Page 5 - Hydrocarbon Evaluation Rubber and Plastic
P. 5

Evaluation                      Heat absorption and generation, specific heat capacity, reaction speed,
             of Thermal                      evaporation and decomposition, gas absorption, moisture content, heat
                                             resistance, coefficient of thermal expansion/contraction, softening point
             Properties                      Plastics are heated up in a variety of ways during formation and processing. This thermal
                                             history has a direct influence on product quality and so it is necessary to grasp the thermal
                                             properties and perform optimum temperature control in the manufacturing process.
                                             Evaluating the thermal properties of a substance involves the evaluation of the dependency of
                                             its physical properties on temperature. The physical properties include mass, temperature,
                                             enthalpy, dimensions, and strength, and different types of thermal analyzer are used to evaluate
                                             different properties.


            •Thermal Analyzer  60 Series
            These analyzers are fully compatible with Windows 95, 98, NT, 2000, and
            XP. Up to 4 analyzers (50/60 series) can be connected. They are
            equipped with multi-channel, multi-task functions that enable
            measurement and analysis to be performed at the same time.































            •Automated Differential Scanning Calorimeter          •Simultaneous DTA-TG  DTG-60/60A
             DSC-60/60A                                           A DTA-TG simultaneous measuring instrument equipped with a
            An auto-DSC equipped with an autosampler. Up to one day's worth   differential top-loading balance, which uses the Roberval
            of samples (24) can be set, each with different measurement   mechanism to prevent fluctuations in balance sensitivity due to
            conditions. Template-based automatic analysis and automatic   inconsistencies in the position of the sample, and a plug-in high-
            printing make for easy operation.                     sensitivity thermocouple. Sample masses of up to 1 g can be
                                                                  measured and the DTA sensitivity at high temperatures has been
                                                                  improved.

















            •Thermogravimetric Analyzer  TGA-50/50H/51/51H        •Thermomechanical Analyzer  TMA-60/60H
            Shimadzu's well-established high-sensitivity thermobalances. Their   This analyzer can handle a wide variety of samples and
            lightweight hanging balance mechanism and delicate taut-band   measurement methods and a large temperature range to perform
            fulcrum ensure a surprising level of sensitivity (reading limit: 1µg)   thorough measurement of the mechanical properties of materials. A
            and excellent vibration resistance, making them very effective for   high-precision digital sensor allows displacement measurement
            measuring extremely small changes in mass. The maximum   with a low drift in a wide range.
            sample mass for 50/51 models is 10 g, making them indispensable
            for researching catalysts and thin films.

                                                          5   Evaluation of Thermal Properties
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