| 초록 |
Halloysite nanotube(HNT), two-layered aluminosilicate, chemically similar to kaolin, having hollow tubular structure in the submicrometer range, We prepared HNT reinforced poly(ε-caprolactone)(PCL) composite fibers by electrospinning. The concentration of HNT in PCL was varied 3~10 wt%. Morphology, thermomechanical properties and biodegradation behavior of the e-spun fiber were investigated by means of SEM, DSC, DMA and hydrolytic degradation test. The dispersion of HNT in PCL fibers was determined by TEM. The SEM images showed that the mean diameter of the fiber was decreased with increasing of HNT content. DSC results indicated that Tm, and degree of cristallinity of PCL decreased and Tc increased with increasing HNT content. DMA results showed that HNT enhanced the mechanical properties of PCL fiber. Hydrolytic degradation test revealed that PCL/HNT hybrids degrade faster than neat PCL. |
