TW202035650A - 一種製備不透明粘合劑之方法及其產物 - Google Patents

一種製備不透明粘合劑之方法及其產物 Download PDF

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TW202035650A
TW202035650A TW108109270A TW108109270A TW202035650A TW 202035650 A TW202035650 A TW 202035650A TW 108109270 A TW108109270 A TW 108109270A TW 108109270 A TW108109270 A TW 108109270A TW 202035650 A TW202035650 A TW 202035650A
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涂煜杰
莊勝鈞
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大陸商業成科技（成都）有限公司
大陸商業成光電（深圳）有限公司
英特盛科技股份有限公司
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Abstract

本發明關於一種製備不透明粘合劑的方法，包括將一二氧化鈦奈米顆粒或一量子點加入一粘合劑之基質中，其中該二氧化鈦奈米顆粒為球狀或桿狀。本發明另關於一種以本發明之方法所製備之不透明粘合劑。本發明之方法具有更好的熱穩定性和化學穩定性。

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一種製備不透明粘合劑之方法及其產物
本發明係關於一種粘合劑的領域，特別是關於製備不透明粘合劑用以觀察其尺寸之領域。
現今在學術或工業上對於奈米粒子的研究相當多。許多黏合劑的物化性質可以透過加入無機奈米粒子來調整。有文獻提出了一種利用溶膠凝膠技術（sol-gel process）製備具有高透明度及穩定性的二氧化矽/PMMA混成材料。另外也有文獻顯示，將二氧化矽奈米粒子和金剛砂微粒結合到UV固化的聚丙烯酸酯塗層中，可以改善塗層的耐刮擦性和耐磨性。表面官能化的氧化鋁奈米顆粒填充的聚合物奈米複合材料也能顯示出增強的機械性能。
顏料級形式的二氧化鈦利用了二氧化钛在需要白色不透明性和亮度的應用中極好的光散射性。
關於膠體半導體量子點的尺寸依賴性光學性質的研究在過去十年中受到越來越多的關注，這是因為膠體半導體量子點在光穩定的發光生物標籤和LED中的應用。膠體半導體量子點通常均勻地分散在透明薄膜或液體粘合劑中。
已知應變釋放（strain relief，SR）粘合劑可用於窄結構產品，如圖1所示。因此應變釋放黏合劑可滿足不透明高儲存模組的條件要求。
本發明提供一種製備彩色的複合黏著劑的方法及其產物，藉此，即可透過光學顯微鏡儀器（Optical Microscope，OM）觀察混合SR/奈米粒子複合粘合劑的尺寸和高度。本發明利用合成不同的具有不同光致發光的CdSe量子點以及不同的TiO2 ，然後將CdSe量子點或二氧化鈦奈米顆粒結合到粘合劑基質中以形成各種顏色複合粘合劑。
故本發明提供一種製備彩色的複合黏著劑的方法，包含將0.001~5 wt.% 的二氧化鈦（TiO2 ）或0.001~5 wt.%的CdSe量子點加入粘合劑基質中以製備出不同顏色的粘合劑。
本發明另提供一種以本發明所請之方法製備的複合粘合劑。
本發明揭露了在粘合劑中可良好分散的表面改性二氧化鈦奈米粒子。不同類型的表面改性二氧化鈦奈米粒子可摻入粘合劑基質中以形成混合複合粘合劑。混合複合粘合劑具有比純粘合劑系統更高的儲存模組。透過使用不同形式的二氧化鈦奈米粒子及透過改變二氧化鈦固體含量可以調節儲存模組。除了增強儲存模組外，本發明還將混合複合粘合劑的顏色從透明色調為淺白色。
此外，不同尺寸的三辛基氧化膦（trioctylphosphine oxide ，TOPO）改性CdSe量子點可以進一步摻入至粘合劑基質中以形成彩色複合粘合劑。因此，可透過OM觀察到彩色複合粘合劑的尺寸。
混合SR /奈米粒子複合粘合劑通常具有比SR /染料複合粘合劑更好的熱穩定性和化學穩定性。
以下通過實施例作進一步詳細描述，但本實施例並不用於限制本發明，凡是採用本發明的相似結構及其相似變化，均應列入本發明的保護範圍。二氧化鈦奈米顆粒
在一實施例中，透過溶膠凝膠技術合成了具有油酸劑的二氧化鈦奈米顆粒，包括球形TiO2 奈米顆粒和棒狀TiO2 奈米顆粒，然後將該等奈米顆粒融合進黏合劑基質以形成一種不透明的黏合劑組合物。
TiO2 的前驅物是異丙醇鈦（titanium isopropoxide），表面活性劑則是油酸。本發明使用不同量的三甲胺N-氧化物脫水物（trimethylamine N-oxide dehydrate ，TMAO）作為催化劑來合成球形TiO2 奈米顆粒（不含TMAO，如圖2（a）和圖2（b）所示）和桿狀TiO2 （含TMAO， 如圖3所示）。然後透過小分子（例如圖4中所示的N3染料和W4染料）去修飾合成的TiO2 奈米顆粒，以部分地除去絕緣表面配體油酸。將0.001~5 wt.% 的二氧化鈦（TiO2 ）加入粘合劑基質中以製備出不同顏色的粘合劑。
TiO2 的前驅物包含但不限於四異丙醇鈦（titanium tetrakisisopropoxide）、鈦酸丁酯（Tetra-n-butyl Titanate）、四氯化鈦（titanium chloride）、或四丁氧基鈦（titanium butoxide）。
在其他實施例中，可使用四氯化鈦碱中和水解法、硫酸鈦水解法、或高溫水解法(水熱合成法)製備二氧化鈦奈米顆粒。量子點
使用氧化鎘（CdO）、十四烷基膦酸（tetradecylphosphonic acid ，TDPA）和三辛基氧化膦（trioctylphosphine oxide ，TOPO）的混合物在氬氣中將其加熱至300℃，並將其轉化為均相溶液，合成CdSe奈米晶體。引入硒和三辛基膦（TOP）溶液後，反應幾分鐘，冷卻至室溫。可以透過控制反應時間來調整CdSe的合成尺寸。將0.001~5 wt.%的CdSe量子點加入粘合劑基質中以製備出不同顏色的粘合劑。
較佳地，本發明分別使用濕化學方法合成TiO2 奈米顆粒和CdSe奈米顆粒（如圖5所示）。
在一實施例中，所使用的粘合劑基質材料為丙烯酸酯類型的透明黏合劑，其成分如下表1所示： 表1、丙烯酸酯黏合劑成分
Figure 02_image001
1:彈性印刷電路 2:金屬框 3:印刷電路板 4:混合SR/奈米粒子複合粘合劑 X:油酸 Y:衍生顏料
圖1為印刷電路板的間隙填充區中的混合SR /奈米粒子複合粘合劑之橫切面分配圖； 圖2(a)為TiO2 奈米顆粒之TEM圖，圖2(b)為TiO2 奈米顆粒之高解析度TEM圖； 圖3為桿狀TiO2 奈米顆粒之TEM圖； 圖4(a)為N3染料化學結構圖，圖4(b)為W4染料化學結構圖； 圖5為各種TiO2 顆粒之可能結構，(a)為球狀TiO2 顆粒，(b)為桿狀TiO2 顆粒，(c)為另一種球狀TiO2 顆粒，其中X為油酸，Y為N3或W4衍生顏料。
無
X:油酸
Y:衍生顏料

Claims (7)

  1. 一種製備不透明混合複合粘合劑之方法，包含將二氧化鈦奈米顆粒或量子點奈米顆粒加入一粘合劑基質中。
  2. 如申請專利範圍第1項之方法，其中該二氧化鈦奈米顆粒或量子點奈米顆粒之重量百分比為0.001~5 wt.%。
  3. 如申請專利範圍第1項之方法，其中該二氧化鈦奈米顆粒為桿狀或球狀。
  4. 如申請專利範圍第1項之方法，其中該量子點為硒化鎘量子點。
  5. 如申請專利範圍第1項之方法，其中該二氧化鈦奈米顆粒係以溶膠凝膠製備。
  6. 如申請專利範圍第1項之方法，其中該二氧化鈦奈米顆粒表面具有一衍生顏料之修飾。
  7. 一種以申請專利範圍第1項所述之方法所製備之混合複合粘合劑。
TW108109270A 2019-03-15 2019-03-19 一種製備不透明粘合劑之方法及其產物 TW202035650A (zh)

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