Melt-compounded butadiene rubber nanocomposites with improved mechanical properties and abrasion resistance
✍ Scribed by Min-Su Kim; Dong-Woo Kim; Subhendu Ray Chowdhury; Gue-Hyun Kim
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 179 KB
- Volume
- 102
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Abstract
Hydrophobic polymers such as polyethylene and polypropylene are very difficult to use for preparing nanocomposites without a compatibilizer. However, in this study, polybutadiene rubber (BR; a hydrophobic polymer) nanocomposites were produced successfully without a compatibilizer with a melt‐compounding method. Transmission electron microscopy showed an intercalated and exfoliated clay morphology in the polymer matrix, which led to increased mechanical properties. The tensile and tear strengths of the BR/Cloisite 20A hybrids were 4.4 times and 2 times larger than that of BR, respectively. The rebound resilience, compression set, and abrasion resistance were also improved by the addition of organoclay. The abrasion resistance of BR/Cloisite 20A was approximately 2 times larger than that of BR. The cure time (t~90~), scorch time (t~2~), and their difference (t~90~ − t~2~) of the BR/organoclay hybrids were much reduced than those of BR. Thus, organoclays behaved as good fillers and effective accelerant agents for BR vulcanization. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 2062–2066, 2006