皮革科学与工程2025，Vol.35Issue(2)：30-37,8.DOI:10.12472/j.issn.1004-7964.202400142
天然皮革-钨快中子慢化材料的制备及性能研究
Preparation and Properties of Natural Leather-Tungsten Fast Neutron Moderating Materials
摘要
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 material's 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.关键词
天然皮革/钨/复合材料/中子慢化/能量衰减Key words
natural leather/tungsten/composite material/neutron moderation/energy attenuation分类
通用工业技术引用本文复制引用
曾进超,周继博,李昊,廖学品,石碧..天然皮革-钨快中子慢化材料的制备及性能研究[J].皮革科学与工程,2025,35(2):30-37,8.基金项目
国家自然科学基金(22278279) （22278279）
