Rubber and Plastic Compounds
?Zinc oxide is used in rubber and latex compounds as an activator in the curing and vulcanization process.
?Zinc oxide is used as a reinforcing agent adding durability and abrasion resistance to compounds.
?Zinc oxide aids in protecting rubber and plastics (especially outdoor weathering polypropylenes) from harmful UV rays.
?Zinc oxide imparts heat resistance properties to various types of rubber and plastics compounds.
Standard: GB/T3185-92
|
Item |
Index |
|
Model |
Top grade |
First grade |
Qualified product |
|
Zinc oxide(as Zno)%,≥ |
99.7 |
99.5 |
99.4 |
|
Metals (as Zn)%,≤ |
No |
No |
0.008 |
|
Lead oxide（as Pb）%,≤ |
0.037 |
0.05 |
0.14 |
|
manganese（as Mn）%,≤ |
0.0001 |
0.0001 |
0.0003 |
|
Copper oxide（as Cu）%,≤ |
0.0002 |
0.0004 |
0.0007 |
|
Insoluble matter in HCI%,≤ |
0.006 |
0.008 |
0.05 |
|
Loss on ignition%≤ |
0.2 |
0.2 |
0.2 |
|
Residue on sieve（45um）%,≤ |
0.1 |
0.15 |
0.2 |
|
Water soluble matter%,≤ |
0.1 |
0.1 |
0.15 |
|
Volatile matter on 105℃%,≤ |
0.3 |
0.4 |
0.5 |