Glass transition temperature determination of solid rocket propellants using various thermal analysis techniques

2018 ◽  
Author(s):  
Marcin Cegła ◽  
Janusz Zmywaczyk ◽  
Piotr Koniorczyk
Keyword(s):  
Thermal Analysis ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Analysis Techniques ◽  
Rocket Propellants ◽  
Solid Rocket ◽  
Thermal Analysis Techniques ◽  
Solid Rocket Propellants

An analysis of the mechanical properties of HTPB-propellants using DMA

2020 ◽  
pp. 81-91
Author(s):  
Katarzyna Gańczyk-Specjalska ◽  
Paulina Magnuszewska
Keyword(s):  
Mechanical Properties ◽  
Glass Transition ◽  
Transition Temperature ◽  
Mechanical Analysis ◽  
Thermomechanical Properties ◽  
Dynamic Force ◽  
Rocket Propellants ◽  
Hard Segments ◽  
Solid Rocket ◽  
Solid Rocket Propellants

The paper presents the thermomechanical properties of solid rocket propellants containing hydroxyl-terminated polybutadiene. Dynamic mechanical analysis (DMA) was used in analysing the mechanical properties of propellant for two different sample geometries (cuboid and cylindrical). Nonisothermal and isothermal analyses were carried out in two holders: dual-cantilever and compression. The glass transition temperature of soft and hard segments in the propellants, the effect of dynamic force on sample strain, the creep-relaxation process (based on which parameters in the Burgers model were calculated) were determined based on the results of the analysis.

Determination of glass transition activation energy for homogeneous solid rocket propellants

2019 ◽  
Author(s):  
Marcin Cegła ◽  
Piotr Ruliński ◽  
Janusz Zmywaczyk ◽  
Piotr Koniorczyk
Keyword(s):  
Activation Energy ◽  
Glass Transition ◽  
Rocket Propellants ◽  
Solid Rocket ◽  
Solid Rocket Propellants

scholarly journals Thermal analysis: basic concept of differential scanning calorimetry and thermogravimetry for beginners

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nurul Fatahah Asyqin Zainal ◽  
Jean Marc Saiter ◽  
Suhaila Idayu Abdul Halim ◽  
Romain Lucas ◽  
Chin Han Chan
Keyword(s):  
Thermal Analysis ◽  
Differential Scanning Calorimetry ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Commercial Application ◽  
Scanning Calorimetry ◽  
Teaching Activities ◽  
Sample Decomposition ◽  
Calibration Baseline

AbstractWe present an overview for the basic fundamental of thermal analysis, which is applicable for educational purposes, especially for lecturers at the universities, who may refer to the articles as the references to “teach” or to “lecture” to final year project students or young researchers who are working on their postgraduate projects. Description of basic instrumentation [i.e. differential scanning calorimetry (DSC) and thermogravimetry (TGA)] covers from what we should know about the instrument, calibration, baseline and samples’ signal. We also provide the step-by-step guides for the estimation of the glass transition temperature after DSC as well as examples and exercises are included, which are applicable for teaching activities. Glass transition temperature is an important property for commercial application of a polymeric material, e.g. packaging, automotive, etc. TGA is also highlighted where the analysis gives important thermal degradation information of a material to avoid sample decomposition during the DSC measurement. The step-by-step guides of the estimation of the activation energy after TGA based on Hoffman’s Arrhenius-like relationship are also provided.

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