老化前后塔河沥青质的结构表征及分散性能影响

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引用格式：，等. 老化前后塔河沥青质的结构表征及分散性能影响[J]. 当代化工，2026，55（4）：801-805.

LIU Tianhong， XU Lingzi， MA Cheng， et al. Structural Characterization and Dispersion Effect of Tahe Asphaltene before and after Aging[J]. Contemporary Chemical Industry， 2026， 55（4）： 801-805.

（辽宁石油化工大学石油化工学院， 113001）

中图分类号：TQ031.2

文献标志码：A

文章编号：1671-0460（2026）04-0801-06

Structural Characterization and Dispersion Effect of Tahe Asphaltene before and after Aging

LIU Tianhong， XU Lingzi， MA Cheng， LUO Genxiang

（School of Petrochemical Engineering， Liaoning Petrochemical University， Fushun Liaoning 113001， China）

Abstract： Elemental analysis （EA）， gel permeation chromatography （GPC） and proton nuclear magnetic resonance spectroscopy （ 1 H NMR） were used to analyze Tahe asphaltene before and after aging. A salicylic acid polyisobutylene succinimide dispersant was synthesized using polyisobutylene succinic anhydride and 4-Aminosalicylic acid as raw materials. The dispersing performance of this dispersant on Tahe asphaltene before and after aging was investigated. The differences in dispersing performance were analyzed from the perspective of the molecular structure of the asphaltenes. It was found that the dispersing efficiency of Tahe asphaltene before aging was superior to that after aging. The results of dispersing tests were analyzed in terms of the total base number and particle size distribution of the asphaltenes， aiming to explore the dispersing effect and mechanism of the salicylic acid polyisobutylene succinimide dispersant on asphaltenes.

Keywords： Polyisobutylene succinimide dispersant; Dispersing efficiency; Tahe asphaltene; Asphaltene Aging

近年来，沥青老化机理及抗老化策略研究已成为道路材料领域的核心议题。（剩余7785字）