正癸酸-月桂酸-硬脂酸三元低共熔体系/膨胀石墨复合相变材料的制备与表征<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.04.021

Abstract
Figure/Table
References
Related Citation (4)

Download:

Full Text ( PDF ) (1790KB)
Export: BibTeX | EndNote (RIS)

Abstract A ternary composite phase change material system (DA-LA-SA) was prepared by blending decanoic acid (DA), lauric acid (LA) and stearic acid (SA). Then a series of fatty acid eutectic mixture/expanded graphite composite phase change materials (DA-LA-SA/EG-PCMs) were prepared with DA-LA-SA as phase change component and expanded graphite (EG) as carrier component, by melt blending method. The composition, crystal structure, microstructure, phase transition temperature and enthalpy of DA-LA-SA/EG-PCMs were characterized by FT-IR, XRD, SEM, TGA and DSC. The results showed that when the mass ratio of DA/LA/SA was 1∶8∶1, DA-LA-SA had low phase transition temperature and high phase change enthalpy. EG was composed of numberous pores, and the DA-LA-SA/EG-PCMs with physical combination of EG and DA-LA-SA had good stability through the microporous bound and surface adsorption of EG. When the content of EG was 10wt%, the phase change temperature, enthalpy and thermal conductivity were 38.6 ℃, 123 J/g, and 3.572 1 W·(m·K)^-1,respectively, accompanied with a uniform dispersion and small particle size, as well as excellent thermal performance and stability.

Key words： ternary fatty acids expanded graphite composite phase change materials thermal properties decanoic acid-lauric acid-stearic acid low eutectic temperature

Published: 02 May 2018

CLC number:

TK02

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.04.021 OR http://www.mater-rep.com/EN/Y2017/V31/I4/94

1 Chcralathan M,Vclraj R,Rcnganarayanan S.Heat transfer and para-metric studies of an encapsulated phase change material based cool thermal energy storage system[J]. J Zhejiang University Science A:Sci Eng,2006,7(11):1890.
2 Trigui A, Karkri M, Krupa I. Thermal conductivity and latent heat thermal energy storage properties of LDPE/wax as a shape stabilized composite phase change material[J]. Energy Convers Manage,2014,77:592.
3 Ince S, Seki Y, Ezan M A, et al. Thermal properties of myristic acid/graphite nanoplates composite phase change materials[J]. Renew Energy,2015,75:246.
4 Ho C J, Gao J Y. Preparation and thermo-physical properties of nanoparticlein-paraffin emulsion as phase change material[J]. Int J Heat Mass Transfer,2009,36(5):469.
5 Varol Y, Koca A, Oztip H F, et al. Forecasting of thermal energy storage performance of phase change material in a solar collector using soft computing techniques[J]. Expert Syst Appl,2010,37(4):2726.
6 Jia Chao, Tang Bingtao, Zhang Shufen, et al. Synthesis of stearic acid/SiO₂ hybrid phase change materials by ultrasound assisted[J]. Acta Mater Compos Sin,2012,29(1):85(in Chinese).
贾超, 唐炳涛, 张淑芬, 等. 超声辅助溶胶-凝胶法制备硬脂酸/SiO₂定形相变储能材料[J]. 复合材料学报,2012,29(1):85.
7 Huang Xue, Cui Yingde, Yin Guoqiang, et al. Preparation and performance of lauric acid-expanded graphite composite phase change materials[J].CIESC J,2015,66(S1):88(in Chinese).
黄雪, 崔英德, 尹国强, 等. 月桂酸-膨胀石墨复合相变材料的制备及性能[J]. 化工学报,2015,66(S1):88.
8 Zui Jiangguo, Li Weizhong, Wen Lindong, et al. Thermal properties of laurie/itetradecanol binary system for energy storage[J]. Appl Therm Eng,2011,31(29):1353.
9 Leng Guanghui, Lan Zhipeng, Ge Zhiwei. Recent progress in thermal energy storage materials[J]. Energy Storage Sci Technol,2015,4(2):126(in Chinese).
冷光辉, 蓝志鹏, 葛志伟. 储热材料研究进展[J]. 储能科学与技术,2015,4(2):126.
10 Zhong Limin, Yang Mu, Luan Luan, et al. Preparation and properties of paraffin/SiO₂ composite phase change materials[J]. Chin J Eng,2015,37(7):938(in Chinese).
钟丽敏, 杨穆, 栾栾, 等. 石蜡/二氧化硅复合相变材料的制备及其性能[J]. 工程科学学报,2015,37(7):938.
11 Zhang Xiurong, Zhu Dongsheng, Gao Jinwei, et al. Study on thermal properties of graphite/paraffin composites as phase change heat storage material[J]. Chin J Mater Res,2010,24(3):335(in Chinese).
张秀荣, 朱冬生, 高进伟, 等. 石墨/石蜡复合相变蓄热材料的热性能研究[J]. 材料研究学报,2010,24(3):335.
12 Zhang Yinping, Su Yuehong, Ge Xinshi. Prediction of melting temperature and the fusion heat of (Quasi) eutectic PCM[J]. J China University of Science and Technology,1995,25(4):475(in Chinese).
张寅平, 苏跃红, 葛新石. (准)共晶系相变材料融点及融解热的理论预测[J]. 中国科技大学学报,1995,25(4):475.
13 Huang Xue. The preparation and thermal properties of fatty acids ternary eutectic mixture composite phase change material[D]. Guangzhou: Guangdong University of Technology,2015(in Chinese).
黄雪. 三元低共熔脂肪酸复合相变材料的制备及热性能研究[D]. 广州:广州工业大学,2015.
14 Zhang Zhengguo, Long Na, Fang Xiaoming. Study on performance of paraffin/expanded graphite composite phase-change material[J]. J Funct Mater,2009,40(8):1314(in Chinese).
张正国, 龙娜, 方晓明. 石蜡/膨胀石墨复合相变储热材料的性能研究[J]. 功能材料,2009,40(8):1314.
15 Sari A, Karaipekli A. Thermal conductivity and latent heat thermal energy storage characteristics of paraffin/expanded graphite compo-site as phase change material[J]. Appl Therm Eng,2007,27(8-9):1276.
16 Zhang Hong, Wu Xiaohua, Wang Qianqian, et al. Study on the preparation technology of composite phase change material by using orthogonal tests[J]. J Dalian Polytechnic University,2011,30(3):200(in Chinese).
张鸿, 武晓华, 王倩倩, 等. 正交试验法研究定形复合相变材料的制备工艺[J]. 大连工业大学学报,2011,30(3):200.
17 Ding Qing, Fang Xin, Fan Liwu, et al. Effect of hybrid nanofillers on thermal conductivity composite phase change materials[J]. J Zhejiang University:Eng Sci,2015,49(2):333(in Chinese).
丁晴, 方昕, 范利武, 等. 混合纳米填料对复合相变材料导热系数的影响[J]. 浙江大学学报:工学版,2015,49(2):333.