Preparation, Structure, and Properties of Modified Asphalt with Waste Packaging Polypropylene and Organic Rectorite

The modified asphalt with waste packaging polypropylene (WPP) and WPP/organic rectorite (OREC) was prepared by the melt blending method. The effects of OREC on the physical and aging properties of WPP-modified asphalt were studied. The morphologies, microstructure, and thermal properties of WPP-modi...

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Bibliographic Details
Published in:Advances in materials science and engineering 2019-01, Vol.2019 (2019), p.1-9
Main Authors: Zhang, Qingling, Fang, Changqing, Fu, Qiangang, Cheng, Youliang, Lu, Chan
Format: Article
Language:English
Subjects:
Asphalt pavements
Blending effects
Chemical industry
Construction
Deformation
Ductility
Epoxy resins
Fluorescence
Fourier transforms
High temperature
Materials fatigue
Materials science
Melt blending
Morphology
Nanomaterials
Packaging
Petroleum
Polyethylene
Polymers
Polypropylene
Rheology
Roads & highways
Scrap
Storage stability
Thermal stability
Thermodynamic properties
Thermogravimetry
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Summary:The modified asphalt with waste packaging polypropylene (WPP) and WPP/organic rectorite (OREC) was prepared by the melt blending method. The effects of OREC on the physical and aging properties of WPP-modified asphalt were studied. The morphologies, microstructure, and thermal properties of WPP-modified asphalt and WPP/OREC-modified asphalt were characterized by fluorescence microscopy, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetry (TG). The results show that the composite-modified asphalt exhibits excellent ductility and plasticity when the contents of WPP and OREC are 4 wt. % and 1.5 wt. %, respectively. The deformation ability, softening point, ductility, and high-temperature storage stability of WPP-modified asphalt can be improved by adding the appropriate content of OREC. It is demonstrated that the composite-modified asphalt has an outstanding operational performance when the content of OREC is in the range of 1.5–2 wt. %. Compared with base asphalt, the high temperature performance of WPP-modified asphalt and WPP/OREC-modified asphalt is also improved significantly.
ISSN:1687-8434
1687-8442
DOI:10.1155/2019/5362795