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首页> 外文会议>International Conference on Digital Printing Technologies: Final Program and Proceedings; 20050918-23; Baltimore,MD(US) >Stability of Nonaqueous Ink-jet Inks as Studied by Single-Particle Optical Sensing
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Stability of Nonaqueous Ink-jet Inks as Studied by Single-Particle Optical Sensing

机译：单颗粒光学传感研究非水性喷墨油墨的稳定性

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摘要

Non-aqueous ink-jet inks and their long-time stability at different temperatures were studied using single-particle optical sensing (SPOS). Samples ground for the same period but having different amphiphilic polymer additives used for steric stabilization were prepared. SPOS characterizes the particle size distribution at the high end of the panicle diameter ( > 0.5 μm). In the aging at different temperatures, the high-end size distribution exhibited changes ascribed to sedimentation and aggregation. In the absence of aggregation, the decrease of the particle volume was identified as originating from sedimentation; the dependence on particle diameter and viscosity agreed with theoretical prediction. The aggregation appeared as a hump in the tail of the main peak. The hump was more clearly observed for inks aged at a higher temperature and having more loosely adsorbed polymer additives.
机译：使用单粒子光学传感（SPOS）研究了非水性喷墨油墨及其在不同温度下的长期稳定性。制备了同时研磨但具有用于空间稳定化的不同两亲聚合物添加剂的样品。 SPOS表征了穗直径高端（> 0.5μm）的粒径分布。在不同温度下的老化中，高端尺寸分布表现出归因于沉降和聚集的变化。在没有聚集的情况下，颗粒体积的减少被认为是由于沉淀引起的。对粒径和粘度的依赖性与理论预测一致。聚集在主峰的尾部表现为驼峰。对于在较高温度下老化并且具有较松散地吸附的聚合物添加剂的油墨，更清楚地观察到了驼峰。

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