| dc.description.abstract | Research has been conducted on the manufacture of biodegradable plastics using corn
cob cellulose nanofibers with glycerol plasticizers. This study aims to determine the
effect of the comparison of the composition of cellulose and chitosan nanofiber
samples, which is 30% : 70%, 40% : 60%, 50% : 50, 60% : 40%, and 70% : 30% with
a variation of 60%, 80%, and 100% glycerol. By using the melt intercalation method,
which is a phase inversion technique with solvent evaporation after the printing
process carried out on glass plates. The results of particle size testing using PSA found
that the average diameter of corn cob cellulose nanofibers was 0,50971 μm. The
physical characteristics showed an optimum thickness value was 0.274 mm, a density
value was 1.987, and a water absorption value was 55.00%. The results of mechanical property characteristics showed that the tensile strength value was 0.9166
MPa and the elongation value at break was 195.78%. The biodegradable plastic
degradability test showed a biodegradable value of 75% during 28 days or 4 weeks of
planting. The results of the characteristics of biodegradable plastic microstructure
showed SEM results which showed that the surface morphology was quite even and in
some samples there was agglomeration caused by chitosan that had not been
completely dissolved. The FT-IR results showed the characteristics of biodegradable
plastic functional groups with the components of biodegradable plastics was O-H, CH, and C=O. | en_US |
