CAJ | 학술논문

本文首先通过一定的选择原则在尽可能大的范围内初步确定用于改性沥青的纳米材料种类，然后通过内掺法及内掺后超声波分散两种手段制备纳米改性沥青，并通过比较不同种类纳米改性沥青的针入度、软化点、延度三大指标及布氏粘度指标，最终确定A为基质沥青最理想的纳米材料改性荆。采用硅烷偶联剂KH550、聚乙烯亚胺PEI和表面活性剂硬脂酸三种分散剂对A进行表面改性，并制备相应的改性沥青。通过改性沥青的三大指标及粘度指标，对三种分散剂的表面改性效果进行比较，并最终确定相对纳米材料2％剂量的硅烷偶联剂KH550为A最佳分散剂。
본문수선통과일정적선택원칙재진가능대적범위내초보학정용우개성력청적납미재료충류，연후통과내참법급내참후초성파분산량충수단제비납미개성력청，병통과비교불동충류납미개성력청적침입도、연화점、연도삼대지표급포씨점도지표，최종학정A위기질력청최이상적납미재료개성형。채용규완우련제KH550、취을희아알PEI화표면활성제경지산삼충분산제대A진행표면개성，병제비상응적개성력청。통과개성력청적삼대지표급점도지표，대삼충분산제적표면개성효과진행비교，병최종학정상대납미재료2％제량적규완우련제KH550위A최가분산제。
Firstly, the types of nano-materials for asphalt modification were initially identifiedwithin the scope as large as possible by certain principles, then prepared nano-modified asphalt by means of the internally mixed method and the ultrasonic dispersion after using the method. Finally the nano-material A was determined as the most appropriate nano-material modifier of asphalt by comparing penetration, softening point ,ductility and the Brookfield viscosity of different types of the nano-modified asphalts. Surface of the nano-material A was modified by silance coupling agent KH550, polyethylene imine PEI and stearic acid. The corresponding modified asphalt was prepared. The effect of surface modification of the three dispersants were compared through the three indicators of modified asphalt and viscosity index. At last, 2%silance coupling agent KH550 related to the amount of the nano-materials was determined as the most appropriate dispersant of the nano-material A.