Natural fibers or natural fibres (see spelling differences) are fibres that are produced by plants, animals, and geological processes They can be used as a component of composite materials, where the orientation of fibers impacts the properties Natural fibers can also be matted into sheets to make products such as paper,

A composite material is a material made from two or more constituent materials with significantly different physical or chemical properties that, when combined, produce a material with characteristics different from the individual components The individual components remain separate and distinct within the finished structure

This report deals with the application of natural fibre composites in the development of rural societies and arose from the overlap of strives of two organisations, which specialise in their own particular area Although many variants on these techniques exist, this overview gives a good indication of production possibilities.

Natural composites Wood (cellulose lignin) Bone (apatite collagen) Nacre (Mother of pearl) (Aragonite protein) Granite (quartz, feldspars) Of importance A nanocomposite is a two phase material where one of the phases has at least one dimension in Oxidizing atmosphere Fe present as Fe(III) Form clinker

However, within the composite you can easily tell the different materials apart as they do not dissolve or blend into each other Natural composites Natural composites exist in both animals and plants Wood is a composite it is made from long cellulose fibres (a polymer) held together by a much weaker substance called

Sep , Asbestos is the group of minerals that occur naturally in the environment as bundles of fibres These fibres are resistant to heat, fire and bad conductor of electricity Asbestos mineral are silicate compound, contain silicon and oxygen in their molecular structure Asbestos minerals are divided into two major.

During the last decade there has been a renewed interest in the natural fibre as a substitute for glass, motivated by potential advantages of weight saving, lower As far as composite applications are concerned, flax and hemp are two fibres that have replaced glass in a number of components, especially in the German

Various latices exist, both natural (natural rubber latex for instance) and synthetic (PVC Polyvinyl Chloride , PP Polypropylene ) Whereas a PVC resin results in a stiff construction, a rubber latex based composite is still flexible An interesting point regarding the availability is that in most countries with extensive fibre

Natural fibers offer both cost savings and a reduction in density when Research on natural fiber composites has existed since the early s but has not received much attention until late in the s Composites, primarily glass but including natural reinforced composites, are found in countless consumer products.

History of Composites The existence of composite is not new The word composite has become very popular in recent four five decades due to the use of modern composite materials in various applications The composites have existed from BC For example, one can see the article by Ashby [] The evolution of

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