聚氨酯固-固相变材料微相分离结构与相变原理分析

doi:10.19491/j.issn.1001-9278.2011.03.006

中国塑料 ›› 2011, Vol. 25 ›› Issue (03): 25-28 .DOI: 10.19491/j.issn.1001-9278.2011.03.006

聚氨酯固-固相变材料微相分离结构与相变原理分析

高毅田春蓉王建华

中国工程物理研究院化工材料研究所

收稿日期:2010-11-02 修回日期:2010-12-23 出版日期:2011-03-26 发布日期:2011-03-26

Microphase Separation Structure and Analysis of Phase Transition Theory of Polyurethane Phase Change Materials

GAO Yi

Received:2010-11-02 Revised:2010-12-23 Online:2011-03-26 Published:2011-03-26
Contact: GAO Yi

摘要/Abstract

摘要： 分别利用固-液相变材料聚乙二醇（PEG）为软段，1，4-丁二醇（BDO）为扩链剂，按照不同的质量百分比与多元醇改性二苯基甲烷-二异氰酸酯（改性MDI）反应制得一系列聚氨酯固-固相变材料（PUPCM）。利用偏光显微镜（POM）、差示扫描量热仪(DSC)等测试方法对其升温-降温热循环过程形态结构与性能变化进行在线观察。同时对样品进行原子力显微镜（AFM）检测，观察到其微相分离结构，并初步分析其相变实质为PUPCM中软段在热循环讨程中的结晶态-非结晶态转变，且其热力学性能、结晶性能等受到材料的微相分离结构影响。

关键词: 聚氨酯相变材料, 微相分离, 相变实质

Abstract: Using polyethylene glycol (PEG) as soft segments，1，4-butanediol(BDO)as chain extender, and modified MDI as curing agent，a series of polyurethane phase change materials (PUPCM) was obtained. The change in morphology and properties of PUPCM during heating-cooling cycles was online observed using polarization microscope(POM)，differential scanning caborimetry(DSC)，and other testing methods. Atomic force microscope(AFM) revealed that the nature of phase change during the thermal cycling was the crystalline-amorphous transition and the resulted microphase separation，which influenced the thermodynamic and crystallization properties.

Key words: PUPCM, microphase separation, phase change substance

高毅田春蓉王建华. 聚氨酯固-固相变材料微相分离结构与相变原理分析[J]. 中国塑料, 2011, 25(03): 25-28 .

GAO Yi. Microphase Separation Structure and Analysis of Phase Transition Theory of Polyurethane Phase Change Materials[J]. China Plastics, 2011, 25(03): 25-28 .

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聚氨酯固-固相变材料微相分离结构与相变原理分析

Microphase Separation Structure and Analysis of Phase Transition Theory of Polyurethane Phase Change Materials

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