石油化工高等学校学报

石油化工高等学校学报 ›› 2019, Vol. 32 ›› Issue (3): 14-19.DOI: 10.3969/j.issn.1006-396X.2019.03.003

• 石油化工 • 上一篇    下一篇

聚甲聚甲基丙烯酸甲酯/石蜡微胶囊的制备与性能基丙烯酸甲酯/石蜡微胶囊的制备与性能

胡荣荣1李凤艳1张世杰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)
  • 出版日期:2019-06-06 发布日期:2019-06-18
  • 通讯作者: 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
  • 作者简介:胡荣荣(1990-),女,硕士研究生,从事相变微胶囊的制备与表征方面的研究;E-mail:5220160126@bipt.edu.cn
  • 基金资助:
    国家自然科学基金(11472048)

Fabrication and Characterization of Microencapsulated Paraffin with Methyl Methacrylate⁃Based Polymer Shell

Hu Rongrong1Li Fengyan1Zhang Shijie1Zhao 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)
  • Published:2019-06-06 Online:2019-06-18

摘要:  采用悬浮聚合法制备以甲基丙烯酸甲酯为壁材,58#石蜡为芯材的相变微胶囊。考察了乳化剂和引发剂的质量分数以及芯壁比对微胶囊性能的影响,采用傅立叶红外光谱仪、场发射扫描电镜、差示扫描量热仪、热重分析等手段对微胶囊的化学结构、表观形貌、储热性能以及热稳定性等进行了表征。结果表明,乳化剂PVP和引发剂AIBN质量分数为7.0%、3.9%时,微胶囊的形貌最佳;芯壁比为3∶1制备的微胶囊呈规则球形、表面光滑、具有较高的相变焓,相变潜热为126.97 J/g,芯材石蜡质量分数为85.4%,储热性能和热稳定性好。

关键词: 甲基丙烯酸甲酯, 石蜡, 相变微胶囊, 芯壁比, 储热性能

Abstract: The phase change microcapsules with methyl methacrylate as the shell material and 58# paraffin as the core material were prepared by suspension polymerization. The effects of some factors on the properties of the microcapsules were studied, such as the amounts of emulsifiers and initiators, the mass ratios of the core and shell materials. Chemical compositions, surface morphologies, thermal properties and stabilities of the microcapsules were characterized by Fourier transform infrared (FT⁃IR) spectroscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively. The results showed that when the mass fractions of emulsifier PVP and initiator AIBN were 7.0% and 3.9%, respectively, the microcapsules had the best morphology. When the mass ratio of the core and shell material was 3∶1, the microcapsule had a regular spherical shape with a smooth surface. At the same time, the microcapsule with the high enthalpy of phase change had a high heat storage property and stability. The quantity of heat involved in phase transition was 126.97 J/g and the content of paraffin wax as the core material was 85.4%.

Key words: Methyl methacrylate, Paraffin, Phase change microcapsules, Core/shell mass ratios, Heat storage property

引用本文

胡荣荣,李凤艳,张世杰,赵天波. 聚甲聚甲基丙烯酸甲酯/石蜡微胶囊的制备与性能基丙烯酸甲酯/石蜡微胶囊的制备与性能[J]. 石油化工高等学校学报, 2019, 32(3): 14-19.

Hu Rongrong,Li Fengyan,Zhang Shijie,Zhao Tianbo. Fabrication and Characterization of Microencapsulated Paraffin with Methyl Methacrylate⁃Based Polymer Shell[J]. Journal of Petrochemical Universities, 2019, 32(3): 14-19.

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