Table 2. Testing Results for Thermoformed Material Specimens with and without 40% Added Lignin^a.

fiber type	added lignin	tensile strength (MPa)	Young’s modulus (MPa)	density (kg/m3)	water uptake (wt %)	mass loss (wt %)
bleached CTMP	none	42.9 ± 2.4	2960 ± 78	939 ± 6	192 ± 11	2.0 ± 2.4
	organosolv	34.8 ± 3.3	3659 ± 154	1096 ± 13	123 ± 18	2.7 ± 0.5
unbleached CTMP	none	34.4 ± 3.2	2349 ± 35	915 ± 5	175 ± 18	1.1 ± 0.7
	organosolv	32.5 ± 2.9	2857 ± 188	1067 ± 12	103 ± 12	4.4 ± 0.5

^aEach data point was averaged over four measurements.