欢迎登录材料期刊网

材料期刊网

高级检索

采用溶液接枝聚合法,在异氰酸酯存在下,将聚乙二醇(PEG)分别链接到纤维素(Cell-OH)、纤维素醋酸酯(CDA)及纤维素月桂酸酯(LACE)骨架高分子材料上,制备了 Cell-OH/PEG、CDA/PEG 和 LACE/PEG 3种固-固相变储能材料,并通过FT-IR、TEM、POM、XRD和 DSC 等分析手段,对3种产物结构、结晶特性及相变储能性能等进行了比较研究。结果表明,随着与 PEG 接枝聚合的纤维素酯链的增长,所得产物形成酯链包裹PEG的胶囊的趋势越强,对PEG结晶的破坏程度越小,从而使产物的相变焓越高。

This study based on the preparation of Cell-OH/PEG,CDA/PEG and LACE/PEG as solid-solid phase change materials (PCMs)for latent heat energy storageby solution graft copolymerization in the presence of Toluene diisocyanate (TDI)was described.The differences of the structures,crystallization properties and phase change energy storage performance of the obtained three products were characterized using Fourier transformin-frared (FT-IR)spectroscopy,Transmission Electron Microscopy(TEM),polarized optic microscopy (POM), Wide angle X-ray diffraction (WAXD)patterns and differential scanning calorime (DSC)techniquesetc.The re-sults showed that the products showed a stronger capsule trend of the formation of ester chain wrapping PEG with the growth of PEG and graft polymerization of cellulose ester chain,which also showedthe smaller the de-gree of damage to the PEG crystallization,consequentlythe higher the phase transition enthalpy of the product.

参考文献

[1] Waqar A. Qureshi;Nirmal-Kumar C. Nair;Mohammad M. Farid.Impact of energy storage in buildings on electricity demand side management $1Waqar A. Qureshi$1Nirmal-Kumar C. Nair$2Mohammad M. Farid;[J].Energy conversion & management,20115(5):2110-2120.
[2] E. Oro;A. de Gracia;A. Castell;M.M. Farid;L.F. Cabeza.Review on phase change materials (PCMs) for cold thermal energy storage applications[J].Applied energy,2012:513-533.
[3] Belen Zalba;Jose M Marin;Luisa F. Cabeza;Harald Mehling.Review on thermal energy storage with phase change: materials, heat transfer analysis and applications[J].Applied thermal engineering: Design, processes, equipment, economics,20033(3):251-283.
[4] Wang SX;Li Y;Hu JY;Tokura H;Song QW.Effect of phase-change material on energy consumption of intelligent thermal-protective clothing[J].Polymer Testing,20065(5):580-587.
[5] 方玉堂;康慧英;张正国;高学农.聚乙二醇相变储能材料研究进展[J].化工进展,2007(8):1063-1067.
[6] Li, Yanxiang;Wu, Min;Liu, Ruigang;Huang, Yong.Cellulose-based solid-solid phase change materials synthesized in ionic liquid[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,20098(8):1321-1328.
[7] Ya Nan ZANG;En Yong DING.Energy Storage Properties of Phase Change Materials Prepared from PEG/CPP[J].中国化学快报(英文版),2005(10):1375-1378.
[8] 哈丽丹·买买提;库尔班江·肉孜;阿不利米提;阿依努尔.共反应剂法均相合成长链脂肪酸纤维素酯[J].化工学报,2010(11):3014-3019.
[9] 哈丽丹·买买提.纤维素LiCl/DMAc溶液的制备及其稳定性[J].纺织学报,2010(08):6-11.
[10] Bo Sun Lee;Byoung Chul Chun;Yong-Chan Chung;Kyung Il Sul;Jae Whan Cho.Structure and Thermomechanical Properties of Polyurethane Block Copolymers with Shape Memory Effect[J].Macromolecules,200118(18):6431-6437.
[11] Li YX;Liu RG;Huang Y.Synthesis and phase transition of cellulose-graft-poly(ethylene glycol) copolymers[J].Journal of Applied Polymer Science,20083(3):1797-1803.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%