Preparation of Reed Straw-Based Panels Bonded by Soy-Based Adhesives: Optimization via Response Surface Methodology

Table 2

Variables and levels used in RSM design.

Coded and uncoded variables	Levels
Factors	−1	0	1
Adhesive amount (X1, %)	15	20	25
Hot-pressing temperature (X2, °C)	120	130	140
Hot-pressing time (X3, min)	18	24	30