| 학회 |
한국고분자학회 |
| 학술대회 |
2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 |
29권 1호, p.291 |
| 발표분야 |
복합재료 |
| 제목 |
Interfacial Evaluation of E-Glass Fiber and Silica Nanotube/Ultraviolet Curable Vinylester Composites using Micromechanical Test and Acoustic Emission |
| 초록 |
Ultraviolet (UV) curing is basically composed of base polymer, non-solvent, diluent and photoinitiator. UV curing, i.e., the process of photoinitiated conversion of polymeric materials from a liquid to a solid is a popular alternative to conventional thermal curing. Their major advantages of UV curing process are high-speed process, low energy consumption. Interfacial properties of E-glass fiber/vinylester composites were investigated using double-matrix composites (DMC) test combined with nondestructive acoustic emission (AE). Mechanical properties of silica nanotube/vinylester composites were measured with their content. Optimum UV curing time was established by measuring mechanical properties and interfacial shear strength (IFSS). To improve IFSS, the surface of E-glass fiber was treated by amine and vinyl silane coupling agents. DMC specimen was composed of E-glass fiber embedded brittle vinylester inner matrix and ductile epoxy support matrix. The fiber fracture and inner and support matrix cracking signals were detected by AE and then they were separated by waveform and fast Fourier transform (FFT) analyses. Interfacial control due to UV radiation and their analysis is very important parameter. Total mechanical performance and IFSS should be optimized for UV curing composite systems. Acknowledgment: This work was financially supported from CAMP of the 21st C Frontier R&D program by MOST, through ERI, GNU. |
| 저자 |
정진규1, 최주형2, 김대식1, 박종만2, 이재락1
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| 소속 |
1경상대, 2공학(연) |
| 키워드 |
Ultraviolet curing; Interfacial shear strength; Acoustic emission
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| E-Mail |
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