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Chapter 2

MHE® - COMPOSITION & FUNCTIONALITY

  • COMPOSITION
    MHE® is a modern natural non-toxic and eco-friendly, in nature completely biodegradable, flame retardant that only consists of food grade chemicals like you find in the daily foodstuff, in respect of approved chemical quantities and concentrations.
    MHE® has been developed from a low carbon sustainable innovation technology.
  • The excellent flame retardant effect of MHE® depends on the unique organic salt composition.

  • DECOMPOSITION
    The MHE® product development has been focused on the host materials and especially on the decomposition substances released when attacked by fire.
    During decomposition different host materials release different chemical radicals that MHE® flame retardant is designed to capture and bind.
  • ORGANIC SALT
    MHE® is a complex organic salt, a chemical reaction between weak organic acids and in-organic alkali hydroxides.
    The organic salt both contains covalent and ionic bonds.
    MHE® contains suitable radicals designed to be released at different temperatures in a certain order when attacked by fire.
    The MHE® radicals take care of the chemical radicals, released from the host material under decomposition.
  • BONDS
    The mixture of bonds are essential in terms of strength.
  • PARAMETERS
    All fire fighting is based on two parameters - extinguishing and cooling.
    A good balance between said parameters gives the best result stopping fires.
    To cool efficiently put demands on added material with capability to absorb large amount of thermal heat energy very quickly.
    Water has the lowest energy potential known today.
    To effectively extinguish put demands on chemical additives with intumescent properties.
    Intumescent processes are characterized by swelling char surface insulation layers in mission to chemically take care of flammable gases released by heat and stop them from supporting open flames.
    In other words, intumescent processes improve extinguishing.
  • INTUMESCENT
    Intumescent requires the following,
    1. A donator of protons.
    2. Volatile cations
    3. Non-flammable gas
    4. Carbon-source

  • NATURAL NON-TOXIC
    There are many different flame retardant products on the global market.
    MHE® is probably the only one which is naturally absolute non-toxic, environmentally friendly and in nature biodegradable of all flame retardants known today, aimed for synthetic host material treatment.
    However, it is the only one purely based on food grade chemicals, like you find in your daily foodstuff, and that are a natural part of the human nutrition as long as the history tells.
  • PARTICLE SIZE
    The powder particle size of the flame retardant additives is one of the most important parameters to consider.
    All chemical reactions take place on the surface of the particles. That put demands on very tiny particles (nano) to maximize the surface area ref to the total volume of particles added.
    For example, let's assume a sperical particle. The volume describes by V=(0.75pi)r3 and the Area A=(4pi)r2.
    If r=2 then V=(0.75pi)8 and A=(4pi)4. If the radius decreases with 50% r=1 then V=(0.75pi)1 and A=(4pi)1.
    It means that in the spherical volume at r=2 it contains 8 spherical volumes with r=1. Meanwhile the Area of the 8 volumes with r=1 gives a total area of 8A=(4pi)8 which compared to the spherical volume with r=2 is twice the area size.
    In other words, reducing the particle size with 50% will double the exposed area of the same volume.
    It reduces the required particle weight load, as all chemical reaction takes place on the surface area of the particles.
    But also it reduces the eventual impact it might have on the host material mechanical property.
    The less powder particle size, the more particle surface area exposed for chemical reactions per weight load.
    In other words expressed: the less added particle weight load, the less impact on the host material mechanical property.

  • DISPERSION
    Another important parameter concerns dispersion. It is difficult to disperse very tiny powder particles homogeneously into a liquid.
    High-speed share mixers (RPM > 5k) often might solve the dispersion matter.
    However, Ultra Sonic Technology solves the dispersion matter most cost-efficiently.
  • DRYNESS
    The dry-substance parameter is of high importance in extruder applications.
    A dry substance of at least 99.8% is required to eliminate the risk of vapor to occur during industrial extruder processes.
    Except of extruder applications particle crystal water might improve the flame retardant functionality on fire. But mostly the particle crystal water vaporize during most industrial material heat processes.
  • IN SUMMARY

  • MHE® meets expert demands on a flame retardant, in terms of requested Fire Safety Standards, production cost and adaptive chemical design.

  • MHE® offers a unique combination of low carbon emission technology, an excellent thermal energy absorption and intumescent reactions.

  • Thanks to the natural non-toxic benefit, cost advantage and developed production methods, MHE® can assist to save lives and property, globally.
  • MHE® FR ADDITIVES - AN OUTSTANDING RESPONSE IN MEDIA BY
    AWARD NOMINATIONS 2003/2004/2005/2006/2007/2008/2009/2010

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