为了延长油雾净化器静电芯体的清洗时间间隔,对铝合金静电芯体集尘极板表面进行涂层改性.以商业化的PFDTS、PV-10000和自研的DLZH01为原料,用浸渍法在盐刻蚀粗化表面和未粗化的铝合金静电芯体集尘极板表面制备出PFDTS、PV-10000和DLZH01低表面能涂层.对比研究表明:未粗化表面的低表面能涂层使用的有效时长比盐刻蚀粗化表面的长;而所用的3种原料中,DLZH01相比于PV-10000和PFDTS所制备的静电芯体具有更高的使用时长,为未改性芯体的3.12倍;并且所得涂层还具有良好的成膜性,较高的硬度(≥4H)、优异的附着力(≥1级),接触角可达106°.因此,自制的DLZH01更适用于静电式油雾净化器的使用工况,大幅度延长了清洗时间间隔,提高了净化效率,能够满足产品优化的实际要求.

In order to extend the cleaning time interval of the electrostatic core of the oil mist purifier,the surface of the dust collecting electrode plate of the aluminum alloy electrostatic core is modified by coating.Using commercialized PFDTS,PV-10000 and self-developed DLZH01 as raw materials,PFDTS,PV-10000 and DLZHO1 low surface energy coatings were prepared on the salt-etched roughened surface and the surface of the unroughened aluminum alloy electrostatic core dust collecting electrode plate by immersion method.The comparative study showed that the effective time of the low surface energy coating on the non-roughened surface was better than that of the salt-etched roughened surface;Among the three raw materials used,DLZHO1 had a longer service life than the electrostatic core prepared by PV-10000 and PFDTS,which was 3.12 times that of the unmodified core.And the obtained coating also had good film-forming properties,high hardness(≥4H),excellent adhesion(≥1 level),and a contact angle of up to 106°.Therefore,the self-developed DLZH01 was more suitable for the working conditions of the electrostatic oil mist purifier,which greatly extended the cleaning time interval,improved the purification efficiency,and could meet the actual requirements of product optimization.