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

材料导报

2024, Vol. 38

Issue (3): 22090074-5 https://doi.org/10.11896/cldb.22090074

无机非金属及其复合材料

基于十水硫酸钠的个体防护材料的制备及性能

赵荣¹, 韩子夜¹, 吴飞翔¹, 刘太奇^1,*, 李谭秋²

1 北京石油化工学院环境材料研究中心,北京 102617
2 中国航天科研训练中心,北京 100094

Preparation and Performance of Personal Protective Materials Based on Sodium Sulfate Decahydrate

ZHAO Rong¹, HAN Ziye¹, WU Feixiang¹, LIU Taiqi^1,*, LI Tanqiu²

1 Research Center of Ecomaterial, Beijing Institute of Petrochemical Technology, Beijing 102617, China
2 China Astronaut Research and Training Centre, Beijing 100094, China

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摘要新冠病毒的爆发使得人们对医用防护服的性能提出了更高的要求:隔离病毒并确保密闭空间人体舒适。人们试图用基于十水硫酸钠的相变材料来调节个体防护服的温度,但是其配方中含有危险品硼酸,并存在相分离、过冷等现象,限制了其实际应用。采用纳米二氧化硅和硼砂两种不同类型的成核剂,成功制备出不含硼酸的过冷度低、热性能稳定、可用于调节人体温度的个体防护材料,并研究了用DSC测试该材料相变潜热的方法。实验结果表明,纳米二氧化硅有效降低了十水硫酸钠的过冷度,个体防护材料的潜热足以用于制造防护服。当纳米二氧化硅添加量为3%时,个体防护材料的潜热为179 J/g,相变温度为16 ℃,过冷度仅为0.7 ℃;DSC测试该防护材料热性能的最佳条件为:样品质量为30 mg,制样温度维持在0 ℃,氮气压力为0.1 MPa。使用该防护材料制备的个体防护背心测试结果表明:防护背心4 h内可保持在26 ℃范围中,6 h保持在29 ℃范围内。

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关键词: 十水硫酸钠个体防护相变材料成核剂二氧化硅

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

出版日期: 2024-02-10 发布日期: 2024-02-19

ZTFLH:

TB34

基金资助: 北京市创新平台建设-北京石油化工学院材料学创新平台建设(PXM019-014222-000052)

通讯作者: *刘太奇,北京石油化工学院教授、博士研究生导师,研究中心主任,北京化工大学博士研究生导师。主要从事纳米环境净化材料、航天材料及节能材料研究。发表论文80余篇,其中SCI、EI收录60余篇,主编《纳米技术应用丛书》之《纳米空气净化技术》(化工出版社)。liutaiqi@bipt.edu.cn

作者简介: 赵荣,2020年6月本科毕业于太原工业学院无机非金属材料工程专业,现为北京石油化工学院硕士研究生,在刘太奇教授的指导下进行研究。目前主要研究方向为节能材料。

引用本文:

赵荣, 韩子夜, 吴飞翔, 刘太奇, 李谭秋. 基于十水硫酸钠的个体防护材料的制备及性能[J]. 材料导报, 2024, 38(3): 22090074-5.
ZHAO Rong, HAN Ziye, WU Feixiang, LIU Taiqi, LI Tanqiu. Preparation and Performance of Personal Protective Materials Based on Sodium Sulfate Decahydrate. Materials Reports, 2024, 38(3): 22090074-5.

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https://www.mater-rep.com/CN/10.11896/cldb.22090074 或 https://www.mater-rep.com/CN/Y2024/V38/I3/22090074

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