Titre du document / Document title

Structure and properties of natural rubber and modified montmorillonite nanocomposites

Auteur(s) / Author(s)

MAGARAPHAN Rathanawan ⁽¹⁾ ; THAIJAROEN Woothichai ⁽¹⁾ ; LIM-OCHAKUN Ratree ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, THAILANDE

Résumé / Abstract

Montmorillonite clay was organically modified by primary and quaternary ammonium salts (having C₁₂-C₁₈). The modified clay was added to a solution of natural rubber in toluene at various contents. Characterization of the structure of the nanocomposites was performed by using x-ray diffraction and transmission electron microscope. The results showed that the silicate layers of the clay were expanded so that the exfoliated nanocomposites were obtained at clay content below 10 phr; above that the nanocomposites became partially exfoliated. Moreover, long primary amine showed more improved mechanical properties than the quaternary one (at the same carbon numbers). The longer organic modifying agents resulted in better expansion of silicate layer distance indicating more intercalation of natural rubber molecules in between clay galleries. The curing properties were also improved. It was found that a small loading of 7 phr is enough to bring good mechanical properties in comparison to those of high structure silica filled and carbon black filled natural rubber vulcanizates.

Revue / Journal Title

Rubber chemistry and technology   ISSN 0035-9475   CODEN RCTEA4 

Source / Source

2003, vol. 76, n^o2, pp. 406-418 [13 page(s) (article)] (25 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Chemical Society, Akron, OH, ETATS-UNIS  (1928) (Revue)

Mots-clés anglais / English Keywords

Experimental study ; Concentration effect ; Mechanical properties ; Dispersion degree ; Morphology ; Montmorillonite ; Organic clay ; Vulcanizate ; Natural rubber ; Nanocomposite ;

Mots-clés français / French Keywords

Etude expérimentale ; Effet concentration ; Propriété mécanique ; Degré dispersion ; Morphologie ; Montmorillonite ; Argile organique ; Vulcanisat ; Caoutchouc naturel ; Nanocomposite ;

Mots-clés espagnols / Spanish Keywords

Estudio experimental ; Efecto concentración ; Propiedad mecánica ; Grado dispersión ; Morfología ; Montmorilonita ; Arcilla orgánica ; Vulcanizado ; Caucho natural ; Nanocompuesto ;

Localisation / Location

INIST-CNRS, Cote INIST : 3539, 35400011998466.0090