Due to the toxicity of halogen-containing flame retardants, gas-phase reactive flame retardants have been developed in recent years as an environmentally friendly alternative. Here, Alfa Chemistry offers gas phase activity analysis services for flame retardants to help you determine the activity of flame retardants, which is critical for designing new effective and environmentally friendly flame retardants.
|Our Analytical Capabilities
|Coupled Thermal Technology
|During TG measurement, the resulting gas is sent to mass spectrometry (MS) or Fourier transform infrared spectroscopy (FTIR) for analysis. Coupled thermal techniques can be used to analyze thermal decomposition, thermal degradation, degradation pathways of flame retardant additives, etc.
|Py-GC technology can be used to analyze and identify the decomposition products of flame retardants and analyze the degradation pathways. In addition, Py-GC-MS technology can also be used to analyze the combustion behavior of polymer materials and track combustible compounds.
|Pyrolysis Combustion Flow Calorimetry
|PCFC can be used to evaluate the ignition behavior of mg-scale samples, which can provide useful parameters such as total heat release (HR), heat release capacity (HRC), and temperature at maximum heat release rate (Tmax).
|Molecular Beam Mass Spectrometry
|The MBMS technique can be used to measure the concentration of reactive radicals during a fire, typically •OH and H• radicals. In addition, the active radical concentration of specific flame retardants, such as PO•, Br•, etc., can also be measured.
|Chemiluminescence And Laser-Induced Fluorescence
|Chemiluminescence and laser-induced fluorescence techniques can also be used to analyze the concentration of reactive free radicals.
|VUV Photoionization Combined with Time-of-Flight MS
|This is an advanced technique for the timely detection, identification and quantification of transient species during pyrolysis and combustion.
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Detection of free radicals by MBMS
Mark W. Beach et al. explored the potential gaseous and condensed phase contributions of various flame retardant (FR) additives to polystyrene polymers. In this work, to explore the potential of each FR to provide gas-phase activity, MBMS was used to evaluate each FR to provide flame suppression after addition to a stabilized flame system. The graph below depicts the concentration of phosphorus-containing products after adding TPPO to the flame. 
Concentration profiles of phosphorous-containing compounds in flame after addition of TPPO 
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