Biodegradable fibres

Fibrous fillers for biomedical PLA-based FRPs include carbon and inorganic fibres [406], PLLA (i.e. self-reinforcement) [407,408], poly(p-dioxane) fibre [409], chitin [410], biodegradable fibre (e.g. bioactive glass, chitosan fibre, polyester amides) [411], hydroxyapatite fibre [412], hydroxyapatite whiskers [413], halloysite (Al2Si205(0H)4) nanotubes [414] and the fibre from different tissue types of Picea sitchensis [415],... 

Fambii, L., Pegoretti, A., Fenner, R. et al. (1997) Biodegradable fibres of poly(L-lactic acid) produced by melt-spinning. Polymer, 38, 79-85. 

The second classification relates to the extent of fibre biodegradability. Biodegradable fibres are those which are absorbed by the body within 2-3 months after implantation and they include cotton, viscose rayon, polyamide, polyurethane, collagen, and alginate. Fibres that are slowly absorbed within the body and take more... 

Fambri, L., Pegoretti, A., Mazzurana, M., and Miliagressi, C. (1994) Biodegradable fibres part 1. Poly-l-lactic acid fibres produced by solution spinning./ourrea/ of Materials Science Materials in Medicine, 5, 679-683. 

L. Fambri, A. Pegoretti, C. Migliaarsesi, Biodegradable fibres. Part I. Poly-L-lactic acid fibres produced by solution spinning. J. Mater. Sci. Mater. Med 1994, 5, 679-683. 

In any case, biodegradable fibres based on polyesters while investigated and developed by researchers, should be considered seriously by industry and consumers. A knowledge concerning the properties and new techniques of production of the fibres should bring new ideas for applications of these materials followed by development of production technology. 

This book focuses on polymers and their fibres defined and detailed in Section 1.2. However, new biodegradable polymers are appearing frequently due to the demand and interest for this technology. Although these polymers have no specific fibre application at press they should be examined in future research and development to afford new biodegradable fibre opportunities and applications. ... 

Other comments Current techniques are associated with processing undesirabie residues such as soivents, sait particies Equipment cost is high. Controi over porosity is aiways questionabie Shapes are limited Limited to tubular or uniform cross-sectional shapes Limited by the low bending properties of current biodegradable fibres... 

Obviously, the option of producing biodegradable fibres with excellent mechanical properties will broaden the possible applications for PHAs, although the possibility of a decrease in biodegradability arises as a result of substantial changes in morphology. 

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