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The Aging Resistance of Asphalt Containing a Compound of LDHs and Antioxidant

机译:含有LDHs和抗氧化剂的沥青的抗老化性

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Effects of layered double hydroxides (LDHs), antioxidant (Irganox 1010) and their compounds on physical and rheological properties and chemical compositions of asphalt were investigated to evaluate the antiaging performance. Results indicate that Irganox 1010 modified asphalt shows good thermo-oxidative aging resistance, LDHs modified asphalt shows good ultraviolet (UV) aging resistance, while the compound consisting of LDHs and Irganox 1010 modified asphalt exhibits excellent resistance to both thermo-oxidative aging and UV aging. Furthermore, changes of chemical compositions of asphalt show that Irganox 1010 peptizes the asphaltenes, and the compound of LDHs and Irganox 1010 exhibits the most effective inhibition of gelatinization of asphalt binder during aging process.
机译:研究了层状双氢氧化物(LDHs),抗氧化剂(Irganox 1010)及其化合物对沥青的物理流变性能和化学组成的影响,以评估其抗老化性能。结果表明,Irganox 1010改性沥青显示出良好的抗热氧化老化性能,LDHs改性沥青显示出良好的抗紫外线(UV)老化性能,而由LDHs和Irganox 1010改性沥青组成的化合物显示出优异的抗热氧化老化性和UV老化性能。此外,沥青化学成分的变化表明,Irganox 1010会胶溶沥青质,而LDH和Irganox 1010的化合物在老化过程中表现出最有效的抑制沥青胶结胶凝的作用。

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