Ground Hemp Fibers as Filler/Reinforcement for Thermoplastic Biocomposites

Table 1

The major peaks observed in the FTIR spectrums and their possible source [18–21].

Wave number (cm^−1)	Vibration	Sources
670	C–OH out-of-plane bending	Cellulose
896	COC, CCO, and CCH deformation and stretching	Cellulose
1040	C–C, C–OH, C–H ring, and side group vibrations	Cellulose and hemicellulose
1155	C–O–C asymmetrical stretching	Cellulose and hemicellulose
1246	C–O aryl group	Lignin
1317	CH2 rocking vibration	Cellulose
1373	In-the-plane CH bending	Cellulose and hemicellulose
1423	HCH and OCH in-plane bending vibration	Pectin, lignin, hemicelluloses, and calcium pectates
1505	C=C aromatic symmetrical stretching	Lignin
1640	OH bending of absorbed water	Water
1732	C=O stretching; Esterified and carboxylic groups	Xylans (hemicelluloses); Pectin
2850	CH2 symmetrical stretching	Wax
2920	C–H symmetrical stretching	Cellulose
3370	O–H linked shearing	Polysaccharides