Abstract
Generally, detoxification fabrics are defined as fabrics that remove or inhibit the production of toxic compounds, especially chemical warfare agents such as nerve gas agents. They are usually prepared using a complicated and time-consuming method. This study suggests a facile treatment method for preparing detoxification fabrics against nerve gas agents using polyethyleneimine and microwave curing. The detoxification properties of polyethyleneimine and microwave-treated polypropylene nonwoven fabric were evaluated using diisopropylfluoro-phosphate, which is a nerve agent simulant. The treated polypropylene fabric decontaminated 53.6% of diisopropylfluorophosphate (DFP) in 2 h at 32 °C, and the half-life of DFP on the surface of the treated fabric was 122 min. The result indicates that the treated fabric can act as a basic organocatalyst for the DFP hydrolysis and has a shorter half-life owing to the large number of amine groups. Therefore, the facile treatment method has the potential for use in the preparation of detoxification fabrics.
Highlights
Chemical warfare agents (CWAs) are extremely toxic compounds and can be dangerous when inhaled or when they come into contact with the human body
This study investigates the use of PEI and microwave curing as a facile fabric detoxification This study investigates the use of PEI
The PEI-treated polypropylene fabrics were prepared by varying the microwave curing time from 2 to 14 min at 2 min intervals
Summary
Chemical warfare agents (CWAs) are extremely toxic compounds and can be dangerous when inhaled or when they come into contact with the human body. Detoxification fabrics that are capable of detoxifying nerve agents have been investigated to protect the human body against nerve agents They are prepared using catalyst materials, which can facilitate the hydrolysis of nerve agents. Kim et al reported that zirconium hydroxide was coated on nylon using the sol–gel method hydrolyze 10–37% of DFP in 2 h at 32 °C [9]. Kim et al reported that zirconium hydroxide was coated to prepare detoxification fabrics, which exhibited only 40% of DFP hydrolysis to DHP [10]. Kwon et al prepared detoxification fabrics by treating a chitosan (Gu-chitosan) using the pad–dry–cure method, which exhibited only 60.1% of DFP hydrolysis cotton fabric with guanidinylated chitosan (Gu-chitosan) using the pad–dry–cure method, which toexhibited.
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