Preparation of Hexadecanol-Palmitic Acid-Lauric Acid/SiO2 Composite as Phase Change Material for Humidity Control

doi:10.11901/1005.3093.2015.278

Chinese Journal of Materials Research

2015, Vol. 29

Issue (11): 867-873 DOI: 10.11901/1005.3093.2015.278

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Preparation of Hexadecanol-Palmitic Acid-Lauric Acid/SiO₂ Composite as Phase Change Material for Humidity Control

Hao ZHANG(

),Xinjie HUANG,Xiuyu LIU

School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, China

Cite this article:

Hao ZHANG,Xinjie HUANG,Xiuyu LIU. Preparation of Hexadecanol-Palmitic Acid-Lauric Acid/SiO₂ Composite as Phase Change Material for Humidity Control. Chinese Journal of Materials Research, 2015, 29(11): 867-873.

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Abstract

A hexadecanol-palmitic acid-lauric acid/SiO₂ composite as phase change material for humidity control was prepared with SiO₂ as carrier and hexadecanol-palmitic acid-lauric acid as phase change material. The performance, molecular structure and morphology of the prepared composite were characterized by using methods of isothermal sorption, cooling curve, FT-IR, SEM, LPSA, TG, DSC and so on. The results show that SiO₂ was good coated with hexadecanol-palmitic acid-lauric acid; the prepared phase change material exhibits good performance both in temperature- and humidity-control.

Key words: composite hexadecanol-palmitic acid-lauric acid SiO₂ humidity controlling performance temperature controlling performance

Received: 07 May 2015

Fund: *Supported by National Natural Science Foundation of China No. 51206002.

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https://www.cjmr.org/EN/10.11901/1005.3093.2015.278 OR https://www.cjmr.org/EN/Y2015/V29/I11/867

Table 1 Relative humidity of saturated salt in water (25℃)

Fig.1 FT-IR measurement results of SiO₂ (a), hexadecanol-palmitic acid-lauric acid (b) and hexadecanol-palmitic acid-lauric acid/SiO₂ composite phase change and humidity controlling materials (c)

Fig.2 SEM measurement results of SiO₂ (a) and hexadecanol-palmitic acid-lauric acid/SiO₂ composite phase change and humidity controlling materials (b)

Fig.3 LPSA measurement results of SiO₂(a) and hexadecanol-palmitic acid-lauric acid/SiO₂ composite phase change and humidity controlling materials (b)

Fig.4 TG measurement results of SiO₂ (a), hexadecanol-palmitic acid-lauric acid (b) and hexadecanol-palmitic acid-lauric acid/SiO₂ composite phase change and humidity controlling materials (c)

Fig.5 DSC measurement results of hexadecanol-palmitic acid-lauric acid (a) and hexadecanol-palmitic acid-lauric acid/SiO₂ composite phase change and humidity controlling materials (b)

Fig.6 Humidity controlling performance of SiO₂ (a) and hexadecanol-palmitic acid-lauric acid/SiO₂ composite phase change and humidity controlling materials (b)

Fig.7 Temperature controlling performance of SiO₂ (a) and hexadecanol-palmitic acid-lauric acid/SiO₂ composite phase change and humidity controlling materials (b)

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