2023 Fiscal Year Final Research Report
High performance conductive adhesive with High-performance conductive adhesive by cellulose nanofibers and ionized metal deposition
| Project/Area Number |
21K04665
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 26030:Composite materials and interfaces-related
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2021-04-01 – 2024-03-31
|
| Keywords | 導電性接着剤 / セルロースナノファイバー / 柔軟性 |
|---|
| Outline of Final Research Achievements |
Several kinds of polyurethane-modified epoxy resins prepared from each polyol compounds by synthesizing polyurethane in epoxy resin showed better performance in both tensile shear strength and elongation than original epoxy resin. The increase in electrical resistance of conductive adhesive with the polyurethane-modified epoxy binder resin under bending load was suppressed compared to the case where epoxy resin was used as a binder. Furthermore, it was shown that the addition of cellulose nanofibers enhanced the suppression of the increase in resistivity. The dispersion state of cellulose nanofibers in the resin was visualized by deposition of ionized metal, and it was found that the dispersion state varied depending on the mixing method.
|
| Free Research Field |
電子デバイス実装
|
| Academic Significance and Societal Importance of the Research Achievements |
セルロースナノファイバーを配合したポリウレタン変性エポキシ樹脂によって柔軟かつ抵抗の下がらない導電性接着剤を作製することで，大きく変形するような基板やデバイスへの電子部品の実装が可能となる．接合部が変形することで応力が緩和し，部品や接合部そのものへの負荷を低減して接合部の寿命を延ばすことができる．
|
