Synthesis of silver nano particles and fabrication of aqueous Ag inks for inkjet printing
Synthesis of silver nano particles and fabrication of aqueous Ag inks for inkjet printing
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DOI：
10.1016/j.matchemphys.2011.05.064
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发表时间：
2011-10-03
影响因子：
4.6
通讯作者：
Kirby, A.
中科院分区：
文献类型：
--
作者：
Kosmala, A.;Wright, R.;Kirby, A.
制备稳定、可印刷的纳米喷墨油墨的主要问题是克服纳米颗粒在分散介质中的团聚现象。在本研究中，用简单的湿化学方法制备了直径在50 nm左右的银粒子。通过使用三嵌段共聚物和高强度聚焦超声(HIFU)的组合，配制了稳定的水性可打印油墨。考察了共聚物含量、HIFU处理时间等因素对油墨稳定性的影响。含5wt%银的油墨在25℃时的粘度约为2 mpa S，表面张力为30mN m(-1)，满足喷墨打印机的要求。这种油墨已成功地印刷在氧化铝陶瓷和低温共烧陶瓷(LTCC)上，印刷出的薄膜具有较低的电阻率。(C)2011爱思唯尔B.V.保留所有权利。
The main problem in preparing stable and printable inks containing nanoparticles for inkjet printing is to overcome the strong agglomeration of the particles in dispersion medium. In this study, the silver particles with diameter around 50 nm were produced by a simple wet chemistry method. Stable aqueous printable inks were formulated by using the combination of a triblock copolymer and high intensity focused ultrasound (HIFU). Various factors that affect the ink stability, such as, copolymer content and time of HIFU treatment, were investigated. The ink containing 5 wt% silver has a viscosity of about 2 mPa s and surface tension 30 mN m(-1) at 25 degrees C, which meet inkjet printer requirements. Such inks have been successfully printed on Al2O3 ceramics and low-temperature co-fired ceramics (LTCC) and the printed films show low resistivity. (C) 2011 Elsevier B.V. All rights reserved.