Preparation and Properties of Natural Leather-Tungsten Fast Neutron Moderating Materials
Journal Title: Leather Science and Engineering - Year 2025, Vol 35, Issue 2
Abstract
A composite neutron moderating material, designated NL/Wn@AR, was fabricated using natural leather (NL) as the base material and carboxylated tungsten nanoparticles (W@AR) as the functional component. The composite material was prepared with varying tungsten molar concentrations of 0.76, 2.85, 5.12, and 6.98 mmol/cm³, respectively. The energy attenuation behavior of NL/Wn@AR for 4.4 MeV neutrons was simulated using the Monte Carlo N-Particle (MCNP) code. Simulation results indicated that the moderating ability of NL/Wn@AR was enhanced with the increase of thickness. At a given thickness, the moderated thermal neutron flux of NL/W@AR with 5.12 mmol/cm³ tungsten concentration approximated that of polyethylene, while NL/W@AR with 6.98 mmol/cm³ tungsten concentration surpassed it. Experimental validation of the materialâs moderating capacity was conducted using an Am-Be neutron source. The experimental results aligned with MCNP simulations, confirming that after moderation, NL/W@AR with 5.12 mmol/cm³ tungsten concentration exhibited comparable performance to polyethylene, while NL/W@AR with 6.98 mmol/cm³ tungsten concentration demonstrated superior effectiveness. Notably, NL/Wn@AR possesses enhanced physical and mechanical properties compared to polyethylene while maintaining excellent neutron moderating ability, highlighting its potential for diverse applications.
Authors and Affiliations
Jinchao ZENG,Jibo ZHOU,Hao LI,Xuepin LIAO,Bi SHI,
Keywords
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