Wednesday, February 22, 2012

Natural fibers

Natural fibers cover those produced by plants, animals, and geological processes. They are biodegradable over time. They can be classified according to their origin:

Vegetable fibers are about based on arrange of cellulose, generally with lignin: examples cover cotton, hemp, jute, flax, ramie, and sisal. Plant fibers are active in the accomplish of cardboard and bolt (cloth), and comestible cilia is an important basic of animal nutrition.

Copse fiber, acclaimed from vegetable fiber, is from timberline sources. Forms cover groundwood, thermomechanical lurid (TMP) and albino or agrarian kraft or sulfite pulps. Kraft and sulfite, aswell alleged sulphite, accredit to the blazon of pulping action acclimated to abolish the lignin bonding the aboriginal copse structure, appropriately absolution the fibers for use in cardboard and engineered copse articles such as fiberboard.

Animal fibers abide abundantly of accurate proteins. Instances are spider silk, sinew, catgut, absolute and hair such as cashmere, mohair and angora, fur such as sheepskin, rabbit, mink, fox, beaver, etc.

Mineral fibers cover the asbestos group. Asbestos is the alone by itself occurring continued mineral fiber. Six minerals accept been classified as "asbestos" including chrysotile of the convolute chic and those acceptance to the amphibole class: amosite, crocidolite, tremolite, anthophyllite and actinolite. Short, fiber-like minerals cover wollastonite and attapulgite.


No comments:

Post a Comment