Wu Min, Gao Fei, Yin Dong-Min, Luo Qi, Fu Zong-Qiang, Zhou Yu-Guang
College of Engineering, China Agricultural University, No. 17 Qinghua East Road, Haidian District, Beijing 100083, China.
School of Materials Science and Mechanical Engineering, Beijing Technology and Business University, No. 11 Fucheng Road, Haidian District, Beijing 100048, China.
Polymers (Basel). 2018 Aug 2;10(8):855. doi: 10.3390/polym10080855.
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, 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).
在本研究中，采用超细粉碎工艺对玉米秸秆（CS）进行粉碎，以生成具有不同粒径（9~16μm）的粉末。分析了CS样品的木质素、半纤维素和纤维素含量、粒径分布以及扫描电子显微镜（SEM）图像。将不同粒径的超细CS以不同量添加到淀粉基薄膜（SF）中。与原始淀粉基薄膜（SF， 0.05）相比，所得玉米秸秆淀粉基薄膜（CS/SF）似乎具有显著不同的性能。采用幂律模型和伯格模型研究动态力学分析，结果表明CS/SF的力学性能优于SF，尤其是球磨0.5⁻1.5小时的CS/SF和添加量为15%的CS/SF。幂律模型和伯格模型也与实验数据呈现出很强的相关性（>0.90）。
