Silicone Rubber Development for Medical Model Production

Abstract

The silicone rubber casting material is intended for use as a medical model. Muscle skin and fat which mimic the actual amount of the research done by the chemical stability of selected components and many samples of silicone that are generally sold are adapted and defined by four formulas. Each was subdivided into 10 samples. 5 samples were cast thick and the other 5 were cast thin. Altogether 40 samples were used to measure the stability. At day 1, day 5, day 28, and at 180 days throughout the study were noted, and data collected to measure the degree of a semicircle of wood with vernier calipers and measure the elasticity respectively after 5 days and 180 days with a skin cutometer MPA 580. Comparative analysis of the formula was formulated by program SPSS Data Editor.

The results showed that the silicone rubber formula 3 was the most stable formula. At day 180, it had changed into Fixed Stable state by 12.5%, elasticity by 2.7%, and stability was unchanged. In conclusion, the samples of Formula 3 silicone possess three qualifications, stability, steadiness and elasticity, and was suitable to be used as a casting material for our model which was the most practical purpose.

Keywords: Silicone rubber for medical model, mould making