Natural rubber composites as thermal neutron radiation shields - II - H3BO3/NR composites

摘要

Different amounts of boric acid (H3BO3) Were mixed with a conductive natural rubber (loaded with 40 phr of HAF carbon black) to get thermal neutron radiation shielding composites. It was found that the total macroscopic cross-section reaches 0.29 cm(-1) at 30 phr of H3BO3. The dependence of thermal and electrical properties of such composites on the concentration of H3BO3 was also studied. Thermal oxidative aging was found to markedly affect the above properties. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 14]