Kenaf Bast Fibers—Part I: Hermetical Alkali Digestion

Table 3

Surface hardness and elastic modulus of digested fibers.

	80°C	110°C	130°C	160°C
Surface hardness (MPa)
Ave.*	64.25	179.50	224.74	287.91
Stdev.*	45.23	124.07	31.88	113.75
LSD test	A	B	B	B
Elastic modulus (GPa)
Ave.	2.48	3.19	4.98	5.24
Stdev.	1.15	1.68	0.25	1.59
LSD test	A	A, B	B, C	C

*Ave.: average of four samples. Stdev.: standard deviation. Means with the different letter are significantly different at 𝛼=0.05.