Rubber & PTFE Component
 
Rubber Chemical
    Accelerator BSM
    Accelerator BSB
    Accelerator DCS
    Accelerator DPG
    Accelerator F
    Accelerator HBS
    Accelerator MBT
    Accelerator MBTS
    Accelerator MS
    Accelerator TMT
    Accelerator ZDBC
    Accelerator ZMBT
    Antioxidant 445
    Antioxidant A100
    Antioxidant B Rod
    Antioxidant BL
    Antioxidant BL75 S
    Antioxidant BLN
    Antioxidant MBI
    Antioxidant ODPS
    Antioxidant SP
    Antioxidant TQ
    Antioxidant ZA
    Antioxidant ZC
    Peptizer Accimel E
    Peptizer Accimel
    Retarder RE
    Tackifier CH
    Active Zinc Oxide
    ADC Blowing Agent
    Stearate
 
Chemical - Master Batch
    Rubber Accelerater R 100
    Rubber Accelerater R 170
 
Chemical - Modified Sulphur
    CCS
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    Resin 300 M
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Rubber Polymers
 
Precipitated Silica
 
Oil & Lubricant
 
Zeolite


ACTIVE ZINC OXIDE (ACTIVATED / TRANSPARENT)

Organic accelerators used in rubber compounding are almost always dependant on the presence of activators. Zinc Oxide is the most important of such activators.

FEATURES:

  • They are very small particle sizes zinc-oxide active & transparent grades cause very powerful activation of the cure. Depending on the type and amount of accelerator present they can considerably delay the onset of cure without simultaneously extending the total curing time.
  • They have stronger activating effect, the amount of this substance needed for the same modulus is lesser as compared to ordinary Zinc Oxide.
  • Unlike ordinary Zinc-Oxide, our grade is compatible with the production of transparent goods as it does not impair the transparency of the vulcanizates when added in small and moderately large amounts.
  • They cause no changes in the colour of the vulcanizates. They reduce yellowing in white and light coloured goods which are exposed to strong light.
  • As they do not have pigmenting properties, they do not influence effect of colour pigments provided they are not too heavily loaded.
  • Due to exceptionally low lead compound contents they are particularly suitable for vulcanizates intended to be practically free from heavy metals.
  • They do not boom.

APPLICATIONS:

  • Can be used as activators in : 1. sulphur cures 2. peroxide cures (often) 3. sulphurless metallic-oxide cures. Used as crosslinking agent for lattices with reactive groups and for CR.
  • Suitable for following types of rubber-NR, IR, BR, SBR, NBR, IIR, CR, EPDM, CSM.
  • Transparent goods i.e. injection caps, condoms, gloves, lab. appartus.
  • Rubber foam.
  • Highly elastic vulcanizates (spring components).

USAGE:

  • Owing to the fineness of particles, Active Zinc Oxide is very easy to incorporate and disperse well.
  • They raise the viscosity of the mix. Large additions stiffen the mix considerably.
  • As their proportion is increased the thermal conductivity of rubber mixes is raised which isan advantage in hot air curing.
  • In large proportions, zinc-oxide active behaves like reinforcing filler. It gives vulcanizates highgh tensile strength and rebound resilience with a simultaneous increase in hardness. It also imparts resistance to ageing and protection against flex-cracking

Active Zinc Oxide RT-70

TYPICAL PHYSIOCHEMICAL PROPERTIES

Property

Unit

Value

Surface Area (BET)

m²/gm

22-26

Bulk Density*

gm/cc

0.35-0.45

Oil Absorption

%

110-130

pH (2% acq. Solution)

%

7.2-8.8

ZnO

%

72±4

Pb, Cu, Ni, Mn, Cd

ppm max.(total)

20

Moisture ( at 90°C)

%

<2.0

Residue on 300 mesh

%

<0.8

Active Zinc Oxide AH-90

TYPICAL PHYSIOCHEMICAL PROPERTIES

Property

Unit

Value

ZnO

%

90±2

Electrolytes

%

<1.0

pH (2% acq. Solution)

--

7.0-8.5

Bulk Density*

gm/cc

0.8-0.9

Moisture ( at 90°C)

%

<1.0

Heavy Metals

ppm (max.total)

20

Residue on 300 mesh

%

<0.8

Surface Area (BET)

m²/gm

15-20

Water Absorption

%

34-38

Oil Absorption

%

32-36

Transparent Active Zinc Oxide T-48

PRODUCT CHARACTERISTICS

Test

Unit

Value

Percentage as ZnO

%

70

Total Soluble Salts

%

0.5

Sieve Residue 350 mesh

%

0.2

Bulk Density*

gm/cc

0.4-0.6

Surface Area

m²/gm

38-42

Moisture

% max

2.0

Packing

Kgs / bag

25

Transparency after vulcanization

Visual observation

Transparent equal to imported grades

pH

--

6.5-8.0

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