Production and Modification of Cellulose Nanocrystals from Agave tequilana Weber Waste and Its Effect on the Melt Rheology of PLA

Table 1

Contact angles (°), dispersive (), polar () components, and surface energy () of CNC and CNC/2-EHA.

Sample	Contact angle θ (°)			(mJ/m^−2)	(mJ/m^−2)	(mJ/m^−2)
	Diiodomethane	Ethylene glycol	Water
CNC	26.5 ± 1.6	27.2 ± 4.5	44.8 ± 5.4	30.7	22.9	53.6
CNC/2-EHA	25.2 ± 2.7	52.7 ± 9.0	73.2 ± 1.4	36.8	5.5	42.3

, , and correspond to the dispersive and polar components and the total surface tension, which are 49.5, 1.3, and 50.8 mJ/m⁻² for diiodomethane; 29, 19, and 48 mJ/m⁻² for ethylene glycol; and 21.8, 51, and 72.8 mJ/m⁻² for water, respectively [14].