Puspadewa, Fabian Danandjaya (2016) Pengaruh Akselerator Dan Penambahan Vinil Ester Terhadap Sifat Mekanik Dan Stabilitas Termal Polimer Blend Poliester Tak Jenuh / Vinil Ester Sebagai Kandidat Matriks Komposit Kapal. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Resin Polieseter Tak Jenuh (RPTJ) sering digunakan sebagai matriks dari komposit karena harganya murah dan mudah curing, tetapi kekuatan tarik, regangan, dan stabilitas termalnya rendah.
Resin Vinil Ester, (RVE) ditambahkan pada resin poliester tak
jenuh sebagai polimer blend poliester tak jenuh/vinil ester (PTJ/VE) dengan komposisi 0, 10, 20, 30, 40, 80, dan 100 (%berat) untuk meningkatkan sifat mekanik dan stabilitas termalnya. Proses
curing dilakukan pada temparatur kamar dan kecepatan
pemgadukkan yang konstan dengan inisiator MEKP 4wt% baik tanpa akselerator maupun dengan.akselerator cobalt naphthanete
0,1wt%. Spesimen diuji dengan menggunakan FTIR, SEM, Uji
Tarik, Uji Kekerasan, Uji Waktu Curing, Uji Rasio Swelling dan TGA. Penambahan vinil ester mampu meningkatkan kekuatan
tarik, elongasi, kekerasan dan stabilitas termal. Kekuatan tarik
maksimal pada komposisi 40% vinil ester, 35,9 MPa (PTJ/VE) dan
34,5 MPa (PTJ/VE/akselerator). Komposisi 80% vinil ester
temperatur degradasi 5% pada 322oC (PTJ/VE) dan 307oC (PTJ/VE/akselerator). Kekerasan maksimal pada komposisi 20%
vinil ester yaitu 80,5 shore D baik dengan akselerator maupun
tidak. Dari hasil karakterisasi yang didapatkan, pengaruh akselerator dapat mempercepat waktu curing dan meningkatkan rasio swelling, sehingga polimer blend ini dapat dijadikan sebagai kandidat matriks komposit kapal.
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Unsaturated polyester resin (
UPR) is widely used as a thermoset
matrix composites because it’s cheap and easy to cure, but have lowest mechanical and thermal properties. Vinyl ester resin (VER)
added to UPR as a polymer blend of unsaturated polyester / vinyl
ester (
UP/VE) with a composition of 0, 10, 20, 30, 40, 80, and 100 (wt%) to improve the mechanical properties and thermal stability. The curing process is conducted at room temperature and constant
mixing speed with 4wt% MEKP as initiator and also both with the
addition of Cobalt Naphthanete 0,1wt% as accelerator and
without.. The specimens were tested using FTIR, SEM, Tensile
Test, Hardness Test, Curing Time Test, Swelling Rasio Test and
TGA. The addition of vinyl esters can improve tensile strength,
elongation, hardness and thermal stability. Maximum tensile
strength
achieved in the composition of 40% vinyl ester is 35.9
MPa (UP/VE) and 34.5 MPa (UP/VE/ accelerator). At the
composition of 80% vinyl ester, degradation temperature of 5% weight at 322oC (UP/VE) and 307oC (UP/VE/ accelerator).
Maximum hardness achieved in the composition of 20% vinyl ester
is 80.5 shore D both with accelerator and without. From the
characterization result showed that effect of accelerators speed up
curing time and increase swelling rasio. So this polymer blend can
be used as a composite matrix candidate for boat.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 620.118 Pus p-1 |
| Uncontrolled Keywords: | poliester tak jenuh, vinil ester, polimer blend, metil etil keton peroksida, cobalt napthanate |
| Subjects: | Q Science > QC Physics > QC173.4.C63 Composite materials |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 15 Nov 2019 03:13 |
| Last Modified: | 15 Nov 2019 03:13 |
| URI: | http://repository.its.ac.id/id/eprint/71817 |
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