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Preparation and Characterization of Fatty Acid Stabilized Composite Phase Change Materials Based on Diatomite for Construction
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Zhao SHU1, Ke ZHONG1, Xin XIAO1, 2, Ningbo ZHANG3
Journal of the Chinese Ceramic Society | 2022, 50(6) : 1652 - 1660
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Journal of the Chinese Ceramic Society | 2022, 50(6): 1652-1660
• Research Articles •
Preparation and Characterization of Fatty Acid Stabilized Composite Phase Change Materials Based on Diatomite for Construction
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Zhao SHU1, Ke ZHONG1, Xin XIAO1, 2, Ningbo ZHANG3
Affiliations
  • 1.Institute of Air Environment and Building Energy Conservation, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
  • 2.Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
  • 3.Shanghai Installation Engineering Group Co., Ltd., Shanghai 200080, China

    • SHU Zhao (1998-), male, Master candidate. E-mail:

About Author:

SHU Zhao (1998-), male, Master candidate. E-mail:

Published: 2022-06-20 doi: 10.14062/j.issn.0454-5648.20210913
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Fatty acids as phase change materials (PCMs) are extensively used to alleviate the energy crisis of buildings. The PCM of lauric acid-myristic acid-stearic acid (LA-MA-SA) was synthesized. LA-MA-SA/EG/DE stabilized composite PCMs were synthesized via melting impregnation with an expanded graphite (EG) and a diatomaceous earth (DE). The microstructures and thermal physical properties of the stabilized composite PCMs were determined. The results show that LA-MA-SA is physically adsorbed with EG and DE and has a good adsorption effect. The steady-state tests of thermal conductivity indicate that EG can effectively improve the thermal conductivity of PCM, and the addition of 2%-10% EG can enhance the thermal conductivity by 29.7%-708.2%. The addition of DE can play an active role in shaping for compound and prevents the leakage of PCM. After 100 DSC cycles of the stabilized composite PCM, there is little difference from the phase change temperature and latent heat of the PCMs. According to the results of the heating and cooling tests, the gypsum board of LA-MA-SA/10% EG/10/% DE shows a good heat storage and release performance and a relative thermal comfort time for 0.82 h.

fatty acid  /  diatomite  /  stabilized phase change materials  /  thermal physical properties
舒钊, 钟珂, 肖鑫, 张宁波. 硅藻土基脂肪酸定型相变材料的制备与表征. 硅酸盐学报, 2022 , 50 (6) : 1652 -1660 . DOI: 10.14062/j.issn.0454-5648.20210913
Zhao SHU, Ke ZHONG, Xin XIAO, Ningbo ZHANG. Preparation and Characterization of Fatty Acid Stabilized Composite Phase Change Materials Based on Diatomite for Construction[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (6) : 1652 -1660 . DOI: 10.14062/j.issn.0454-5648.20210913
Appendix
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Year 2022 volume 50 Issue 6
12
1
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Article Info
doi: 10.14062/j.issn.0454-5648.20210913
  • Receive Date：2021-10-25
  • Online Date：2026-10-22
  • Published：2022-06-20
Article Data
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History
  • Received：2021-10-25
  • Revised：2021-11-17
Funding
Affiliations
    1.Institute of Air Environment and Building Energy Conservation, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
    2.Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
    3.Shanghai Installation Engineering Group Co., Ltd., Shanghai 200080, China

Corresponding:

XIAO Xin (1983-), male, Ph.D., Associate Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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