Impact of Leather on the Fire Resistance of Leather-Wood Fibreboard: FT-IR Spectroscopy and Pyrolysis-GC-MS Investigation

Table 1

Pyrolysis-GC-MS analysis at 330°C of wet-white leather shavings.

Retention time (min)	Assignments	Possible source	Relative amount
20.199	4-Chloro-3-methylphenol	Synthetic tannin	12
23.172	Pyrrole-2-carboxamide	Proline	27
25.871	Xanthine	Glycine	10
26.805	2-Hydroxybiphenyl	Synthetic tannin	29
32.864	Phenol[2,3-e]pyrimidine(1,3,4 H)2-one	Tyrosine	21
34.433/35.117	Hexahydropyrrolo[1,2-a]pyrazine-1,4-dione 2 methyl	Proline + alanine	25/18
36.396	Hexahydropyrrolo[1,2-a]pyrazine-1,4-dione	Proline + glycine	100
39.065	5,10-Diethoxy-2,3,7,8, tetrahydro-1H,6H-dipyrrolo [1,2-a; 1ʹ, 2ʹ-d] pyrazine	Two prolines	32
42.984	Chlorohydroxyl biphenyl	Synthetic tannin	8
44.506	Hexahydro pyrrolo[1,2-a]pyrazine 2-isobutyl-1,4-dione	Proline + leucine or isoleucine	21