Effect of annealing on mechanical and morphological properties of Poly(L-lactic acid)/Hydroxyapatite composite as material for 3D printing of bone tissue growth stimulating implants

التفاصيل البيبلوغرافية
العنوان: Effect of annealing on mechanical and morphological properties of Poly(L-lactic acid)/Hydroxyapatite composite as material for 3D printing of bone tissue growth stimulating implants
المؤلفون: Dubinenko, G E, Zinoviev, A L, Bolbasov, E N, Novikov, V T, Tverdokhlebov, S I
المصدر: IOP Conference Series: Materials Science and Engineering; April 2019, Vol. 511 Issue: 1 p012008-012008, 1p
مستخلص: In this work, effect of additional annealing on mechanical and morphological properties of 3D-printed PLLA/HAp composite scaffolds of three compositions (12.5, 25, and 50 wt.% of HAp) was investigated. Morphology and Young's modulus of 3D-printed scaffolds were investigated by scanning electron microscopy and nanoindentation. It has been shown that additional annealing does not have an effect on the homogeneous distribution of HAp powder in the PLLA-matrix. Results of nanoindentation showed growth of Young's modulus after annealing. The maximum value of 9393 +- 709 MPa Young's modulus was reached for the annealed composite with 50 wt.% of HAp.
قاعدة البيانات: Supplemental Index