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Magnesium hydroxide/zinc borate/talc compositions as flame-retardants in EVA copolymer

Abstract : 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.
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Submitted on : Monday, June 28, 2021 - 10:05:15 AM
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A Durin-France, Laurent Ferry, J. Lopez-Cuesta, A Crespy. Magnesium hydroxide/zinc borate/talc compositions as flame-retardants in EVA copolymer. Polymer international, Wiley, 2000, 49 (10), pp.1101-1105. ⟨10.1002/1097-0126(200010)49:10<1101::AID-PI523>3.0.CO;2-5⟩. ⟨hal-03272054⟩



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