Polystyrene High Impact Proof

Molding Properties

         ·        Drying temperature                                     : —
         ·        Drying time                                                 : —
         ·        Injection forming cylinder temperature         : 190~280°C
         ·        Injection molding tool temperature               : 10~80°C
         ·        Injection molding pressure                           : 703~2110kgf/cm­­2
         ·        Compression molding temperature               : 121~204°C
         ·        Compression molding pressure                    : 70.3~703kgf/cm2
         ·        Molding shrinkage rate                                : 0.4~0.7%
         ·        Specific gravity                                           : 1.03~1.06density

            JIS            : K6911,K7122

            A.S.T.M   : D792

Mechanical Characteristics

         ·         Tensile strength                                             : 200~350kgf/cm2
             JIS            : K6911,K7113
             A.S.T.M   : D638
         ·         Tensile elongation                                          : 13~50%
         ·         Compressive strength                                    : 281~633kgf/cm2
             JIS            : K7208
         ·         Flexure strength                                             : 211~844kgf/cm2
             JIS            : K7203
         ·         Izot impact strength                                       : 3.3~20kgf/cm2

             JIS            : K7110,K7111
         ·         Rockwell hardness                                        :  M10~80
             JIS            : K7202
             A.S.T.M   : D785

Thermal Characteristic

          ·         Heat resistance temperature (continuous)               : 59.8~79.2°C
          ·          Deflection temperature under load

                    a)                  Bending stress18.6kgf/cm2               : 90°C

                    b)                  Bending stress 4.6kgf/cm2                : 82~104°C
              JIS            : K7206,K7207
              A.S.T.M   : D648

Polystyrene General  
Polystyrene Heat Resistance 
Polystyrene Heat Resistance Glass Fiber 20~30%

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