The best value (29 kJ/m2) was measured in cotton/PLA composites, followed by cotton/PLA treated with lignin (24 kJ/m2). Thus, the impact strength was decreased by the treatment with lignin by approximately 17%
The best value (29 kJ/m2) was measured in cotton/PLAcomposites, followed by cotton/PLA treated with lignin(24 kJ/m2). Thus, the impact strength was decreased by thetreatment with lignin by approximately 17%