相变材料聚氨酯泡沫的热特性研究

C. Amaral , R. Vicente , J. Eisenblätter , P.A.A.P. Marques
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引用次数: 8

摘要

利用聚氨酯泡沫(PU)的保温能力和相变材料(PCMs)的储热能力的共同优势,可以生产出PU复合泡沫,作为功能层纳入建筑构件中,设计成潜热储热系统(LHTES),提高建筑的热舒适性和能耗。本研究采用多元醇合成法制备了含有微囊化PCMs的PU复合泡沫材料。本研究的主要目的是改善聚氨酯泡沫的热特性,通过加入PCMs,利用其热能储存能力。研究了三种不同聚氨酯复合泡沫(含三聚氰胺、含三聚氰胺和可膨胀石墨的硬质泡沫)在添加不同比例的聚氰胺后的储热性能和储能性能。采用动态扫描量热仪和瞬态平面热源法对聚氨酯复合泡沫配方的储能性能进行了对比表征。阻燃剂的加入对含mpcm的聚氨酯泡沫的潜热储热能力有轻微影响,mpcm的加入提高了聚氨酯泡沫的最终导热系数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermal characterization of polyurethane foams with phase change material

Taking the joint advantages of the thermal insulation capacity of polyurethane foams (PU) and the thermal energy storage capacity of phase change materials (PCMs), it is possible to produce PU composite foams that can be incorporated as a functional layer into buildings components, designed as latent heat thermal energy storage systems (LHTES), that improve the thermal comfort and the energy consumption of buildings. In this work, PU composite foams containing microencapsulated PCMs (mPCMs) were produced by polyol synthesis. The major aim of the present study was to improve the thermal characteristics of PU foams, by incorporating PCMs, taking advantage of their thermal energy storage capacity. The thermal and energy storage properties were evaluated for three different PU composite foams (hard foam without and with melamine and expandable graphite) with the addition of different percentage of mPCMs. The comparative characterization of the energy storage properties of the PU composite foam formulations is measured using a dynamic scan calorimeter and the thermal conductivity using the transient plane heat source method. The addition of flame retardants to the PU foam slightly influenced the latent heat storage capacity of the PU foam with mPCMs and the addition of mPCMs increases the final thermal conductivity.

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