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06/Oct/2017
Fraunhofer LBFs and PINFAs research activities on the recycling of plastics containing halogen free flame retardants
Recycling is an important issue with regard to the
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01/Sep/2017
New pinfa video: How effective are flame retardants for fire safety?
A new video from PINFA, the Phosphorus, Inorganic
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04/Aug/2017
Recycling of plastic waste - curse or a blessing?
In our fast-paced „throwaway society“
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31/May/2017
Plastics for E&E applications, “fuse box meets dryer” 2017 in Würzburg
As in previous years „Kunststoffzentrum (SKZ
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01/Aug/2016
pinfa's first workshop in China confirms interest in halogen free FRs
In June 2016, over 250 people from academia, indus
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02/Nov/2015
1st International Asia-Oceania Symposium on Fire Safety Materials Science and Engineering (AOFSM’1 2015)
The 1st International Asia-Oceania Symposium on Fi
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Synergism

Today, flame retardants are mostly used as systems consisting of several components. The benefits of synergistic effects are particularly taken into account. Synergism means that the overall flame retardancy effect is higher than the sum of the single components effects.

A classical example is the synergy of antimony trioxide (ATO) with brominated or chlorinated compounds. ATO alone has no flame retardancy effect; with Br/Cl compounds, however, it is higher than the sum of the single effects.

Many synergistic systems based on phosphorous and nitrogen, metal hydroxides and salts have been developed in recent years. Examples are the synergy between metal phosphinates and melamine polyphosphate, as well as aluminum oxide hydrate (boehmite) or melamine polymetal phosphates.