Lee Ji-Hyeon, Kim Jin-Ho, Hwang Kwang-Taek, Hwang Hae-Jin, Han Kyu-Sung
Korea Institute of Ceramic Engineering and Technology, Icheon Branch Icheon 17303 Republic of Korea
Division of Material Science and Engineering, Inha University Incheon 22212 Republic of Korea.
RSC Adv. 2020 Jan 14;10(4):2428-2436. doi: 10.1039/c9ra09595k. eCollection 2020 Jan 8.
We herein reported the preparation of an eco-friendly aqueous yellow ceramic ink and subsequent examination of its printability for ink-jet printing applications. For this purpose, a water based ceramic ink was formulated using ceramic pigments to give a clear color during high-temperature heat treatment (>1000 °C), ultimately yielding an ink suitable for application in ceramic tile decoration. To improve the low dispersion stability of the aqueous ceramic ink compared to that of a conventional organic solvent-based ceramic ink, the pigment particles were dispersed using a graft polymer. More specifically, this graft polymer was composed of polyacrylic acid as the main chain to provide electrostatic repulsion and grafted poly(ethylene glycol) methyl ether methacrylate as the side chain to provide steric hindrance. Furthermore, additive-induced foaming issues were significantly reduced through the use of this graft polymer as a surfactant. The effects of the rheological properties of the prepared ceramic ink and the subsequent operation conditions of the piezoelectric print head were then investigated in detail to optimize the ink jettability and printability.
我们在此报告了一种环保型水性黄色陶瓷墨水的制备以及随后对其用于喷墨打印应用的可打印性的研究。为此,使用陶瓷颜料配制了一种水基陶瓷墨水,以便在高温热处理(>1000°C)期间呈现清晰的颜色,最终得到一种适用于瓷砖装饰的墨水。为了改善水性陶瓷墨水与传统有机溶剂基陶瓷墨水相比低分散稳定性的问题,使用接枝聚合物分散颜料颗粒。更具体地说,这种接枝聚合物由聚丙烯酸作为主链以提供静电排斥作用,以及接枝的聚(乙二醇)甲基醚甲基丙烯酸酯作为侧链以提供空间位阻。此外,通过使用这种接枝聚合物作为表面活性剂,添加剂引起的起泡问题显著减少。然后详细研究了制备的陶瓷墨水的流变性能以及压电打印头的后续操作条件的影响,以优化墨水的喷射性和可打印性。