Page 89 - 《精细化工》2022年第6期

第 39 卷第 6 期 精 细 化 工 Vol.39, No.6
2022 年 6 月 FINE CHEMICALS June 2022

功能材料
导热增强聚氨酯基柔性定形相变材料的制备及性能

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赵梦阳，张宇昂，唐炳涛
（大连理工大学 精细化工国家重点实验室，辽宁 大连 116024）

摘要：以聚乙二醇（PEG10000）和氨丙基封端的聚二甲基硅氧烷（APDMS）为软段，甲苯-2,4-二异氰酸酯为
硬段，碳纳米管（CNTs）为功能性材料，采用一锅法制备了导热增强的聚氨酯基柔性定形相变材料
（PU/APDMS/CNTs）。采用 FTIR、XRD、DSC 和 TGA 表征了材料的结构特征和热性能。结果表明，当 APDMS
的含量（以软段和硬段单体总质量计，下同）为 10%，CNTs 含量为 5%时，制备的 PU/APDMS-1/CNTs 的相变
焓值为 88.3 J/g，在 200 ℃内不发生热分解，具有良好的热稳定性和定形相变效果，能够实现光热转换和热能存
储，其光热转换和热能存储效率为 62.8%，与未加入 CNTs 的相变材料相比，导热性能明显增强，其升降温速率
提高了 1.76 倍。PU/APDMS-1/CNTs 能够贴附于散热片表面随之弯曲，反复弯折 100 次后，其相变性能、柔韧
性以及形态无明显变化。
关键词：相变材料；柔性；聚氨酯；导热；聚二甲基硅氧烷；热能存储；功能材料
中图分类号：TB34 文献标识码：A 文章编号：1003-5214 (2022) 06-1155-08

Preparation and properties of thermal conductivity enhanced polyurethane

based flexible and form-stable phase change materials

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ZHAO Mengyang, ZHANG Yuang, TANG Bingtao
(State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China)

Abstract: Polyurethane based flexible form-stable phase change materials (PU/APDMS/CNTs) with
enhanced thermal conductivity were prepared by one-pot method using polyethylene glycol (PEG10000)
and aminopropyl terminated polydimethylsiloxane (APDMS) as soft segments, toluene 2, 4-diisocyanate as
hard segments, and carbon nanotubes (CNTs) as functional materials. The structural characteristics and
thermal properties of materials were characterized by FTIR, XRD, DSC and TGA. When the content (based
on the total mass of soft and hard monomers, the same below) of APDMS was 10% and that of CNTs was
5%, the prepared PU/APDMS-1/CNTs had a phase change enthalpy value of 88.3 J/g and no thermal
decomposition at 200 ℃, exhibited good thermal stability and form-stable performance, and could realize
photothermal conversion and heat storage. The photothermal conversion and heat storage efficiency of
PU/APDMS-1/CNTs was 62.8%. Compared with that of the phase change material without CNTs, the
thermal conductivity was obviously enhanced, and the rate of rise and fall was increased by 1.76 times.
PU/APDMS-1/CNTs could be attached to the surface of the heat sink and then bent. After repeated bending
for 100 times, the phase transformation properties, flexibility and morphology of PU/APDMS-1/CNTs had
no obvious change.
Key words: phase change materials; flexibility; polyurethane; thermal conductivity; polydimethylsiloxane;
thermal energy storage; functional materials

随着社会经济和工业的发展，能源的消耗日益 能源利用率，开发新型储能材料开始引起人们的广
增加，人们对能源的需求也日益扩大。因此，提高 泛关注。相变储能材料是一种通过相态变化来储存

收稿日期：2021-11-06; 定用日期：2022-01-26; DOI: 10.13550/j.jxhg.20211130
基金项目：国家自然科学基金（22178050，22108026）
作者简介：赵梦阳（1996—），女，硕士生，E-mail：645481473@qq.com。联系人：唐炳涛（1975—），男，教授，E-mail：tangbt@dlut.edu.cn。