材料科学
环境友好型
原子转移自由基聚合
纤维素
纳米技术
表面改性
丙烯酸酯
制作
表面能
相(物质)
储能
化学工程
复合材料
聚合
聚合物
共聚物
有机化学
化学
功率(物理)
生态学
替代医学
量子力学
病理
工程类
物理
医学
生物
作者
Yongqiang Qian,Na Han,Xuefeng Gao,Xiyin Gao,Wei Li,Xingxiang Zhang
标识
DOI:10.1016/j.cej.2021.128596
摘要
Phase change fibres (PCFs) with excellent thermal energy storage abilities and suitable tuneable temperature properties are of high interest for not only providing human comfort but also reducing energy waste. However, the complex fabrication process and the fragility and low durability of PCFs are issues that must be addressed to widen the scope of their application. Herein, a facile, environmentally friendly, and low-cost strategy of photoinduced metal-free surface-initiated atom transfer radical polymerization (SI-ATRP) was adopted to fabricate multifunctional cellulose-based PCFs, which were composed of cellulosic fibres as supporting materials and poly (hexadecyl acrylate) (PA16) as phase change working substances. Through UV irradiation, PA16 was covalently grafted to the surface-modified fibres and wrapped around them, which formed core-shell-like structures. The resulting PCFs exhibited high phase-change enthalpies (73 J/g), excellent tensile strengths (10.5 MPa), and superhydrophobicity. Furthermore, the thermal management was investigated experimentally. The results demonstrated the outstanding thermal-regulable properties. Thus, this work not only highlights the material design and preparation but also provides environmentally friendly and high-performance PCFs with great potential application prospects for a variety of fields.
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