| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Synthesis and characterization of PU-Si nanohybrid:Influence of silica on properties of PU |
| 초록 |
UV-curable polyurethane acrylate-silica nanohybrids have been prepared by incorporating 1% of silica precursors into polyurethane acrylate (PU) polymer matrix using a sol-gel technique and were characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The thermal properties were studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). TGA test revealed that the thermal decomposition temperature (Td50%) of the nanohybrid increased significantly, being 19 °C higher than that of pure PU while DSC measurements indicated that the introduction of 1 mass% of TEOS increased the glass transition temperature from 94 to 103 °C. Further the water absorption capacity of the PU was significantly decreased by the incorporation of TEOS. |
| 저자 |
장의성, 최원진, 이민주, 유창지, 조성민, 한학수
|
| 소속 |
연세대 |
| 키워드 |
Sol-gel method; Hybrid coating; Polyurethane; UV curable coating
|
| E-Mail |
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