欧孝宇,张运生,李旭,陈琛,黄鹏,祖成奎.丙烯酸树脂添加剂对银纳米线透明导电膜的影响[J].表面技术,2024,53(18):192-198, 209.
OU Xiaoyu,ZHANG Yunsheng,LI Xu,CHEN Chen,HUANG Peng,ZU Chengkui.Effect of Acrylic Resin Additives on Transparent Conductive Films of Silver Nanowires[J].Surface Technology,2024,53(18):192-198, 209 |
| 丙烯酸树脂添加剂对银纳米线透明导电膜的影响 |
| Effect of Acrylic Resin Additives on Transparent Conductive Films of Silver Nanowires |
| 投稿时间：2023-09-14 修订日期：2024-01-06 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.18.017 |
| 中文关键词: 银纳米线 丙烯酸树脂 棒涂 光电性能 品质因数 附着力 |
| 英文关键词:silver nanowires acrylic resin rod coating optoelectronic properties quality factor adhesion |
| 基金项目: |
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| Author | Institution |
| OU Xiaoyu | China Building Materials Academy Co., Ltd., Beijing 100024, China |
| ZHANG Yunsheng | China Building Materials Academy Co., Ltd., Beijing 100024, China |
| LI Xu | China Building Materials Academy Co., Ltd., Beijing 100024, China |
| CHEN Chen | China Building Materials Academy Co., Ltd., Beijing 100024, China |
| HUANG Peng | China Building Materials Academy Co., Ltd., Beijing 100024, China |
| ZU Chengkui | China Building Materials Academy Co., Ltd., Beijing 100024, China |
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| 中文摘要: |
| 目的 通过丙烯酸树脂共混改性银纳米线溶液，弥补了银纳米线附着力差的缺点。方法 采用不同槽深的线棒在玻璃基底上多次涂覆，制备了含不同丙烯酸树脂添加量的银纳米线透明导电膜，利用扫描电子显微镜、原子力显微镜、透光率/雾度测定仪、非接触式电阻测试仪和百格法分别对银纳米线透明导电膜的表面形貌、表面粗糙度、透光率、雾度、方阻和附着力进行表征和测试，并通过最小二乘法将数据拟合得到银纳米线透明导电膜的透光率和方阻的关系。结果 随着丙烯酸树脂添加量的增加，银纳米线透明导电膜的附着力增强。在线棒槽深相同、丙烯酸树脂溶液添加量≤6%时，随着涂覆次数的增加，银纳米线透明导电膜的透光性下降、雾度上升，方阻逐渐降低;通过数据拟合发现，透光率与方阻的平方呈负相关，采用更大线棒槽深制备的银纳米线透明导电膜有更高的品质因数，在丙烯酸树脂添加量为4%(体积分数)、线棒槽深20 μm、涂覆12次时，制备了透光率为84.3%、雾度为2.81%、方阻为28 Ω/□的高品质因数银纳米线透明导电膜。结论 丙烯酸树脂溶液可以有效提升银纳米线透明导电膜的附着力，而丙烯酸树脂具有绝缘性，过量添加会增大银纳米线的接触电阻，使银纳米线网络的导电性下降。 |
| 英文摘要: |
| Transparent conductive films have been a hot research field in recent years. Among numerous transparent conductive materials, transparent conductive films of silver nanowires have been widely studied due to their higher optoelectronic properties and simpler preparation processes. However, poor adhesion has been a major drawback of the application of silver nanowires in transparent devices. Therefore, the work aims to solve the problem of poor adhesion of silver nanowires networks by adding an acrylic resin solution. By adding acrylic resin additives to silver nanowires solutions, the effects of different amounts of acrylic resin solutions on the photoelectric property and adhesion of transparent conductive films of silver nanowires were investigated. Due to the poor compatibility between ethanol and acrylic resin solution, a centrifugal washing method was employed to change the solvent of silver nanowires solution from ethanol to ethylene glycol methyl ether. The transparent conductive films of silver nanowires, with different amounts of acrylic resin, were prepared on a glass substrate with wire rods of different groove depths. The surface morphology and roughness of the transparent conductive films of silver nanowires were characterized by scanning electron microscopy and atomic force microscopy. It was found that the surface roughness of the transparent conductive films of silver nanowires decreased with the increase of the amount of acrylic resin added and the depth of the wire rod. The transparent conductive films of silver nanowires were tested by a transmittance/haze tester and a non-contact resistance tester. It was found that under the same specifications of the wire rod and the addition of acrylic resin solution ≤ 6%, as the coating frequency increased, the transparency of the transparent conductive films of silver nanowires decreased and the haze increased, while the square resistance gradually decreased and finally tended to be flat. When the amount of acrylic resin added was ≥ 7%, as the coating frequency increased, the square resistance firstly decreased and then increased. The main reason for this phenomenon was due to the insulation property of acrylic resin. An excessive amount of acrylic resin added led to an increase in the contact resistance of the silver nanowires network. Through the hundred grid method of adhesion testing, it was found that with the increase of the amount of acrylic resin added, the adhesion of the transparent conductive films of silver nanowires increased, and the size of the adhesion was independent of the depth of the wire rod. Through least squares data fitting, it was found that the transparent conductive film transmittance of silver nanowires was negatively correlated with the square of the square resistance. The transparent conductive films of silver nanowires prepared with wire rods of larger groove depths had a higher quality factor. When the amount of acrylic resin added was 4% and the groove depth of the wire rod was 20 μm, the transparent conductive films of silver nanowires had the highest quality factor with a transmittance of 84.3%, haze of 2.81%, and square resistance of 28 Ω/□. |
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