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SBS 791

SBS rubber（Styrene Butadiene Styrene block copolymer） 791 | BEC materials SBS rubber（Styrene Butadiene Styrene block copolymer） 791 | BEC materials
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DESCRIPTION

SBS rubber 791 is polystyrene(S)-polybutadiene(B)-polystyrene(S) triblock copolymer with excellent solution transparency and styrene content of 30%.

APPLICATION

Adhesives /Asphalt modification /Compounding

CHEMICAL PROPERTIES

  • Structure

    L

  • Molecular Structure Diagram

  • Styrene Content  (%)

    30 

  • Oil Content  (%)

    0 

  • MFI  (g/10min)

    0.10 - 5.00 

  • Shore A  (/)

    ≥65 

  • Solution Viscosity  (25%,25℃,mPa.s)

    1800-3200 

  • Tensile Strength  (Mpa)

    ≥13 

  • Elongation  (%)

    ≥680 

  • Stress at 300%  (Mpa)

    ≥2 

  • Ash  (%)

    ≤0.20 

  • Volatility  (%)

    ≤0.70 

FORMULA

  • Cement Sealant (Parts by mass)

  • SBS（YH791）

    100

  • Asphalt

    180

  • Plasticizer

    60

  • Resin

    60

  • Antioxygen

    1

ALTERNATIVE GRADES

                      Calprene C701

MANUFACTURE

Sinopec