摘要
介绍了以纳米纤维素(NCC)为骨架材料、聚乙二醇(PEG)为相变储能功能基,采用化学接枝的方法制备一种NCC/PEG固-固相变材料。并分别用IR、DSC以及TGA等技术手段对其储能性能进行表征。结果表明,以纳米纤维素为骨架材料制备的固-固相变材料具有更高的相变焓,所得的相变材料具有更好的储能效率,其相变焓最大可达103.8J/g。
A new kind of solid-solid phase transition material （PCM） was prepared. The material is composed of two parts,in which polyethylene glycol （PEG） is the functional surface for energy storage and nano-crystalline cellulose （NCC） is the skeleton. The flexible polymer PEG was grafted onto the surface of the rigid polymer NCC through covalent bonds. Furthermore energy storage properties of PCM were studied by means of FF-IR, DSC, TGA, etc.. Results show that PCM possesses high enthalpy of phase transition up to 103.8 J/g, and high efficiency of energy storage.
出处
《林产化学与工业》
EI
CAS
CSCD
2007年第2期67-70,共4页
Chemistry and Industry of Forest Products
关键词
纳米纤维素
固-固相变材料
化学接枝
储能效率
nano-crystalline cellulose
solid-solid phase transition material
chemical grafting
efficiency of energy storage
