| 第 52 卷第 5 期 |  | Vol. 52 No. 5 | | 2022 年 10 月 | Oct 2022 |
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所屬欄目：功能材料
聚醚型聚氨酯樹(shù)脂制備納米銀的研究 |
| 鄒麗紅
（中海興發(fā)（廣東）安全技術(shù)服務(wù)有限公司，廣東 廣州 510620） |
| 摘 要：以硝酸銀和聚醚型聚氨酯樹(shù)脂制備一種能用于配置網(wǎng)印沉銅催化劑油墨的銀樹(shù)脂。實(shí)驗通過(guò)開(kāi)路電位-時(shí)間法討論不同的硝酸銀用量、銀樹(shù)脂層厚度、銀樹(shù)脂的干燥溫度和化學(xué)鍍銅溫度對銀樹(shù)脂催化化學(xué)鍍銅活性的影響。結果表明：當硝酸銀濃度為0.09、烘烤溫度為90 ℃、化學(xué)鍍溫度為40 ℃時(shí)，制備的銀樹(shù)脂催化活性較好。通過(guò)XRD顯示銀樹(shù)脂催化化學(xué)鍍銅后化學(xué)鍍銅層為面心立方結構，鍍層中絕大部分為Cu和少量Ag、Cu2O和CuO夾雜量很小。在紅外光譜和紫外光譜表征下，銀樹(shù)脂中銀離子與聚氨酯樹(shù)脂成鍵的形式是Ag+與-NHCOO-基團中N、O形成穩定的配位鍵。通過(guò)掃描電鏡SEM和能譜分析EDS觀(guān)察，硝酸銀在銀樹(shù)脂表面較密且均勻地分布，其粒徑極細小，其形狀各異，有塊狀、長(cháng)條狀和點(diǎn)狀。 |
| 關(guān)鍵詞：聚醚型聚氨酯樹(shù)脂；化學(xué)鍍銅；納米銀；活化 |
| 中圖分類(lèi)號：TQ323.8 文獻標識碼：A 文章編號：1009-9212（2022）05-0075-06 |
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| Preparation of Nano-silver from Polyether Polyurethane Resin |
| ZOU Li-hong
(Zhonghai Xingfa (Guangdong) Safety Technology Service Co., Ltd., Guangzhou 510620, China) |
| Abstract：The silver resin was prepared from silver nitrate and polyester polyurethane resin, and used in copper catalyst configuration screen printing ink. The effects on silver resin catalyst activity of chemical copper plating from different amount of silver nitrate, silver resin layer thickness, silver resin drying temperature, and copper plating temperature were discussed. The results showed that the prepared silver resin had the best catalytic activity when the concentration of silver nitrate was 0.09, the baking temperature was 90 ℃, and the chemical plating temperature was 40 ℃. The XRD data indicated that structure of copper plating layer was face-centered cubic after reacting by silver resin catalytic copper plating. Most of the coating were Cu but small amount of Ag and very small amount of Cu2O and CuO. The characterization from infrared and ultraviolet spectra indicated that the form of bond of Ag+ and polyurethane resin in silver resin was that Ag+ and N,O in -NHCOO- group formed stable coordination bonds. Silver nitrate in silver resin evenly and uniformly distributed dense observed by scanning electron microscopy SEM and EDS, and had very small particle size, different shapes of massive, strip and dot. |
| Key words：polyether polyurethane resin; copper plating; nano-silver; activation |
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作者簡(jiǎn)介：鄒麗紅（1986—），女，廣東惠州人，安全評價(jià)師，研究方向：安全評價(jià)（E-mail：3232373523@qq.com）。
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收稿日期：2022-05-09
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