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2.additive or substitute product of expensive flame retardant
3.used for rubber
Introduction:
Zinc Borate is one environmental-friendly halogen-free flame retardant. There are some formulations of XZnO.YB2O3.ZH2O, in which Zinc Borate anhydrous is called ZB-23 (2ZnO.3B2O3). ZB700 is stable up to 600°C,so it can be used in polymer systems requiring very high processing temperatures. It can be added into extruders, calenders, or injection molding equipment.ZB700 is used as a flame retardant and smoke suppressant in some polymers, such as polyetherketone, polysulfone, fluoropolymer, polyester and nylon etc.
Package:
Zinc borate should be stored with very good seal, and transported as normal chemical goods.
Standard package is 25kg/bag,500kg/bag,and can design package according to order.
|
Grade /Item |
Zinc borate anhydrous ( 2ZnO.3B2O3) |
|
|
Excellent grade |
First grade |
|
|
Whiteness |
99 |
95 |
|
Surface water,%, ≤ |
0.1 |
0.5 |
|
Particle size, um |
6-8 |
6-8 |
|
ZnO, % |
42.0-44.0 |
|
|
B2O3 , % |
54.0-56.0 |
|
|
Loss on ignition,% 500 |
1 |
|
|
Fineness (Residue on 45um sieve ), % ≤ |
0.1 |
|
|
Specific gravity, g/cm3 |
2.6 |
|
|
Melting point,°C |
980 |
|
|
Refractive index |
1.58 |
|
|
CAS No. |
1332-07-6 |
|
