Applications

Products

Polyphosphoric acid (PPA) is widely used as a modifier to enhance bitumen properties.

When added to bitumen, PPA chemically interacts with the asphaltenes and resins, improving the overall performance of the asphalt binder such as stiffness, making it more resistant to high-temperature deformation, and rutting, while maintaining flexibility at lower temperatures, preventing cracking.

When combined with polymer, PPA also helps reduce the amount of polymer required to achieve desired performance, making it a cost-effective solution for enhancing bitumen quality. Its effectiveness at low concentrations means it can improve the properties of bitumen without significantly altering the production process, offering a versatile and efficient method for improving asphalt performance.

If a crosslinker is employed, make sure to crosslink the polymer first and wait enough time before adding PPA.

Products

Applications

ValoChem’s range of PPA, called PolyVal^TM, offers several advantages:

Binder improvement:

• Improved high-temperature resistance
• Enhanced low-temperature flexibility

Application benefits:

• Cost-effective (reduces the need for expensive polymer additives)
• Easy integration into existing production processes

Other:

• PPA is a highly viscous liquid at room temperature. We supply the product in heated bulk or self-heating IBC to ease the handling of the product

Polyphosphoric acid