Study on the thermal conductivity of the n-decanoic acid/expanded perlite composite phase change cement board
YU Ge
Abstract：The n-decanoic acid/expanded perlite composite phase change cement board was mixed with n-decanoic acid/expanded perlite phase change material by vacuum adsorption method with expanded perlite(EP)as the porous matrix material and n-decanoic acid(CA)as phase change material. The effect of temperature and content of phase change material on thermal con-ductivity was researched. The results show that the higher the phase change material content is,the lower the thermal conductivity of the cement board is under the same temperature condition. Compared with the thermal conductivity of ordinary cement board, the thermal conductivity of 8%,13% and 18% composite phase change cement slabs decreased by 40.60%,49.59%,53.43%(21℃) and 39.16%,47.89%,51.61%(51℃).
Keywords：composite phase change materialcement boardthermal conductivityheat flux density
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( 8-11 )