| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Improvement of physical properties of silane-modified waterborne polyurethane using controlled silica content |
| 초록 |
The waterborne polyurethane modified with silane coupling agent (silane-modified WPU) was synthesized using polyester diol, isophorone diisocyanate, dimethylolpropionic acid, and 3-aminopropyl trimethoxysilane. Silane-modified WPU/silica composites were prepared through a sol-gel process according to the silica content. The Si-O-Si bonding structure of silane-modified WPU/silica composites was confirmed by FT-IR. The effects of silica content on tensile properties and pencil hardness of silane-modified WPU/silica composites were investigated. Thermal properties were measured using thermogravimetric analysis and differential scanning calorimetry. As a result, as the silica content increased, the tensile strength, pencil hardness and heat resistance of the composites increased due to the improvement of the crosslinking density. |
| 저자 |
문석규1, 권용록1, 김정수1, 박한수2, 김동현1
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| 소속 |
1한국생산기술(연), 2중앙대 |
| 키워드 |
Waterborne polyurethane; 3-aminopropyl trimethoxysilane; Silica; Sol-gel process
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| E-Mail |
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