Kettlitz Chemie Silanogran PV

Silanogran PV is the 50 % granular form of a trimethoxy-silyl-group containing low molecular poly-butadiene (formerly Polyvest 25) on a mineral carrier. The pure liquid polymer is sticky and highly viscous. Our granular form provides easier handling, avoids inaccuracy and insecurity while dosing and incorporating the material into the rubber compound.

Functions: Coupling Agent

Chemical Family: Polybutadienes, Silanes

Compatible Polymers & Resins: Ethylene Propylene Diene Monomer (EPDM)

End Uses: Cables, Footwear, Housewares, Sporting Goods, Tires, Tubing, Wires

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
Technologies

Features & Benefits

Materials Features
Features

The active substance of Silanogran PV is a low molecular polybutadiene containing silane groups which react by means of their reactive alcoxy groups (trimethoxy groups) and the silanol-groups-con-taining surfaces of silica and silicate fillers. The unsaturated polymer chains of Silanogran PV are integrated in the rubber matrix during vulcanization. The active substance of Silanogran PV is a low molecular polybutadiene containing silane groups which react by means of their reactive alcoxy groups (trimethoxy groups) and the silanol-groups-con-taining surfaces of silica and silicate fillers. The unsaturated polymer chains of Silanogran PV are integrated in the rubber matrix during vulcanization.

Applications & Uses

Compatible Polymers & Resins
Application

The application of Silanogran PV results in an improvement of the curing properties as stated below

  • shorter curing time at equal scorch time
  •   better processability of the uncured compounds by lowering the Mooney Viscosity
  •  increase of tensile strength, modulus and tear resistance
  •   improvement of Compression Set
  •   decrease of abrasion
  •   minimized water absorption i. e. better electrical properties of cable compounds
  •  increase of dynamic properties
Dosage

Silanogran PV is usually dosed between 1–6 weight percent calculated on silica fillers. A special mixing sequence does not have to be observed.

Properties

Physical Form
Appearance
soft granules (diameter 6–8 mm), free-flowing
Physical Properties
ValueUnitsTest Method / Conditions
Density at 20 °Capprox. 1.10 (mathematically)g/cm³

Packaging & Availability

Packaging

hermetically sealed PE bags of low melting foil (60–85 °C) of 1 kg each, in cartons of 15 kg each pre-weighed sachets of between 0.5–2.5 kg net on request available

Storage & Handling

Storage

1 year under suitable storage conditions.