a College of Chemistry, Chemical Engineering and Materials Science & Key Laboratory of Organic Synthesis of Jiangsu Province, Soochow University, SIP, Suzhou 215123, China b College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China c Jiangsu Provincial Key Laboratory of Environmental Materials and Engineering, Yangzhou University, Yangzhou 225002, China d Suzhou Nanocomp Inc., Suzhou New District, Suzhou 215011, China Chem. Eng. J. 2014, 253, 107-120 A new route is presented for the production of carbon black (CB) in which the propane is cracked into CB and hydrogen using electric energy from a low-current, high-voltage plasma discharge. The spherical CB produced by this process possessed a narrow size distribution, an average diameter of 50 nm and a high oil absorption number (OAN) of 136 mL/100 g. The prepared CB nanoparticles were first hydroxymethylated with a formaldehyde solution and subsequently oxidized using concentrated nitric acid to introduce hydroxyl and carboxyl acid groups onto the CB surface. These hydrophilic groups were beneficial for breaking up the large CB particles into smaller particles, and they significantly improved the dispersity of the CB nanoparticles in aqueous media. The modified CB was then coated by polyvinylpyrrolidone (PVP), in which the carbonyl oxygens acted as proton acceptors to form hydrogen bonds with the carboxyl acid groups. Finally, the PVP-coated CB was dispersed in an aqueous solution and was formulated into a pigmented ink-jet ink. The physical and printing properties of the prepared ink were demonstrated to be comparable with the commercial ink. 链接： //www.sciencedirect.com/science/article/pii/S1385894714006184#
