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Boron-containing UHMWPE sheets are made from ultra-high molecular weight polyethylene(UHMWPE)materials, with boron added in the form of boron carbide (B₄C) or boron oxide (B₂O₃), uniformly dispersed in the matrix at a mass fraction of typically 5% to 30%. The boron-10 isotope has a high neutron absorption cross-section (approximately 3840 barns), which allows it to capture slow neutrons and produce low-hazard secondary radiation.
Boron-loaded polyethylene radiation shielding panels(Borated UHMWPE Sheets) are a core neutron-shielding material developed specifically for nuclear fusion applications. Leveraging a synergistic "hydrogen moderation + boron absorption" mechanism, they effectively address the strong neutron radiation challenge in fusion devices and have become the mainstream option for fusion reactor shielding systems.
200mm thick Borated Polyethylene UHMWPE Sheet is now our new products. Before today, we can only produce the thickness less than 180mm boron polyethylene sheets.
