基于超疏水氮化硼纳米管不锈钢滤网的滤芯设计与试验研究  

Superhydrophobic boron nitride nanotube stainless steel filter:Design and experimental analysis

作　　者：张列 冯永保 李良 何祯鑫 李淑智 韩小霞 ZHANG Lie;FENG Yongbao;LI Liang;HE Zhenxin;LI Shuzhi;HAN Xiaoxia(School of Missile Engineering,Rocket Force University of Engineering,Xi’an 710025,China)

机构地区：[1]火箭军工程大学导弹工程学院,西安710025

出　　处：《兵器装备工程学报》2025年第3期275-286,共12页Journal of Ordnance Equipment Engineering

摘　　要：针对液压系统中油液被杂质、少量水污染腐蚀问题,采用Fe粉作为催化剂,以B∶B 2O 3=1∶4作为原料,利用“气液固”机制1250℃退火法在NH 3气氛下的管式炉中制备了超疏水氮化硼纳米管不锈钢滤网,经测试,水滴在其表面的接触角约为150°,滑动角约为3°。在超疏水氮化硼纳米管不锈钢滤网材料的基础上,采用胶粘搭接法进行打褶滤芯合缝,利用9片氮化硼纳米管不锈钢滤网基材设计出滤芯内骨架涂层,其内外骨架有效过滤面积约为52015 mm^(2),且新型具有超疏水性能的过滤滤芯符合设计要求,利用特氟龙滤芯材料作为对照组进行污染度检测和水分离检测,污染度检测数据表明,新型超疏水滤芯结构滤芯的过滤比约为2519.0,特氟龙滤芯过滤比约为256.4,新型超疏水滤芯结构滤芯过滤比是样品的90%;在水净化试验中,新型超疏水滤芯结构的平均水分离效率约为29.33%,特氟龙滤芯水分离效率约为26.16%。The superhydrophobic boron nitride nanotube stainless steel mesh was prepared by using Fe powder as catalyst and B∶B 2O 3=1∶4 as raw material.The superhydrophobic boron nitride nanotube stainless steel mesh was prepared by annealing at 1250℃in a tube furnace under NH 3 atmosphere.The contact angle of water droplets on its surface is about 150°and the sliding angle is about 3°.The superhydrophobic boron nitride nanotube stainless steel filter material with a length of 80 mm and a width of 30 mm was used as the filter element substrate,and the pleated filter element was seamed by the adhesive lap method.The 9 pieces of boron nitride nanotube stainless steel filter substrate can design the required filter element inner skeleton coating,and the effective filtration area of the inner and outer skeletons is about 52015 mm^(2).And the new filter element with superhydrophobic performance meets the design requirements.The Teflon filter material was used as the control group,and the new filter element with boron nitride nanotube stainless steel filter as the filter element coating was used for pollution detection and water separation detection.The pollution detection data showed that the filtration ratio of the new superhydrophobic filter element structure filter element was about 2519,the filtration ratio of the Teflon filter element was about 256.4,and the filtration ratio of the new superhydrophobic filter element structure filter element was 90%of the sample.In the water purification experiment,the average water separation efficiency of the new superhydrophobic filter structure is about 29.33%,and the water separation efficiency of the Teflon filter is about 26.16%.

关 键 词：氮化硼纳米管 过滤滤芯 除杂疏水性能 过滤比 平均含水量 

分 类 号：TH122[机械工程—机械设计及理论]