Putra, Ananda Fatahilah (2023) Pengaruh Komposisi Silika dan Tepung Jagung terhadap Sifat Mekanik, Permeabilitas dan Mikrostruktur Pelet Silika. Other thesis, Universitas Islam Riau.

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Abstract

Silica pellet is a kind of composite ceramic product made from Silica particles are bonded with a binder or matrix then cold pressed. One of the best binders is flour corn, because it has low adhesiveness and viscosity as a composite ceramic reinforcement material. This research aims to create composite pellets using silica and corn flour as reinforcement and bound by polyethylene glycol (PEG). In this study, the composition of silica, corn flour and polyethylene glycol (PEG) with different values ??of 70% : 10% : 20%, 60% : 20% : 20% and 50% : 30% : 20%, compaction process with pressure of 5 Tons for 1 hour. The highest permeability test results occurred in the sample 1, namely 11.0507 mD and the highest compressive strength test results occurred in sample 1 is 0.12 MPa. This is due to the influence of the corn flour content has hygroscopic properties, namely the physical properties of corn flour to absorb molecules water which will be damaged when the flour composition increases corn in each composite pellet sample, while the silica content has hydrophobic properties, namely the physical properties of these molecules are repelled from the mass of water (water repellent) so that the permeability value is high with the large silica composition. However, corn flour helps in the process of forming composite pellets where Corn flour has gelatinization properties.

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