Table 2: Surface hardness and elastic modulus of the INI treated fibers.

INI treatment conditionsSurface hardness (MPa)Elastic modulus (GPa)
Temperature (°C)Na2CO3 : CaCl2, mol : molMeanStdev.LSDMeanStdev.LSD

Untreated fiber287.91113.75A4.641.73A
1001 : 1264.8326.36A4.880.43A
1001 : 2272.3151.35A5.400.68A
1301 : 1423.2547.89B7.080.78B
1301 : 2458.19112.81B8.211.03B
1601 : 1213.2687.56A4.301.00A
1601 : 2295.5742.39A5.280.50A

Stdev.: means standard deviation. Average of four samples. Means with the different letter are significantly different at .