Preparation of nanocompu00f3sito of elastu00c8mero and clay platelets exfoliadas, compositions of rubber composed of this nanocompu00f3sito and articles of manufacture, including tires

摘要

Preparation of nanocompu00f3sito of elastu00c8mero and clay platelets exfoliadas, compositions of rubber composed of this nanocompu00f3sito and articles of manufacture, including tires. This invention relates to the preparation of nanocomposites consisting of elastomer and a dispersion of a inchu00e1vel clay with water, in multiple layers.Intercalated and at least partially exfoliada (e.g. smectite clay).The invention also relates to rubber compositions comprised of such nanocompu00f3sito, articles of manufacture, for example, tires and industrial products such as, for example, conveyor belts.Power transmission belts and hoses, containing at least one component composed of the nanocompu00f3sito or composition of rubber.An adaptation to this particular rubber composition is considered for the components of tire rubber, for example, treads.In a significant substitution of the strengthening of smoke black may be desirable to reduce heat buildup to the durability of the tire, and reduction of the weight of the tire to fuel economyThe vehicle, for example, treads for tires of aircraft.The nanocompu00f3sito is prepared by the addition of a suspension in water of clay particles in water to a inchu00e1veis aqueous emulsion of particles elastomericas anionic (negatively charged).To form a mixture to which an amine with at least two centres amine in the form of a polymeric quaternary amine cationic (positively charged) or ethylene polyamine is subsequ00b3entemente ADICloned for mid-term,How to exfoliar at least partially clay particles swollen with water by an ion exchange within the galleries of the clay in multiple layers with interchangeable for cations and for Au ionsXiliar in promoting the coagulation of the elastomer and clay particles resulting from and formation of its nanocompu00f3sito.The coagulation can be helped by the addition of an acid or salt / acid to reduce the pH and thus stabilize the emulsion.The aqueous emulsion can be, for example, of particles of a copolymer of styrene / butadiene anionic synthetic or rubber particles of the CIS 1,4 - polyisoprene natural anion (e.g.,Natural rubber latex).