What is ISO 23976 about?
ISO 23976 specifies the characteristics of non-adiabatic fast differential scanning calorimeters, also covered by the general abbreviation FSC having an open specimen geometry in which specimens are placed directly onto active measurement areas of chip sensors based on Micro-Electro-Mechanical Systems (MEMS) membrane technology, without encapsulation in closed crucibles and ovens.
Due to the open specimen geometry, ISO 23976 is applicable to very small specimens having masses not greater than 1 μg only. The occurrence of high-temperature gradients during measurements can be prevented by keeping specimen thicknesses as small as possible.
ISO 23976 specifies methods for qualitative and quantitative analysis of fast physical and chemical processes showing changes in heat flow rate. This includes measurement of characteristic temperatures as well as caloric values of both, solid and liquid materials.
ISO 23976 is particularly applicable for the observation of fast kinetics of thermal effects such as:
- Physical transitions (glass transition, phase transitions such as melting and crystallization, polymorphic transitions, etc.)
- Metastability and related processes like reorganization, (re)crystallization, annealing, ageing, amorphization
- Chemical reactions (hydration, oxidation, polymerisation, crosslinking and curing of elastomers and thermosets, decomposition, etc.)
- Isothermal measurements of fast crystallising systems or chemical reactions
Who is ISO 23976 for?
ISO 23976 on fast differential scanning calorimetry for plastic is relevant to:
- Plastic manufacturing industry
- Pharmaceutical industry
- Product design engineers
- Chemical engineers
Why should you use ISO 23976?
The development of fast scanning calorimetry (FSC) based on-chip sensors with very high sensitivity using ultrathin SiN membranes was initially driven by the objective to measure the thermal properties of very small amounts of the sample.
ISO 23976 is applicable for the determination of heat capacity and related changes of thermodynamic functions. FSC provides a technique to analyse material behaviour at similarly high heating or cooling rates used in industrial polymer processing.
FSC is suitable for thermal analysis of fast kinetic effects of polymers, polymer blends and composites, such as:
- Thermoplastics (polymers, moulding compounds and other moulding materials, with or without fillers, fibres or reinforcements)
- Thermosets (uncured or cured materials, with or without fillers, fibres or reinforcements)
- Elastomers (with or without fillers, fibres or reinforcements
As a manufacturer, you will be able to evaluate the response of plastics and polymer to heating, helping you make an improved choice regarding the components that go into your products. In order to produce high-quality and durable products, ISO 23976 can be your one-stop guide.
