| 초록 |
Poly(lactic acid) can be derived from renewable resources, such as corn. PLA is transparent and crystalline polymer with relatively brittle properties, i.e. high strength and low elongation at break. It is, however, possible to overcome the stiff and hard polymers through combination with natural materials. In this study, PLA biocomposites were manufactured with different bleached red algae fiber(BRAF) loadings from 30wt% to 50wt% by injection molding and tensile and Impact properties were investigated by Universal Testing Machine and Izod Pendulum Impact Tester. The mechanical properties of BRAF/PLA biocomposites were compared to those of neat PLA. The tensile modulus of BRAF/PLA biocomposites improved 89% at 50wt% BRAF loadings than neat PLA. These results support that the BRAF can be used as an excellent reinforcement of biocomposites and the possible application field of BRAF/PLA biocomposites could be the structural materials or the automotive industry. |
