Synthesis of Cationic Waterborne Polyurethanes from Waste Frying Oil as Antibacterial Film Coatings

Table 1

Chemical composition of CWPUs with various internal emulsifier contents.

Formula	Mole ratios				SC^a (wt%)	BHMAC^b (wt%)
	NCO	OH
	MDI	Monoglyceride	BHMAC	EG
CWPU-1	0.84	1.0	0.1	0.1	61.37	2.80
CWPU-2	0.91	1.0	0.2	0.1	58.06	5.32
CWPU-3	0.98	1.0	0.3	0.1	55.08	7.56

^aSoft segment content: mass of monoglyceride/mass of (monoglyceride+MDI+EG+BHMAC). ^bBHMAC content: mass of BHMAC/mass of (monoglyceride+MDI+EG+BHMAC).