Preparation and characterization of microcapsules energy storage materials with carbon nanotube modified

doi:10.3969/j.issn.2095-4239.2016.02.014

Abstract

Abstract: In this paper, we report a study on the preparation and characterization of microcapsules containing butyl acrylate (energy storage material) and carbon nanotubes, with urea formaldehyde resin as shell material. An emulsion-solvent evaporation method was used for the production of the capsules. Scanning electron microscope, Fourier infrared spectrometer, differential scanning calorimetry and the hotdisk based thermal conductivity meter were used to characterize the capsules. Effects of the microcapsulation and the addition of carbon nanotubes were investigated on the thermal storage performance. The results showed that the carbon nanotubes were uniformly dispersed in butyl stearate within the core of the capsules, and the latent heat of phase change material and heat c were improved. The microcapsules were spherical, and the stearic acid butyl acrylate were encapsulated completely, providing an improved thermal stability of the phase change materials. It was also found that properties of the capsules were affected by how the carbon nanotubes were dispersed, the size and quality of the carbon nanotubes used, and even the methods and apparatus used for the measurements.

Key words: microcapsule, in-situ polymerization, carbon nanotubes, butyl stearate, phase changematerials

CLC Number:

TQ317

NI Zhuo, BAI Jiajian, ZENG Yinyin. Preparation and characterization of microcapsules energy storage materials with carbon nanotube modified[J]. Energy Storage Science and Technology, 2016, 5(2): 215-221.

References

[1] 倪卓，石开勇，黄志斌，等. 微胶囊相变材料的储能特性分析[J]. 高分子材料科学与工程，2011，27（6）：64-67.
NI Zhuo，SHI Kaiyong，HUANG Zhibin，et al. Thermal analysis of microcapsule phase change material[J]. Polymer Materials Science & Engineering，2011，27（6）：64-67.
[2] 倪卓，石开勇，黄志斌，等. UF/石蜡储能微胶囊的制备与表征[J]. 深圳大学学报（理工版），2010，27（1）：65-69.
NI Zhuo，SHI Kaiyong，HUANG Zhibin，et al. Synthsis and characterization of UF/paraffin PCM microcapsules[J]. Journal of Shenzhen University (Science & Engineering)，2010，27（1）：65-69.
[3] 尚燕，张雄. 相变储能材料的应用及研究现状[J]. 材料导报，2005，19（z2）：265-268.
SHANG Yan，ZHANG Xiong. The application and study progress of phase change storage materials[J]. Materials Review，2005，19（z2）：265-268.
[4] 马艳红. 相变温度可调的储能微胶囊的制备及其性能研究[D]. 北京：清华大学，2013
MA Yanhong. Preparation and characterization of microcapsules containing phase change temperature adjustable binary cores[D]. Beijing：Tsinghua University，2013.
[5] 任冬梅，李宗圣，郝鹏鹏. 碳纳米管化学[M]. 北京：化学工业出版社，2012：10-15.
REN Dongmei，LI Zongsheng，HAO Pengpeng. Chemistry of carbon nanotubes[M]. Beijing：Chemical Industry Press，2012：10-15.
[6] 陈卫祥，陈文录，徐铸德，等. 碳纳米管的特性及其高性能的复合材料[J]. 复合材料学报，2001，18（4）：1-5.
CHEN Weixiang，CHEN Wenlu，XU Zhude，et al. Characteristics of carbon nanotubes and high-quality composites[J]. Acta Materiae Compositae Sinica，2001，18（4）：1-5.
[7] 王晓，丁晴，姚晓莉，等. 石蜡基碳纳米管复合相变材料的热物性研究[J]. 热科学与技术，2013，12（2）：124-130.
WANG Xiao，DING Qing，YAO Xiaoli，et al. Thermophysical properties of paraffin-based composite phase change materials filled with carbon nanotubes[J]. Journal of Thermal Science and Technology，2013，12（2）：124-130.
[8] 倪卓，邝子聪，廖俊权，等. 一种有机储能混合材料微胶囊的制备方法及其表征[J]. 中国储能，2015，10：57-62.
NI Zhuo，KUANG Zicong，LIAO Junquan，et al. Preparation and characterization of a mixed organic energy storage microcapsule material[J]. China’s Energy Storage，2015，10：57-62.
[9] 倪卓，戎俊霓，曾茵茵，等. 碳纳米管对相变储能材料的影响[J/OL]. 中国科技论文在线，http://www.paper.edu.cn.
NI Zhuo，RONG Junni，ZENG Yinyin，et al. The influence of carbon nanotubes on phase change energy storage material[J/OL]. Sciencepaper Online，http://www.paper.edu.cn.
[10] 马芳梅. 相变物质储能建筑材料性质研究的进展[J]. 新型建筑材料，1997（8）：40-42.
MA Fangmei. Advances in material properties of the energy storage phase change materials[J]. New Building Materials，1997（8）：40-42.
[11] BERBER S，KWON Y K，TOMANCK D. Unusually high thermal conductivity of nanotubes[J]. Phys. Rev. B，2000，84：4613-4616．
[12] VENKATA K，UPADHYAYTTLA K，MEYER D E，et al. Life cycle assessment as a tool to enhance the environmental performance of carbon nanotube products：A review[J]. Journal of Cleaner Production，2012，doi: 10.1016/j.jclepro.2011.12.018.
[13] 张可达，徐冬梅，王平. 微胶囊化方法[J]. 功能高分子学报，2001，14（4）：474-480.
ZHANG Keda，XU Dongmei，WANG Ping. Microencapsulation method[J]. Journal of Functional Polymers，2001，14（4）：474-480.
[14] 尚红波. 微胶囊相变材料的制备[D]. 南京：南京工业大学，2006.
SHANG Hongbo. Preparation of microencapsulated phase change materials[J]. Nanjing：Nanjing Tech University，2006.
[15] 石开勇. 有机微胶囊在建筑材料中的应用研究[D]. 深圳：深圳大学，2011.
SHI Kaiyong. Study on application of microcapsule in the building materials[D]. Shenzhen：Shenzhen University，2011.
[16] THIES C. Physicochemical aspects of microencapsulation[J]. Polymer-Plastics Technology and Engineering，1975，5（1）：1-22.
[17] 崔波，曹长青，张青瑞，等. 尿素和甲醛合成脲醛树脂粘合剂的动力学研究[J]. 中国胶粘剂，1997，4（6）：4-7.
CUI Bo，CAO Changqing，ZHANG Qingrui，et al. Study on the kinetics of urea-formaldehyde resin synthesis[J]. China Adhesives，1997，4（6）：4-7.