Studi Eksperimental Laju Keausan Material Gigi Tiruan Dari Resin Akrilik Berpenguat Fiber Dengan Variasi Susunan Serat Penguat

Kristasari, Prastika (2016) Studi Eksperimental Laju Keausan Material Gigi Tiruan Dari Resin Akrilik Berpenguat Fiber Dengan Variasi Susunan Serat Penguat. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Resin akrilik adalah salah satu material fiber reinforced composite yang mulai banyak digunakan dalam bidang industri saat ini. Material ini digunakan sebagai salah satu material untuk pembuatan gigi tiruan. Penelitian sebelumnya tentang analisis pengujian laju keausan resin akrilik berpenguat serat pada dental prosthesis pada kondisi dry slidding menunjukkan hasil nilai laju keausan berkurang dengan adanya penambahan serat. Namun, saat ini belum ada kajian mengenai laju keausan resin akrilik berpenguat serat pada kondisi wet sliding dengan variasi pola susunan serat yang berbeda. Penelitian ini bertujuan untuk mengetahui keausan yang terjadi pada material gigi tiruan dari resin akrilik berpenguat serat dengan kondisi terendam cairan saliva buatan. Analisis tribologi dilakukan untuk menganalisis aspek– aspek dari segi gesekan dan karakteristik keausan antara kontak dua permukaan. Metode yang dilakukan adalah pengujian ekperimental dengan menggunakan alat uji keausan tribometer tipe pin on disk. Material untuk pin dan disk menggunakan material dari resin akrilik. Disk diputar dan bergesekan dengan pin yang telah diberi beban tertentu. Variabel tetap pengujian ini yaitu panjang lintasan sejauh 505,92 m, beban sebesar 2 kg, dan sliding speed sebesar 0,07 m/s. Perlakuan gesekan dilakukan pada resin akrilik berpenguat serat dengan variasi susunan serat 0%, 7% berpola 6 mm serat acak, dan 7% berpola 6 mm serat teratur. Material tersebut direndam dahulu dan pada saat pengujian keausan dikondisikan terendam dalam cairan saliva buatan. Kemudian, spesimen uji tersebut dianalisis laju keausannya dan diamati gambar mikro dari permukaan spesimen tersebut. Hasil dari penelitian tentang laju keausan spesifik material gigi tiruan dari resin akrilik berpenguat fiberglass dengan variasi susunan serat penguat berupa resin akrilik dengan 0% serat, 7% serat teratur, dan 7% serat acak adalah data pengujian berupa nilai laju keausan spesifik sebesar 0.0126 mm3 /Nm yang terdapat pada material resin akrilik tanpa penguat serat yang memiliki nilai specific wear rate terbesar. Sedangkan nilai laju keausan yang terkecil yaitu pada material resin akrilik berpenguat 7% serat berpola teratur dengan nilai specific wear rate sebesar 0.0006 mm3 /Nm. Hasil foto mikro dengan perbesaran 100 kali menunjukkan bahwa mekanisme keausan yang paling dominan terjadi adalah keausan abrasif dan keausan fatigue. ================================================================================================================== Acrylic resin is one of the fiber reinforced composite material that is widely used in industry today. This material is used as a material for the manufacture of dentures. Previous research on the wear rate test analysis acrylic resin with reinforcement fibers on the dental prosthesis in dry conditions sliding shows the results of the wear rate is reduced with the addition of fiber. However, there is currently no study on the wear rate acrylic resin with reinforcement fibers in condition of wet sliding with a variation of the configuration of different fibers. This study aims to determine the wear that occurs in denture material of acrylic resin with reinforcement fibers with artificial saliva liquid on a submerged conditions. Tribology analysis was conducted to analyze the aspects in terms of friction and wear characteristics between the two contact surfaces. The method used is an experimental test using the test tool wear Tribometer type of pin on disk. Material for the pin and disk using a material of acrylic resin with reinforcement fibers. Disk rotated and rub with a pin that has been given a certain load. These tests remain variable path length as far as 505.92 m, a load of 2 kg, and the sliding speed of 0.07 m/s. Friction treatment performed on acrylic resin with reinforcement fibers with fiber composition variation of 0%, 7% 6 mm fiber patterned random, and 7% 6 mm fiber patterned regularly. The material is soaked in advance and at the time of testing the wear conditioned submerged in the liquid artificial saliva. Then, the test specimens are analyzed and observed pattern wear with micro image of the specimen surface. Results of research on the wear rate of the specific material dentures from acrylic resin with reinforcement fiberglass with a variation of the arrangement of reinforcing fibers such as acrylic resin with 0% fiber, 7% fiber regularly, and 7% of the fibers randomly is the test data in the form of the value of wear rate of the specific of 0.0126 mm3 /Nm contained in acrylic resin material without reinforcement fibers that have the greatest value of specific wear rate. While the value of wear rate of the smallest of the acrylic resin material reinforced 7% fiber patterned regularly with the value of specific wear rate of 0.0006 mm3 /Nm. The results of micro photograph with a magnification of 100 times showing that the dominant mechanism of wear that occur are abrasive wear and fatigue wear.

Item Type: Thesis (Undergraduate)
Additional Information: RSM 621.89 Kri s
Uncontrolled Keywords: Fiber glass; wear rate; acrylic resin; denture
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ1077 Lubrication and lubricants.
Divisions: Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: ansi aflacha
Date Deposited: 30 Jun 2020 02:45
Last Modified: 30 Jun 2020 02:45
URI: https://repository.its.ac.id/id/eprint/76254

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