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- Syakbaniah

Jurusan Fisika, Universitas Negeri Padang, Sumatera Barat, Indonesia

Author-ID : 3511588

Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Pengaruh kerapatan terhadap koefisien absorbsi bunyi papan partikel serat daun nenas (Ananas comosus L Merr) (Effect of density on sound absorption coefficient of pineapple leaf fiber particle board (Ananas comosus L Merr)) Wahyudil Hayat; - Syakbaniah; Yenni Darvina
PILLAR OF PHYSICS Vol 1 (2013)
Publisher : Department of Physics – Universitas Negeri Padang UNP

ABSTRACTThe main objective of this study was to determine the effect of density on board sound absorption coefficient of the particle board pineapple leaf fiber which will be applied as a silencer. Preparation of the sample begins with the separation of basic ingredients, followed by the manufacture of rectangular samples with a size of 9 × 9 × 0.5 cm using a machine felts, then the acoustic characteristics of the specimens were tested using a resonance tube. From the research that has been done can be concluded that at low density the greater the density of the sound absorption coefficient of the particle board pineapple leaf fiber, the greater the coefficient absorbsinya. At high density, the sound absorption coefficient down.Keywords: absorption coefficient, pineapple fiber, acoustic material.

Pengaruh variasi komposisi serat tandan kosong sawit (TKS) dan serbuk kayu terhadap sifat fisis dan sifat mekanis papan partikel (The effect of variations in the composition of the fiber composition of the empty palm fruit bunches and sawdust on physical and mechanical properties of particleboard) Fadillah Ulfah; - Syakbaniah; Yenni Darvina
PILLAR OF PHYSICS Vol 5 (2015)
Publisher : Department of Physics – Universitas Negeri Padang UNP

This study aims to determine the effect variations composition of Palm Empty Fruit Bunch (EFB) and wood dust on the physical properties and mechanical properties of particle board. Particle board is made from EFB fiber and wood dust and added 30% adhesive. each particle boards have various compositions. In this study, the independent variable in the form of variations in the composition of the EFB fiber and wood dust that is 20: 80%, 40: 60%, 50: 50%, 60: 40%, 80%: 20%. The dependent variable in the form of physical properties such as moisture content, density, and mechanical properties such as flexural strength and compressive strength.. In general the values obtained physical and mechanical propertiesare density, flexural strength, compressive strength which is optimal in the variation 50% EFB : 50% wood dust, but the moisture content obtained optimal value at variation 40% EFB: 60% wood dust. All fulfill the SNI standard except for the value of the flexural strength

Optimalisasi konduktivitas ionik dan sifat mekanik bahan polimer elektrolit padat baterai berbasis kitosan dengan penambahan plasticizer (etilen glikol dan gliserol) (Optimization of ionic conductivity and mechanical properties of chitosan-based solid electrolyte polymer materials with the addition of plasticizers (ethylene glycol and glycerol) Luzi Lovita NK; - Syakbaniah; Evi Yulianti
PILLAR OF PHYSICS Vol 5 (2015)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Have been obtained solid-state electrolyte based on chitosan by the casting technique from a solution containing of chitosan, montmorillonite, LiClO4 and plasticizer by using two different types of plasticizers are: ethylene glycol and glycerol. This study purpose to know what is the concentration of ethylene glycol and glycerol as plasticizer can be obtained solid-state electrolyte based on chitosan with ionic conductivity and mechanical properties are optimum for rechargeable battery applications. Ionic conductivity properties were characterized by using LCR meter, mechanical properties were characterized by mechanical tests, and microstructure using optical microscopy. The results showed that the optimum composition obtained in 50% ethylene glycol with an ionic conductivity of 1,26 x 10-3 S/cm, tensile strength of 41,59 MPa and 77,5% elongation. At the optimum conditions obtained in glycerol concentration of 25% with an ionic conductivity of 2,51 x 10-3 S / cm, tensile strength of 32,14 MPa and 69,3% elongation. Of both plasticizer, glycerol give better ionic conductivity and films produced by using glycerol are smoother and it`s texture looks more evenly, while ethylene glycol gives better mechanical properties.

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