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

G. E. Dubinenko, A. L. Zinoviev, E. N. Bolbasov, V. T. Novikov, S. I. Tverdokhlebov

Результат исследований: Материалы для журнала

Аннотация

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.

Язык оригиналаАнглийский
Номер статьи12008
ЖурналIOP Conference Series: Materials Science and Engineering
Том511
Номер выпуска1
DOI
СостояниеОпубликовано - 24 апр 2019
СобытиеInternational Scientific and Technical Youth Conference on Perspective Materials of Constructional and Medical Purpose 2018, PMCP 2018 - Tomsk, Российская Федерация
Продолжительность: 26 ноя 201830 ноя 2018

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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