Chemical Structure

Introduction

The novel silane coupling agent DP-S189 solves the above problems of the conventional art. The polysulfide structure in which the distribution of sulfur is specifiedcan ensure its stability at high temperature. Thus, it can be avoided to decarbolize to form free sulfur. The silanol group on the surface of silica can react sufficiently with the silane coupling agent. And at the same time, the dispersion of the silica into a rubber is remarkably improved; furthermore there are no effects on the property processing. Thus it can improve the productivity of rubber processing and the low heat buildup property and abrasion resistance is improved.

Typical Physical Properties

 Applications

Footwear
- Abrasion resistance
- Cutting and chunking resistance
- Flex life improvement

Rolls

- Abrasion resistance
- Aging resistance
- Processing- Set reduction (better load bearing)
- Reduced water swell
- Lower hysteresis

Mechanical Molded Goods

- Increased modulus
- Better heat aging
- Compression set reduction
- Dynamic property improvement
- Reduced swell to polar liquids
- Filler substitution (non-black for black)

Hose

- Improved abrasion on cover
- Better heat aging
- Increased modulus
- Lower compression set
- Improved adhesion to reinforcing elements

Solid Tires
- Improved abrasion
- Lower hysteresis
- Higher modulus
- Improved processing
- Possibly better adhesion

Tires
- Treads for abrasion, hot tear
- Carcass for adhesion and/or filler substitution
- Breaker (belt) stocks for adhesion

Belts
Flat Belts
- Increased abrasion
- Improved reversion resistance
- Reduced cost with clay substitution for black
- Improved cord adhesion
- Increased flex life and modulus

V Belts
- Increased modulus
- Improved abrasion
- Longer flex life
- Improved adhesion to reinforcing elements

Packing:Net weight200Kg steel drum or 1000Kg IBC tote