Pemanfaatan Serat Rami Dan Lem Latex Sebagai Peredam Suara Pada Kap Mesin Mobil Terhadap Absorbsi Suara Dan Water Vapor Transmission Rate

Istiawan, Dicky (2023) Pemanfaatan Serat Rami Dan Lem Latex Sebagai Peredam Suara Pada Kap Mesin Mobil Terhadap Absorbsi Suara Dan Water Vapor Transmission Rate. Undergraduate thesis, Politeknik Negeri Jember.

	Text (Abstrak) Abstrak.pdf - Accepted Version Available under License Creative Commons Attribution Share Alike. Download (220kB)
	Text (Bab 1 Pendahuluan) BAB 1 Pendahuluan.pdf - Accepted Version Available under License Creative Commons Attribution Share Alike. Download (469kB)
	Text (Laporan Lengkap) Teks Full.pdf Restricted to Registered users only Download (2MB) | Request a copy
	Text (Daftar Pustaka) Daftar Pustaka (2).pdf - Accepted Version Available under License Creative Commons Attribution Share Alike. Download (329kB)

Abstract

Hemp fiber is a plant that has a high fiber content and has strong characteristics, a light mass, and resistance to sunlight, and the strength of the fiber does not change. A silencer is one of the tools used to weaken sound or reduce the number of sounds that occur. This hemp fiber composite material can be used as a silencer. This research aims to determine the effect of the two mixtures of materials that have different mixture variations for each specimen and the results of the sound absorption test and which variation has the best results. This research was conducted at the Jember State Polytechnic. The method used in this research is an experimental method where researchers want to find out the cause and effect between independent and dependent variables. In this research, the use of variations in the composition of materials consists of composition A (90% latex: 10% hemp fiber and composition B The result of the sound transmission class test on composition A with an average value of 29.4 dB, in composition B of 29.6 dB, and in composition C of 31.3 dB. ). The result of the water vapor transmission rate test on composition A with the highest value of 0.022 (g), composition B of 0.112 (g), and composition C of 0.274 (g). So it can be concluded that the higher use of hemp fiber as a damping material can increase the value of the transmission loss and the value of the water vapor transmission rate. The best composition is composition C because it has the highest hemp fiber volume value than the other compositions

Actions (login required)

View Item