Falah, Fajryansya Miftahul (2018) Pengaruh Jenis Polimer dan Wt% Tembaga Terhadap Sifat Fisik dan Mekanik Material Komposit Tembaga/Polimer Sebagai Kandidat Material Peluru Frangible. Undergraduate thesis, Sepuluh Nopember Institute of Technology.
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Abstract
Dunia militer saat ini banyak menggunakan peluru frangible sebagai peluru latih. Peluru ini hancur ketika menabrak target keras, agar lebih mudah dalam fabrikasi dan mengurangi biaya maka digunakan matriks polimer untuk menggantikan matriks metal sebagai bahan dasar peluru frangible. penelitian ini akan menganalisis prototipe proyektil frangible dengan bahan baku komposit matriks polimer termoplastik dengan reinforce serbuk tembaga (Cu). Jenis polimer yang dipergunakan antara lain Polikarbonat (PC), Polipropilena (PP) dan polistirena (PS) dengan metode casting. Dari penelitian yang dilakukan disimpulkan bahwa semakin tinggi wt% Cu maka sifat mekanik Cu akan lebih tinggi dan apabila berbeda jenis material maka hasil yang didapat berbeda pula. Selain itu, semakin tinggi sifat mekanik raw material maka semakin baik sifat mekaniknya. Nilai maksimum didapat pada material komposit Cu/PS pada komposisi 70% Cu dengan kuat tekan 53,08 MPa, modulus elastisitas 2,377 GPa, dan kekerasan 112,27 HV. Jenis polimer dan wt% Cu sangat mempengaruhi sifat fisik, apabila dengan komposisi berbeda dan jenis material yang berbeda maka sifat dan karakteristik material akan berbeda pula dengan pengujian SEM, EDX, dan FTIR yang telah dilakukan. ================ The military world today uses a lot of frangible bullets as a training bullet. The bullet is crushed when crashing into hard targets, making it easier to fabricate and reduce costs then use the polymer matrix to replace the metal matrix as the base material of the frangible bullet. this research will analyze prototype of frangible projectile with material of thermoplastic polymer matrix composite with copper powder reinforce (Cu). Polymer types used include Polycarbonate (PC), Polypropylene (PP) and polystyrene (PS) by casting method. From the research, it was concluded that the higher wt% Cu then the mechanical properties of Cu will be higher and if different material types then the results obtained are different too. In addition, the higher the mechanical properties of raw materials the better the mechanical properties. Maximum values were obtained on Cu / PS composite materials at 70% Cu composition with a compressive strength of 53.08 MPa, a modulus of elasticity of 2,377 GPa, and a hardness of 112.27 HV. Type of polymer and wt% Cu greatly affect the physical properties, if with different composition and different material types, the properties and characteristics of the material will be different from the SEM, EDX, and FTIR tests that have been done.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Komposit,Frangible, Sifat Fisik, Sifat Mekanik, Composite, Frangible, Physical Characteristic, Mechanical Properties |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology T Technology > TS Manufactures U Military Science > U Military Science (General) |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Fajryansya Miftahul Falah |
| Date Deposited: | 20 Aug 2018 03:15 |
| Last Modified: | 24 Feb 2020 04:57 |
| URI: | http://repository.its.ac.id/id/eprint/52475 |
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