重庆科技大学学报（自然科学版）2025，Vol.27Issue(2)：51-58,8.DOI:10.19406/j.issn.2097-4531.2025.02.007
基于相变微胶囊保温储能砂浆的制备及性能试验
Preparation and Performance Experiments of Thermal Insulation and Energy Storage Mortar Based on Phase Change Microcapsules
摘要
Abstract
The performance of phase change microcapsules and their cement-based materials was characterized by testing methods such as FT-IR,TG,DSC and SEM,and relevant analyses were carried out on the mechanical properties and thermal conductivity of different thermal insulation cement mortars.The results show that the phase change microcapsules have good thermal stability and are conducive to the formation of Ca(OH)2 crystal of the hy-dration products.With the increase of the dosage of phase change microcapsules,the pore volume and pore size in-side the cement-based material gradually increase,and the specific surface area gradually decreases.When the dosage of phase change microcapsules exceeds 9％(mass ratio),agglomeration will occur inside the cement-based material,and most of them are in a shrunken state,and a small number of phase change microcapsule shells are broken.With the increase of the dosage of phase change microcapsules,the compressive strength and flexural strength of the mortar show a gradually decreasing trend.When vitrified microspheres and phase change microcap-sules are simultaneously incorporated into the mortar,a composite filling effect can be produced,forming a multi-layer thermal resistance structure,thus reducing the thermal conductivity of the mortar.Based on the comprehen-sive analysis of various indexes,when the dosage of phase change microcapsules is 9％,the performance of the thermal insulation and energy storage mortar is the best.关键词
相变微胶囊/保温储能砂浆/微观结构/孔结构/导热系数/力学性能Key words
phase change microcapsules/thermal insulation and energy storage mortar/microstructure/pore struc-ture/thermal conductivity/mechanical properties引用本文复制引用
黄伟,张阳阳,徐桂丽,葛进进..基于相变微胶囊保温储能砂浆的制备及性能试验[J].重庆科技大学学报（自然科学版）,2025,27(2):51-58,8.基金项目
安徽省高校学科拔尖人才学术资助项目"多尺度纤维保温再生混凝土材料制备及性能试验"(GXBJ2022111) （GXBJ2022111）
安徽省教育厅科学研究重点资助项目"冲击荷载作用下预拌补偿收缩混凝土能耗特征和破坏机理研究"(2022AH052930) （2022AH052930）
