Evaluation of Water Diffusion Mechanism on Mechanical Properties of Polypropylene Composites

Table 2

Fiber constituents after chemical treatments.

Samples	Lignin	pH	% ash content		% cellulose	% hemicellulose
KOH-treated fibers	10.55	6.73	5.9		67.87	31.36
NaOH-treated fibers	9.29	7.45	4.35		54.79	40.88