A novel composite air purification material with high filtering efficiency,low resistance and anti-static adsorp-tion properties is prepared.The intermediate layer of the material is submicro-fiber membrane,and the upper and lower lay-ers are high temperature resistant glass fiber materials and pre-filtration layer industrial fiber respectively.The resistivity and filtration efficiency of this composite material is analyzed.The results show that the filtration efficiency for particles of 2μm can reach 99.93%,while the pressure is only 490 Pa.A certain proportion of carbon black particles is added in the sandwich layer fibers to improve the electrostatic property of the material.The resistivity of this sandwich purification material significantly reduces from 5.8×1010Ω·m to 6.0×109Ω·m after the addition of 5%nano-carbon black particles in the inner sub-micro-fiber membrane,and this is the reason that the electrostatic property of the sandwich material has been improved.%研究了一种过滤效率高，过滤阻力小，同时具有防静电吸附性能的复合空气夹心净化材料的制备方法。该材料中间层为亚微米纤维膜，上、下两层分别为耐高温材料玻璃纤维和预过滤层工业滤布。通过对此复合材料电阻率以及过滤效率的测定表明，这种过滤材料对粒径为2μm 颗粒的过滤效率可以达到99．93％，同时压力降只有490 Pa；在夹心层纤维中加入一定比例的碳黑颗粒，可提高导电性，以改善材料静电性能。当加入5％纳米碳黑颗粒后，夹心净化材料的电阻率由5．8×1010Ω·m降为6．0×109Ω·m，有明显降低。
展开▼
