| 초록 |
Electron beam crosslinked EVA/clay nanocomposites prepared by melt compounding has been developed. To improve the dispersion of clay in nanocompoistes, high intensity ultrasound is imposed during processing. The tensile strength increase continuously with increasing irradiation dose and elongation at break is decreased with radiation. Moreover, as dispersion of nanocomposites is enhanced, Young’s modulus, tensile strength and elongation at break also increased. Thermogravimetric analysis shows that thermal stability of EVA/clay nanocomposites is enhanced with irradiation dose and improvement of degree of clay dispersion. The improvement in the properties of nanocomposites is attributed to the enhanced dispersion of clay in exfoliated structure and the formation of radiation induced crosslinking. |
