| 학회 | 한국화학공학회 |
| 학술대회 | 2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 | 27권 2호, p.1387 |
| 발표분야 | 고분자 |
| 제목 | Reinforcement of mechanical strength of hydrophobilc silica aerogel by cross-linking with polyurethane |
| 초록 | Silica aerogel has excellent thermal conductivity as insulation material. Because it attributes superb insulation to high porosity (＞95 %), large surface area (500-2000 m2/g) by meso pores of silica networks. However, there is a limitation of uses for their brittle nature. On this research, the mechanical strength was improved by adopting polyurethane prepolymer end-capped with silane coupling agent. The cross-linking of polymer chains reinforced the interaction between the surface of silica secondary particles. This synthesis was followed by APD (ambient pressure drying). The characterization focus on the mechanical properties and thermal conductivity for the advanced inorganic/organic hybrid composite. Acknowledgments This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government(MSIT) (No. 2020R1A5A1019131) and a grant (10080492) from Korea Evaluation Institute of Industrial Technology under MOTIE, Republic of Korea. |
| 저자 | 최진규, 김병석, 박예서, 심상은 |
| 소속 | 인하대 |
| 키워드 | 첨단고분자 |
| 원문파일 | 초록 보기 |
