Konduktifitas termal didefinisikan

Konduktifitas termal didefinisikan sebagai ilmu untuk mengetahui perpindahan energi karena perbedaan suhu diantara benda atau material. Material yang dapat menghantarkan panas dengan baik disebut konduktor sedangkan yang kurang baik disebut isolator. Konduktifitas termal merupakan fungsi suhu dan akan bertambah sedikit kalau suhu naik, akan tetapi variasinya kecil dan sering dapat diabaikan.Dalam penelitian ini difokuskan tentang menentukan nilai tetapan atau nilai konduktifitas termal suatu material komposit resin polyester dengan penambahan partikel montmorillonite (MMT). Penambahan partikel montmorillonite ini dilakukan dengan variasi ukuran partikel, dengan harapan komposit dengan penguat partikel montmorillonite mempunyai sifat isolator dan ketahan panas yang baik. Metode yang digunakan adalah hand lay up. Variabel yang digunakan meliputi variasi ukuran partikel dengan ukuran mesh 20, 40, 60, 80, 100,120, dan 150. Dari penelitian diperoleh hasil nilai konduktifitas termal. Nilai konduktifitas termal optimal komposit yaitu sebesar 14 mW/moC,  pada ukuran mesh 60. Sedangkan untuk nilai konduktifitas termal minimal komposit sebesar 4 mW/moC, pada ukuran mesh 20. Nilai konduktifitas termal komposit berada di bawah nilai konduktifitas termal sempel kontrol (tampa penambahan partikel montmoriilonite). Dari analisa data, dapat disimpulkan bahwa semkin besar ukuran partikel maka semakin baik menghambat panas dan kekuatan komposit semakin kuat dibandingkan dengan sempel kontrol.

Hasil (Inggris) 1:

Thermal conductivity is defined as the science of knowing the energy transfer due to temperature difference between objects or material. Material that can conduct heat well called conductors while the less well called an insulator. Thermal conductivity is a function of temperature and will increase slightly if temperature rises, but the variations are small and often negligible. In this research is focused on determining the value of thermal conductivity values or constants of a polyester resin composite material with the addition of a particle of montmorillonite (MMT). The addition of montmorillonite particles is done by particle size variations, with the hope of composite particle with amplifier has an insulating properties of montmorillonite and thickness, good heat. The method used is hand lay up. Variables used include variation in particle size with the size of the mesh 20, 40, 60, 80, 100.120, and 150. The results obtained from the study of thermal conductivity values. The value of the thermal conductivity of composite optimal i.e. of 14 mW/moC, mesh size 60. As for the value of the thermal conductivity of composite minimum of 4 mW/moC, at the size of the mesh. The thermal conductivity of composite value is below the value of the thermal conductivity of sempel control (tampa addition of particles to montmoriilonite). From the analysis of the data, it can be concluded that the large particle size semkin then the better inhibit heat and power compared to the stronger composite sempel control.

Hasil (Inggris) 2:

Thermal conductivity is defined as the science to determine the energy transfer because of the temperature difference between objects or material. A material that can conduct heat well known conductor while the less well known insulator. Thermal conductivity is a function of temperature and will increase slightly if the temperature rises, but the variation is small and often can diabaikan.Dalam this research is focused on determining the constant value or the value of the thermal conductivity of a composite material of polyester resin with the addition of particles of montmorillonite (MMT). The addition of montmorillonite particles is accomplished by variations in particle size, in the hope of reinforcing composites with montmorillonite particles having insulating properties and good thermal resilience. The method used is the hand lay up. Variables used include variations in particle size with a mesh size of 20, 40, 60, 80, 100.120 and 150. From the research results of thermal conductivity values. Optimal thermal conductivity value of the composite at 14 mW / MOC, the mesh size of 60. The market value of the thermal conductivity of the composite minimum of 4 mW / MOC, the mesh size of 20. The value of the thermal conductivity of the composite is below the thermal conductivity of the sample of controls (without the addition of montmoriilonite particles). From the data analysis, it can be concluded that semkin larger particle size, the better the inhibiting heat and power stronger than the composite sample of controls.