'New tailor-made biopolymers produced from lignocellulosic sugars waste for highly demanding fire-resistant applications'

Thermoplastic elastomer by reactive blending of poly(butylene succinate) with ethylene-propylene-diene terpolymer and ethylene-1-butene rubbers

Poly(butylene succinate) (PBS) was melt blended with maleic anhydride"“grafted ethylene-propylene-diene terpolymer (EPDM-MAH) and maleic anhydride"“grafted ethylene-1-butene copolymer (EB-MAH) to obtain thermoplastic elastomers (TPEs) containing a biodegradable polyester. PBS/EB-MAH blend showed lower modulus and excellent strain recovery compared to PBS/EPDM-MAH blend due to the smaller rubber particle size. Tensile strength of PBS/EPDM-MAH blend was found to be significantly improved by annealing because of the increased interfacial reaction between PBS matrix phase and EPDM dispersed phase and the increased cross-linking in EPDM. As the result, it was found that the annealing process is effective for the improvement of the mechanical properties of PBS/MAH-grafted rubber blends.

» Author: Kittisak Jantanasakulwong, David Rohindra, Keisuke Mori, Keiichi Kuboyama, and Toshiaki Ougizawa

» Reference: Journal of Elastomers and Plastics April 2015 47: 215-231, first published on October 22, 2013 doi:10.1177/0095244313507805

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This project has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration