Nanocomposite material comprising rubber and modified...

Details Nanocomposite material comprising rubber and modified... Nanocomposite material comprising rubber and modified...

C - Chemistry, Metallurgy

08

K

C08K 9/04 (2006.01) C08J 3/22 (2006.01) C08K 9/06 (2006.01) C08L 21/00 (2006.01)

Patent

CA 2632637

The present invention pertains to a nanocomposite material comprising rubber and a modified layered double hydroxide comprising: a charge-balancing organic ion having a first functional group and a second functional group, wherein at least part of the organic anions is chemically linked to the rubber through the second functional group; and/or a silane coupling agent having at least one alkoxysilane group and at least one reactive group, at least one alkoxysilane group being chemically linked to the layered double hydroxide, at least one reactive group being chemically linked to the rubber. The invention further pertains to a process for preparing the nanocomposite material or a precursor thereof.

L'invention concerne un matériau nanocomposite comprenant du caoutchouc et un hydroxyde double lamellaire modifié comprenant : un ion organique équilibreur de charge comprenant un premier groupe fonctionnel et un second groupe fonctionnel, au moins une partie des anions organiques étant chimiquement liée au caoutchouc au moyen du second groupe fonctionnel ; et/ou un agent adhésif au silane comprenant au moins un groupe alcoxysilane et au moins un groupe réactif, au moins un groupe alcoxysilane étant chimiquement lié à l'hydroxyde double lamellaire, au moins un groupe réactif étant chimiquement lié au caoutchouc. L'invention concerne également un procédé permettant de préparer le matériau nanocomposite ou son précurseur.

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