2021 Fiscal Year Final Research Report
Deterioration and enhancement mechanism of interface between inorganic and organic materials for adhering construction structure
| Project/Area Number |
19K04704
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 23010:Building structures and materials-related
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
萩原 英昭 国立研究開発法人産業技術総合研究所, 材料・化学領域, 研究グループ長 (40357760)
佐藤 浩昭 国立研究開発法人産業技術総合研究所, 材料・化学領域, 副研究部門長 (70357143)
|
|---|
| Project Period (FY) |
2019-04-01 – 2022-03-31
|
| Keywords | 無機ー有機界面 / 建設系高分子 / 促進劣化試験 |
|---|
| Outline of Final Research Achievements |
In construction, combination of organic adhesives and inorganic substrates are used in a variety of situations, from new construction to renovation. They are expected to have high adhesive strength and can be easily and quickly installed. But the mechanisms of adhesion and deterioration have not been sufficiently discussed. In this study, to evaluate the interfaces of adhesives and inorganic substrates, we applied the methods used in the field of polymer physics to measure the type and density of chemical bonds and the pore structure to the interfaces of building materials.
Samples assuming the interface between inorganic substrates and organic adhesives: composite consisting of powdery inorganic materials and organic adhesives were made and sized to the free films. After accelerated weathering test, we observed reactions between inorganic substrates and organic adhesives through results by chemical analysis discuss the mechanism of deterioration in detail.
|
| Free Research Field |
建築材料
|
| Academic Significance and Societal Importance of the Research Achievements |
建築部材の無機－有機界面の接着工法は，建築物の「高耐久化」や「施工の省力化」に大きく寄与している。しかし、接着機構や劣化機構の議論が十分とはいえず、耐久性低下に結びつく報告もなされている．本研究では、基材となる無機材料を粉末化した無機粉末と、有機系接着剤を混合したフィルムを作製し、界面部分を多く含んだサンプル用いて界面部分の変状を評価する手法を考案した。これによって、長期耐久性が求められる建設分野の有機ー無機接着界面の劣化をその使用材料によらず作成することができるようになったため、今後、この試験方法を通じて、事故解明、材料開発などを有効に進めることができるようになったと考えられる。
|
