Nafi'ah, Nurin (2022) Analisis Pengaruh Kecepatan Pengadukan dan Temperatur Curing terhadap Sifat Mekanik dan Sifat Termal Shape Memory Polyurethane sebagai Kandidat Material Embolisasi. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Salah satu penyakit berbahaya yang menyerang organ
pembuluh darah manusia adalah penyakit aneurisma berupa
pembengkakan pembuluh darah yang dapat menimbulkan
komplikasi. Embolisasi menggunakan Shape Memory Polyurethane
(SMPu) merupakan salah satu metode penanganan lebih aman
untuk digunakan saat ini. Sebagai kandidat material embolisasi,
maka harus memperhatikan kesesuain sifatnya terhadap tubuh
manusia, seperti sifat mekanik dan sifat termal. Penelitian ini
bertujuan untuk menganalisis pengaruh kecepatan pengadukan dan
temperatur curing terhadap sifat mekanik dan sifat termal dari
Shape Memory Polyurethane. Proses sintesis Shape Memory
Polyurethane menggunakan metode one-shot dengan bahan utama
yaitu 1-6-Hexametilen Diisosianat (HDI), Polytetramethylene
glycol (PTMG), 1,4:3,6-Dianhydro-D-sorbitol (Isosorbide), dan
Tungsten dengan variasi kecepatan pengadukan yaitu 300, 800,
1300 rpm dan temperatur curing yaitu 100, 110, dan 120 ºC.
Adapun pengujian yang digunakan adalah pengujian Fourier-
Transform Infrared Spectrometer (FTIR) untuk menganalisis gugus
fungsi, tensile untuk menganalisis sifat mekanik, Differential
Scanning Calorimetry (DSC) untuk menganalisis temperature glass
transition (Tg), radiopasitas menggunakan X-Ray untuk
menganalisis sifat radiopasitas, dan shape recovery untuk
menganalisis shape memory effect (SME) dari SMPu. Hasil
viii
pengujian FTIR menunjukkan bahwa telah terbentuk polyurethane
pada semua spesimen serta urea pada spesimen variasi kecepatan
pengadukan 300 dan 800 rpm serta variasi temperatur curing 100
ºC. Hasil pengujian tensile menunjukkan bahwa peningkatan
kecepatan pengadukan dan temperatur curing dapat meningkatkan
nilai UTS (Ultimate Tensile Strength) dan modulus young, serta
menurunkan elongation, dengan nilai UTS tertinggi 9,36 N/mm2,
modulus young terendah 8,8 N/mm2, dan elongation tertinggi 39,92
%. Hasil pengujian DSC menunjukkan bahwa peningkatan
kecepatan pengadukan dan temperatur curing dapat meningkatkan
Tm (melting temperature) dari SMPu dengan Tm tertinggi 79,62 ˚C.
Hasil pengujian radiopasitas menggunakan X-Ray menunjukkan
bahwa SMPu belum mampu mencapai brightness yang dimiliki oleh
logam Aluminium standar. Namun nilai brightness dapat
ditingkatkan dengan menurunkan nilai potensial yang digunakan,
dimana brightness tertinggi dihasilkan pada potensial 45 kV. Hasil
pengujian Shape Recovery menunjukkan bahwa peningkatan
kecepatan pengadukan dan temperatur curing dapat mempercepat
waktu shape recovery, dengan waktu recovery terkecil adalah 6
detik. Meskipun demikian, sifat mekanik dan thermal dari SMPu
juga dapat dipengaruhi oleh terbentuknya urea dan gelembung
udara didalam urethane.
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One of the dangerous diseases that attack human vascular
organs is aneurysm disease in the form of swelling of blood vessels
that can cause complications. Embolization using Shape Memory
Polyurethane (SMPu) is one of the safer treatment methods for use
today. As a candidate for embolization material, it must pay
attention to the naturality of the human body, such as mechanical
properties and thermal properties. This study aims to analyse the
effect of stirring speed and curing temperature in mechanical and
thermal properties of SMPu. This synthesis process uses the oneshot
method with the main material are 1-6-Hexametilen
Diisosianat (HDI), Polytetramethylene glycol (PTMG), 1,4:3,6-
Dianhydro-D-sorbitol (Isosorbide), and Tungsten with variations in
stirring speed of 300, 800, 1300 rpm and curing temperature of 100,
110, 120 ºC. This research also uses Fourier-Transform Infrared
Spectrometer (FTIR) testing to analyse functional groups of SMPu,
tensile testing to analyse mechanical properties, Differential
Scanning Calorimetry (DSC) testing to analyse temperature glass
transition (Tg), radiopacity testing with X-Ray to analyse
radiopacity properties, and shape recovery to analyse the shape
memory effect (SME) of SMPu. The results of the FTIR test showed
that polyurethane had been formed in all specimens and urea in
specimens of variations in stirring speeds of 300 and 800 rpm as
x
well as variations in curing temperatures of 100ºC. Tensile test
results showed that increased stirring speed and curing temperature
could increase UTS (Ultimate Tensile Strength) and young modulus
values, as well as decrease elongation, with a top UTS value of 9.36
N/mm2, the lowest young modulus is 8.8 N/mm2, and the highest
elongation is 39.92%. DSC test results showed that increased
stirring speed and curing temperature can increase the Tm (melting
temperature) values of SMPu with the highest Tm 79.62 °C. The
results of radiocapacity testing using X-Rays showed that SMPu had
not been able to achieve the brightness possessed by standard
Aluminum metal. However, the brightness value can be increased by
lowering the potential value used, where the highest brightness is
generated at a potential of 45 kV. Shape Recovery test results
showed that increased stirring speed and curing temperature can
speed up shape recovery time, with the smallest recovery time being
6 seconds. Nevertheless, the mechanical and thermal properties of
SMPu can also be affected by the formation of urea and air bubbles
in the urethane.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Aneurisma, Polyurethane, Sifat Mekanik, Sifat Termal, Aneurysm, Polyurethane, Mechanical Properties, Thermal Properties |
| Subjects: | T Technology > TP Chemical technology > TP1140 Polymers |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Nurin Nafi'ah |
| Date Deposited: | 04 Feb 2022 07:56 |
| Last Modified: | 01 Nov 2022 03:34 |
| URI: | http://repository.its.ac.id/id/eprint/92807 |
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