Nanocomposite material

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 2/44 (2006.01) C08K 3/22 (2006.01) C08K 7/00 (2006.01) C08L 33/06 (2006.01) C08L 77/02 (2006.01)

Patent

CA 2317643

The invention relates to a method for preparing a nanocomposite material based on a polymeric matrix and a layered double hydroxide, comprising the steps of: a) providing a layered double hydroxide which contains an amount of anions of at least 20 %, based on the total number of anions of the layered double hydroxide, which anions are compatible and/or reactive with the polymeric matrix; b) mixing the layered double hydroxide with a monomeric material for forming the polymeric matrix, in an amount such that the polymeric matrix is present in the nanocomposite material in an amount of at least 50 % by weight, based on the nanocomposite material; c) polymerizing the monomeric material to form the polymeric matrix. The invention further relates to a nanocomposite material obtainable by such method and to a shaped article manufactured from such nanocomposite material.

Cette invention concerne un procédé de préparation d'un matériau nano-composite qui comprend une matrice polymère ainsi qu'un hydroxyde double stratifié. Ce procédé comprend les étapes suivantes: (a) préparer un hydroxyde double stratifié contenant une quantité d'au moins 20 % d'anions, par rapport au nombre total d'anions dudit hydroxyde double stratifié, qui sont compatibles et/ou réactifs avec la matrice polymère; (b) mélanger l'hydroxyde double stratifié à un matériau monomère de manière à former la matrice polymère, ceci dans une quantité telle que la matrice polymère représente au moins 50 % en poids du matériau nano-composite; et (c) polymériser le matériau monomère de manière à former la matrice polymère. Cette invention concerne également matériau nano-composite obtenu d'après ce procédé, ainsi qu'un article mis en forme fabriqué à partir de ce matériau nano-composite.

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