KARAKTERISASI DAN PEMBUATAN POLIURETAN DARI SERBUK KAYU MAHONI SEBAGAI POLIMER BIODEGRADABLE
ABSTRACT: Mahoni wood
(Swietenia macrophylla King) contains holoseloluse and lignin. This research
has been conducted to using lignin from
mahoni wood for made polyurethane
Isolate lignin is product isolation mahoni degradation with method
increasing 4 gram isolate lignin into 150 ml ethylene glycol content 25 gram
solution NaOH. The result of degradation used to synthesis polyurethane, then
content of LT-PEG with methylen 4.4 difenil diisocyanaate (MDI) become
polyurethane. To identified isolate
lignin and product degradation lignin has been conducted to characterized with
UV and FTIR method. The result shows that the specified spectra at maximum
wavelength at 280 nm and 248 nm. While result from FTIR spectra shows that
spevtra at wavenumber 1296 cm-1 and 1249 cm-1 is shows of propile guaiasil
group. The function group propel siringile. While lignin from kind at
siirngile, while the spectra at 1354 cm-1. The result synthesis polyurethane to
characterized by the mechanical properties analysis with Tensile tester machine.
It is therefore mechanical properties shows that Tensile strength and Young
modulus bigger wuth enhancing lignin of content into polyurethane but
percentage elongation increase.
Keywords: Mahoni wood, isolate lignin, degradation
lignin, polyurethane
Penulis: Mohammad WIJAYA, I
Made ARCANA
Kode Jurnal: jpkehutanandd090056
