Preparation and properties of styrene butadiene rubber/natural rubber/organo-bentonite nanocomposites prepared from latex dispersions

• Published in: Applied clay science Vol. 46; no. 3; pp. 241 - 244
• Main Authors: Gu, Zheng, Song, Guojun, Liu, Weisheng, Li, Peiyao, Gao, Li, Li, Hanhua, Hu, Xiong
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.11.2009; Elsevier
• Subjects: Earth sciences; Earth, ocean, space; Emulsion intercalation; Exact sciences and technology; Mineralogy; Nanocomposites; Natural rubber (NR); Silicates; Styrene butadiene rubber (SBR); Swelling behavior; TGA; Styrene butadiene rubber (SBR); Natural rubber (NR); Nanocomposites; Swelling behavior; Emulsion intercalation; TGA; swelling; mechanical properties; smectite; montmorillonite; clay minerals; sheet silicates; silicates; transmission electron microscopy; dispersion; particles; stability
• ISSN: 0169-1317; 1872-9053
• DOI: 10.1016/j.clay.2009.08.010

Styrene butadiene rubber (SBR)/natural rubber (NR)/organo-bentonite nanocomposites were prepared from emulsions. The structure of the nanocomposites was characterized by TEM and XRD. The effect of organo-bentonite on the mechanical properties, thermal stability and swelling behavior was investigated. TEM and XRD confirmed that rubber chains were intercalated into the organo-montmorillonite particles. When the organo-bentonite content was lower than 12 mass%, the nanocomposites showed excellent mechanical properties. The addition of a small amount of OMMT greatly improved thermal stability and swelling behavior, which was attributed to the good barrier properties of the dispersed and partially exfoliated organo-montmorillonite particles. Organo-bentonite addition had little effect on the score and cure times of the nanocomposites, while increased the maximum and minimum torque.