Aljabir, Abdullah (2019) Analisis Pengaruh Ketebalan Komposit Poliester Berpenguat Nanoselulosa Dan Fiberglass Terhadap Sound Transmission Class Pada Door Trim Mobil. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kenyamanan berkendara menjadi bagian yang penting diperhatikan dalam dunia otomotif. Sumber kebisingan tertinggi pada kehidupan manusia adalah kendaraan bermotor. Untuk mengurangi kebisingan dari luar kendaraan bermotor tersebut, digunakan material kedap suara. Komposit berpenguat nanoselulosa dan gelas fiber merupakan sebuah alternatif material peredam suara yang ramah lingkungan, yang dapat digunakan pada Door trim mobil . Penelitian ini dilakukan untuk merekayasa material komposit Unsaturated Polyester Resin (UPR) berpenguat nanoselulosa dan Fiberglass untuk bahan peredam suara. Tujuan dari penelitian ini adalah menganalisis pengaruh ketebalan komposit terhadap densitas dan nilai Sound Transmission Loss. Ketebalan yang digunakan adalah 1.5 mm, 2.6 mm dan 3,0 mm. Selain itu material juga diuji FTIR (Fourier Transform Infra Red) untuk mengidentifikasi ikatan kimia yang muncul pada komposit UPR/Nanoselulosa, uji SEM untuk mengetahui morfologi komposit dan uji densitas untuk mengetahui pengaruh ketebalan terhadap densitas. Metode pembuatan komposit yang digunakan adalah metode Hand Lay-up. Metode pengujian berdasarkan ASTM E986 , ASTM E 413, ASTM D792. Hasil Penelitian ini menunjukkan bahwa peningkatan ketebalan komposit dengan metode Handlay up menghasilkan peningkatan nilai Sound Transmission Class (STC). STC pada ketebalan 3.0 mm sebesar STC 30. Peningkatan ketebalan komposit dengan metode Handlay up dengan rasio bahan yang sama menghasilkan nilai densitas komposit yang sama
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Driving comfort is an important part of attention in the automotive world. The highest source of noise in human life is a motor vehicle. To reduce noise from outside the motor vehicle, used sound absorbing material. The composite reinforced by nanocellulose and glass fiber was an environmentally sound alternative soundproof material, which can be used on car trim Door. This research was conducted to engineer the Unsaturated Polyester Resin (UPR) composite material with nanocellulose and Fiberglass for silencer material. The purpose of this research is to analyze the influence of composite thickness to density and value of Sound Transmission Loss. The thickness used was 1.5 mm, 2.6 mm and 3.0 mm. In addition, the material also tested by FTIR (Fourier Transform Infra Red) to identify chemical bonds that appear on UPR / Nanocellulose composites, SEM test to determine composite morphology and density test to determine the effect of thickness to density.. The method of making composite used was Hand Lay-up method. Test method based on ASTM E986, ASTM E 413, ASTM D792. The results of this research indicated that the increase of composite thickness by Hand Lay Up method resulted in the increase of Sound Transmission Class (STC) value. STC of 3.0 mm thickness of composite was STC 30. Increased thickness of composite by Hand Lay Up method with same composition ratio of the forming material resulting same composite density.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 620.118 Alj a-1 2018 |
| Uncontrolled Keywords: | Sound Transmission Loss, Hand Lay-up, Nanoselulosa, Unsaturated Polyester Resin, Fiberglass |
| Subjects: | T Technology > T Technology (General) T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials T Technology > TS Manufactures |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Aljabir Abdullah |
| Date Deposited: | 04 Jun 2021 05:13 |
| Last Modified: | 12 Jun 2021 05:26 |
| URI: | http://repository.its.ac.id/id/eprint/60316 |
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