硅酸盐矿物储热特征及其复合相变材料

Thermal Storage Characteristics and Composite Phase Change Materials of Silicate Minerals

利用硅酸盐矿物储热特征装载相变功能体,制备定形复合相变材料是获得优良储热性能、低制备成本复合储热材料的途径之一。从导热性能与储存空间两个方面概述了硅酸盐矿物的储热特征;对凹凸棒石、硅藻土、埃洛石、高岭石、蒙脱石、珍珠岩、蛭石、蛋白石、硅灰石等硅酸盐矿物基复合相变材料进行了综述;介绍了其在建筑节能以及其他领域如热红外隐身技术中的应用;最后指出,制备储热容量高、不易泄露的硅酸盐矿物基复合相变材料并扩大其应用范围是今后的研究重点。

One way of obtaining composite phase change materials(PCMs) with excellent thermal energy storage performance and low preparation cost is to utilize the thermal storage characteristics of silicate minerals. The thermal storage characteristics of silicate minerals were summarized based on their thermal conductivity and storage space. Recent development on silicate mineral-based composite PCMs with attapulgite, diatomite, halloysite, kaolinite, montmorillonite, perlite, vermiculite, opal, and wollastonite were represented. The application in building energy conservation and other filed like thermal infrared camouflages was introduced. It is indicated that preparing silicate-mineral based composite PCMs with high thermal storage capacity and non-leakage and enlarging its application range could be a challenge for the future development.