基于十水硫酸钠的个体防护材料的制备及性能

doi:10.11896/cldb.22090074

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Abstract The outbreak of the new crown virus has put forward the higher requirements to the performance of medical protective clothing, which can isolate the virus and ensure human comfort in confined spaces. A mixture of sodium sulfate decahydrate has been tried to adjust the temperature of a person with the personal protective clothing. However, it cannot be put into application because of the dangerous boric acid and the phenomena such as phase separation and supercooling. In this work, the personal protective material with low subcooling degree and stable thermal performance was successfully prepared by adding two different types of new treating agents, the nano-silica and borax. And it can be used to adjust human temperature without boric acid. The method of testing the latent heat of personal protective material with DSC was also studied. Experimental results show that nano-silica can effectively reduce the supercooling degree of sodium sulfate decahydrate, and the latent heat of the personal protective material is enough for the manufacture of protection clothes. With the addition of silica as 3%, the latent heat of the personal protective material is 179 J·g^-1 and the phase change temperature of it is 16 ℃ while the super cooling degree is only 0.7 ℃. The optimal conditions of DSC to test the enthalpy of the material are as follows: sample mass of 30 mg, preparation temperature at 0 ℃, pressure of the nitrogen protective gas 0.1 MPa. The test results of the personal protective vest prepared by using this material show that the protective vest can be kept in the range of 26 ℃ for 4 h and 29 ℃ for 6 h.

Key words： sodium sulfate decahydrate personal protection phase change material nucleating agent silicon dioxide

Published: 10 February 2024 Online: 2024-02-19

CLC number:

TB34

Fund:Construction of Beijing Innovation Platform-Construction of Materials Science Innovation Platform of Beijing Institute of Petrochemical Technology (PXM019-014222-000052).

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	Articles by authors
	ZHAO Rong
	HAN Ziye
	WU Feixiang
	LIU Taiqi
	LI Tanqiu

Cite this article:

ZHAO Rong,HAN Ziye,WU Feixiang, et al. Preparation and Performance of Personal Protective Materials Based on Sodium Sulfate Decahydrate[J]. Materials Reports, 2024, 38(3): 22090074-5.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.22090074 OR http://www.mater-rep.com/EN/Y2024/V38/I3/22090074

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