1. General Composition
Wood is construct primarily out the subsequent to compounds (in % teetotal weight):
cellulose 40-50%
lignin: 16-25% in hardwood – 23-33% in softwood
hemi-cellulose: 20-30% in hardwood – 15-20% in hardwood
new compounds (water, resins,…) 5-30%
minerals 0,1-3%
The actual structure of wood is formed by the fiberlike structure of cellulose (and hemi-cellulose). Lignin forms the binding agent along as well as these fiberlike structures.
2. Cellulose
Cellulose is one of the most abundant organic compounds in tab to earth. Not unaided woody nature once trees are construct from it but as well as all accessory birds. Cotton fibres are made of cellulose, wood consists for more or less 50% out of cellulose. One cellulose molecule is a chain of thousands of glucose molecules. In it’s firm form it is a white fibre. Cellulose for paper production is normally harvested from wood but some birds are a pleasurable source as quickly. Cellulose is with used in the chemical industry as a basic material for the production of synthetic products along along moreover tissues, coatings, explosives,… Cellulose is without a doubt one of the most important and versatile products for the economy!
3. Lignine
Lignine is an organic polymer, typically found in wood. Softwood contains more lignine as hardwood. It is produce from giant, 3-dimensional molecules of a profound composition. It is a dark merged that is a waste product from the paper industry. 4. Hemi-cellulose Hemi-cellulose is closely associated to cellulose. They are both structures fabricate from glucose. But hemi-cellulose contains after that auxiliary types of sugar molecules in its structures. The fibers are with shorter furthermore those of cellulose, on your own a few hundreds of sugar molecules. Hard wood contains more hemi-cellulose also softwood.
For more info Cellulose ether.
5. accessory substances and minerals
There are tallying organics compounds in wood that don’t have constructive properties. But they contribute to color, smell, strength and adding happening. Oils and fatty molecules, wax, starch,… are some examples. Besides these organic substances, wood contains along with anorganic minerals also calcium, natrium and magnesium in the form of phosphates, silicates, sulphates,…