| 氟化相变微胶囊的制备与表征 |
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| 引用本文： | 赵宽,张凯,王继芬,徐利军,谢华清. 氟化相变微胶囊的制备与表征[J]. 上海第二工业大学学报, 2021, 38(4): 274-279 |
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| 作者姓名： | 赵宽 张凯 王继芬 徐利军 谢华清 |
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| 作者单位： | 上海第二工业大学 资源与环境工程学院,上海201209;上海先进热功能材料工程技术研究中心,上海201209;上海第二工业大学 资源与环境工程学院,上海201209;上海先进热功能材料工程技术研究中心,上海201209 |
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| 基金项目： | 国家自然科学基金 (51776116), 国家自然科学基金重大项目课题 (51590902) 资助 |
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| 摘 要： | 采用悬浮聚合法合成了以聚苯乙烯 (PS)、聚 4-氟苯乙烯 (P4FS) 和聚 2,3,4,5,6-五氟苯乙烯 (PPFS) 为壳材, 正十八烷 (OD) 为芯材的新型相变微胶囊材料 (PS@OD、P4FS@OD 和 PPFS@OD)。对微胶囊的疏油疏水性能和热物性进行了表征。结果表明, P4FS@OD 和 PPFS@OD 微胶囊的油接触角和水接触角均高于 PS@OD 微胶囊且分别为82.1?/87.3? 和 138.5?/146.7?, 其平均相变焓相比 PS@OD 微胶囊分别提升了 48.6% 和 101.9%, 达到 (125.6±1.6) J/g和 (170.6±2.2) J/g。其中 PPFS@OD 微胶囊的平均粒径最小且为 (460±13) nm。综上, 引入含氟壳材使得相变微胶囊具有良好储热性能和疏油疏水性能, 在清洁材料、储能、恒温建筑等方面有广阔的应用前景。
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| 关 键 词： | 相变材料 疏油疏水性 热物性 正十八烷 |
Preparation and Characterization of Fluorinated Phase Change Microcapsules |
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| ZHAO Kuan,ZHANG Kai,WANG Ji-fen,XU Li-jun and XIE Hua-qing. Preparation and Characterization of Fluorinated Phase Change Microcapsules[J]. Journal of Shanghai Second Polytechnic University, 2021, 38(4): 274-279 |
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| Authors: | ZHAO Kuan ZHANG Kai WANG Ji-fen XU Li-jun XIE Hua-qing |
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| Affiliation: | 1. School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai 201209,China; 2. Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai 201209, China,1. School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai 201209,China; 2. Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai 201209, China,1. School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai 201209,China; 2. Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai 201209, China,1. School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai 201209,China; and 2. Shanghai Engineering Research Center of Advanced Thermal Functional Materials,Shanghai 201209, China |
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| Abstract: | A newfangled phase-change material, composed of poly(styrene) (PS), poly(4-fluoroethylene) (P4FS) and poly(2,3,4,5,6-pentafluorostyrene) (PPFS) shell surrounding an n-octadecane core, was successfully prepared by suspension polymerization. Thehydrophobicity and thermal property of microcapsules were analyzed. The results showed that the hydrophobicity angles of P4FS@ODand PPFS@OD microcapsules were 82.1?/87.3? and 138.5?/146.7?, respectively, higher than those of PS@OD microcapsules. Theaverage enthalpy of phase change increased by 48.6% and 101.9% compared with PS@OD microcapsules, reaching (125.6±1.6) J/gand (170.6±2.2) J/g, respectively. The minimum average particle size of PPFS@OD microcapsules is (460±13) nm. To summarize,introducing fluorine-containing shell material makes the phase change microcapsule have good heat storage performance and hydrooleophobicity, which has broad application prospects in cleaning materials, energy storage, constant temperature building and otheraspects. |
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| Keywords: | phase change material hydro-oleophobicity thermal physical property n-octadecane |
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