A Partially hydrolyzed poly (vinyl acetate) (PHPVA)-borax complex-based gel-like coating was successfully developed for the decontamination of Simulated nuclear fallout (SFO) from surfaces. The sprayable coating was self-generated on the surface by borate-diol ester bonds after simultaneously mixing two solutions of borax and PHPVA. The SFO particles, synthesized at 1,200°C for melting, were glassy while some crystalline phases (e.g., SiO2 and Fe2O3) existed together. The SFO particles were fixed onto the Stainless steel (SS) substrate by dropping and evaporating water. for examination of the dust-removal performance of PHPVA-borax based coating. The dusts on the SS surface was successfully removed by casting the PHPVA-borax based coating within 1 minute, demonstrating the excellent dust-removal property of the PHPVA-borax based coating. The used PAB complex in wet state was recovered by using vacuum suction machine in short time. The solid-state PHPVA-borax based film was self-delaminated from the SS substrate after fully drying the used PHPVA-borax coating but this requires long period of time.

• Ga-Eun Lee(Chungnam National University (CNU), Korea Atomic Energy Research Institute (KAERI))
• Yewon Jeong(University of Science and Technology (UST), Korea Atomic Energy Research Institute (KAERI))
• Jeong-Yun Jang(Korea Atomic Energy Research Institute (KAERI))
• Hee-Man Yang(University of Science and Technology (UST), Korea Atomic Energy Research Institute (KAERI)) Corresponding author