Describe different natural fibers chemical composition

 

Chemical composition of a fiber

The chemical composition of a fiber refers to the amount of material used to make a fiber. Natural composite materials are made from natural fibers and natural resins. Various natural fibers such as jute, flax, coir, cotton, and other natural blended materials are used in the industry. The load-bearing member in the combination of fibers. The main constituents of fibers are cellulose, hemicellulose, lignin, pectin, and wax. The synthesis of fibers depends on the geographical location where the plants grow. The strange thing is that all the fibers have the same component but different combinations, which makes the fibers behave differently. In this work, Pearson rank correlation coefficients are found in the synthesis and properties of fibers, and equations related to the regression line are obtained.

Describe different natural fiber's chemical composition

Various natural fibers such as jute, flax, coir, cotton, and other natural fibers chemical composition is below-

i. Chemical composition of cotton fiber

Cellulose – 94 %

Protein- 1.3 %

Pectin - 1.2 %

Ash - 1.5 %

Fat/wax - 0.6 %

Sugar - 0.8 %

Others - 0.9 %

ii. Chemical composition of jute fiber

Cellulose - 39.54 %

Holocellulose - 65.6%

Lignin - 29.86%

iii. Chemical composition of hemp fiber

Cellulose - 77.77 %

Hemicellulose – 10 %

Lignin - 6.8 %

Pectin - 2.9 %

Fat & wax - 10.90 %

Water soluble - 1.73 %

iv. Chemical composition of wool fiber

Keratin – 33 %

Dirt – 26 %

Suint – 28 %

Fat – 12 %

Mineral matter – 1 %

v. Chemical composition of flax fiber

Cellulose - 92 %

Hemicellulose - 2 %

Lignin - 4 %

Others - 2 %

vi. Chemical composition of silk fiber

Fibroin - 75 %

Ash of silk fibroin - 0.5 %

Sericin - 22.5 %

Fat & Wax - 1.5 %

Mineral Salt - 0.5 %

vii. Chemical composition of sisal fiber

Cellulose - (43-88) %

Hemicellulose - (10-15) %

Lignin - (4-20) %

Pectin - (0.8-10) %

Water-soluble - (1-4) %

Fat and wax - (0.15-2) %

Moisture - (10-22) %

viii. Chemical composition of ramie fiber

Cellulose - 75 %

Holocellulose – 16 %

Lignin – 0.7 %

Moisture – 8.3 %

ix. Chemical composition of kenaf fiber

Cellulose - 70 %

Hemicellulose – 8 %

Lignin – 12 %

Pectin – 10 %

x. Chemical composition of coir fiber

Cellulose - 43.44 %

Hemicellulose - 0.25 %

Lignin - 45.84 %

Pectin and related compounds - 3.00 %

Ash - 2.22 %

Water-soluble - 5.25 %