A local green composite study: the effect of edible oil on the morphological and mechanical properties of PBS/bentonite composite
Author:
Phattarateera Supanut1ORCID, Ausab Rudeerat2, Jemkuntod Neungruthai2, Wiriya-amornchai Atiwat2
Affiliation:
1. National Metal and Materials Technology Center, National Science and Technology Development Agency, Thailand Science Park , Pathumthani , Thailand 2. Materials and Process Engineering Technology, Faculty of Engineering and Technology, King Mongkut’s University of Technology North Bangkok Rayong Campus , Bangkok , Thailand
Abstract
Abstract
Composites of a biodegradable thermoplastic aliphatic polyester, polybutylene succinate (PBS), with bentonite were investigated for morphological and mechanical properties. The bentonite was modified with soybean oil (SBO) and lard oil (LO) (2:98 clay:oil % by weight) by mechanical stirring and ultrasonication. The PBS/modified bentonite composite was prepared by using an internal mixer and processed by compression molding. Under bentonite modification conditions, XRD and SEM showed that the bentonite layers were broken into small layers, and the d-spacing between the layers was increased by edible oil molecules. A small plate like structure of modified bentonite composite was observed by SEM micrograph, which revealed short and long layer silicate structure non-directionally throughout the matrix phase. The mechanical properties of PBS were reinforced by this structure. The tensile modulus and elongation at break seem to depend on its directional bentonite. Interestingly, considerable improvement in impact strength was observed at over 2 wt% of clay. The impact strengths of PBS, PBS/modified BTN with SBO composite, and PBS/modified BTN with LO composite were increased from 1 to 1.5 and 2 kJ/m2, respectively. Comparatively, using LO modified bentonite had a better performance for increased interlayer and resulted in higher impact strength of the composite than that of SBO composite. The results demonstrated that PBS/modified bentonite using edible oil could be a potential alternative low cost, eco-friendly material with superior impact properties useful for further applications.
Publisher
Walter de Gruyter GmbH
Subject
Materials Chemistry,Polymers and Plastics,General Chemical Engineering
Reference30 articles.
1. Dehn, J., McNutt, S. R. Volcanic materials in commerce and industry. In The Encyclopedia of Volcanoes; Sigurdsson, H., Ed. Academic Press: Florida, 2015; pp. 1285–1294. 2. Yuan, G. D., Theng, B. K. G., Churchman, G. J., Gates, W. P. Clays and clay minerals for pollution control. Dev. Clay Sci. 2013, 58, 587–644; https://doi.org/10.1016/b978-0-08-098259-5.00021-4. 3. Davis, C. H., Mathias, L. J., Gilman, J. W., Schiraldi, D. A., Shields, J. R., Trulove, P., Sutto, T. E., Delong, H. C. Effects of melt-processing conditions on the quality of poly(ethylene terephthalate) montmorillonite clay nanocomposites. J. Polym. Sci. B Polym. Phys. 2002, 40, 2661–2666; https://doi.org/10.1002/polb.10331. 4. Jang, S. A., Shin, Y. J., Seo, Y. B., Song, K. B. Effects of various plasticizers and nanoclays on the mechanical properties of red algae film. J. Food Sci. 2011, 76, 30–34; https://doi.org/10.1111/j.1750-3841.2011.02089.x. 5. Hoke, G. D., Schmitz, M. D., Bowring, S. A. An ultrasonic method for isolating nonclay components from clay-rich material. Geochem. Geophys. 2014, 15, 492–498; https://doi.org/10.1002/2013gc005125.
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