石油化工高等学校学报

石油化工高等学校学报 ›› 2020, Vol. 33 ›› Issue (3): 8-13.DOI: 10.3969/j.issn.1006-396X.2020.03.002

• 石油化工 • 上一篇    下一篇

悬浮聚合制备交联聚苯乙烯石蜡微胶囊及性能研究

李凤艳1牟鹏林1赵天波2   

  1. 1. 北京石油化工学院 化学工程学院,北京 102617; 2. 北京理工大学 化学与化工学院,北京 100081
  • 收稿日期:2019-10-28 修回日期:2020-03-23 出版日期:2020-06-29 发布日期:2020-07-06
  • 通讯作者: 牟鹏林(1993⁃),男,硕士研究生,从事生物质化工与环境友好精细化学品方面的研究;E⁃mail:2017520001@bipt.edu.cn。
  • 作者简介:李凤艳(1960?),女,博士,教授,从事应用化学与精细化学品方面的研究;E?mail:lifengyantd@126.com。
  • 基金资助:
    国家自然科学基金项目(11472048)。

Preparation of Crosslinked Polystyrene Paraffin Microcapsules by Suspension Polymerization and Properties Research

Li Fengyan1Mou Penglin1Zhao Tianbo2   

  1. 1. School of Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China; 2. School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China
  • Received:2019-10-28 Revised:2020-03-23 Published:2020-06-29 Online:2020-07-06

摘要: 以聚苯乙烯为壁材,58#石蜡为芯材,加入交联剂采用悬浮聚合法制备了交联型微胶囊。考察了聚合温度、引发剂质量分数、交联剂种类及芯壁比对微胶囊的影响。采用FT⁃IR、SEM、DSC、TG表征了微胶囊的结构、形貌、储热性能及热稳定性能。结果表明,聚合温度80 ℃,引发剂AIBN质量分数2%时制备的微胶囊球形貌好;采用交联剂DVB制备的微胶囊碎屑少,无团聚现象,热稳定性好;以芯壁比3∶1制备的微胶囊相变焓为152.2 J/g,芯材质量分数为82.2%,储热性能最好。

关键词: 聚苯乙烯,  石蜡,  悬浮聚合,  交联,  热性能

Abstract: Cross⁃linked microcapsules were prepared by suspension polymerization with polystyrene as the wall material and 58# paraffin as the core material. The effects of polymerization temperature, initiator dosage, crosslinker type and core⁃wall ratio on microcapsules were investigated. The structure, morphology, heat storage performance and thermal stability of microcapsules were characterized by FT⁃IR, SEM, DSC and TG. The experimental results show that the microcapsules prepared by the polymerization temperature of 80 ℃ and the initiator AIBN 2% have good spherical shape. The microcapsules prepared by the cross⁃linking agent DVB have less clastic debris, no agglomeration and good thermal stability. The microcapsules prepared by the core wall ratio of 3∶1 have a phase transition enthalpy of 152.2 J/g, a core material content of 82.2%, and the best heat storage performance.

Key words: Polystyrene, Paraffin, Suspension polymerization, Crosslinking, Thermal properties

引用本文

李凤艳, 牟鹏林, 赵天波. 悬浮聚合制备交联聚苯乙烯石蜡微胶囊及性能研究[J]. 石油化工高等学校学报, 2020, 33(3): 8-13.

Li Fengyan, Mou Penglin, Zhao Tianbo. Preparation of Crosslinked Polystyrene Paraffin Microcapsules by Suspension Polymerization and Properties Research[J]. Journal of Petrochemical Universities, 2020, 33(3): 8-13.

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