Karakterisasi Termoplastik Polipropelina (PP) dengan Fillersilika Abu Sekam Padi (ASP) yang Disintesis menggunakan Metode Sol Gel

Abstract

The manufacture of thermoplastic polypropylene with rice husk ash filler has been carried out using the sol gel method. Preparation and synthesis of rice husk ash silica was carried out using HCl IM and NaOH IM solvents. The composition of each thermoplastic was varied and mechanical tests (tensile test, elongation break and Modulus of Elasticity (MOE)) and characterization (X-Ray Diffraction, Scanning Electron Microscopyand X-Ray Fluorescence) were carried out. In this study, five variations of the addition of rice husk ash silica filler were used, namely (0,1,3,5,7 %wt) then pressed with a hotpress machine with an ASTM D638. The prepared rice husk ash silica was then characterized using XRD (X-Ray Diffraction) to determine the crystal size. SEM (Scanning Electron Microscopy) to determine the morphology of thermoplastics. XRF (X-Ray Fluorescence) to determine the elements in thermoplastics. The most optimum composition was obtained at a variation of 5%wt with a tensile strength value of 29.41 MPa. Elongation Break 2.91 mm and MOE of 407.4 MPa. The XRD (X-Ray Diffraction) characterization results show that the silica produced from the preparation of rice husk ash is amorphous and has a size of 0.1 µm. SEM(Scanning Electron Microscopy) results show that the morphology of the sampel is agglomerated, causing clumps og particles in the thermoplastic sampel. XRF (X-Ray Fluorescence) results show that the elements contained in thermoplastic contain 53.99% SiO2, 9.21% K2O, 7.97% Al2O3, 6.13% MgO, 6.10% CaO, and 5.53% Fe2O3.