气凝胶
材料科学
热稳定性
聚乙烯醇
化学工程
热导率
复合材料
PEG比率
财务
工程类
经济
作者
Zijian Bai,Hong Zhang,Haotong Zhu,Jianyu Jiang,Dongnan Zhang,Yue Yu,Fengyu Quan
标识
DOI:10.1016/j.carbpol.2023.121037
摘要
This paper presents a novel approach for the fabrication of polyvinyl alcohol (PVA)/sodium alginate (SA) aerogel fibers with a multilayered network structure using wet spinning and freeze-thaw cycling techniques. The multiple cross-linking networks regulate the pore structure, leading to the formation of stable and tunable multilevel pore architectures. PEG and nano-ZnO were successfully loaded onto the PVA/SA modified aerogel fibers (MAFs) using vacuum impregnation. MAFs exhibited excellent thermal stability at 70 °C without leakage after 24 h of heating. Furthermore, MAFs demonstrated excellent temperature regulation performance, with a latent heat of 121.4 J/g, which accounts for approximately 83 % of PEG. After modification, the thermal conductivity of MAFs was significantly improved, and they exhibited excellent antibacterial properties. Therefore, MAFs are expected to be widely used in intelligent temperature-regulating textiles.
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