Properties investigation on modified FGD gypsum based phase change insulating composite material
LIU Yunxiao
HE Rui
DENG Yunge
LIU Shuai
LIU Yiyang
ZHANG Hao
Abstract：Mixing the liquid and solid paraffin at the volume ratio of 8:2,using finely ground expanded perlite powder as ab-sorbing material,and Portland Cement & emulsion powder as packaging materials to prepare the phase change energy stored mate-rial(PCM)microcapsules. Different dosage of PCM microcapsules was added into the modified FGD gypsum insulating mortar,and the physical and mechanical properties of the mortar were investigated. The results show that the addition of PCM microcapsules has no adverse effect on workability of the mortar. The apparent density is slightly increased and thermal conductivity is lightly decreased,and the compression strength is raised remarkably as the dosage of the PCM the microcapsules increased. The primary reason of the change in compression strength and thermal conductivity maybe is the refinement of internal structure and the reduc-tion of macrospores.
Keywords：PCMmicrocapsuleFGD gypsummodify
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 5-7,15 )