采用微波辅助原位氧化还原法制备长径比均匀的银纳米棒,研究了制备条件参数如催化剂浓度、表面活性剂与先驱体浓度比率等因素对制备银纳米材料的形貌的影响。以这些银纳米棒作为导电填料制备印刷用导电油墨,研究了填料含量、纳米棒及纳米粒子的比率对导电油墨的电导率、附着力、老化性能的影响。结果表明,当晶体生长催化剂NaCl与AgNO3的摩尔比为1∶5时,得到的银纳米材料中纳米棒比例达95%以上。对导电油墨的性能研究表明,当填料中银纳米棒比例为95%时得到的导电胶具有最低的渗滤阈值,为62%,同时经过80℃、85%RH老化环境老化500h后导电油墨的体积电阻率上升不超过10%。
Microwave-assisted method was used to prepare Ag nanorods with uniform sizes.The influence of parameters such as the concentration of catalyst,the concentration ratio of surfactant and precursor was studied.A novel kind of conductive inkjet was prepared by using these Ag nanoreods as conductive filler.The performances of the conductive inkjet such as percolation threshold of the filler,bonding strength and ageing resistant were studied.The results show that a mixture with 95% Ag nanorods can be obtained when the concentration ratio of AgNO3 to NaCl reaches to 5∶1.The percolation threshold of the conductive inkjet is 62% when 95% Ag nanorods are included in the filler.The ageing resistant measurements results show that the changes of the electrical conductivity of conductive inkjet are less than 10% after ageing under 85%RH and 80 ℃ condition for 500 h.
参考文献
| [1] | Jahn S F, Blaudeck T, Baumann R R. Inkjet printing of conductive silver patterns by using the first aqueous particle free MOD ink without additional stabilizing ligands [J]. Chemistry of Materials, 2010, 22(10): 3067-3071. |
| [2] | Dan Lawrence. High intelligence on conductive inks[J]. Ink Maker, 2004, 3(2): 12. |
| [3] | 陶宇,夏艳平,张国庆,等.填料长径比对导电胶渗滤阈值的影响[J].复合材料学报,2010,27(6):213-217. |
| [4] | Sivaramakrishnan S, Chia P J, Yeo Y C, et al. Controlled insulato- to metal transformation in printable polymer composites with nanometal clusters [J]. Nature Materials, 2007, 6(2): 149-155. |
| [5] | Kim D, Jeong S, Shin H, et al. Heterogeneous interracial properties of ink jet printed silver nanoparticulate electrode and organic emiconductor [J]. Advanced Materials, 2008, 20 (16): 3084-3089. |
| [6] | Liu Z C, Varahramyan K using silver nitrate ink conducting polymers[J]. Inkjet- printed silver conductors and their electrical contacts with Thin Solid Films, 2005, 478(1/2) :275-279 |
| [7] | Kim D, Jeong S, Moon J, et al. Ink-jet printing of silver conductive tracks on flexible subtrates[J]. Molecular Crystals and Liquid Crystals, 2006, 459(1): 45-55. |
| [8] | 吴海平,吴希俊,刘金芳,等.填充碳纳米管各向同性导电胶的性能[J].复合材料学报,2006,23(2):9-13. |
| [9] | Jiang D, Kim D, Lee B, et al. Nanosized glass flit as an adhension promoter for ink-jet printed conductive patterns on glass substrates annealed at high temperatures [J]. Advanced Functional Materials, 2008, 18(19): 2862-2868. |
| [10] | 吴海平,吴希俊,刘金芳,等.填充银纳米线各向同性导电胶的性能[J].复合材料学报,2006,23(5):24-28. |
| [11] | 夏艳平,陶宇,张国庆,等.填料形貌对导热胶渗流阈值的影响研究[J].功能材料,2010,41(S2):357-364. |
| [12] | Ye Lilei, Lai Zonghe, Liu Johan, et al. Effect of Ag particle size on electrical conductivity of isotropieally conductive adhesives[J]. lEEK Transactions on Electronics Packaging Manufacturing, 1999, 22(4): 299-302. |
| [13] | Xue Q Z, Model for effective nanofluids [J]. Physics Letter A, thermal conductivity of 2003, 307(1): 313-317 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%