Environmentally-friendly Flame retardants
VHM’s portfolio of flame retardants includes a full line of environmentally friendly phosphate flame retardants.
Intumescent coatings are the ideal fire-protection solution for applications such as paints and coatings on the steel structures of buildings. Ammonium polyphosphates (APP) are key ingredients for intumescent coatings. They act as charring initiators and influence the performance and stability of the finishing coating. The functional coated grades combine the compatibility to various coating matrices designed for different requirements. The char improvers enlarge the fire protection.
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Brominated Flame Retardants
Brominated compounds are used for a number of purposes, but the major use is as flame retardants. Bromine interacts with the fire cycle in the gas phase to stop the chemical chain reaction that leads to flame formation and a self-sustaining fire. In essence, brominated flame retardants either prevent a fire from starting in the first place, or significantly slow a fire down. Brominated compounds also can be added to materials like plastic without altering their properties. As a result, they can be used in many applications. Highly effective, brominated flame retardants are used in a variety of materials, including textiles, electronics, building materials, plastics and foams. They are often used in combination with an antimony trioxide synergist.
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Antimony Trioxide
Also known as antimony oxide or Sb2O3, is the most widely produced compound of elemental antimony. Typical applications for antimony trioxide include flame retardant synergist for use in plastics, rubber, paints, paper, textiles, and electronics; polyethylene terephthalate polymerization catalyst; a clarifying agent for glass; an opacifier for porcelain and enamel; and a white pigment for paint. When used as a flame retardant, antimony trioxide is often used in combination with halogenated compounds. Antimony trioxide is used as a synergist to enhance the activity of the halogenated flame retardant. In the absence of antimony trioxide about twice as much halogenated compound would be needed to reach the same level of flame retardancy.
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