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Development of the functional particle manufacture process by carbon hybrid costing

通过碳混合成本法开发功能颗粒制造工艺

基本信息

批准号：
12555217
负责人：
OKUYAMA Kikuo
金额：
$ 8.7万
依托单位：
HIROSHIMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12555217/
关键词：
Particle Carbon black Coating Surface modification Iron oxide Molecule simulation Hybrid particle Organic SILANE ユーティングペースト材料吸着

项目摘要

Carbon black has been known to exhibit some outstanding functions, such as strong coloring power and high electrical conductivity. However, since it presents as small particles so that the dispersibility is poor and hardly to control as well as causes worse environment aggravation. Although the direct carbon black particles were conventionally supplied and mixed with hydrosol, they can not form composites as well as hybridization. This research developed a process, where carbon black particles were uniformly coated on the surface of core particles. The experiments were designed by considering the present available theories.1) Surface modification was performed by adsorbing the organic compound of a SiH_4 on the surface of iron oxide particles.2) The carbon black particles were mixed with high concentration hydrosol of the iron oxide particles, at which the surface modification was carried out. The conditions of which a SiH_4 organic matter can adsorb carbon black particles as a paste agent were clarified experimentally.3) The adhesion state of the carbon black of the surface of the oxide particles was observed, and the mechanism of carbon coating was clarified.4) The principle to which carbon black can coat the surface of the iron oxide particles was obtained by Molecule simulation. The experimental and simulation results were compared and examined.5) The validity of this method was also examined on the coating of other oxide particles.

炭黑具有很强的着色力和导电性等优异的性能。然而，由于它以小颗粒形式存在，因此其稳定性差，难以控制，并且造成更严重的环境恶化。虽然直接炭黑颗粒常规地供应并与水溶胶混合，但它们不能形成复合物以及杂化。该研究开发了一种将炭黑颗粒均匀涂覆在核心颗粒表面的工艺。在现有理论的基础上，设计了以下实验：1）通过在氧化铁颗粒表面吸附有机化合物SiH_4进行表面改性; 2）将炭黑颗粒与高浓度氧化铁水溶胶混合，进行表面改性。实验阐明了SiH_4有机物吸附炭黑颗粒作为糊料的条件; 3）观察了炭黑在氧化铁颗粒表面的附着状态，阐明了炭黑包覆的机理; 4）通过分子模拟得到了炭黑包覆氧化铁颗粒表面的原理。将实验结果与模拟结果进行了比较和检验。5）对其他氧化物颗粒的包覆情况也验证了该方法的有效性。