Konstante Produktqualität von expandiertem Polystyrol (EPS) mittels STA

Jeder kennt EPS, das Verpackungsmaterial, das in der Unterhaltungselektronik für Fernsehgeräte oder Computer sowie für Isolierungen von Gebäuden. eingesetzt wird. Ausgangsbasis für EPS-Teile ist Polystyrol-Granulat, das homogen mit einem Treibmittel – meist Pentan − angereichert wird. Je mehr Treibmittel ein Mikrogranulat enthält, desto leichter lässt es sich im Prozessschritt Vorschäumen expandieren. Um die erforderlichen Verarbeitungsparameter genau bestimmen zu können, ist die Kenntnis des Treibmittelgehalts wichtig. Lesen Sie wie Thermogravimetrie Ihnen dabei hilft!

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Detection of Ultra-Small Residual Masses: Weigh The Little Bird!

Thermogravimetry (TGA) is frequently applied for the compositional analyses of such materials as, for example, fiber-reinforced polymer composites. The residual mass at the end of a TGA experiment reflects the filler or glass fiber content as well as the presence of impurities. By using a relatively large sample volume in a top-performing thermobalance along with the intelligent Proteus® software by NETZSCH, it is possible to detect ultra-small residual masses with concentrations down to the ppm (= 10-6) range! Such small concentrations can be illustrated by a little bird with a mass of a few grams sitting on the back of an elephant weighing a few tons.

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Assessing Fire Hazard of Cladding Materials in Existing Buildings

Fire cladding materials testing

The University of Queensland, in collaboration with the Non-Conforming Building Products (NCBP) Audit Taskforce in Queensland, Australia, have proposed a framework to provide a robust methodology to assess the fire hazard of cladding materials in existing buildings based on a thorough understanding of the relevant fire phenomena. Thermogravimetric Analysis enhances the robustness of the framework. Read here how the method is applied to evaluate the risk of external fire spread on buildings.

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Smart Thermal Analysis (Part IIb): Identify … the Most Comprehensive Database in Thermal Analysis

Identify is the most comprehensive database system in Thermal Analysis! In a nutshell, Identify can be used for the recognition and comparison of measurement curves. Signals of types DSC, TGA, DIL/TMA and cp are supported, curves can be found and overlaid easily. This article highlights the great database contents of Identify (status 11/2019): The Identify … Read moreSmart Thermal Analysis (Part IIb): Identify … the Most Comprehensive Database in Thermal Analysis

Smart Thermal Analysis (Part II): Identification of Measurements via Database Search

The database system for thermal analysis by NETZSCH, called Identify, has now (from Proteus® analysis version 8.0 or higher) already more than 2000 database entries available.
Furthermore, Identify can now be used with combined TGA+DSC, TGA-c-DTA® and STA measurements, which allows for material identification with greater certainty.

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Smart Thermal Analysis (Part I): Automatic Evaluation of DSC, TGA and STA Measurements

AutoEvaluation by NETZSCH is a very helpful tool for evaluation of thermoanalytical measurements. The entire measurement is evaluated by AutoEvaluation automatically and autonomously (not via pre-defined macro!) – with only one mouse click – and just within a second. AutoEvaluation is available for DSC, TGA and now also for STA measurements. Furthermore, the adaptability of AutoEvaluation is adressed.

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