In the realm of materials science and industrial chemistry, the development of advanced flame retardants is crucial for ensuring safety and enabling innovation. Brominated SBS, identified by its CAS number 1195978-93-8, represents a significant advancement in this field. As a polymeric flame retardant, it offers a unique set of properties that make it highly effective and environmentally preferable, particularly for applications in polystyrene foams like EPS and XPS.

Understanding the Chemistry and Structure

Brominated SBS is essentially a modified version of the well-known Styrene-Butadiene-Styrene (SBS) triblock copolymer. The 'brominated' aspect signifies that bromine atoms have been incorporated into the polymer structure. This bromination process is key to its flame-retardant capabilities. When exposed to heat or flame, the bromine atoms are released, interfering with the combustion cycle in the gas phase by scavenging free radicals that propagate the flame. The polymeric nature of Brominated SBS is a critical advantage; its high molecular weight means it is less likely to migrate out of the material matrix, less volatile, and less prone to environmental dispersion compared to smaller, monomeric flame retardants. This structural characteristic is also why it serves as a superior alternative to HBCD, which has been a cause for environmental concern.

Key Technical Specifications and Their Importance

For professionals seeking to integrate Brominated SBS into their products, understanding its technical specifications is paramount. A typical product profile for CAS 1195978-93-8 includes:

  • Appearance: White powder. This physical form allows for easy incorporation into various polymer processing methods.
  • Bromine Content: Typically 64% minimum. This high bromine content is directly correlated to its flame-retardant efficacy.
  • Thermal Weight Loss: Often specified as 1% at 220℃ or a decomposition temperature above 230℃. This indicates its ability to withstand processing temperatures without premature decomposition, which is essential for maintaining material integrity and preventing equipment corrosion.
  • pH: Usually in the range of 5.5-7.5, indicating a neutral or near-neutral character, which is important for material compatibility and minimizing corrosion.
  • Electrical Conductance: Low values (e.g., ≤ 10 μS/cm) suggest good electrical insulation properties, which can be beneficial in certain applications.

Applications Driving Demand

The primary driver for Brominated SBS (CAS 1195978-93-8) is its role as a replacement for HBCD in flame retardant applications, especially for:

  • EPS and XPS Foam Insulation: In the construction industry, these foams are ubiquitous. Brominated SBS ensures they meet fire safety standards without the environmental baggage of HBCD. This makes it a vital additive for manufacturers focused on safety and sustainability.
  • Polystyrene Products: It can be used in other polystyrene-based materials where enhanced flame retardancy is required.
  • Other Polymer Systems: While less common, its properties may lend themselves to other polymer formulations requiring high-performance flame retardancy.

Sourcing Brominated SBS (CAS 1195978-93-8) as a Procurement Strategy

For R&D scientists and procurement managers, identifying reliable sources for this critical chemical is key. When you seek to buy Brominated SBS (CAS 1195978-93-8), consider partnering with established manufacturers and suppliers who can provide consistent quality and technical specifications. Countries like China are significant production hubs, offering competitive pricing and robust supply chains. Engaging with these suppliers to get a quote is a prudent step towards ensuring your production line is equipped with this advanced, environmentally conscious flame retardant. Its technical advantages make it an indispensable component for modern fire safety solutions.