| 초록 |
Polylactic acid (PLA) is an eco-friendly resin made from natural resources such as corn and is well known to be a biodegradable and recyclable. However, it has drawbacks such as low impact strength, and low heat deflection temperature. In this study, polyamide 11 (PA11) which has high performance was blended with PLA in order to overcome those low properties. At this point, a compatibilizer for improving compatibility with PA11 was required, and MA-g-PLA was prepared by graft polymerization with maleic anhydride using a radical initiator. H-NMR (H-Nuclear Magnetic Resonance) analysis was performed to determine whether the prepared compatibilizer was grafted. The molecular weight of grafted polymer was measured by GPC (Gel Permeation Chromatography) and the graft yield was analyzed using a back titration method. In addition, UTM (Universal Testing Machine) and IZOD impact strength tester were used to measure the mechanical properties. |
