| 高分子 Vol.62 No.10 |
| >> Chinese | >> English | >> Japanese | >> Korean |
特集 エネルギーマネジメントに寄与する光・熱制御材料
|
| 展望 COVER STORY: Highlight Reviews |
| 液晶・高分子ハイブリッド調光窓 Hybrid Materials of Liquid Crystal and Polymer Phases for Solar-Ray Control Windowpanes |
垣内田 洋・吉村 和記・荻原 昭文 Hiroshi KAKIUCHIDA, Kazuki YOSHIMURA, Akifumi OGIWARA |
| ＜要旨＞ 現在普及が進む省エネ窓は、高断熱・高遮熱で建物内外の熱移動を抑えて効果を得ている。しかし性能が固定で、夏冬両方に効果を上げることは難しく、この解決策として、季節に応じ日射制御する調光窓が提案されている。本稿では、その候補として期待される液晶・高分子メゾ相分離構造について、とくにホログラフィック型高分子分散液晶の例を中心に紹介する。 Keywords: Holographic Polymer Dispersed Liquid Crystal / Phase Separation / Orientational Order / Thermotropic / Bragg Diffraction / Coupled-Wave Theory / Solar Transmittance / Luminous Transmittance |
| ページトップへ▲ |
| 高反射率塗料 High Solar Reflectant Paint |
三木 勝夫 Katsuo MIKI |
| ＜要旨＞ 太陽から地球が受け取るエネルギーを塗膜で反射して宇宙へ帰し、地表を温めるエネルギーを軽減するのが高反射率塗料である。塗料の役割は、保護・美粧・機能であるが、これに反射する機能を付与している。ヒートアイランド対策、省エネルギー対策の材料として工場屋根面、ビル外壁面、道路舗装面、タンク、車両、船舶等に、幅広く応用されてきた。 Keywords: High Reflective Paint |
| ページトップへ▲ |
| バイオマスの構造を活かした太陽熱吸収材料 Novel Solar-Light Absorption Material Characterized by Structures of Bagasse Char |
近藤 義和 Yoshikazu KONDO |
| ＜要旨＞ バガス（サトウキビの絞り滓）は非常に優れたバイオマス資源である。特殊な多孔構造をもち、軽量性、防振性、防音性、断熱性等の優れた機能が発現する。炭化も容易であり、バガス炭では多様な多孔構造を有するために太陽光を広波長域で吸収する。その優れた光吸収特性を利用して太陽熱集熱材、断熱材、海水淡水化等への展開が可能である。 Keywords: Bagasse / Biomass / Solar / Pore / Absorption / Desalination / Carbonization / Charcoal |
| ページトップへ▲ |
| トピックス COVER STORY: Topics and Products |
| 冷熱蓄熱エネルギーのマイクロカプセル化技術 Phase Change Material for Cooling Application Loaded Microcapsule for Thermal Storage System |
吉田 昌弘・武井 孝行 Masahiro YOSHIDA, Takayuki TAKEI |
| ＜要旨＞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 |
| ページトップへ▲ |
| 銀ナノ石畳による熱線遮蔽技術 Heat Shield Technology with Nano Silver Pavement |
谷 武晴 Takeharu TANI |
| ＜要旨＞ 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 |
| ページトップへ▲ |
| CNT分散制御による絶縁樹脂の高熱伝導化技術 Carbon Nanotube/Polymer Composites Having High Thermal Conductivity and Electrical Insulation |
福森 健三 Kenzo FUKUMORI |
| ＜要旨＞ 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 |
| ページトップへ▲ |
| グローイングポリマー Polymer Science and I: A Personal Account |
| 高分子のクリエイティブ・デザイナーを目指して Polymer Science and I: A Personal Account |
織田 ゆか里 Yukari ODA |
| ＜要旨＞ 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. |
| ページトップへ▲ |
| 高分子科学最近の進歩 Front-Line Polymer Science |
| 高分子発泡技術の最新動向 Polymer Foams - State of the Art |
大嶋 正裕 Masahiro OHSHIMA |
＜要旨＞ 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”. |
| ページトップへ▲ |
| Copyright(C) 2012 The Society of Polymer Science, Japan All Rights Reserved. |