. 2018 Oct 5;10(10):1100. doi: 10.3390/polym10101100

Table 4.

Density, water absorption and resistance of PU resins.

Code	Density (kg/m³)	Water absorption (%)	Water retention (g/cm³)	Weight retention (%)
P-2-2	25.7 ± 0.6^EF^,1	43.0 ± 4.5^AB	0.11 ± 0.01^B	99.0 ± 0.1^A
P-2-3	17.8 ± 0.3^B	61.4 ± 4.1^CD	0.11 ± 0.01^B	99.2 ± 0.7^A
P-2-4	13.3 ± 0.2^A	88.6 ± 3.7^E	0.12 ± 0.01^B	99.0 ± 0.1^A
P-3-2	25.8 ± 0.4^F	36.1 ± 2.8^A	0.09 ± 0.01^AB	99.2 ± 0.1^A
P-3-3	24.1 ± 0.8^E	42.2 ± 3.3^AB	0.10 ± 0.01^AB	99.2 ± 0.1^A
P-3-4	17.8 ± 0.3^B	65.7 ± 5.5^D	0.12 ± 0.01^B	98.3 ± 1.8^A
P-4-2	25.0 ± 1.4^EF	33.8 ± 3.5^A	0.08 ± 0.01^A	98.6 ± 0.1^A
P-4-3	21.0 ± 0.7^C	49.9 ± 6.4^BC	0.11 ± 0.01^B	98.5 ± 0.2^A
P-4-4	22.2 ± 0.3^D	50.7 ± 6.2^BC	0.10 ± 0.01^AB	98.5 ± 0.1^A

¹ Means and standard deviation with different capital letters indicate significant differences between PU resins using Tukey’s multiple range tests at p < 0.05.