With the rapid development of science and technology, synthetic polymer materials such as plastic, rubber, fiber has come up. Most polymer composed of carbon, hydrogen, but their highly flammable brings a lot fire hazard to people's life. Therefore, the requirements to polymer material flame retardant also highlight. Add effective flame retardant is a more common method.
Flame retardant is divided into halogen flame retardant and halogen free flame retardant. Halogen-containing flame retardants that contain Cl, Br and f elements. Halogen-free flame retardant includes phosphorus series flame retardants, inorganic flame retardant magnesium hydroxide, aluminum hydroxide, zinc Borate, etc. Besides, halogen-free flame retardants include intumescent flame retardant and a number of special purpose fire retardant.
There are wide range of halogen-free flame retardant, they are mainly inorganic and organic flame retardants. Currently, consumption of this flame retardant in industry mainly are phosphorus (phosphonic) acid (includes halogen-containing derivative), zinc Borate, hydroxide, magnesium hydroxide, red phosphorus and antimony trioxide and so on.
Halogen-free flame retardant is one of the fastest growing material additives. The function of this product is to enable the non-fire-retardant materials with flame retardant properties. It does not burn easily or self-extinguishing under certain conditions. As halogen-free flame retardant technology advances, there are more and more kinds of halogen-free flame retardant. and its performance has been significantly improved.
Nowadays, the function of this kind of flame retardant can be divided into two types: one is slow down the fire and stop the fire from spreading, by way of multiple function principle suppress the combustion reaction; the other is let the surface rapid foaming expanding and carbonation to form a protective.
From the perspective of overall trends on the international world of flame retardant product performance requirements become more stringent. Now, the main development trend of non-halogen flame retardant as follows: non-halogenated; halogen-free flame retardant ultrafine; halogen-free flame retardant surface treatment; study of halogen-free flame retardant system synergies. More details will be added next time. If you have interest, please follow our linkedin page okchem.com, thanks!