Preparation and Application of Ultra-thin Carbon (graphite) Ribbon

超薄碳（石墨）带的制备及应用

• 批准号: 06453085
• 负责人: MOCHIDA Isao
• 金额: $ 4.54万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06453085/
• 关键词: pitch; Carbon Ribbon; Graphite Ribbon; Ribbon; melt spinning; Orientation; Slit; mesophase pitch; 黒鉛リボン; 薄膜炭素; 配向度; 電気伝導度; 熱伝導度; 引張強度; 引張弾性率; 炭素繊維; Slit型ノズル; 延伸不融化; 断面組織

A mesophase pitch of 100% anisotropy prepared from methylnaphthalene using HF/BF_3 was spun through the slit-shaped nozzle in a temperature range of 260-275ﾟC.Very thin fibers were obtained, about 2-5mum in thickness and 10-18mum in width, according to spinning temperatere. The slit-shaped transversal section of tape was observed under optical microscope, scanning, and transmission electron microscopes. The symmetric Double Layr is proposed as a model of the cross-sectional texture, which carried radial orientation at the semicircular edges, onion-skin at the flat edges, alignments perpendicular to the flat edges in the intermediate parts, and aligunments parallel to the major axis at the central part of the ellipse fiber. Present carbon fibers exhibited better mechanical properties, as compared to those of round fibers spun through conventional circular nozzles. The fibers after graphitization at 2500ﾟC showed excellent tensile stength modulus as high as 340-395Kg/mm^2 and 84-92ton/mm^2, respectively. The particular shape and texture of transversal scction appears principally responsible for such tensile propertics.

使用HF/bf_3从甲基二甲烯制备的100％各向异性的中间相距通过缝隙形喷嘴旋转，温度为260-275°C。根据旋转温度，获得了非常薄的纤维，厚度约为2-5mum，宽度为10-18mum。在光学显微镜，扫描和透射电子显微镜下观察到胶带的缝隙形横向部分。提出对称双层作为横截面纹理的模型，该模型在半圆形边缘处携带径向取向，在平坦边缘处的洋葱皮，垂直于中间部件的平坦边缘的对齐，以及与椭圆纤维中部的主要轴平行的对齐。与通过常规的圆形喷嘴相比，当前的碳纤维暴露了更好的机械性能。 2500 C下石墨化后的纤维分别显示出出色的拉伸刚性模量高达340-395kg/mm^2和84-92 ton/mm^2。横向侦察的特定形状和纹理似乎主要负责这种拉伸性能。

项目成果

Y.Korai,S.Ishida,S-H.Yoon,Y G.Wang,I.Mochida,Y.Nakagawa,Y.Sakai and M.Komatsu: "Efficient Preparation of Meso-Carbon Microbeads from Synthetic Isotropic Pitch Derived from Naphthal" Carbon. 34・12. 1569-1576 (1996)

Y. Korai、S. Ishida、S-H. Yoon、Y G. Wang、I. Mochida、Y. Nakakawa、Y. Sakai 和 M. Komatsu：“从萘二甲酸衍生的合成各向同性沥青中有效制备介观碳微珠” 34·12。1569-1576（1996）

Isao Mochida,Seong-Ho Yoon,Yozo Korai: "Preparation and Structure of Mesophase Pitch Based Thin Carbon Tape" J.Mater.Sci.28. 2135-2142 (1993)

Isao Mochida、Seong-Ho Yoon、Yozo Korai：“中间相沥青基薄碳带的制备和结构”J.Mater.Sci.28。

Y.Korai.Y-G.wang.S-H.Yoon.S.Ishida and I.mochida: "Preparation of meso-carbon microbeads with uniform diameter from AR-isotropic pitch in the presence of carvon black" Carbon. Vol.34, No.9. 1156-1159 (1996)

Y.Korai.Y-G.wang.S-H.Yoon.S.Ishida 和 I.mochida：“在香芹黑存在下，由 AR 各向同性沥青制备直径均匀的中间相碳微珠”。

I.Mochida,S.H.Yoon,N.Takano,E.Fprtin,Y.Korai and K.Yokogawa: "Microstructure of Mesophase Pitch based Carbon Fiber and its Control" Carbon. 34・8. 941-956 (1996)

I. Mochida、S. H. Yoon、N. Takano、E. Fprtin、Y. Korai 和 K. Yokokawa：“中间相沥青基碳纤维的微观结构及其控制” 34・8 (1996)。

I.Mochida,K.H.An,K.sakanishi,Y.Korai: "Preparation of Nitrogen rich Pitches from Diazanaphtalenes Using AIC3" Carbon. 34. 601-608 (1996)

I.Mochida、K.H.An、K.sakanishi、Y.Korai：“使用 AIC3 从二氮萘制备富氮沥青”碳。