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日用化学工业 ›› 2020, Vol. 50 ›› Issue (6): 359-365.doi: 10.3969/j.issn.1001-1803.2020.06.001

• 基础研究 •    下一篇

响应面法优化相变胶囊的包覆工艺

陈雯1,吴晓圆1,李雪婷1,3,鲁希华1,2,3(),张瑞云4   

  1. 1. 东华大学 化学化工与生物工程学院,上海 201620
    2. 东华大学 材料科学与工程学院 纤维材料改性国家重点实验室,上海 201620
    3. 安徽美科迪智能微胶囊科技有限公司,安徽 铜陵 244000
    4. 东华大学 纺织学院,上海 201620
  • 收稿日期:2019-10-19 修回日期:2020-05-31 出版日期:2020-06-22 发布日期:2020-06-22
  • 通讯作者: 鲁希华
  • 作者简介:陈 雯(1994-),女,四川内江人,硕士研究生,电话:18321105263,E-mail:m13889164854@163.com。
  • 基金资助:
    国家自然科学基金资助项目(51473032);国家重点研发计划资助项目(2017YFB0309100)

Optimization of encapsulation efficiency for nanoencapsulated octadecane by response surface method

CHEN Wen1,WU Xiao-yuan1,LI Xue-ting1,3,LU Xi-hua1,2,3(),ZHANG Rui-yun4   

  1. 1. College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
    2. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
    3. Anhui Microdelivery Smart Microcapsule Sci & Tech Co., Ltd., Tongling, Anhui 244000, China
    4. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2019-10-19 Revised:2020-05-31 Online:2020-06-22 Published:2020-06-22
  • Contact: Xi-hua LU

摘要:

通过界面自由基聚合法成功制备了包埋率高、毒性低的相变纳米胶囊,其中以正十八烷为芯材,以二丙二醇二丙烯酸酯(DPGDA)为单体自交联形成聚合物壳。用响应面方法优化芯壁比、超声时间和固化温度对包埋率的影响。扫描电子显微镜(SEM)图像显示所制备的纳米胶囊为球形。傅里叶变换红外光谱和差示扫描量热法(DSC)表明,十八烷可以很好地被包封在相变胶囊壳内,纳米胶囊的包埋率和载量分别为90.6%和30%。热重分析(TGA)表明相变纳米胶囊在120 ℃时依然具有良好的热稳定性。另外,用相变胶囊处理的棉织物在洗涤225 min后依然可以满足人类对保暖/凉爽的需求,这表明其在改善穿着者舒适性的调温纺织品中具有潜在应用。

关键词: 十八烷, 自交联, 相变纳米胶囊, 响应面分析, 调温纺织品

Abstract:

Phase-change nanocapsules with high encapsulation efficiency and low toxicity were successfully prepared via interfacial free-radical polymerization, in which n-octadecane was used as core material and dipropylene glycol diacrylate (DPGDA) monomer was self-crosslinked to form the polymer shell. Response surface method (RSM) was applied to optimize the effects of ratio of core/shell, curing temperature and homogenization time on the encapsulation efficiency. Scanning electron microscope (SEM) images revealed that the nanocapsules thus obtained possessed spherical morphology. Fourier transform infrared spectroscopy (FT-IR) and differential scanning calorimetry (DSC) showed that the n-octadecane could be well encapsulated inside the nanocapsules under the optimized condition, and the encapsulation efficiency and loading capacity of the nanocapules were 90.6% and 30%, respectively. The thermal gravimetric analysis (TGA) of nanocapsules indicated that the phase-change nanocapsules had good thermostability up to 120 ℃. Additionally, cotton fabrics treated with the phase-change nanocapsules displayed good washing durability after 225 min washing, indicative of the potential application in thermo-regulated textiles for clothing to improve the thermal comfort of the wearer.

Key words: octadecane, self-crosslink, phase-change nanocapsule, response surface methodology, thermo-regulated textile

中图分类号: 

  • TB383