碳黑的表面臭氧氧化

研究了碳黑表面的臭氧氧化。研究表明，碳黑的表面含氧量与提供给单位碳黑表面的臭氧量成正比。臭氧氧化增加了碳黑的表面酸性。红外光谱及Ｘ光电子能谱表明，臭氧氧化在碳黑表面引进了羧基基团。氧化后的碳黑进一步加强了硝基丁二烯橡胶的物理性能。

Ozone Oxidation of Carbon Black Surfaces

The ozone oxidation of carbon black surfaces was studied. It was found that the oxygen concentration on carbon black surface is proportional to the ozone supplied per unit area of carbon black surface. The oxidation increases the surface acidity of the carbon black. Both infrared spectroscopy (IR) and x ray photoelectron spectroscopy (XPS) show that carboxylic acid groups have been introduced onto the carbon black surface. The oxidation further enhances the physical properties of carbon black filled nitrile butadiene rubber (NBR).