Zinc oxide for rubber supplier and manufacturer - China factory

Product Description

Zinc oxide for rubber

Milestone Industrial co. ltd. produces 99.7% of zinc oxide special for rubber in the indirect method, which has high activity and low heavy metals in zinc ingot production, which can meet the production and use of rubber products.

Product name	Zinc oxide	Molecular formula	ZnO
CAS NO	1314-13-2	EINECS NO	215-222-5
Density	5.606g/cm3	Molecular weight	81.38
Melting point	1975℃	Boiling Point:	2360ºC
Purity	0.99	Active substance content	0.997
H.S CODE	2817001000	Appearance	White powder or crystal

What is zinc oxide for rubber?

Zinc oxide for rubber and plastic is a kind of white or slightly yellow fine powder with high activity. It is a nanocomposite product made by applying advanced production and processing technology according to the requirements of the rubber industry for zinc oxide; zinc oxide for rubber High activity, superior performance, wide application; in tape, rubber conveyor belt, triangle belt, motorcycle tire, bicycle tire, rickshaw tire, rubber sole, rubber shoes, artificial leather, rubber sheet, rubber roller, rubber tube, rubber pad, Rubber products such as sealing strips, cables, basketballs, foam rubber products and transparent rubber products have good results.

Standard:《GB/T3185-2016》
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	—
Specific surface area（m2/g)	agree		—
Oil absorption */g/100g	agree
Color* (compared with standard sample)	agree
Decoloration power*(compared with standard sample)≥	agree

Advantages of zinc oxide for rubber:

1. Zinc oxide for rubber has small particle size and large surface area, so it has very strong activity.

2. Zinc oxide for rubber can improve the degree of crosslinking and the mechanical properties of vulcanized products. In addition, the modulus, tear resistance and friction resistance can be improved.

3. Since the zinc oxide particles for rubber have an active agent as the core, they form a porous form after polymerization, so they have good dispersibility.

4. The vulcanized product containing active zinc oxide is anti-aging, and it is not easy to crack when bent.

5. Zinc oxide for rubber does not affect the color of vulcanized products. In fact, it can make ivory or light-colored rubber products resist strong sunlight.

6. Since the refractive index of zinc oxide for rubber is similar to that of natural rubber, it can make the color of the vulcanized product more clear and transparent.

7. It can reduce mixing costs and improve chemical reaction efficiency.