A novel composite phase change material with cold storage and insulation and its application

doi:10.19799/j.cnki.2095-4239.2022.0034

Abstract

Abstract:

A form-stabled phase change composite SEPS/OP10E C-PCMs with deformable, strong mechanical properties and casting and molding properties was prepared via the melting blending method using the thermoplastic elastomer SEPS and OP10E through the physical cross-linking mechanism. Herein, PEG 2000 was added to enhance the mechanical properties and the mechanism of physical cross-linking and mechanical property enhancement was proved. Simultaneously, in this work, thermal storage, thermal stability, and mechanical properties were investigated by various test and characterization methods, including differential scanning calorimetry (DSC), thermal analysis (TG), tension-stress test, etc., to explore its heat storage performance, thermal stability, and mechanical properties. The experimental results show that SEPS/OP10E-PEG 2000 exhibits a high latent heat value and no paraffin leakage even after 50 heating-cooling cycles, which proves its good thermal stability, and the maximum tensile rate of 652.3%, showing strong mechanical properties. Additionally, SEPS/OP10E-PEG 2000 was applied to a cold storage tank, which can be maintained at 7-9 ℃ for 2.6 h. This novel composite phase change material with special pouring performance and good thermal characteristics reduces the space proportion of thermal storage materials in cold chain transportation, thus enhancing the precision temperature control ability and cold storage performance, effectively saving the storage space of cold chain transportation simultaneously.

Key words: SEPS/OP10E C-PCM, cold storage and insulation, form-stabled composite phase change materials, cold chain transportation

CLC Number:

TB 332

Qi ZHANG, Yujing WANG, Yinlei LI, Chongyang LIU. A novel composite phase change material with cold storage and insulation and its application[J]. Energy Storage Science and Technology, 2022, 11(10): 3133-3141.

Figures/Tables 15

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材料	T_m/℃	△H_m/(J/g)	T_f/℃	△H_f/(J/g)
OP10E	10.0	175.2	8.2	173.3
SEPS/OP10E (80 %)	10.1	147.8	3.3	146.2
SOP-15%	10.1	137.6	3.3	135.4