【摘要】 将含表面活性剂脂肪醇聚氧乙烯醚（AEO-9）的氢氧化锂（LiOH）水溶液喷涂在聚丙烯（PP）无纺布表面，并通过真空干燥的方式制备LiOH/PP无纺布复合材料，研究了不同AEO-9浓度及喷涂时间对复合材料负载结构、透气性及二氧化碳（CO₂）吸附性能的影响。结果表明：添加少量的AEO-9可促进LiOH溶液在PP无纺布表层形成负载结构；AEO-9浓度增加，复合材料表层LiOH负载量明显减少，AEO-9浓度较低时复合材料的透气性好；喷涂时间延长，复合材料LiOH负载量增加，透气率下降；在LiOH浓度为100 g/L条件下，AEO-9浓度为0.2 g/L、喷涂时间为7 s时，复合材料单面LiOH负载量达到102.8 mg,透气率为715.51 mm/s, CO₂吸附平衡时间约180 s, CO₂吸附量为2.39 mg/cm²,CO₂吸附效率达49.9%,具有较好的透气性和CO₂吸附性能，优于国内商业化产品。更多还原

【Abstract】 Lithium hydroxide/polypropylene（LiOH/PP） non-woven composite materials were prepared by spraying LiOH aqueous solution containing fatty alcohol polyoxyethylene ether（AEO-9） surfactant onto the surface of PP non-woven fabric prior to vacuum drying. The effects of different concentrations of AEO-9 and spraying time on the loading structure, permeability and carbon dioxide（CO₂） adsorption property of composite materials were studied. The results showed that adding a small amount of AEO-9 can promote the formation of a loading structure of LiOH solution on the surface of PP non-woven fabric; the LiOH loading capacity on the surface of the composite materials significantly decreased as the concentration of AEO-9 increased, and the permeability of the composite materials was good at relatively low concentrations of AEO-9; the LiOH loading capacity of the composite materials increased and the air permeability decreased with the prolongation of spraying time; and the composite materials had a LiOH loading capacity of 102.8 mg on one side of composite material, permeability of 715.51 mm/s, CO₂ adsorption equilibrium time about 180 s, CO₂ adsorption capacity of 2.39 mg/cm² and CO₂ adsorption efficiency of 49.9% under the condition of a LiOH concentration of 100 g/L, AEO-9 concentration of 0.2 g/L and spraying time of 7 s, indicating good permeability and CO₂ adsorption property which was superior to those of commercial products in China.更多还原