High Purity Rubber Grade Zinc Oxide supplier and manufacturer - China factory

Product Description

High Purity Rubber Grade Zinc Oxide

Product data of High Purity Rubber Grade Zinc Oxide:

Product name:	Zinc Oxide
CAS NO.	1314-13-2
EINECS NO.	215-222-5
Molecular formula:	ZnO
Density:	5.606g/cm3
Molecular weight:	81.38
Appearance:	White hexagonal crystal or powder

High Purity Rubber Grade Zinc Oxide factory

The Important Role Of Zinc Oxide In Rubber

Rubber grade Zinc oxide (ZnO) is the main inorganic active agent in the rubber industry. Since 1912, Rubber grade zinc oxide is still the best active agent in the rubber vulcanization system, and it is also an irreplaceable active agent. It forms a vulcanization system together with stearic acid, sulfur, and accelerator to accelerate the vulcanization speed and increase the crosslink density.

The Role Of Zinc Oxide In Rubber Products

1. Rubber grade zinc oxide is a good reinforcing agent for rubber industy, It can improve the rubber’s corrosion resistance, tear resistance, elasticity and elongation.

2. The accelerator used in the rubber vulcanization process is a multi-functional rubber compounding agent, mainly used as a vulcanization active agent and reinforcing agent for natural rubber, synthetic rubber, latex.

3. When used as a vulcanization activator, it is evenly distributed in the rubber compound and has a large contact area with hydrogen sulfide, and there is a greater opportunity for interfacial reaction. In addition, this active zinc oxide product has the catalytic effect of active substances to make zinc oxide The conversion rate to zinc sulfide is high.

4. As a vulcanizing oxidant, its role is to enhance the activity of the accelerator, reduce the amount of accelerator, and shorten the vulcanization cycle.

5. It can speed up the vulcanization speed, improve the thermal conductivity of the vulcanized rubber, and make the vulcanization more thorough.

6. In the rubber industry, especially in the production of transparent rubber products, activated zinc oxide is an excellent vulcanization activator.

MST chemical coating grade zinc oxide powder is made by indirect method with high purity and low impurities. It can meet all the requirement of coating, And keep customers' product quality stable.

High Rubber Grade Zinc Oxide Specification

Item	Type1	Type2	Type3
Zinc oxide（Zn0 calculating as dry materia)% ≥	99.7	99.7	99.5
Metal content（as Zn)% ≤	none	none	0.008
Insoluble Matter in Hci % ≤	0.006	0.008	0.03
Loss on ignition % ≤	0.2	0.2	0.25
Residue on sieve (45um)% ≤	0.1	0.15	0.2
Water soluble matter % ≤	0.1	0.1	0.15
Volatile matter in 105℃ % ≤	0.3	0.4	0.5
Lead(pb）% ≤	0.008	0.05	0.1
Copper(Cu)% ≤	0.0002	0.0004	0.0007
Manganese（ Mn）%	0.0001	0.0001	0.0003
Cadmium (Cd）%	0.002	0.005	0.01
Iron (Fe）%	0.005	0.01	—