In vitro monitoring of surface mechanical properties of poly(L-lactic acid) using microhardness
β Scribed by C. Saiz-Arroyo; Y. Wang; M. A. Rodriguez-Perez; N. M. Alves; J. F. Mano
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 273 KB
- Volume
- 105
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Poly(Lβlactic acid) (PLLA) has been used for fracture fixation devices, but its use is limited because of its poor biocompatibility and mechanical properties. The effects of extrusion, incorporation of hydroxyapatite (HA) and selfβreinforced composites (SRCs) on the resultant mechanical
The zone-drawing (ZD) method was applied three times to the melt-spun poly(L-lactic acid) (PLLA) fibers of low molecular weight (M v Ο 13,100) at different temperatures under various tensions. The mechanical properties and superstructure of the ZD fibers were investigated. The resulting ZD-3 fiber h