DEGRADASI, UJI MEKANIK DAN KARAKTERISASI POLIPADUAN POLI ASAM LAKTAT DAN POLI Ε-KAPROLAKTON SEBAGAI BAHAN BAKU BENANG OPERASI SERTA PENGARUH PENAMBAHAN PEMLASTIS POLI VINIL ALKOHOL
| Main Author: | NELLA MERLIANI, 1417011079 |
|---|---|
| Format: | Bachelors NonPeerReviewed Book Report |
| Terbitan: |
FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM
, 2018
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| Subjects: | |
| Online Access: |
http://digilib.unila.ac.id/54789/1/ABSTRAK.pdf http://digilib.unila.ac.id/54789/3/SKRIPSI%20FULL.pdf http://digilib.unila.ac.id/54789/2/SKRIPSI%20TANPA%20BAB%20PEMBAHASAN.pdf http://digilib.unila.ac.id/54789/ |
Daftar Isi:
- Aplikasi polimer Poly Lactic Acid (PLA) dan Poly ε Caprolactone (PCL) dalam dunia medis semakin dikembangkan karena kemampuan polimer ini untuk diterima didalam tubuh secara aman dan tidak berbahaya. Pada penelitian ini dilakukan sintesis, uji degradasi, uji mekanik dan karakterisasi polipaduan PLA dan PCL sebagai bahan baku benang operasi. Untuk mengurangi kekakuan ditambahkan bahan pemlastis poli vinil alkohol (PVA). Metode sintesis dilakukan secara solution casting dilanjutkan dengan pembentukan lembaran film. Uji degradasi menggunakan larutan NaCl 0,9% dan uji mekanik memberikan hasil terbaik pada perbandingan komposisi PLA/PCL 4:1 yang memiliki persentase degradasi sebesar 2,39% dan nilai tensile strength sebesar 17,99 N/mm2 sedangkan PLA/PCL 4:1 dengan penambahan pemlastis PVA memiliki persentase degradasi sebesar 3,47% dan nilai tensile strength sebesar 14,63 N/mm2. Analisis karakterisasi FTIR pada polipaduan menunjukkan adanya pergeseran panjang gelombang yang lebih rendah akibat terbentuknya ikatan hidrogen antarpolimer. Analisis SEM menunjukkan bahwa polipaduan PLA/PCL permukaan serat yang lebih merata dan teratur, sedangkan penambahan pemlastis PVA menyebabkan morfologi polipaduan menjadi tidak teratur dan cenderung berongga. Analisis TGA polipaduan mengalami penurunan stabilitas termal dibandingkan dengan polimer penyusunnya akibat rendahnya interaksi antarpolimer. Kata kunci : Polimer, Poly Lactic Acid (PLA), Poly ε Caprolactone (PCL), Poli Vinil Alkohol (PVA) DEGRADATION, MECHANICAL TESTS AND CHARACTERIZATION POLYBLEND OF POLY LACTIC ACID AND POLY Ε CAPROLACTONE AS RAW MATERIALS FOR SUTURES AND EFFECT OF ADDITION PLASTICIZER POLYVINYL ALCOHOL Application of Poly Lactic Acid (PLA) and Poly ε Caprolactone (PCL) polymers in the medicine are increasingly being developed because the ability of these polymers to be safely and harmlessly received in human body. In this research, synthesis, degradation , mechanical test and characterization of polyblend PLA and PCL were used as raw material for sutures. To reduce the stiffness, poly vinyl alcohol (PVA) as plasticizer was added. The synthesis method is carried out by solution casting followed by the formation of film sheets. The degradation test uses 0.9% NaCl solution and the mechanical test gives the best results on the ratio of PLA/PCL 4:1 composition which has a degradation percentage of 2.39% and a tensile strength value of 17.99 N/mm2 while PLA/PCL 4:1 with the addition of PVA plasticizer has a degradation percentage of 3.47% and tensile strength value of 14.63 N/mm2. FTIR characterization analysis of polyblend shows a lower wavelength shift due to the formation of hydrogen bonds between polymers. SEM analysis shows that the polyblend of PLA/PCL’s film surface is more evenly distributed and regular than the addition of PVA plasticizer gives morphology of polyblend become irregular and tend to be hollow. The TGA analysis of the polyblend has decreased thermal stability compared of constituent polymers due to the low interaction between polymers. Keywords : Polymer, Poly Lactic Acid (PLA), Poly ε Caprolactone (PCL), Poly Vinyl Alcohol (PVA)