PENGARUH VARIASI WAKTU REFLUKS PADA PROSES DAUR ULANG POLIETILEN TEREFTALAT DENGAN METODE HIDROLISIS

DIANTOMO, ZAKARIA WAHYU (2014) PENGARUH VARIASI WAKTU REFLUKS PADA PROSES DAUR ULANG POLIETILEN TEREFTALAT DENGAN METODE HIDROLISIS. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Daur ulang limbah plastik polietilen tereftalat (PET) telah
dilakukan dengan metode reaksi hidrolisis dengan proses refluks
pada suhu 120°C, menggunakan katalis asam sulfat 7,4 M dan
variasi waktu refluks selama 4 sampai dengan 12 jam dengan
interval 2 jam. Rendemen terbanyak didapatkan pada variasi
waktu refluks 12 jam sebesar 81,97%. Hasil rendemen kemudian
dianalisis menggunakan Fourier Transform Infrared (FTIR),
Thermogravimetric Analyzis (TGA), dan Differential Scanning
Calorimetry (DSC). Analisis FTIR menunjukkan adanya gugus
fungsi karbonil (C=O stretch) pada sekitar bilangan gelombang
1680 cm-1, gugus fungsi hidroksil (-OH stretch) pada sekitar
bilangan gelombang 2550 cm-1 – 3100 cm-1 dan gugus fungsi
aromatik (C-H stretch aromatik) pada sekitar bilangan gelombang
3000 cm-1. Hasil analisis termal TGA menyatakan dekomposisi
rendemen hasil reaksi hidrolisis terjadi pada rentang suhu
41,67°C - 296°C dengan penurunan massa yang hilang sebesar
0,031 %. Hasil analisis termal DSC menyatakan rendemen hasil
reaksi hidrolisis memiliki titik leleh sebesar 296,17°C. Dari hasil
analisis-analisis yang telah dilakukan dan berdasarkan penelitianpenelitian
terdahulu dapat disimpulkan bahwa rendemen hasil
reaksi hidrolisis adalah monomer asam tereftalat.

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Waste plastic recycling polyethylene terephthalate (PET)
has been carried out by the method of hydrolysis reaction with
reflux process at a temperature of 120 ° C, using 7.4 M sulfuric
acid catalyst and time variation reflux for 4 to 12 hours with
intervals of 2 hours. The yield of the highest obtained at 12 h
reflux time variation of 81.97%. Yield results then analyzed using
Fourier Transform Infrared (FTIR), Thermogravimetric Analyzis
(TGA), and Differential Scanning Calorimetry (DSC). FTIR
analysis showed the presence of carbonyl functional group (C = O
stretch) at about 1680 cm-1, the hydroxyl functional group (-OH
stretch) at about 2550 cm-1-3100 cm-1 and aromatic functional
groups (CH stretch aromatic) at around 3000 cm-1. The results of
thermal analysis TGA decomposition yield results expressed
hydrolysis reaction occurs at a temperature range of 41.67°C -
296°C with a decrease in the mass loss of 0.031%. The results of
thermal analysis DSC stated yield results hydrolysis reaction has
a melting point of 296.17°C. From the results of analyzes that
have been conducted and based on previous studies it can be
concluded that the yield of the reaction products of hydrolysis are
terephthalic acid monomer.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSKi 620.192 Dia p
Uncontrolled Keywords:	Asam tereftalat, Daur ulang, Depolimerisasi, Hidrolisis, Polietilen tereftalat (PET), Refluks
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD789 Refuse and refuse disposal
Divisions:	Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Mr. Tondo Indra Nyata
Date Deposited:	13 Jan 2017 03:39
Last Modified:	13 Jan 2017 03:39
URI:	http://repository.its.ac.id/id/eprint/1535

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