POLYMERS Vol.62 No.10
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特集
贡献与能源管理的光热控制材料
展望
液晶高分子复合调光窗 亘内田 洋,吉村和记,荻原昭文
<Abstract> 现在普及的节能窗是通过高隔热,高绝热来控制建筑物内外的热移动而实现节能的。但因其性能固定,故很难在冬夏两季同时得到良好的效果,作为一种解决方案,我们推出了一种可根据季节控制日照强度的调光窗。本文介绍了一种被人们期待的液晶高分子相分离结构,尤其对全息聚合物分散液晶的应用例子为中心进行了阐述。
Keywords: Holographic Polymer Dispersed Liquid Crystal / Phase Separation / Orientational Order / Thermotropic / Bragg Diffraction / Coupled-Wave Theory / Solar Transmittance / Luminous Transmittance
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高反射率涂料 三木胜夫
<Abstract> 地球把从太阳照射获得的能量用凃膜反射的方式反射到宇宙中,从而减轻加热地表的能量,这就是高反射率涂料。涂料的作用包含保护,美粧和功能,我们给它赋予了反射的功能。作为一种解决城市热岛效应的对策,节能的有效材料,这种高反射率涂料广泛地被利用于工厂屋顶,高楼外墙,道路表面,各种储罐,车辆,船舶等各种领域。
Keywords: High Reflective Paint
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有效利用生物质结构的太阳热吸收材料 近藤义和
<Abstract> 蔗渣(甘蔗的渣质)是非常优良的生物质资源。它具有特殊的多孔结构,显示出优良的轻量性,防震性,隔音性及隔热性等功能。而且比较容易碳化,其碳化材料具有多样的多孔结构可吸收多重波长的太阳光。可以利用这种光吸收特性,这种材料可应用在太阳热集热材,绝热材,海水淡化等各种领域。
Keywords: Bagasse / Biomass / Solar / Pore / Absorption / Desalination / Carbonization / Charcoal
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话题
冷热蓄热能量的微胶囊化技术 吉田昌弘,武井孝行
<Abstract> In the present study, we attempted to prepare phase change material (PCM)-loaded microcapsules of several hundred micrometers in diameter via surface polymerization. An oil phase with two types of isocyanate monomers (2,4-toluene diisocyanate (TDI) and phenyl isocyanates (PI)) and fatty acids as PCM was dispersed in an aqueous phase. The polyurea shell of microcapsules was formed by reaction of the isocyanate monomers with the amine groups derived from hydrolyzed isocyanate monomers. Adjusted agitation rate made it possible to prepare the microcapsules of several hundred micrometers in diameter. Increased molar ratio of TDI to PI in oil phase resulted in improvement of microcapsule morphology. Increased weight ratio of fatty acids to the two isocyanate monomers (TDI and PI) leaded to increase in the content of the PCM in the microcapsules, which is preferable for practical application. An examination using differential scanning calorimetry analyzer demonstrated that polyurea shell of the microcapsules scarcely influenced thermal properties of encapsulated fatty acids.
Keywords: Microencapsulation / Phase Change Material / Fatty Acid / Polyurea Shell / Thermal Storage System / Surface Polymerization
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利用纳米银路面的热遮蔽技术 谷 武晴
<Abstract> We made a wavelength selective reflection film with nano silver pavement. Simulation results show that closely packed silver nano-disks sispersed in a monolayer can reflect near infrared light. The fabricated film is transparent for visible light. This film can be used for heat shield film on a window glass.
Keywords: Heat Shield / Silver / Plasmon / FDTD / Metasurface
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利用CNT分散控制的绝缘树脂的高导热化技术 福森健三
<Abstract> With their excellent mechanical, electrical, and thermal properties, carbon nanotubes (CNTs) have recently attracted attention as nanofillers that may efficiently improve the physical properties of polymers. In practice, CNTs have not yet been incorporated into polymer matrices in order to enhance the thermal conductivity of electrically insulating polymer components because even a few CNTs impart a high electrical conductivity to the polymers. We design and propose a novel morphological model for CNT/polymer composites with high thermal conductivity and electrical insulation. In the proposed morphology, the CNT/polymer composites are composed of a matrix polymer and a CNT-localizing domain polymer encapsulated by a shell-forming component, which contributes to the selective localization of the CNTs into the dispersed domains. In engineering applications of the proposed model, the CNT/polymer composites used as the polymer matrix are expected to efficiently provide outstanding thermal conductivity and high electrical insulation at lower loadings of thermally conductive inorganic fillers.
Keywords: Carbon Nanotube / Polymer Blend / Composite / Morphology / Thermal Conductivity / Electrical Insulation / Inorganic Filler
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高分子科学与我: 个人独白
憧憬成为一名创意型高分子设计师 织田Yukari
<Abstract> Dreaming of doing “creative work” in the future, I have just taken the first step in my education and research career. Although it is a long and tough road to become an innovative researcher, I would like to pursue creativity in my research little by little.
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高分子科学最新进展
高分子发泡技术的最新动向 大嶋正裕
<Abstract> The state of the art of polymer foaming technology is described. This review focuses especially on the reduction of cell size to nanoscale to prepare “nanocellular foam”.
Keywords: Polymer Foam / Nanocellular Foam / Microcellular Foam / Nanocapsule / Nanofibril / Open Cell / Closed Cell
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