中国造纸2025，Vol.44Issue(7)：53-63,11.DOI:10.11980/j.issn.0254-508X.2025.07.007
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
Preparation and Thermal Energy Storage Performance of High Thermal Energy Density MNCMF-CNT-PW Phase Change Composites
摘要
Abstract
This study employed a vacuum impregnation method to prepare carboxymethylated cellulose fiber(CMF)-carbon nanotube(CNT)-paraffin wax(PW)composites with high phase change enthalpy.First,uniformly dispersed MNCMF-CNT aqueous solutions were prepared via high-speed shearing.Then,MNCMF-CNT aerogels with a porous structure were obtained by freeze-drying,with CNT uniformly distributed on the pore walls.Finally,the aerogels were vacuum-impregnated with PW,filling their pores and forming stable MNCMF-CNT-PW composites.The results showed that the incorporation of CNT improved the thermal conductivity of the phase change material from 0.283 to 0.327 W/(m·K).Additionally,MNCMF-CNT2-PW52 displayed high phase change enthalpy and latent heat retention,which made by paraffin wax with melting temperature of 52～54℃,with melting and crystallization enthalpies of 217.7 and 217.9 J/g,respectively,and a latent heat retention rate of 97.9%.Furthermore,MNCMF-CNT2-PW52 composites effectively collected,stored,and released thermal ener-gy.When combined with a thermoelectric generator,they output electric energy consistently.关键词
石蜡/纤维素气凝胶/相变材料/热能存储Key words
paraffin wax/cellulose aerogel/phase change material/thermal energy storage分类
轻工纺织引用本文复制引用
陈瑾轩,贺莹莹,陈港..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[J].中国造纸,2025,44(7):53-63,11.基金项目
广东省自然科学基金项目(2021A1515010538) （2021A1515010538）
制浆造纸工程国家重点实验室项目(2020ZD02) （2020ZD02）
国家重点研发计划(2018YFC1902102). （2018YFC1902102）
