新型复合低温相变蓄冷材料的研制及热物性优化

贾蒲悦; 武卫东; 王益聪; 张兵

doi:10.11949/j.issn.0438-1157.20181505

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新型复合低温相变蓄冷材料的研制及热物性优化

材料化学工程与纳米技术 | 更新时间：2026-07-24

- 新型复合低温相变蓄冷材料的研制及热物性优化
- Preparation and thermophysical property optimization of a new composite phase change material for cold storage
- 化工学报 2019年70卷第7期页码：2758-2765
- 作者机构：
  
  上海理工大学制冷与低温工程研究所，上海 200093
- 作者简介：
  
  贾蒲悦（1995—），女，硕士研究生，904732232@qq.com
  武卫东（1973—），男，博士，教授，usstwwd@163.com
- 基金信息：
  
  国家自然科学基金面上项目(51676129)
- DOI：10.11949/j.issn.0438-1157.20181505
  中图分类号： TK 02
- 收稿：2018-12-24，
  
  修回：2019-04-28，
  
  网络首发：2026-07-24，
  
  纸质出版：2019-07-05
- 稿件说明：
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贾蒲悦, 武卫东, 王益聪, 张兵. 新型复合低温相变蓄冷材料的研制及热物性优化[J]. 化工学报, 2019, 70(7): 2758-2765

JIA Puyue, WU Weidong, WANG Yicong, ZHANG Bing. Preparation and thermophysical property optimization of a new composite phase change material for cold storage[J]. CIESC Journal, 2019, 70(7): 2758-2765
贾蒲悦, 武卫东, 王益聪, 张兵. 新型复合低温相变蓄冷材料的研制及热物性优化[J]. 化工学报, 2019, 70(7): 2758-2765 DOI： 10.11949/j.issn.0438-1157.20181505.

JIA Puyue, WU Weidong, WANG Yicong, ZHANG Bing. Preparation and thermophysical property optimization of a new composite phase change material for cold storage[J]. CIESC Journal, 2019, 70(7): 2758-2765 DOI： 10.11949/j.issn.0438-1157.20181505.

摘要

针对低温冷链物流应用场合，提出一种由三羟甲基丙烷（TMP）、氯化铵（NH

Cl）和水组成的新型有机-无机复合相变蓄冷材料。首先对该复合材料的不同配比进行DSC热分析实验，筛选出热力性能较优异的材料混合比（TMP∶NH

Cl∶H

O质量比为1.0∶2.0∶7.0）。其次，以上述配比的复合材料为基液，研究了添加不同的纳米粒子（三氧化二铝、二氧化钛、三氧化二铁）对其过冷度、热导率的影响，以及增稠剂（羧甲基纤维素（CMC）、聚丙烯酸钠（PAAS））对其相分离现象的影响，并进行了热循环实验。实验结果表明：添加0.40%(质量分数)的TiO

纳米粒子对降低该复合材料过冷度效果最佳；添加0.50%(质量分数)的TiO

纳米粒子对增大其热导率效果最佳；增稠剂CMC和PAAS可以消除该复合材料相分离现象并对其相变温度、相变潜热、过冷度等热物性影响较小。经优化所得最终复合相变蓄冷材料的配比为以1.0∶2.0∶7.0质量比混合的TMP-NH

Cl-H

O + 0.40%(质量分数)TiO

+ 1.0%(质量分数) PAAS，其相变温度为－19.9℃，相变潜热为246.8 kJ/kg，热导率为0.81 W/(m·K)，并具有较好的循环稳定性。

Abstract

A new organic-inorganic composite phase change material (PCM) was prepared

which is composed of trimethylolpropane (TMP)

ammonium chloride (NH

Cl) and H

for the application of cold chain logistic. The composite materials with different ratios were measured by using differential scanning calorimetry (DSC)

and a composite PCM with excellent thermal performance was selected

which has a mass ratio of 1.0∶2.0∶7.0 (TMP∶NH

Cl∶H

O). To further optimize its performance

the supercooling degree and thermal conductivity of the PCM were studied by adding nucleating agent ( nano-Al

nano-Fe

nano-TiO

)

and phase separation of the PCM was studied by adding thickener

carboxymethyl cellulose (CMC) or polyacrylic acid sodium (PAAS)

and the thermal cyclic experiment was also conducted. The results showed th

at adding 0.40%(mass) and 0.50%(mass) nano-TiO

had a better effect on reducing supercooling degree and enhancing thermal conductivity

respectively. CMC and PAAS could eliminate the phenomenon of phase separation with a little influence of thermophysical properties. The final ratio of the PCM was TMP-NH

Cl-H

O mixed at a mass ratio of 1.0∶2.0∶7.0 + 0.4%(mass) TiO

+ 1.0% (mass) PAAS

and the phase-change temperature

latent heat enthalpy and thermal conductivity of the prepared PCM were －19.9℃

246.8 kJ/kg and 0.81 W/(m·K)

respectively.

关键词

Keywords

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