We acknowledge financial support from the Distinguished Young Scientists Funds (50725310) and Key Project Funds (50933001) of the National Natural Science Foundation of China, and the Key Project of Beijing Natural Science Foundation (2061002), and the RCUK China-UK Science Bridges Programme, through the Medical Research Council and the Engineering and Physical Sciences Research Council. We also appreciate the financial support from the Goodyear Tire & Rubber Company. Supporting Information is available online from Wiley Online Library or from the author.
Tough Bio-Based Elastomer Nanocomposites with High Performance for Engineering Applications†
Article first published online: 12 OCT 2011
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Engineering Materials
Volume 14, Issue 1-2, pages 112–118, February 2012
How to Cite
Wei, T., Lei, L., Kang, H., Qiao, B., Wang, Z., Zhang, L., Coates, P., Hua, K.-C. and Kulig, J. (2012), Tough Bio-Based Elastomer Nanocomposites with High Performance for Engineering Applications. Adv. Eng. Mater., 14: 112–118. doi: 10.1002/adem.201100162
- Issue published online: 7 FEB 2012
- Article first published online: 12 OCT 2011
- Manuscript Revised: 13 JUL 2011
- Manuscript Received: 20 JUN 2011
Biomass feedstock is a viable alternative to finite fossil fuel resources to provide many of the same—plus others that petrochemicals cannot—chemical building blocks required to fabricate durable and high-performance materials. We demonstrate here for the first time a new generation of synthesized elastomers, namely bio-based engineering elastomers (BEE). These are of particular significance because they are synthesized from monomers derived from biomass, by routes which are suitable for large scale production, and they exhibit thermo-mechanical properties at least equivalent to current commercial petrochemical-derived elastomers. Bio-based monomers in large scale production, such as sebacic acid, itaconic acid, succinate acid, 1,3-propanediol, and 1,4 butanediol are chosen to generate the first synthetic BEE matrix through melting polycondensation—a comparatively simple reaction scheme offering good control and the potential for low cost, large-scale production. A novel linear BEE, an almost non-crystalline copolyester elastomer with low glass transition temperature (Tg) containing double bonds is designed and synthesized using multiple monomers (to help suppress crystallization). Silica nanoparticles are then introduced into the BEE matrix to achieve significant strengthening and improved environmental stability. Chemical crosslinks formed by peroxide and the pendant double bonds in the copolyester macromolecules endow the BEE with both the necessary high elasticity and required environmental stability. The BEE nanocomposites obtained exhibit excellent thermomechanical properties, such as an ultimate tensile strength of 20 MPa.