Preparation and performance of paraffin/alkali modified diatomite/expanded graphite composite phase change thermal storage material

被引:0
作者
Chen, Limei [1 ]
Zhao, Mengfei [1 ]
Chen, Lin [1 ]
Li, Ding [1 ]
Li, Wei [1 ]
Han, Weiye [1 ]
Wang, Hongbin [2 ]
机构
[1] Jilin Agr Univ, Coll Engn & Technol, Changchun 130118, Peoples R China
[2] Jilin Agr Univ, Coll Resources & Environm, Changchun 130118, Peoples R China
关键词
composite phase change material; paraffin; alkaline modified diatomite; expanded graphite; STEARIC ACID/EXPANDED GRAPHITE; PALMITIC ACID; SHELL;
D O I
10.11862/CJIC.20230312
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Through alkali treatment, the pore structure of diatomite (DIA) was optimized, the porosity was increased, and the paraffin loading was increased. A novel paraffin/alkali-modified DIA/expanded graphite (EG-alDIAP) composite with stable properties was prepared by direct impregnation method. The relationship between structure and properties of the material was studied. The results showed that the paraffin loading of the composite phase change material increased from 47.4% to 61.1%, thereby improving the heat storage performance of the composite material. The addition of expanded graphite (EG) to the modified diatomite improved the heat transfer capacity of the composite material. The addition of mass fraction of 10% EG increased the thermal conductivity by 113% (from 0.276 to 0.589 W center dot m-1 center dot K-1). With the increase of EG content, the latent heat of the composite phase change material increased slightly, but the chemical compatibility and stability did not change significantly. The paraffin/alkalimodified DIA composite containing 10% expanded graphite had reliable energy storage, good temperature regulation performance and heat storage and release capacity.
引用
收藏
页码:533 / 543
页数:200
相关论文
共 56 条
[1]   Fatty acid/poly(methyl methacrylate) (PMMA) blends as form-stable phase change materials for latent heat thermal energy storage [J].
Alkan, Cemil ;
Sari, Ahmet .
SOLAR ENERGY, 2008, 82 (02) :118-124
[2]   One-pot synthesis of light-driven polymeric composite phase change materials based on N-doped porous carbon for enhanced latent heat storage capacity and thermal conductivity [J].
Atinafu, Dimberu G. ;
Dong, Wenjun ;
Huang, Xiubing ;
Gao, Hongyi ;
Wang, Jingjing ;
Yang, Mu ;
Wang, Ge .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2018, 179 :392-400
[3]   Preparation and characteristics of microencapsulated palmitic acid with TiO2 shell as shape-stabilized thermal energy storage materials [J].
Cao, Lei ;
Tang, Fang ;
Fang, Guiyin .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2014, 123 :183-188
[4]   Synthesis and performances of novel solid-solid phase change materials with hexahydroxy compounds for thermal energy storage [J].
Chen, Changzhong ;
Liu, Wenmin ;
Wang, Hongwei ;
Peng, Kelin .
APPLIED ENERGY, 2015, 152 :198-206
[5]   Preparation and analysis of lightweight wall material with expanded graphite (EG)/paraffin composites for solar energy storage [J].
Cheng, Fei ;
Wen, Ruilong ;
Huang, Zhaohui ;
Fang, Minghao ;
Liu, Yan'gai ;
Wu, Xiaowen ;
Min, Xin .
APPLIED THERMAL ENGINEERING, 2017, 120 :107-114
[6]   Thermal energy storage for low and medium temperature applications using phase change materials - A review [J].
da Cunha, Jose Pereira ;
Eames, Philip .
APPLIED ENERGY, 2016, 177 :227-238
[7]   Modified wollastonite sequestrating CO2 and exploratory application of the carbonation products [J].
Ding, Wenjin ;
Yang, Huaming ;
Ouyang, Jing ;
Long, Hongming .
RSC ADVANCES, 2016, 6 (81) :78090-78099
[8]   Preparation and properties of palmitic acid/SiO2 composites with flame retardant as thermal energy storage materials [J].
Fang, Guiyin ;
Li, Hui ;
Chen, Zhi ;
Liu, Xu .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2011, 95 (07) :1875-1881
[9]   The shape-stabilized phase change materials composed of polyethylene glycol and various mesoporous matrices (AC, SBA-15 and MCM-41) [J].
Feng, Lili ;
Zhao, Wei ;
Zheng, Jie ;
Frisco, Sarah ;
Song, Ping ;
Li, Xingguo .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2011, 95 (12) :3550-3556
[10]   Ni2P Nanosheets on Graphene as Sulfur.Based Composite Cathode Material for Lithium-Sulfur Batteries [J].
Gao Rui ;
Wang Zhen-Yu ;
Wang Lu ;
Chen Peng ;
Liu Sheng ;
Ma Zhi-Peng ;
Shao Guang-Jie .
CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2022, 38 (04) :685-694