Polystyrene Heat Resistance

Molding Properties

         ·     Drying temperature                                           : —
         ·     Drying time                                                       : —
         ·     Injection forming cylinder temperature               :190~280°C
         ·     Injection molding tool temperature                    : 20~80°C
         ·     Injection molding pressure                                : 703~2110kgf/cm­­2
         ·     Compression molding temperature                    : 129~204°C
         ·     Compression molding pressure                         : 70.3~703kgf/cm2
         ·     Molding shrinkage rate                                     : 0.2~0.6%
         ·     Specific gravity                                                : 1.03~1.09density

          JIS            : K6911,K7122

          A.S.T.M   : D792

Mechanical Characteristics

         ·       Tensile strength                                               : 350~530kgf/cm2
           JIS            : K6911,K7113
           A.S.T.M   : D638
         ·        Tensile elongation                                           : 2~60%
         ·         Compressive strength                                    : —
           JIS            : K7208
         ·         Flexure strength                                             : —
           JIS            : K7203
         ·         Izot impact strength                                       : 2.2~19kgf/cm2
           JIS            : K7110,K7111

         ·         Rockwell hardness                                        : M70
           JIS            : K7202
           A.S.T.M   : D785

Thermal Characteristic

         ·         Heat resistance temperature (continuous)                : —
         ·         Deflection temperature under load

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

                    b)                  Bending stress 4.6kgf/cm2                : —
            JIS            : K7206,K7207
            A.S.T.M   : D648

 

 

Polystyrene General

Polystyrene High Impact Proof 

Polystyrene Heat Resistance Glass Fiber 20~30%

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