Sunday, August 14, 2011

Unsaturated Polyester

Applications:

          ·         TV tuners
          ·         Fuses
          ·         Breakers
          ·         Motor covers
          ·         Power distributor case covers
          ·         Press rings
          ·         Rectifier frames

Unsaturated Polyester Glass roving

Molding Properties

          ·         Drying temperature                                        : —
          ·         Drying time                                                    : —
          ·         Injection forming cylinder temperature            : —
          ·         Injection molding tool temperature                  : —
          ·         Injection molding pressure                              : —
          ·         Compression molding temperature                  : 76.5~160°C
          ·         Compression molding pressure                       : 17.6~141kgf/cm2
          ·         Molding shrinkage rate                                   : 0.02~0.2%
          ·         Specific gravity                                               : 1.35~2.30density
              JIS            : K6911,K7122
              A.S.T.M   : D792

Mechanical Characteristics

          ·         Tensile strength                                        : 1050~2110kgf/cm2
             JIS            : K6911,K7113
             A.S.T.M   : D638
          ·         Tensile elongation                                    : 0.5~5.0%
          ·         Compressive strength                              : 1050~2110kgf/cm2
             JIS            : K7208
          ·         Flexure strength                                       : 703~1270kgf/cm2
             JIS            : K7203
          ·         Izot impact strength                                 : 10.9~109kgf/cm2
             JIS            : K7110,K7111
          ·         Rockwell hardness                                  : barcol 50~80
             JIS            : K7202
             A.S.T.M   : D785

Thermal Characteristic

           ·         Heat resistance temperature (continuous)       : 149~176°C
           ·         Deflection temperature under load
                     a)      Bending stress18.6kgf/cm2                   : >204°C
                     b)      Bending stress 4.6kgf/cm2                    : —
             JIS            : K7206,K7207
             A.S.T.M   : D648

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