Sintesis Komposit Resin-Gd2O3 Untuk Aplikasi Perisai Radiasi Neutron

Abstract

Synthesis of resin composites with Gd₂O₃ filler for neutron radiation shielding applications has been carried out. The material used as a neutron shield is a resin which is added 10%, 20%, and 30% Gd₂O₃. Resin and Gd₂O₃ were mixed using a mixer for 1 hour and then a catalyst was added as a resin hardener. The mixture is then put into a mold with an inner diameter of 24.5 mm, an outer diameter of 30 mm, and a height of 25 mm. The prints were dried for 3 hours. The results of characterization with SEM at 1000x magnification show that the sample surface is quite compact and dense and does not show pores. The results of the EDS test showed that in the resin sample with the addition of higher Gd₂O₃, there was an increase in the percentage of Gd in the sample. The results of the compressive test using the Universal Tensile Machine showed that the compressive strength on pure resin without Gd₂O₃ was 5167 N, on resin with the addition of 10% Gd₂O₃ was 5088 N and on resin with the addition of 20% Gd₂O₃ was 1088 N while on resin with the addition of 30% Gd₂O₃ of 612 N. It can be seen that with the addition of Gd₂O₃ to the resin there is a decrease in its ability to withstand pressure.