| dc.description.abstract | This study aims to reduce waste plastic bottles that are not biodegradabled and to
determine the composition of rice husk ash and rice husk filler in hybrid composites
LBPKM in order to obtain the best results of mechanical properties analysis, such as
tensile strength (tensile strength), flexural strength (flexural strength), and strength bump
(impact strength), also water absorption test (water absorption), Scanning Electron
Microscopy (SEM) analysis, and Fourier Transform Infra-Red (FTIR) have been done. Hybrid composites made using extruder at 265 ° C by mixing waste plastic bottles with
100 mesh particle size rice husk ash and rice husk ash filler, where the ratio between
matrix and filler are 95/5, 90/10 and 85/15 (% w/w in 100 grams) and then hotpressed at
265 ° C for 5 minutes. From the results of FT-IR analysis showed the presence of O-H
functional groups at wave number 3429.43 cm-1
, C-H at 2893.22 and 794.67 cm-1
, C=O at 1720.50 cm-1
, and C-O-C at 1235.73 cm-1
. The results of mechanical properties
analysis showed that the hybrid composite waste plastic bottles-rice husk ash-rice husk
ratio 90/10 obtained maximum tensile strength of 2.711 MPa, Young's modulus of
219.331 MPa, elongation at break of 0.538%, bending strength of 0.954 MPa, and power
bump of 1023.8 J/m2
. The results of SEM analysis on hybrid composite of waste plastic
bottles-rice husk ash-rice husk ratio 90/10 showed the filler spread evenly on the surface
of the matrix. The results of water absorption test showed that the hybrid composite of
waste plastic bottles-rice husk ash-rice husk ratio 85/15 is the highest water absorption’s
composites, that is equal to 3.4671%. | en_US |
