular shapes, so the mold filling performance is excellent. More importantly, the small microbeads are isotropic, so they will not cause the inconsistency of shrinkage of different parts due to orientation, ensuring the product’s dimensional stability and no warpage.
Insulation, sound insulation, insulation, low water absorption
The inside of the hollow glass beads is a thin gas, so it has the characteristics of sound insulation and heat insulation, and is an excellent filler for various heat insulation and sound insulation products. The thermal insulation properties of hollow glass microspheres can also be used to protect the product from thermal shock caused by alternating changes between rapid heating and rapid cooling conditions. The high electrical resistivity and the extremely low water absorption make it widely used in the production of cable insulation materials.
Low oil absorption
The particles of the sphere determine its minimum specific surface area and low oil absorption rate. The amount of resin can be greatly reduced during use. Even under the premise of high addition, the viscosity will not increase much, greatly improving the production operating conditions. Increase production efficiency by 10%-20%.
