Evaluation the degree of grafting on OPMF, SiO₂ biocomposite

Linear low density polyethylene (LLDPE) is a type of polymer was blended with filler SiO₂ at a ratio 95:5 , 90:10 and 85:15 by extrusion to study the degree of grafting of the product and compared it with other journal. The maleic anhydride (MA) was grafted into LLDPE-SiO₂ to determine the possible reaction. The LLDPE-g-MA composite filled with SiO₂ were extruded and melt-pressed in order to prepared samples for evaluating the degree of grafting (DOG) and Fourier-Transform Infrared Spectroscopy (FTIR) testing. The FTIR showed the interaction between LLDPE-g-MA and SiO₂ and it also will affect the mechanical strength. The FTIR testing for sample before and after purification were done. The result show that there are stretching vibrations Si-O-Si show for all sample. The DOG % is increasing when SiO₂ ratio is increasing.