Abstract
Acid treated multiwalled carbon nanotubes (MWNTs) were incorporated into glycerol plasticized soy protein to form MWNTs/soy protein nanocomposite plastics. The influence of the polar groups grafted on carbon nanotubes by acid treatment on the compatibility would be studied. The results showed that aggregation of carbon nanotubes was reduced by acid treatment and some polar groups were grafted on the nanotubes. The modified MWNTs were dispersed in soy protein matrix homogeneously and exhibited good compatibility with soy protein matrix. The crystalline structure of soy protein was not changed by MWNTs. The mechanical properties were dramatically enhanced through MWNTs incorporation due to the strong hydrogen bonding between them and the homogeneously dispersion of MWNTs in protein matrix, indicating the reinforcing effect of MWNTs in soy protein matrix. The water uptake was reduced and the thermal stability was enhanced by MWNTs incorporation.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (51373004 and 51203004), Innovation Ability Promotion Plan of Beijing Municipal Commission of Education (PXM2013_014213_000097), Beijing Top Young Innovative Talents Program (2014000026833ZK13), Open Funding of Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province (2016REWB14).
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Aimin Xiang and Gaiping Guo have contributed equally to this work.
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Xiang, A., Guo, G. & Tian, H. Fabrication and Properties of Acid Treated Carbon Nanotubes Reinforced Soy Protein Nanocomposites. J Polym Environ 25, 519–525 (2017). https://doi.org/10.1007/s10924-016-0833-0
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DOI: https://doi.org/10.1007/s10924-016-0833-0