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Polymers 2018, 10(8), 855; https://doi.org/10.3390/polym10080855

Processing of Superfine Grinding Corn Straw Fiber-Reinforced Starch Film and the Enhancement on Its Mechanical Properties

1
College of Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, China
2
School of Materials Science and Mechanical Engineering, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing 100048, China
3
Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
4
National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Received: 10 July 2018 / Revised: 30 July 2018 / Accepted: 30 July 2018 / Published: 2 August 2018
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Abstract

In this study, corn straw (CS) was reduced in size using the superfine grinding process to generate powders with particles of varying sizes (9~16 μm). The lignin, hemicellulose, and cellulose content; particle size distribution; and scanning electron microscopy (SEM) of the CS samples were analyzed. Superfine CS, of varying particle sizes, was added to the starch-based films (SF) in various amounts. The resulting corn straw starch-based films (CS/SFs) appeared to have significantly different properties, compared to the original starch-based film (SF, p < 0.05). The power law model and Burger’s model were used to investigate the dynamic mechanical analysis, which indicated that the mechanical properties of CS/SF performed better than that of SF, especially CS/SFs at 0.5–1.5 h ball milling and CS/SFs at a 15% addition amount. The power law model and Burger’s model also presented a strong correlation with the experimental data (>0.90). View Full-Text
Keywords: corn straw; superfine grinding; starch-based film; mechanical properties corn straw; superfine grinding; starch-based film; mechanical properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Wu, M.; Gao, F.; Yin, D.-M.; Luo, Q.; Fu, Z.-Q.; Zhou, Y.-G. Processing of Superfine Grinding Corn Straw Fiber-Reinforced Starch Film and the Enhancement on Its Mechanical Properties. Polymers 2018, 10, 855.

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