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Issue 19, 2017
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Super impact absorbing bio-alloys from inedible plants

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Abstract

Injection molded bio-alloys based on polyamide 11 (PA11), 100% bio-based plastics from inedible plants, and polypropylene (PP) mixed with the maleic anhydride-modified ethylene-butene rubber copolymer (m-EBR) were prepared using a twin-screw extruder. The mechanical properties and morphologies of the bio-alloys were investigated using flexural tests, Charpy notched impact tests, field emission-scanning electron microscopy (FE-SEM), Raman spectroscopy, and transmission electron microscopy (TEM). The bio-alloy had a flexural modulus of 1090 ± 20 MPa and a Charpy notched impact strength of 98 ± 5 kJ m−2, which is superior to that of polycarbonates. The FE-SEM observations revealed that the bio-alloy has a unique “salami-like structure in a co-continuous phase”, and the TEM observations showed that some m-EBR formed 10 to 20 nm wide continuous interphases between the PP and PA11 matrices. Continuous rubber interphases played an important role in enhancing the impact strength. The bio-alloys exhibited good rigidity and excellent impact strength, making them feasible for applications in automobiles and other industries.

Graphical abstract: Super impact absorbing bio-alloys from inedible plants

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Supplementary files

Article information


Submitted
20 Jun 2017
Accepted
11 Aug 2017
First published
11 Aug 2017

This article is Open Access

Green Chem., 2017,19, 4503-4508
Article type
Communication

Super impact absorbing bio-alloys from inedible plants

J. Kawada, M. Kitou, M. Mouri, Y. Kato, Y. Katagiri, M. Matsushita, T. Ario, O. Kitou and A. Usuki, Green Chem., 2017, 19, 4503
DOI: 10.1039/C7GC01842H

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