摘要
为获得具有过滤效率高、防护性能好且制备成本低的PM2.5复合滤材,采用环保型黏合剂如明胶和羧甲基纤维素钠(CMC)的复配溶液,对纺黏非织造布(S)和熔喷非织造布(M)进行层间点黏合复合。实验结果表明,层间黏合方式和黏结点间距对复合滤材的过滤性能和透气性有较大的影响;采用间隔3 cm的点黏合方式制备的SMS型复合滤材,对NaCl气溶胶的过滤效率可到达98%以上且阻力压降在120 Pa以下;所制备的SMS型复合滤材在不同污染天气条件下对PM2.5的过滤效率均在95%以上,且容尘量随污染程度增加而增大。
In order to prepare PM 2. 5 composite filter material with high filtration efficiency, good protectionperformance and low preparation cost, the spun-bonded nonwovens （ S） and melt-blown nonwovens （ M） werebonded between layers by using compound solution of environmentally friendly adhesives such as gelatin and sodiumcarboxymethyl cellulose （ CMC）. The experimental results show that inter-layer bonding method and the spacebetween bonding points greatly influence filtration performance and permeability of composite filter materials. Thefiltration efficiency of SMS composite materials prepared by point bonding method with the interval of 3 cm for NaClaerosol is above 98% , and the resistance pressure drop is below 120 Pa. Moreover, the filtration efficiency of theSMS composite filter material to PM2. 5 is above 95% under different polluted weather, and the dust holding capacityincreases with the increase of pollution degree.
作者
娄辉清
王利娜
闫新
陈增斌
邵丕健
李海伟
胡颖荷
LOU Huiqing;WANG Li’na;YAN Xin;CHEN Zengbin;SHAO Pijian;LI Haiwei;HU Yinghe(School of Textiles;Department of Material and Chemical Engineering,Henan University of Engineering,Zhengzhou 450007,China;Collaborative Innovation Center of Textile and Garment Industry in Henan Province.)
出处
《丝绸》
CAS
CSCD
北大核心
2018年第7期28-34,共7页
Journal of Silk
基金
河南省科技攻关计划项目(162102310401)
河南工程学院博士基金项目(D2017004)
关键词
复合滤材
化学黏合
点黏合
PM2.5
过滤防护性能
composite filter material
chemical bonding process
point bonding method
Particulate Matter 2. 5
filtration and protection performance
