Effects of silica fibers on the mechanical and biological properties of Poly (lactic acid)

Poly(Lactic acid) (PLA);Composites;Fiber reinforced polymer;Solvent casting;Extrusion;Injection molding;Mechanical properties;Cell viabilities;620.1

공과대학 재료공학부 ;

University:서울대학교 대학원

关键词: Poly(Lactic acid) (PLA);    Composites;    Fiber reinforced polymer;    Solvent casting;    Extrusion;    Injection molding;    Mechanical properties;    Cell viabilities;    620.1;   

Others  :  http://s-space.snu.ac.kr/bitstream/10371/141476/1/000000149490.pdf

美国|英语

来源: Seoul National University Open Repository

【 摘 要 】

silane treatment and LA-grafting. With the addition of silica fibers in PLA matrix, elastic modulus significantly increased. Moreover, after surface treatment, elastic modulus further increased compared to PLA/untreated silica fibers composites and also tensile strength increased. Cell viability of the specimens was evaluated with MC3T3-E1 cells. Cell viability increased with the addition of silica fibers. The cell viability of PLA/surface treated silica fibers composites also maintained a value comparable to that of the untreated fiber composites. This study proved that silica fibers can effectively increase the mechanical properties and cell viability of PLA. Also, this study demonstrated that silane treatment and LA-grafting were effective methods for further enhancement of mechanical properties of PLA while cell viability was maintained.