Preparation,Characterization and Hot Storage Stability of Asphalt Modified by Waste Polyethylene Packaging  

作　　者：Changqing Fang Ying Zhang Qian Yu Xing Zhou Dagang Guo Ruien Yu Min Zhang 

机构地区：[1]School of Printing and Packaging Engineering,Xi'an University of Technology [2]School of Materials Science and Engineering,Northwestern Polytechnical University [3]School of Materials Science and Engineering,Xi'an Jiaotong University

出　　处：《Journal of Materials Science & Technology》2013年第5期434-438,共5页材料科学技术（英文版）

基　　金：support provided by the National Natural Science Foundation of China(Grant Nos. 51002118 and 51172180);Shaanxi Programs for Science and Technology Development(2011);Xi'an Programs for Industrial Applications(Grant No.CXY1129-3);the Beilin District Programs for Science and Technology Development(Grant No. GX1109)

摘　　要：Waste polyethylene packaging （WPE） was used to modify asphalt, and hot storage stability of the modified asphalt was studied in this paper. The morphological change and component loss of WPE modified asphalt were characterized by fluorescence microscopy, Fourier transform infrared spectroscopy （FT-IR）, differential scanning calorimetry （DSC）, thermogravimetry （TG） and isolation testing. In addition, the mechanism of the hot storage stability of WPE modified asphalt was discussed. The results showed that the modification of asphalt with WPE was a physical process. It was found that the filament or partly network-like structure formed in the modified asphalt system was beneficial to improving the hot storage stability. Moreover, the addition of WPE resulted in a decrease in both the light components volatilization and the macromolecules decomposition of asphalt. It was demonstrated that when the content of WPE in matrix asphalt was less than 10 wt%, the service performances of modified asphalt could be better.Waste polyethylene packaging （WPE） was used to modify asphalt, and hot storage stability of the modified asphalt was studied in this paper. The morphological change and component loss of WPE modified asphalt were characterized by fluorescence microscopy, Fourier transform infrared spectroscopy （FT-IR）, differential scanning calorimetry （DSC）, thermogravimetry （TG） and isolation testing. In addition, the mechanism of the hot storage stability of WPE modified asphalt was discussed. The results showed that the modification of asphalt with WPE was a physical process. It was found that the filament or partly network-like structure formed in the modified asphalt system was beneficial to improving the hot storage stability. Moreover, the addition of WPE resulted in a decrease in both the light components volatilization and the macromolecules decomposition of asphalt. It was demonstrated that when the content of WPE in matrix asphalt was less than 10 wt%, the service performances of modified asphalt could be better.

关 键 词：ASPHALT Waste polyethylene packaging Hot storage stability MECHANISM 

分 类 号：X705[环境科学与工程—环境工程]