高相变焓羧甲基化纤维素纤维-碳纳米管-石蜡相变复合材料的制备与储热性能研究

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中图分类号：TS76 文献标识码：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

相变材料是一类能够在恒定温度下发生物理状态变化时吸收或释放大量热能的功能性材料。（剩余18208字）