物理化学学报 >> 2014, Vol. 30 >> Issue (2): 338-344.doi: 10.3866/PKU.WHXB201312231

软物质 上一篇    下一篇

包含聚苯胺的相变材料纳胶囊的制备及其性能

南光花, 王建平, 王艳, 王赫, 李伟, 张兴祥   

  1. 天津工业大学功能纤维研究所, 改性与功能纤维天津市重点实验室, 天津300387
  • 收稿日期:2013-09-02 修回日期:2013-12-16 发布日期:2014-01-23
  • 通讯作者: 王建平 E-mail:jpwangcn@gmail.com
  • 基金资助:

    航空科学基金(201229Q2002)和天津市科技计划项目(09ZCKFGX02200)资助项目

Preparation and Properties of Nanoencapsulated Phase Change Materials Containing Polyaniline

NAN Guang-Hua, WANG Jian-Ping, WANG Yan, WANG He, LI Wei, ZHANG Xing-Xiang   

  1. Tianjin Municipal Key Laboratory of Fiber Modification and Functional Fibers, Institute of Functional Fibers, Tianjin Polytechnic University, Tianjin 300387, P. R. China
  • Received:2013-09-02 Revised:2013-12-16 Published:2014-01-23
  • Contact: WANG Jian-Ping E-mail:jpwangcn@gmail.com
  • Supported by:

    The project was supported by the Aeronautical Science Foundation of China (201229Q2002) and Planned Science and Technology Project of Tianjin, China (09ZCKFGX02200).

摘要:

采用自由基乳液聚合法和原位聚合法制备了包含聚苯胺均匀分散在正十八烷中的悬浮体系的交联聚甲基丙烯酸甲酯为囊壁的相变材料纳胶囊(NanoPCMs). 采用扫描电子显微镜(SEM)、差示扫描量热仪(DSC)、热重分析仪(TG)和广角X射线衍射仪(WAXD)等手段分别考察了成核剂聚苯胺的添加量对相变材料纳胶囊表面形态、结晶性能、热稳定性及结晶行为等的影响. 实验结果表明:包含有聚苯胺的相变材料纳胶囊,成核剂的存在对其形貌、粒径、包覆率和结晶行为影响较小,耐热性略有所降低,添加1.5 g 苯胺时生成的成核剂聚苯胺可以有效改善其过冷结晶行为.

关键词: 相变材料纳胶囊, 正十八烷, 交联聚甲基丙烯酸甲酯, 聚苯胺, 过冷

Abstract:

Nanocapsules containing polyaniline homodispersed in n-octadecane (n-Oct) were synthesized by free radical emulsion polymerization and in situ polymerization using poly(methyl methacrylate-co- allyl methacrylate) (P(MMA-co-AMA)) as a shell, in which polyaniline was used as the nucleating agent. Furthermore, the surface morphologies, crystallization properties, thermal stabilities, and crystallization process of nanoencapsulated phase change materials (NanoPCMs) were investigated using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TG), and wide-angle X-ray diffraction (WAXD), respectively. The results showed that the addition of aniline as a monomer and polyaniline generated by in situ polymerization had little effect on the morphologies, particle sizes, encapsulation efficiencies, and crystallization process, but the heat resistance properties slightly decreased. Addition of 1.5 g of aniline effectively improved the supercooling crystallization behavior of the nanocapsule.

Key words: Nanoencapsulated phase change material, n-Octadecane, P(MMA-co-AMA), Polyaniline, Supercooling

MSC2000: 

  • O648