材料科学
潜热
相变材料
壳聚糖
热能储存
石膏
相变
泄漏(经济)
复合材料
复合数
芯(光纤)
化学工程
热力学
工程物理
工程类
经济
宏观经济学
物理
作者
Biao Wen,Linghao Tian,Dongyun Wei,Yanli Chen,Yaqi Ma,Yunfeng Zhao,Kai Zhang,Zhaoqiang Li
标识
DOI:10.1016/j.jcis.2024.06.006
摘要
Phase change materials (PCMs) can store and release latent heat under the designed phased change temperature and have received substantial interest for energy conservation and thermal control purposes. The use of PCMs in the construction of constant temperature buildings can improve the comfortable environment and save more energy. However, the leakage of PCMs during phase change process limits the application of PCMs. In this paper, a series of PCMs microcapsules with controllable core numbers is synthesized with paraffin (37 ℃) as the core and cross-linked chitosan as the wall. The single-core phase-change microcapsules (S-PCM) and multicore phase-change microcapsules (M−PCM) were prepared by adjusting the preparation condition. The latent heat of S-PCM and M−PCM are 61.4 mJ mg−1 and 50.1 mJ mg−1, respectively. The S-PCM and M−PCM display good stability without paraffin leakage. In addition, the composite blocks of gypsum and S-PCM (GSCM) and M−PCM (GMCM) were prepared and the thermoregulatory effection was investigated, where the surface temperature of GSCM was 5–10 ℃ lower than that of pure gypsum block. PCMs may also have broad application space in electronics, cold chain, and other industries.
科研通智能强力驱动
Strongly Powered by AbleSci AI