This work manifested for the first time that the air filter paper can be optimized as an efficient self-decontaminating material, which will open up new possibilities for the design and manufacture of multifunctional protective materials. The reaction kinetics of HD and VX on the paper was investigated and the half-lives were 2.6 h and 16.2 min, respectively, which demonstrated an outstanding degradation performance. Using GC-MS to detect the decontamination products, it was speculated that HD mainly underwent hydrolysis and elimination reactions, VX mainly underwent hydrolysis and polymerization reactions, and their products were non-toxic or low-toxic. It was found that the paper with a fiber grammage of 50 g m −2, the adhesive of 2% and a Zr(OH) 4 retention rate of 175.0 wt% could completely degrade HD and VX, whose conversion rate exceeded 99.0%, and had a tensile strength of 0.1193 kN m −1, a filtration efficiency of 99.995%, and a pressure drop of 313.6 Pa. The preparation technology of the self-decontaminating air filter paper was optimized. The preparation of the composite material had no impact on the structure of fibers and Zr(OH) 4. The physicochemical properties were characterized by FE-SEM, EDX, XRD and TGA, and the results indicated that Zr(OH) 4 was dispersed uniformly in the paper and filled in the interstices of the glass fiber. Using an alkali-free glass fiber as the base material and zirconium hydroxide as the decontaminant, a self-decontaminating air filter paper that can degrade HD and VX simultaneously was successfully prepared by an intra-pulp addition method, with high filtration efficiency, low pressure drop and moderate tensile strength. If the poison stagnating in the paper is desorbed, it may pose a secondary threat to personnel and make it more difficult to dispose of the scrapped paper. Your browser does not support the audio element.Traditional air filter papers can only filter toxic aerosols without the function of decontamination.
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