Epoxy products have been widely applied in industries such as in the fields of automotive, mechanical, electrical, and chemical engineering. Epoxy modified to be done to improve the mechanical properties, thermal stability, physics and chemical resistance. Using of other compounds as curing agents has long been commercialized, but the constraints posed is application of an epoxy thermoset on areas requiring impact strength and thermal stability are still low. One of the modification that has been done is addition of other material as the second material to improve properties of thermoset epoxy. Preparation of research material obtained through the provision of a second material that is RTV silicone rubber. The aim of research to analyze effect of RTV silicone rubber composition (0, 5, 10, 15, 20) wt% of the mechanical properties and thermal stability of thermoset epoxy. Testing and characterization conducted on thermoset epoxy by the addition of RTV silicone rubber. In addition RTV silicone rubber: tensile strength, elongation at break and hardness has decreased, energy and impact strength increased maximum on the addition of 15% RTV silicone rubber respectively 0.294 J and 6175 J / m 2. The maximum degradation of temperature increase in the addition of 15% RTV silicone rubber is 328 and 349 o C respectively at 5 and 10% degradation. Keywords epoxy, RTV silicone rubber, mechanical properties, thermal stability, impact strength. Abstrak Produk epoksi telah banyak diaplikasikan di dunia industri seperti dalam bidang teknik otomotif, mekanik, listrik, dan kimia. Rekayasa terhadap epoksi terus dilakukan untuk meningkatkan sifat mekanik, ketahanan termal, fisika dan kimia. Penggunaan senyawa lain sebagai curing agent telah lama dikomersialkan, namun kendala yang ditimbulkan adalah pengaplikasian termoset epoksi pada bidang yang membutuhkan kekuatan impak dan stabilitas termal masih rendah. Salah satu rekayasa yang dilakukan berupa penambahan material lain sebagai material kedua untuk meningkatkan sifat dari termoset epoksi. Preparasi bahan penelitian diperoleh melalui penyediaan material kedua yaitu RTV silicone rubber secara komerisal. Tujuan penelitian untuk menganalisis pengaruh penambahan RTV silicone rubber dengan komposisi (0, 5, 10, 15, 20) wt% terhadap sifat mekanik dan stabilitas termal termoset epoksi. Pengujian dan karakterisasi dilakukan terhadap termoset epoksi dengan penambahan RTV silicone rubber. Pada penambahan RTV silicone rubber: kekuatan tarik, elongation at break dan kekerasan mengalami penurunan, energi dan kekuatan impak mengalami peningkatan maksimum pada penambahan 15% RTV silicone rubber masing-masing sebesar 0,294 J dan 6175 J/m2. Temperatur degradasi mengalami peningkatan maksimum pada penambahan 15% RTV silicone rubber yaitu 328 dan 349oC masing-masing pada 5 dan 10% degradasi. Kata Kunci epoksi, RTV silicone rubber, sifat mekanik, stabilitas termal, kekuatan impak.
CITATION STYLE
Pakaya, F., Ardhyananta, H., & Wicaksono, S. T. (2017). Mechanical Properties and Thermal Stability of Epoxy/RTV Silicone Rubber. IPTEK The Journal for Technology and Science, 28(1), 7. https://doi.org/10.12962/j20882033.v28i1.2216
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