Development of the functional particle manufacture process by carbon hybrid costing

众所周知，炭黑具有一些突出的功能，如着色力强和导电性高。但由于其呈小颗粒状，分散性差，难以控制，对环境造成更严重的恶化。虽然直接炭黑颗粒通常被提供并与纯溶胶混合，但它们不能形成复合材料和杂化。本研究开发了一种将炭黑颗粒均匀涂覆在芯粒表面的工艺。这些实验是根据目前可用的理论设计的。1)将SiH_4有机化合物吸附在氧化铁颗粒表面进行表面改性。2)将炭黑颗粒与氧化铁颗粒的高浓度纯溶胶混合，在此基础上进行表面改性。实验明确了SiH_4有机物质作为浆料吸附炭黑颗粒的条件。3)观察氧化颗粒表面炭黑的附着状态，明确碳包覆机理。4)通过分子模拟得到了炭黑在氧化铁颗粒表面涂覆的原理。对实验结果和仿真结果进行了比较和检验。5)在其他氧化物颗粒的涂层上也验证了该方法的有效性。

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.