The special needle like structure and unique physical and mechanical performance of the high-end friction material series of wollastonite fiber greatly enhance the friction resistance and heat resistance of the friction material. When the product is filled into the friction material, it can improve its friction flexibility and stability.
TYPICAL PHYSICAL PROPERTIES /TYPICAL VALUE
Morphology – Fiber/Acicular
Appearance – White
Whiteness % 80
Refractive index – 1.67
Gravity – 2.79
Bulk Density(Loose) g/ml 0.40
Minus 100 U.S. Mesh Screen % 100.00
Hardness(Moh’s Scale) – 4.5-5.0
Solubility in water g/100ml 0.0095
Melting point ℃ 1540
Coefficient of expansion – 6.5×10-6
FIBER CHARACTERISTICS /TYPICAL VALUE
D10 Laser-diffraction Particle Size μm 5.107
D50 Laser-diffraction Particle Size μm 30.26
D90 Laser-diffraction Particle Size μm 95.42
Average Fiber Length μm 410.1
Average Fiber Diameter μm 22.4
Average Aspect Ratio(L/D) μm 18:1
CHEMICAL PROPERTIES /TYPICAL VALUE
SiO2 % 49.63
CaO % 44.70
Fe2O3 % 0.63
Al2O3 % 0.42
TiO2 % 0.01
MgO % 0.27
MnO % 0.33
Na2O % 0.04
K2O % 0.01
P2O5 % 0.01
H2O % 0.05
L.O.I % 3.92
PH VALUE(10% slurry) – 9.9
The data provided are typical characteristics of the product. Only for your information. Welcome customers to request sample and test.