The feasible method of preparing modified asphalt was determined by observing the micro structure of the asphalt materials obtained with or without high speed dispersion.
通过比较有无采用高速剪切分散制成沥青材料的微观结构，确定了制备改性沥青材料时的合理方法。
2
The strengthen mechanism of micro particles is due to dispersion strengthening.
微米微粒的强化机理则主要归功于微粒的弥散强化作用。
3
When modification graft before emulsion dispersion in solvent was adopted, micro phase separation of soft and hard segments in molecular chains was enhanced greatly and its thermo-stability improved .