PbWO₄ Synergistically Modified with Styrene Maleic Anhydride and Bis(dioctyl pyrophosphate) Ethylene Titanate in Highly Filled Polymer Fibers for Enhanced γ‐Ray Shielding Safety and Wear Comfort of Articles

Abstract

personal protective equipment (PPE) is of vital importance to radiation protection safety of nuclear personnel involved. [4][5][6] Currently, the PPE is fabricated with rubber-based composites containing high atomic number (high Z) fillers such as lead (Pb), tungsten (W), and bismuth (Bi). [7][8][9][10][11] Although it has various merits such as flexibility for wearability, its poor permeability for air and water vapor is negative to channel sweat away during work, which causes reduced wear comfort and then affects working efficiency. [12,13] Therefore, it is urgent to develop flexible materials with permeability for enhanced wear comfort and radiation protection safety of PPE.Many studies have attached importance to fabrics bearing heavy metals to meet the requirements. This is due to the fact that overlapped fabrics shield high-energy photons meanwhile offer curving passages for permeability. Coating high-Z fillers on textiles has the ability to shield highenergy photons while it tends to be peeled off and reduce permeability. [14][15][16][17][18][19] Alternatively, polymer fibers containing high-Z fillers for fabrics seems to address wear comfort meanwhile radiation shielding safety. Some high-Z fillers, such as Bi 2 O 3 , WO 3 , Bi 2 WO 6 , and BaSO 4 , have been intensely applied to fabricated various polymer fibers for shielding X-rays. [20][21][22][23][24][25] Note that current polymer fibers are generally filled with no more than 40 wt% fillers. This is due

Large-Scale Fabrication of Highly Filled Polymer Fibers for Radiation Protection Safety and Wear Comfort of Multilayer Fabrics in Complex Radiations

“…Rich hydrogen bonds are constructed between PVA and PMA on the surfaces of BC particles for intensifying the interface interaction, which contributes to stabilizing PVA suspensions without sediments at high loading BC particles. , Third, BC@PMA/PVA fibers with various loadings (from 0 to 55 wt %) of BC particles are obtained by wet spinning. Meanwhile, 70 wt % PWO@SMA/PVA fiber is also prepared with the similar route that has been reported in our previous work. , Finally, 50 wt % BC@PMA/PVA and 70 wt % PWO/PVA fibers are woven into BC/PVA and PWO/PVA fabrics, respectively. Multilayer fabrics with overlapping BC/PVA and PWO/PVA fabrics not only have the ability to jointly shield neutrons and γ-rays but also allow for air and water vapor permeability.…”

“…Meanwhile, 70 wt % PWO@SMA/PVA fiber is also prepared with the similar route that has been reported in our previous work. 26,27 Finally, 50 wt % BC@PMA/PVA and 70 wt % PWO/PVA fibers are woven into BC/PVA and PWO/PVA fabrics, respectively. Multilayer fabrics with overlapping BC/PVA and PWO/PVA fabrics not only have the ability to jointly shield neutrons and γ-rays but also allow for air and water vapor permeability.…”

“…It can be verified with the FT-IR results that the hydroxyl absorption peaks of BC@PMA/PVA shift to the lower wavenumber (Figure S6, Supporting Information). ,− Namely, surface modification of BC particles with PMA gives rise to intense interfacial interactions in the nanocomposite, which promotes the compatibility of interfaces and refrains from the formation of defects. Despite that, incompatibility interfaces and voids have been observed at highly filled PVA fibers, which gradually increase with the loading of BC particles, as shown in Figure d,f.…”

Preparation of Nano-PbWO4 Particles by Polymaleic Acid Modification: A Highly Filled Nonwoven Membrane Used To Improve the Wearing Comfort and Radiation Safety of γ-ray Protection Products

“…Then, WO 4 2– is added to Pb 2+ , resulting in the formation of PbWO 4 (PWO) through a typical precipitation reaction. Finally, the PMA was adsorbed on the PWO particles by electrostatic action to form a PMA-coating layer, and the PWO@PMA particles were successfully prepared . Subsequently, the aqueous PVA solution was mixed with PWO@PMA.…”

“…Finally, the PMA was adsorbed on the PWO particles by electrostatic action to form a PMA-coating layer, and the PWO@PMA particles were successfully prepared. 38 Subsequently, the aqueous PVA solution was mixed with PWO@ PMA. The presence of PMA reduces the size of PWO particles and enhances their zeta potential on their surfaces, ensuring even dispersion within the PVA solution.…”