지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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The purpose of this study was to evaluate the dispersion degree of particles using a nanoindentation test for titanium oxide nanoparticles/epoxy resin nanocomposites. Thus, the effects of the particle size and weight fraction, dispersion agent, and position of the sample on the modulus and degree of particle dispersion in the nanocomposites were investigated. As a result, the dispersion degree of large particles was found to be better than that of smaller particles in composites. It could be found that the aggregation or agglomeration of small particles with large surface energy occurred more easily in nanocomposites because of the large specific surface area. The moduli of the upper side of the film-shaped sample obtained from a nanoindentation test were low scattering, while the values for the bottom side were high scattering. Thus, the dispersion situation of the nanoparticles on the upper side of film-shaped samples could be considered to be better than that for the bottom side. This could be concluded due to the non-uniform nanoparticle dispersion in the same sample. The modulus obtained from nanoindentation test increased slightly with the content of nanoparticles and increased with the indented depth for the same sample. The latter is presumably due to the increase in the accumulated particles facing the indenter with the indented depth. The nanoindentation test was found to be a useful method to evaluate the dispersion status of nanoparticles in nanocomposites.
목차
ABSTRACT
1. Introduction
2. Experimental
3. Results and Discussions
4. Conclusions
References
참고문헌 (13)
참고문헌 신청
1. [학술대회논문] - Ash, B.J / 2001 / Investigation into the Thermal and Mechanical Beha- vior of PMMA / Alumina Nanocomposites-Materials Research Society Symposium Proceedings 661 : KK2.10.1 ~ KK2.10.6
2. [학술지(정기간행물)] - Ash. B.J / 2004 / Mechanical Behavior of Alumina/Poly (methyl methacrylate) Nanocomposites / Macromolecules 37 : 1358 ~ 1369
3. [학술대회논문] - Becker, C / 1996 / Tailoring of Thermomech- Anical Properties of Thermoplastic Nanocomposite by Surface Modification of Nanoscale Silica Particles / Materials Research Society Symposium Proceedings 435 : 237 ~ 242
4. [학술지(정기간행물)] - Chan, C.M / 2002 / Polypropylene /Calcium Carbonate Nanocomposites / Polymer 43 (10) : 2981 ~ 2992
5. [학술지(정기간행물)] - Gersappe, D / 2002 / Molecular Mechanisms of Failure in Polymer Nanocomposites / Physics Review. Letters 89
2. [학술지(정기간행물)] - Ash. B.J / 2004 / Mechanical Behavior of Alumina/Poly (methyl methacrylate) Nanocomposites / Macromolecules 37 : 1358 ~ 1369
3. [학술대회논문] - Becker, C / 1996 / Tailoring of Thermomech- Anical Properties of Thermoplastic Nanocomposite by Surface Modification of Nanoscale Silica Particles / Materials Research Society Symposium Proceedings 435 : 237 ~ 242
4. [학술지(정기간행물)] - Chan, C.M / 2002 / Polypropylene /Calcium Carbonate Nanocomposites / Polymer 43 (10) : 2981 ~ 2992
5. [학술지(정기간행물)] - Gersappe, D / 2002 / Molecular Mechanisms of Failure in Polymer Nanocomposites / Physics Review. Letters 89
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UCI(KEPA) : I410-ECN-0101-2015-550-002606099