芯壳结构复合消毒粉的制备及其对2-CEES的消毒性能研究

为改善固体消毒剂的流散性以及对芥子气模拟剂2-氯乙基乙基硫醚(2-CEES)的消毒能力,以环境友好的过氧化物单过氧邻苯二甲酸镁(MMPP)为芯材,以不同吸附材料为壁材,通过流化床包衣技术,制备了新型芯-壳结构复合消毒粉MgO/MMPP,Al_2O_3/MMPP,活性白土(HEAC)/MMPP,并以羟丙基甲基纤维素(HPMC)/MMPP为对照研究了复合消毒粉微观形貌、粒径、流散性能、稳定性和2-CEES的消毒能力等性质。结果表明,复合消毒粉在提高MMPP流散性的同时,表现出良好的热稳定性,且消毒能力有了较大提高,其中MgO/MMPP,Al_2O_3/MMPP对2-CEES的消毒率高于99%,反应产物主要为2-氯乙基乙基亚砜和2-氯乙基乙基砜。通过流化床制备的复合消毒粉比MMPP有更好的消毒能力,这为新型吸附反应型洗消剂的开发提供了技术支撑。

The Preparation of Core-Shell Compound Disinfection Powders and Their Disinfection Performance for 2-CEES

In order to improve the dispersibility of solid disinfectant and the disinfectant ability of the mustard gas stimulant 2-chloroethylethylsulfide (2-CEES),the environment-friendly magnesium monoperoxyphthalate (MMPP) was used as the core material and different adsorbent materials as the wall materials to prepare the core-shell structure compound disinfectants MgO/MMPP,Al2O3/MMPP,and activated clay (HEAC)/MMPP using the fluidized bed coating technology.The microstructure,particle size,dispersion properties,stability and disinfection ability on 2-CEES were studied by using hydroxypropylmethylcellulose (HPMC)/MMPP as the control.The results showed that the compound disinfectant exhibited good thermal stability while improving the dispersibility of MMPP,and the disinfection ability was greatly improved.Among the disinfectants,the disinfection ability of MgO/MMPP,Al2O3/MMPP on 2-CEES were higher than 99％.The reaction products were mainly 2-chloroethyl ethyl sulfoxide and 2-chloroethyl ethyl sulfone.The compound disinfectants prepared by fluidized bed had better disinfection ability than MMPP,which provided the technical support for the development of new adsorption reaction detergents.