在深入研究比较不同稻、麦秸秆的化学组成、工业组成，元素组成以及热解特性的异同的基础上，研究经常规粉碎方法制备的不同粒径稻、麦秸秆的物相结构及其理化特性差异；利用CJM-SY-B纳米冲击磨，研究物料水分含量、磨介质充填率、进料粒径、粉碎时间等工艺参数对秸秆超细粉碎效果的影响，进行秸秆超细粉碎的工艺参数优化；研究超细化秸秆粉体解团聚方法；研究表征超细秸秆粉体的物相结构和纤维素、半纤维素、木质素、可溶性纤维、不可溶性纤维等化学组成以及持水力、膨胀力、亲油性、阳离子交换能力等功能特性的变化规律及其相关性，揭示超细粉碎秸秆的改性机理。研究超细粉碎对提高秸秆液化、水解的作用效果以及超细化秸秆粉体作为增稠剂、稳定剂、表面活性剂应用的可行性，探索秸秆高值化、创新利用新技术途径。研究工作对于系统掌握不同尺度介观下粉碎秸秆物料的行为特征具有重要科学意义，对于促进秸秆高效、高值、全生物量利用具有实际应用价值。

Based on the comparisons study on physiochemical compositions analysis, ultimate analysis, proximate analysis and pyrolysis characteristics of different wheat and rice straw samples, representative wheat and rice straw with different particle size distribution will be produced by sieve-based grinding and jet milling, and characterized and compared by their surface structure, physiochemical properties, such as moisture, cellulose, hemi-cellulose, lignin and rheology etc.. By means of the CJM-SY-B ultrafine vibration grinding mill, the effects of parameters, such as inlet particle size, grinder moisture, pulverizing medium filling rate and pulverizing time on the ultrafine grinding will be studied for optimizing the grinding process and obtaining ultrafine particles. Experiments will be conducted to attempt to overcome the aggregation of glutamine particles in the ultrafine grinding process. To interpreting the acting mechanism of ultrafine grinding on characteristic modification, the differences and correlations of the ultrafine powders will also be characterized by their particle size distribution, crystallinity, thermo gravity analysis and their hydration and antioxidant properties, including water holding capacity, water retention capacity, swelling capacity, oil holding capacity, cation exchange capacity, distribution of fiber components etc.. To explore the feasibility of ultrafine straw powder's innovative application, test trials focusing on liquefaction, enzymatic degradation and ultrafine straw powder as thickening agent, stabilizer or surface active agents in polyphase system will be conducted. Research results will be valuable for improving the knowledge about straw and finding new value added applications.