Paraffin/chitosan composite phase change materials fabricated by piercing-solidifying method for thermal energy storage

doi:10.1063/1.5140582

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Paraffin/chitosan composite phase change materials fabricated by piercing-solidifying method for thermal energy storage
	Qi, Honghua 2; Zhang, Ting 1; Zhang, Deyi 1; Wang, Kunjie 1; Wang, Yi 1
刊名	AIP ADVANCES
	2020-03
卷号	10 期号:3
关键词	Compressive strength Critical micelle concentration Emulsification Fabrication Heat storage Melting Micelles Paraffins Piercing Storage (materials) Structural optimization Temperature Thermal energy Composite phase change materials Encapsulated phase change materials Microencapsulated paraffin Phase change latent heat Storage performance Structure and thermal properties Thermal durability Weight loss ratios
DOI	10.1063/1.5140582
英文摘要	To study the effects of emulsifier content on the structure and thermal properties of encapsulated phase change materials (PCMs), four kinds of paraffin/chitosan (CS) macroencapsulated PCMs with different emulsifier contents were fabricated via the piercing-solidifying method. The effects of emulsifier content on macro-profile, micromorphology, thermal energy storage properties, and thermal durability of the as-prepared composite, as well as the structure of the optimal capsules, were investigated. The results show that the non-spherical degree, average diameter, and compressive strength decreased first and then increased with increase in emulsifier content, resulting in thermal energy storage capacity's increase at first and then its decrease. The optimal macro-capsules, fabricated at the critical micelle concentration of the emulsifier, present a regular spherical surface and microencapsulated paraffin wax inside. The paraffin content is as high as 85%, with a phase change latent heat of 112.6 J g(-1) for melting and 118.7 J g(-1) for solidification. The melting enthalpy and weight loss ratio of the optimal paraffin/chitosan composite after 600 heating/cooling cycles only changed to 0.71% and 1.17%, respectively. These results not only suggest that the piercing-solidifying method can be employed to fabricate macro-capsules with high heat storage performance and excellent thermal stability but also reveal that paraffin/CS can be used in thermal management at low temperature.
资助项目	National Natural Science Foundation of China[51562023]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000521324900003
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/76629]
专题	石油化工学院
通讯作者	Wang, Yi
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China 2.Zaozhuang Univ, Coll Tourism & Environm Resources, Zaozhuang 277160, Peoples R China
推荐引用方式 GB/T 7714	Qi, Honghua,Zhang, Ting,Zhang, Deyi,et al. Paraffin/chitosan composite phase change materials fabricated by piercing-solidifying method for thermal energy storage[J]. AIP ADVANCES,2020,10(3).
APA	Qi, Honghua,Zhang, Ting,Zhang, Deyi,Wang, Kunjie,&Wang, Yi.(2020).Paraffin/chitosan composite phase change materials fabricated by piercing-solidifying method for thermal energy storage.AIP ADVANCES,10(3).
MLA	Qi, Honghua,et al."Paraffin/chitosan composite phase change materials fabricated by piercing-solidifying method for thermal energy storage".AIP ADVANCES 10.3(2020).