Table 3.

Mechanical properties of polymer composites incorporated with CNF by liquid feeding method.

Composites	Method of Preparation	Findings (Increment of Mechanical Properties in Comparison to the Neat Polymer, %)		Ref.
PE/PEgMA/3% CNF (TWS)	Liquid feeding of PE/PEgMA/3% CNF in a twin-screw extruder at 50 rpm with a heating temperature profile of 80, 160, 160 and 160 °C.	Tensile strength	55	This study
		Young’s modulus	51
		Flexural strength	195
		Flexural modulus	25
PE/PEgMA/1% CNF (IMB)	Liquid feeding of PE/PEgMA/1% CNF in an internal mixer at 50 rpm for 20 min at 160 °C	Tensile strength	35	This study
		Young’s modulus	32
		Flexural strength	102
		Flexural modulus	5
PCL/PMMA-latex/10% CNF nanocomposites	Liquid feeding of PCL/PMMA-latex/10% CNF at 120 °C, at 30 rpm for 5 min and 100 rpm for 10 min	Tensile strength	44	[32]
		Young’s modulus	158
PCL/20% pulp biocomposite	Liquid feeding of PCL/20% pulp in an extruder at 120 °C, at 30 rpm for 5 min and 100 rpm for 10 min	Young’s modulus	640	[27]
		Yield stress	94
Cellulose acetate butyrate (CAB)/5% cellulose nanowhiskers (CNW) composites	Liquid feeding of CAB/CNW composites in an extruder at 140–170 °C and the screw speed was 150 rpm.	Tensile strength	95	[33]
		Young’s modulus	300
PLA/triethyl citrate (TEC)/chitin nanocrystals (ChNC) composites	Liquid feeding of PLA/TEC/ChNC composites in an extruder at 300 rpm at 170–200 °C	Young’s modulus	300	[34]
		Yield strength	478