Magnesium hydroxide/zinc borate/talc compositions as flame-retardants in EVA copolymer
Résumé
The fire-resistance of EVA filled with ternary systems (magnesium hydroxide/zinc borate/talc) has been investigated. The release of water from Mg(OH)2 seemed to be the predominant phenomenon which acts in relation to fire-resistance. The presence of talc as a minor component, mainly in binary compositions by partial substitution of Mg(OH)2, appeared to enhance the flame-retardant properties. It acts by forming a diffusion barrier which is able to limit the transfer of degradation products and oxygen. Synergism was also noticed between talc and zinc borate at constant Mg(OH)2 loading in ternary compositions.
Domaines
Sciences de l'ingénieur [physics]
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magnesium-hydroxide-zinc-borate-talc-compositions-as-flame‐retardants.pdf (157.77 Ko)
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