FTIR (Fourier Transform Infrared Spectroscopy) us generally used for:
- Identification of all types of organic and many types of inorganic compounds
- Determination of functional groups in organic materials
- Determination of the molecular composition of surfaces
- Quantitative determination of compounds in mixtures
- Non-destructive method
- Determination of molecular conformation (structural isomers) and stereochemistry (geometrical isomers)
- Determination of molecular orientation (polymers and solutions)
ARC (Accelerating Rate Calorimetry): It is one of the methods used to investigate the thermal properties of energetic materials. ARC is mostly used to evaluate the thermal hazards and accordingly set the safe limits for process, storage and transport temperatures. This information is determined by finding the onset temperature for thermal run-away reactions.
TGA (Thermo Gravimetric Analysis): Thermogravimetry is a technique in which the mass of a sample is monitored against time or temperature while the temperature of the sample, in a specified atmosphere, is programmed. The technique can also provide information on the various steps in the thermal decomposition of an energetic material.
DSC (Differential Scanning Calorimetry) is used to measure the onset temperature and energetics of phase transitions, to estimate sample purity, to determine heat capacities, and to measure the enthalpy change (?H°) and kinetic parameters of the decomposition process.
Rheology is defined as the flow of fluids and deformation of solids under applied stresses or strains. The measurement of rheological properties is applicable to all material types – from fluids to semi-solids and even solid systems such as polymers and composites.
Powder Rheology: At AEL R&D, we use the Freeman Technologies FT4 powder rheometer that enables us to determine the following:
- The flow ability of conditioned, consolidated and aerated powders
- Measure bulk density, permeability and compressibility
- Generate high precision shear strength data
- Quantify the impact of flow ability of many variables such as moisture, segregation and attrition
- Optimise formulations
PSA (Particle Size Analysis) and measurement are important parameters across many industries. The stability, chemical reactivity, opacity, flowability and material strength of many materials are affected by the size and characteristics of the particles within them. Getting things right at every stage of production, from R&D through to manufacture and quality control of the finished product is vital.
BET Surface Area
BET surface area analysis is a technique used to determine the specific surface area of powders, solids and granules, the values are expressed in meter square per gram.
The BET surface area measurement is crucial in understanding the behaviour of a material, as material reacts with its surroundings via its surface, a higher surface area material is more likely to react faster, dissolve faster and adsorb more gas than a similar material with a lower surface area.