高相變焓羧甲基化纖維素纖維-碳納米管-石蠟相變復(fù)合材料的制備與儲(chǔ)熱性能研究

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中圖分類號(hào)：TS76 文獻(xiàn)標(biāo)識(shí)碼：A DOI：10.11980/j.issn.0254-508X.2025.07.007

Abstract：Thisstudyemployedavacuumimpregnation methodtopreparecarboxymethylatedcelulosefiber（CMF）-carbonnanotube （CNT）-parafinwax（PW）compositeswithhighphasechangeenthalpyFirst，uniformlydispersed MNCMF-CNTaqueoussolutionswere preparedviahighspeedshearing.Then，MNCM-CNTaerogelswithaporoustructure wereobtainedbyfrez-drying，withCNTufoly distributedoneorewall.allherogelswereacu-impregatedithPW，flingterorandfoinableCC PWcomposites.TheresultsshowedthattheincorporationofCNTimprovedthetheralconductivityofthephasechangematerialfrom 0.283to0.327W/（m·K）.AditioalyMNCMF-CN-PW52displaedhighpasechangeenthalyandtenthatretention，hichde by paraffin wax with melting temperature of ，with melting and crystallization enthalpies of 217.7 and 217.9J/g ，respectively，and a latentheatretetioateof9.9%.urtheoe，C-opsiseielyd，tord，ndeasdal gy.When combined with a thermoelectric generator，they output electric energy consistently.

Key words： paraffin wax;cellulose aerogel; phase change material; thermal energy storage

相變材料是一類能夠在恒定溫度下發(fā)生物理狀態(tài)變化時(shí)吸收或釋放大量熱能的功能性材料。（剩余18208字）