Toughening epoxy asphalt binder using core-shell rubber nanoparticles

Wufeng Su,Xiaocheng Han,Jie Gong,Zhonghua Xi,Junsheng Zhang,Qingjun Wang,Hongfeng Xie

Construction and Building Materials（2020）

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摘要

•Core-shell rubber (CSR) nanoparticle toughened epoxy asphalt (EA) has been developed.•The toughness of the pure EA increases by 2-fold with only addition of 1 wt% CSR.•The shell of CSR is broken and the core of CSR swells in the EA.•Newly micro-scale CSR phase uniformly disperses in the epoxy phase of the EA.•CSR nanoparticles alters the mechanism of phase separation of the pure EA.

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关键词

Epoxy asphalt,Polymer modified asphalt,Polymer blend,Core-shell rubber,Toughness,Phase separation,Mechanical properties,Thermal stability,Glass transition,Laser scanning confocal microscopy

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