Fabricating polymer (low linear density polyethylene) with a natural fiber such as Typha Latifo/ia, will provide a new opportunities to the manufacture a green plastic products. In this study, three objectives have been carried out such as characterization of the Typha Latifolia, effect of different sizes and loading and influences of NaOH modification on fiber towards LLDPE/Typha Latifolia composite. The experimental was prepared by using extruder machine with parameter of 150°C- 160°C temperature and speed of 70rpm. The characterization such as tensile properties (tensile strength, elongation at break and Young modulus), X-ray fluorescence spectrometry (XRF), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) on composites were determined. Results indicated that the distribution of the Fine size Typha Latifolia was very prominent between 99.19 J.!In and 447.37J.!m on particle size analyzer while the coarse in between 1-4 mm. XRF results detected the calcium oxalate monohydrate and potassium, which is accumulated between ultimate Typha Latifolia fibers. The incorporation of Typha Latifolia into LLDPE found that the reduction on tensile strength and elongation at break except for Young's modulus. However, the fine size of Typha Latifolia shows the high value on properties compared with Coarse size at all loading ratios of LLDPE/Typha Latifo/ia composites. The addition of 15% fine size Typha Latifolia with 3% concentration of NaOH treatment demonstrated the optimum value in tensile strength and elongation at break of LLDPE/Typha Latifolia composites excluding young modulus. It was believed
that the hydroxide sodium NaOH on fiber thus improved the tensile properties of the composites. The observation on the morphology of the composites proved that the treatment improved the adhesion between fibers and matrix.
