| 초록 |
Carbon nanotube(CNT) which have excellent thermal, mechanical, electrical properties can be used for make conductivity in polymer. In this work, multi-wall CNT(MWNT) was functionalized by grafting various isocyanate to form a PU/MWNTs composite. These functionalized CNT was crosslinked with polyethylenegycol(PEG) having a various molecular weight. The effect of PU segment dependant change on the electronic conductivity for PU/MWNTs polymer was investigated by changing hard segment and soft segment in PU structure. The dispersity of CNT in the PU matrix was correlated by its electro-conductivities and proper percolation threshold. |
