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Zinc oxide used specially in rubber industry


1. Characteristics:
1. Huiyuan brand zinc oxide used specially in rubber industry has smaller particle size, stronger activities, stronger decentrality and more even granule than the ordinary zinc oxide. It plays a role of sulfide. It can improve the crosslinking density of vulcanized rubber. Thus make vulcanization more thoroughly.
2. It can improve the melt viscosity. It can also improve the adhesion of rubber, steel wire and skeleton materials.
3. Dynamic mechanical performance is good. Rubber products have small deformation, less heat and good wear-resisting. These make it has good resistance to aging.
2. Usage:
Huiyuan brand zinc oxide used specially in rubber industry is mainly used in the production of radial ply tyre, diagonal tyre, conveyor belt, rubber sac, adhesive tape, rubber shoes, latex gloves and other rubber products. The performances of their products fully meet the national ministry of chemical industry and the United States ASTM standards.
3. Product executive standard GB/T3185-92  

Item

Index

Product model

Premium grade

First grade

Qualified product

Zinc oxide (Counted in ZnO) %≥

99.7

99.5

99.4

Metal (Counted by dry products) %≤

No

No

0.008

PbO (Counted in Pb) %≤

0.037

0.05

0.14

Manganic oxide (Counted by Mn) %≤

0.0001

0.0001

0.0003

Copper oxide (Counted by Cu) %≤

0.0002

0.0004

0.0007

HCl insoluble %≤

0.006

0.008

0.05

Ingition decerement%≤

0.20

0.20

0.20

Residue on sieve(45um)%≤

0.10

0.15

0.20

Water solubles %≤

0.10

0.10

0.15

105οC volatile matter %≤

0.3

0.4

0.5

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