Mixture Design Approach on the Physical Properties of Lignin-Resorcinol-Formaldehyde Xerogels

Table 1

Components levels in mass, first, and second design.

Component	EV		DO
	Low level	High level	Low level	High level
Resorcinol	0.04	0.3	0.23	0.23
Lignin	0.004	0.03	0.0315	0.14
Formaldehyde	0.08	0.2	0.17	0.17
Water	0.45	0.8	0.456	0.56
NaOH	0.0003	0.0005	0.0004	0.0035

Fixed values from EV.