Jealous Sister In Law

Natural fibers and natural fibers minded engineer

Natural fibers are returning, then, but there is a problem: a
is the mentality of our engineers, who are used to design materials with
non-natural properties, and then (hopefully) consistent, uniform, and
with simple geometries (straight, because we so desired).
Even when using natural materials such as wood, it is formed in
axles, beams and so on.
In fact, the simple geometry does not exist in nature. Nature uses
complex shapes, especially spirals or even more complex (the double helix of DNA is a good example).
Of course, we can pretend nothing happened and design materials, such as fiber-resin composites,
as we have always done: for example here is an example of a next test unidirectional (fiber in the same direction) kenaf fiber , a type of hibiscus, and epoxy resin. It looks very much like a man-made material such as fiberglass, ma in realtà, pensando alla struttura cellulare delle fibre vegetali, la forzatura è evidente.

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Parlando di materiali naturali, le fibre estratte dalle piante hanno proprietà meccaniche molto interessanti, specie alcune, come le fibre di Lino della Nuova Zelanda ( Phormium Tenax ) che vedete in fotografia, inoltre sono biodegradabili.
Purtroppo, non si usano ancora molto nei materiali, nonostante ci sia molta ricerca, specie negli ultimi anni. Cominciamo, tanto per diradare un po' la nebbia intorno alle fibre vegetali di interesse per i nuovi materiali, a nominarne qualcuna: juta ( Corchorus Capsularis), lino ( Linum usitatissimum), hemp (Cannabis Sativa ), sisal ( sisal), coconut (Cocos nucifera ) ... and we could continue.
The fibers are extracted from the stem of the plant, as in jute, the leaves, as nell'agave, from the fruit, such as coconut, or from seed, as in the Betel palm (Areca catechu ) (and in cotton, however, ).
to thin a little more 'fog, FAO launched in 2009 the International Year of Natural Fibres. E 'therefore be appropriate to begin preparing.

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Welcome!

Hello!
This blog deals with biomimetics, especially in relation to materials. What is
Biomimetic? E 'inspired by the ideas from engineering to nature, which has led to some successful applications, such as the Velcro closure system inspired by the "hooks" on the flower of burdock (Arctium lappa ), and the Lotusan film, for self-cleaning surfaces, inspired by lotus leaves (Nelumbo nucifera ) and their way of getting rid of rainwater during the monsoons.
On the Internet there is already so much on the Biomimetic , but mostly in English.
Speaking of Biomimetics, it is inevitable to talk about materials things much easier, nature uses virtually the only two materials, cellulose and protein, but it gets the effects drug
as you can see by the geometry of the fiber of celery on the right with its elongated cells (the heart of the fiber is made from a type of natural fabric of support that is called collenchyma). It is not just a matter of geometric charm, could be better and more: namely, that the creations of nature work.

Did I forgot to introduce myself. Well, for more information about me, you can go to my homepage (in English) . The substance is that I am responsible for research on new materials for many years.
This would be a popular blog with short post and hopefully create a little 'curiosity about the question of bio-inspiration.