By L. Ambrosio
Biocomposites are customary within the scientific to fix bone, cartilage, ligaments, and tendons. This ebook offers an intensive overview of the present state of affairs, fresh development, and destiny traits in composites for biomedical purposes. It concentrates at the examine and functions of this more and more well known relatives of fabrics. The booklet starts with an creation to the cloth, concentrating on the houses, fabrication and layout of composites. It then discusses specific purposes and biocompatibility of biocomposites. the ultimate crew of chapters analyses the mechanical habit and failure of biocomposites and their destiny power.
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Additional info for Biomedical Composites (Woodhead Publishing in Materials)
Key words: biocomposites, fabrication technology, scaffolds, tissue engineering. 1 Introduction Biocomposite structures are either parts made of biomaterial compounds with a filler element dispersed into the matrix material, or a construct with alternating sections of different materials (Fig. 1). For convenience, we will refer to the former as compounds and the latter as multi-material composites in this chapter. However, similar biomaterial processing technology applies to both categories. Production techniques can roughly be divided according to the form of the base material used.
The fibre component is placed dry into the mould and the vacuum is applied before the resin is added. Once the complete vacuum is achieved, it will apply a suction force on the resin material and draw it into the laminate via carefully placed tubing (van Rijswijk et al. 2009). An improvement of this method is to use an additional vacuum bag to suck the excess resin out of the composite matrix. In this way, the fibre-toresin ratio will be improved and will result in a stronger final product. This will also result in a less amount of wasted resin (Thagard et al.
30 Biomedical composites When working with (semi)crystalline thermoplastic resins it has to be considered that the cooling rate from the consolidating temperature is a critical parameter of the production process. The cooling rate has to be tailored in such a way that an acceptable degree of crystallinity is obtained and microcracking is avoided (Fernandez et al. 2003). Processing by autoclave is far more costly than standard furnace heating and is therefore generally used only when isostatic pressure must be applied to a workpiece of comparatively complex shape.