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