Porous Absorber of Noise Control Panel Manufacturing From Coconut Fiber and Pet Waste Fiber (Shoody Fiber)

Abstract

Noise exposure could have a negative effect on humans in the form of hearing loss, sleep disturbances, high blood pressure and heart problems, respiratory and metabolic disorders, mental health disorders and cognitive impairment. So noise control efforts are needed. Noise control efforts was carried out by making porous absorber of noise control panel by utilizing abundant natural resources in the form of coconut fiber, utilization of PET fiber from textile waste (shoody fiber) and low melt polyester. From the test results obtained that all combinations meet the criteria for sound absorption from class B to E, and the results of maximum absorption are 0.88 absorption coefficient obtained by a combination of three layers between 50% coconut fiber, 20% shoody fiber and 30% low melt polyester.

Pengaruh Fraksi Volume Komposit Polyester Berpenguat Limbah Serbuk Kayu Bangkirai terhadap Sifat Material Akustik

“…Berdasarkan Gambar 10 menunjukkan perbandingan nilai koefisien absorbsi suara dari komposit fraksi filler 0 %; 20 %; 40 %; 60%; 100 % serbuk kayu bangkirai dan glasswool sebagai material peredam suara konvensional [13] dijadikan pembanding pada frekuensi 125 Hz, 250 Hz, 500 Hz, 1000 Hz, dan 2000 Hz. Dari data penelitian diatas menunjukkan jika fraksi filler komposit mempengaruhi nilai α dari setiap masing-masing frekuensi.…”

“…Berdasarkan Gambar 11 menunjukkan nilai rata-rata koefisien absorbsi suara (α) dari komposit fraksi filler 0 %; 20 %; 40 %; 60 %; 100 % serbuk kayu bangkirai dan glasswool yang diambil dari peneltiain Islam dkk. [13]. Nilai rata-rata koefisien absorbsi suara (α) dari penelitian ini, nilai tertinggi pada fraksi filler 60 % sebesar 0,46 dan fraksi filler 100 % sebesar 0,49.…”