Table 4: Tensile strength and tensile modulus of INI treated fiber/PP composites.

Tensile Strength (MPa)Tensile Modulus (GPa)
INI treatmentsMeanStdev.LSD TestMeanStdev.LSD Test

Untreated46.773.43A1.700.20A
100°C, 1 : 149.233.77AB1.880.11B
100°C, 1 : 251.652.57B1.960.15BC
130°C, 1 : 150.203.30B1.930.22BCD
130°C, 1 : 251.612.51B2.050.11DE
160°C, 1 : 151.414.33B2.140.22E
160°C, 1 : 250.944.31B1.990.16BE

1 : 1 and 1 : 2 means the molar ratio of Na2CO3 to CaCl2. Average of 27 samples. Means with the same letter are not significantly different at . Stdev: standard deviation of the mean.