Key Parameters for SBR Latex Selection

Selecting SBR latex for asphalt modification requires consideration of the complete formulation rather than a single specification.

Different asphalt and bitumen systems may require different polymer characteristics.

1. Solids Content

High Solid SBR Latex provides a higher polymer concentration and can help formulators manage the amount of water introduced into the system.

2. Glass Transition Temperature

Tg is an important parameter when evaluating the temperature-related behavior of SBR polymer.

The appropriate Tg depends on the target application and formulation requirements.

3. Viscosity

Latex viscosity affects pumping, mixing and dosing. The viscosity should be suitable for the customer's production equipment.

4. Latex Stability

Storage stability and mechanical stability are important for transportation and production.

5. Bitumen Compatibility

Compatibility between the SBR latex and the selected bitumen or bitumen emulsion should be evaluated through laboratory testing.

6. Polymer Dosage

The required dosage depends on the target binder properties and overall formulation.

Practical Evaluation

A suitable SBR grade should be evaluated through laboratory trials using the customer's actual bitumen, additives and processing conditions.

RUICO can provide technical information and samples for SBR latex evaluation in asphalt and bitumen applications.

Contact: [email protected]