symtheses of new carbonaceous mesophase pitch using HF/BF_3

HF/BF_3合成新型碳质中间相沥青

• 批准号: 02453087
• 负责人: MOCHIDA Isao
• 金额: $ 4.35万
• 依托单位: Institute of Advanced Material Study, Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-02453087/
• 关键词: carbonaceous liquid crystal; HF; BF_3; naphthalene; methylnaphthalene; pitch based carbon fiber; carbon materials; carbon-carbon composite; mesophase

Preparation, structure, properties and a variety of application of mesophase pitches from aromatic hydrocarbons were examined to clarify their unique natures in the carbon science and technology. It was found HF/BF_3 catalyst oligomerizes a variety of aromatic hydrocarbons into oligomeras ranging dimers to decamers, which carries naphthenic hydrogens produced through aryl-reflecting their starting structure and polymerization conditions. For example, softening points of 100% anisotropic pitch range from 210 to 300ﾟC. The mesophase pitches showes excellent carbon yields of 80-90% under atmospheric pressure and over 90% under 3.1 MPa. High reactivity for oxidation in the air and thermal stability under inert atmosphere are additional advantage of the present pitch. Such properties allow a number of their applications for the carbon fiber, carbon tape, composites, high density carbon, porous carbon composite and carbon ceramic composite.

检查了来自芳香族碳氢化合物的中间液音调的制备，结构，特性以及各种应用，以阐明它们在碳科学和技术中的独特性质。发现HF/BF_3催化剂将各种芳族烃将二聚体的二聚体降解到decamer剂，该二聚体带有二聚体，该二聚体携带了通过芳基反射的起始结构和聚合条件产生的环烷基氢凝胶。例如，100％各向异性音高的软化点范围为210至300°C。在大气压力下，中间的音调显示出极好的碳产量为80-90％，超过90％以下3.1 MPa。空气中氧化的高反应性和惰性气氛下的热稳定性是当前音高的其他优势。这样的特性允许许多应用于碳纤维，碳胶带，成分，高密度碳，多孔碳复合材料和碳陶瓷复合材料的应用。

项目成果

Isao Mochida: "Blending of Mesophase Pitches to Enhance Their Stabilization Reactivity" Tanso. 149. 191-196 (1991)

Isao Mochida：“混合中间相沥青以增强其稳定反应性”Tanso。

Isao Mochida: "Mesophase pitch catalytically prepared from anthracene with HF/BF_3" Carbon.

Isao Mochida：“由蒽与 HF/BF_3 催化制备的中间相沥青”碳。

Isao Mochida: "The introduction of a skinーcore structure in mesophase pitch fibers through a successive stabilization by oxidation and solvent extraction" Carbon. 29. 23-29 (1991)

Isao Mochida：“通过氧化和溶剂萃取连续稳定，在中间相沥青纤维中引入皮芯结构”Carbon。29. 23-29 (1991)

Isao Mochida: "The introduction of a skin-core structure in mesophase pitch fibers through a successive stabilization by oxidation and solvent extraction" Carbon. 29. 23-29 (1991)

Isao Mochida：“通过氧化和溶剂萃取的连续稳定，在中间相沥青纤维中引入皮芯结构”碳。

Isao Mochida: "Mesophase pitch catalytically prepared from anthracene with HF/BF_3" Carbon. 30. 55-61 (1992)

Isao Mochida：“由蒽与 HF/BF_3 催化制备的中间相沥青”碳。