How to measure glass transition temperature of propellants?
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The glass transition temperature of propellants can be measured using Dynamic Mechanical Analysis (DMA). DMA involves subjecting the propellant to varying temperatures and measuring parameters like storage modulus E', loss modulus E", and tanδ to determine the glass transition temperature. In the case of solid rocket propellants, the glass transition temperature is crucial for safe operation and storage. Additionally, machine learning models have been developed to predict the glass transition temperature of organic compounds, including propellants, based on input variables derived from molecular structures. Understanding the glass transition temperature is essential for assessing the propellant's behavior under different conditions and ensuring its stability and performance. Molecular dynamics simulations have also been utilized to forecast the glass transition temperature of propellants like hydroxyl terminated polybutadiene (HTPB).
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01 Jan 2017 2 Citations | The glass transition temperature of propellants can be measured using dynamic mechanical analysis (DMA) to analyze the material's transition from a glassy to a rubbery state. |
| Not addressed in the paper. | |
31 Mar 2015 | The paper describes using Dynamic Mechanical Analysis (DMA) to measure the glass transition temperature of double-base rocket propellants. |
25 Jul 2019 | The glass transition temperature of propellants can be measured by using a DMA analyzer with dual-cantilever testing mode, heating the propellants at a rate of 2K/min in the temperature range from -120 °C to 110 °C. The glass transition is determined from the peak of the loss modulus curve. |
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