Surface functionalization of MXene with gallic acid for enhanced UV aging resistance in SBS-modified asphalt: A study of interface interaction and molecular dynamics

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2025-02-02 DOI:10.1016/j.colsurfa.2025.136316

Denghui Ren , Wei Xiong , Shencheng Fan , Yating Luo , Xin Jin , Fang Lai , Zhenxia Zhao , Ruinan Pei , Jing Li

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引用次数: 0

Abstract

Graphene-like materials are poised to transform asphalt modification due to their superior mechanical and structural attributes. This study introduces a gallic acid-grafted MXene composite, designed via interface modulation, to enhance the UV aging resistance of styrene-butadiene-styrene (SBS) modified asphalt. The modifier exhibited a dense, wrinkled structure, increasing its specific surface area by 140 %. Molecular dynamics simulations revealed that (3-aminopropyl) triethoxysilane reduced the interaction energy between the modifier and asphalt by 6 %, while the diffusion coefficient decreased by approximately 17 %. The composite’s strong UV absorption and antioxidant capabilities significantly mitigated the UV-induced degradation of SBS modified asphalt. Aging indices, including the carbonyl index and aliphatic index, exhibited maximum percentage changes of 31.39 % and 1.3 %, respectively. Rheological assessments indicated improved elastic recovery and a reduction in stress sensitivity under high-temperature and UV-aging conditions. These findings demonstrate the potential of the proposed modifier to enhance both the durability and functional performance of SBS modified asphalt, making it a viable solution for sustainable, high-grade road construction in UV-intense regions.

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.