| 초록 |
Ultra-high molecular weight polypropylene composites series with various compositions were manufactured using octadecyl isocyanate(ODI) and vinyl ester(VE). Modified-nanocellulose using ODI and VE showed high hydrophobicity when dispersibility was evaluated, and the presence or absence of change in -OH peak was analyzed using Fourier-transform infrared spectroscopy(FT-IR). The particle size of nanocellulose was evaluated by dynamic light scattering(DLS) and Scanning electron microscope(SEM). The surface-modified nano-cellulose was divided by content and composited, and the composite material was used to prepare a specimen according to ASTM D638 and to analyze it using a universal testing machine(UTM). The processing conditions for making the specimen were conducted using an extruder having a twin screw and proceeded at a temperature between 180 to 230 ℃. In the case of the composite to which nanocellulose was added, it was confirmed that the increase in elongation was higher than that of the composite without the addition of nanocellulose. |
