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SBS 791H

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

SBS rubber 791H is a special grade for asphalt modification with linear molecular structure and the styrene content of 30%. Its molecular weight is higher than that of grade 791 while fluidity is a little weaker. SBS polymer 791H is polystyrene(S)-polybutadiene(B)-polystyrene(S) triblock copolymer.

APPLICATION

Adhesives /Asphalt modification /Compounding

CHEMICAL PROPERTIES

  • Structure

    L

  • Molecular Structure Diagram

  • Styrene Content  (%)

    30 

  • Oil Content  (%)

    0 

  • MFI  (g/10min)

    0.01 - 0.5 

  • Shore A  (/)

    ≥68 

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

    － 

  • Tensile Strength  (Mpa)

    ≥18 

  • Elongation  (%)

    ≥700 

  • Stress at 300%  (Mpa)

    ≥2 

  • Ash  (%)

    ≤0.20 

  • Volatility  (%)

    ≤1.00 

FORMULA

  • Asphalt Modification (Parts by mass)

  • SBS（YH791H）

    4

  • Asphalt

    100

  • Antioxygen

    0.8

ALTERNATIVE GRADES

                      Petrochina SBS T-6302H

MANUFACTURE

Sinopec