Gas-Phase Activity Analysis

Cross-Linking And Grafting Technology

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.


What Can We Do?

  • Relying on advanced equipment and experienced material chemists, Alfa Chemistry can combine a variety of techniques to analyze the gas-phase activity of flame retardants, so as to analyze the decomposition products, toxicity, mode of action, decomposition pathway, etc. of flame retardants.
  • For different flame retardant mechanisms (inert gas dilution or chemical quenching of reactive radicals), our materials chemists provide the best analytical advice and solutions according to your product and specific needs. Below are some of our analytical capabilities to choose from.
  • Our Analytical CapabilitiesApplications
    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.
    Pyrolysis-Gas Chromatography
    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.
  • If your specific needs are not included in the above list, please feel free to contact us to discuss your specific detailed solution.
  • During the service project, if you have any questions about the analysis report or service, our flame retardant experts will answer you in time.

Why Choose Alfa Chemistry?

Experienced team of materials chemists

Leading flame retardant technology

Reliable quality and standards

Fast turnaround times and great prices

Comprehensive and systematic testing and analysis services

Research Information

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. [1]

Concentration profiles of phosphorous-containing compounds in flame after addition of TPPOConcentration profiles of phosphorous-containing compounds in flame after addition of TPPO [1]

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  1. Mark W.Beach. et al. (2008). "Studies of degradation enhancement of polystyrene by flame retardant additives," Polymer Degradation and Stability 93(9), 1664-1673.
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