Biological Resistance and Application Properties of Particleboards Containing Nano-Zinc Oxide

Table 4

Linear correlation analyses between the proportion of nano-ZnO in MUF glues (x → _(ZnO)/_(MUF)) and the selected properties of PBs containing nano-ZnO (y).

Properties of PBs	n	R	R^2	T	P	y = a + b × x
Density (kg·m^−3)	30	−0.03	0.00	−0.16	0.88	641.3 − 0.06 × /
Thickness swelling after 2 h (%)	40	0.11	0.01	0.70	0.49	6.49 + 0.01 × /
Thickness swelling after 24 h (%)	40	−0.05	0.00	−0.32	0.75	18.12 − 0.01 × /
Water absorption after 2 h (%)	40	−0.15	0.02	−0.92	0.36	17.19 − 0.03 × /
Water absorption after 24 h (%)	40	−0.27	0.07	−1.70	0.10	45.47 − 0.14 × /
Internal bond strength (N·mm^−2)	50	−0.39	0.16	−3.03	0.00	0.40 − 0.004 × /
Bending strength (N·mm^−2)	30	−0.13	0.02	−0.79	0.43	9.03 − 0.02 × /