Karakterisasi Termomekanik Plastik Biodegredable Dari Limbah Tongkol Jagung Menggunakan Dynamic Mechanical Analyzer (DMA)

Thoufan, Mochammad Fabet Ali (2017) Karakterisasi Termomekanik Plastik Biodegredable Dari Limbah Tongkol Jagung Menggunakan Dynamic Mechanical Analyzer (DMA). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Bahan dasar film plastik biodegradable ini adalah pati, gliserol dan alpha selulosa dari limbah tongkol jagung. Terdapat lima sampel pada penelitian ini yaitu TS,S5,S30,S50 dan Pembanding. Gugus fungsi pada film plastic biodegredable dapat diketahui melalui analisa menggunakan fourier transform infra red (FTIR). Puncak spektra yang dihasilkan dicocokkan dengan referensi yang ada. Pada sampel TS dan S30 penambahan alpha selulosa tidak berpengaruh terhadap perubahan gugus fungsi. Sampel dengan penambahan alpha selulosa sampel mengalami pergeseran nilai bilangan gelombang namun masih dalam rentang wilayah yang sama. Untuk pengujian mekanik menggunakan Dynamic Mechanical Analyzer (DMA) terhadap temperatur dan diketahui transisi dari rigid ke bentuk liquid pada sampel berkisar antara rentang suhu 43℃-60℃. melting temperature terendah adalah 46℃ pada sampel TS dan tertinggi adalah 71℃ pada sampel S50 sementara 67℃ pada sampel pembanding. penambahan alpha selulosa terbukti mampu meningkatkan sifat termomekanik film plastic biodegradable. ==========================================================================The basic materials of this biodegradable plastic film are starch, glycerol and alpha cellulose from corncob waste. There are five sample in this research that is TS, S5, S30, S50 and Comparator. The functional groups in biodegredable plastic films can be known through analysis using fourier transform infra red (FTIR). The peak of the resulting spectra is matched with the existing reference. In TS and S30 samples the addition of cellulose alpha did not affect the functional group changes. Samples with the addition of alpha cellulose samples experienced a shift in the value of wave numbers but still within the same range of region. For mechanical testing using dynamic mechanical analyzer (DMA) against temperature and it is known that transition from rigid to liquid form in the sample ranges from temperature 43 ℃ -60 ℃. the lowest melting temperature was 46 ℃ in the TS sample and the highest was 71 ℃ in the S50 sample while 67℃ in the comparison sample. As well as the addition of cellulosic alpha proven to improve the mechanical properties of biodegradable plastic film.

Item Type: Thesis (Undergraduate)
Additional Information: RSFi 620.112 32 Tho k
Uncontrolled Keywords: film plastik biodegradable, tongkol jagung, alpha selulosa.
Subjects: Q Science > QC Physics
Q Science > QD Chemistry > QD251.2 Chemistry, Organic. Biochemistry
Q Science > QD Chemistry > Polymerization
Q Science > QD Chemistry > QD320 Cellulose. Hydrolysis
Divisions: Faculty of Science > Physics > (S1) Undergraduate Theses
Depositing User: Moch. Fabet Ali Thoufan
Date Deposited: 14 Feb 2019 03:30
Last Modified: 14 Feb 2019 03:30
URI: http://repository.its.ac.id/id/eprint/58105

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