PEMBUATAN DAN KARAKTERISASI PLASTIK CAMPURAN SELULOSA DARI LIMBAH PADAT TAPIOKA (ONGGOK) DAN LDPE MENGGUNAKAN SINGLE SCREW EXTRUDER

Ruli Prayetno, 1017011070 (2014) PEMBUATAN DAN KARAKTERISASI PLASTIK CAMPURAN SELULOSA DARI LIMBAH PADAT TAPIOKA (ONGGOK) DAN LDPE MENGGUNAKAN SINGLE SCREW EXTRUDER. Fakultas MIPA, Universitas Lampung.

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Abstrak

ABSTRAK PEMBUATAN DAN KARAKTERISASI PLASTIK CAMPURAN SELULOSA DARI LIMBAH PADAT TAPIOKA (ONGGOK) DAN LDPE MENGGUNAKAN SINGLE SCREW EXTRUDER Oleh Ruli Prayetno Telah dilakukan penelitian pembuatan plastik campuran selulosa dari limbah padat tapioka (onggok) dan LDPE menggunakan Single Screw Extruder. Plastik dibuat dalam bentuk film menggunakan split capilarity dies. Campuran plastik ditambahkan gliserol sebagai plasticizer dengan variasi selulosa sebagai variabel tetap dan sebaliknya. Hasil penelitian menunjukan bahwa plastik yang dihasilkan sedikit lebih kaku akibat penambahan selulosa. Karakteristik film plastik dilakukan menggunakan DSC untuk mengetahui sifat termal plastik. Termogram DSC menunjukan penambahan selulosa mengakibatkan pergeseran titik leleh dari LDPE, sedangkan penambahan gliserol mengakibatkan penurunan titik leleh dari campuran film plastik. Uji dekomposisi plastik menggunakan TG/DTA dan didapatkan data bahwa besarnya proses dekomposisi plastik tidak stabil akibat tidak homogennya campuran selulosa-LDPE. Hasil plastik terbaik dari komposisi ini selanjutnya dikarakteristik menggunakan FTIR dan hasil FTIR tersebut menunjukan bahwa plastik hanya bercampur tanpa terjadi interaksi kimia karena hanya terjadi pergeseran panjang gelombang. Kata Kunci: LDPE, Selulosa, Extruder, Gliserol, DSC, TGA ABSTRACT PREPARATION AND CHARACTERIZATION OF PLASTIC FROM THE MIXTURE CELLULOSE OF SOLID WASTE TAPIOCA AND LDPE USING SINGLE SCREW EXTRUDER By Ruli Prayetno Plastic from the mixture of cellulose and Low Density Polyethylene (LDPE) had been made by using single screw extruder. Plastics were made in the form of film using split capillarity dies. Mixture of plastic was added with glycerol as plasticizer with variations of cellulose as fixed and variable on the contrary. The results show that the plastic produced slightly more rigid due to the addition of cellulose. The thermal properties of film plastics was Differential Scanning Colorimetry (DSC). The DSC thermogram shows the addition of cellulose resulted in shifting melting point of LDPE, while the addition of glycerol resulted in decreasing melting point of a mixture of plastic film. The decomposition process of film plastic using TG/DTA show that the amount of plastic decomposition process is not stable due to unhomogeneous mixture of cellulose-LDPE. The best results from the composition of the plastic is then characterized using FTIR and FTIR results showed that only mixed plastics without chemical interaction because only a shift in wavelength. Keyword: LDPE, Cellulose, Extruder, Glycerol, DSC, TGA.

Jenis Karya Akhir: Skripsi
Subyek: > Karya Karya Umum = 000
Program Studi: Fakultas MIPA > Prodi Kimia
Pengguna Deposit: 0773328 . Digilib
Date Deposited: 24 Dec 2014 04:08
Terakhir diubah: 24 Dec 2014 04:08
URI: http://digilib.unila.ac.id/id/eprint/6081

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