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 |