A Comprehensive Review on Bast Fibre Retting Process for Optimal Performance in Fibre-Reinforced Polymer Composites

Table 7

Relative environmental, economic, and strength performance for the chelator, combined chelator, and enzyme-treated hemp-reinforced polypropylene composite [165].

Treatment	Environmental impact	Treatment cost				Composite strength (MPa)
		Chemical	Energy	Equipment	Processing
EDTMP treatment, 5 g/l	Low	Lowest	Lowest	Lowest	Lowest	41.55
EDTMP treatment, 10 g/l	Low	Low	Lowest	Lowest	Lowest	42.3
EDTMP treatment, 5 g/l followed by pectinase retting	Low	High	High	High	High	41.73
EDTMP treatment, 5 g/l followed by laccase retting	Low	High	High	High	High	41.41