文献类型：期刊文献

英文题名：Agglomerating Agent Emulsions Synergistic-Stabilized by Surfactants and Sio2nanoparticles: Stability, Mechanism and Applications for Pbl Agglomeration

作者：Zhao, Li[1]; Lu, Shulai[2,3]; Chen, Ming[3,4]; Wang, Yuchao[3,4]; Zhao, Shicheng[1]

机构：[1] Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China; [2] Jilin Petrochemical Company, PetroChina, Jilin, 132021, China; [3] PetroChina ABS Resin Technology R&D Center, Jilin, 132021, China; [4] Research Institute of Jilin Petrochemical Company, PetroChina, Jilin, 132021, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240245882)

语种：英文

外文关键词：Agglomeration - Emulsification - Hydrogen bonds - Ostwald ripening - Silica nanoparticles - Silicon - SiO2 nanoparticles - Sodium dodecyl sulfate - Stability - Sulfur compounds

摘要：The stability of agglomerating agent is an important parameter to evaluate its value, which is of great significance for its subsequent transportation, storage and practical application. In this study, a high stability agglomerating agent synergistic-stabilized by sodium dodecyl sulfate (SDS) and SiO2 was synthesized. The stabilization mechanism of the agglomerating agent and its agglomeration effect on PBL were studied. Firstly, the particle size, interfacial tension and viscosity of the agglomerating agent emulsion stabilized by SDS/SiO2 has been investigated and compared with those of conventional emulsion stabilized by SDS. The results show that when the SDS concentration is lower than 0.125%, the presence of SiO2 can significantly increase the anti-coagulation ability of agglomerating agent particles in the polymerization process. Furthermore, noting that agglomerating agent emulsions stabilized by SDS/SiO2 exhibited high stability even pH, centrifugation, storage, and temperatures changed in wide range. In addition, the stability of the agglomerating agents synergistic-stabilized by surfactants and SiO2 nanoparticles is better than using them alone. Then, the stability mechanism of SiO2in the agglomerating agent was investigated. The results revealed that the SiO2 particles are tightly adsorbed on the surface of the agglomerating agent particles through hydrogen bonding and play a physical isolation role. Finally, the 100 nm PBL was enlarged to 305 nm by a synthetic agglomerating agent. Surprisingly, the SiO2 particles show excellent physical isolation role, not only in agglomerating agent, but also in agglomerated PBL. Our findings provide novel insights into the synthesis of high stability agglomerating agent and improve the practical application significance of subsequent PBL agglomerations and ABS properties. ? 2024, The Authors. All rights reserved.